nloader | ae6dbc08e0e21b217352175f916cfd5269c4fd8d5de6bff2d0a93a366f78e8d1

General

Target

subscription_1617056233.xlsb
Size

177KB
MD5

1d1ba411ff36cdd1b1350341624ac008
SHA1

becdec14b92c6d67b3aa28fdbf4293dabb7b0055
SHA256

ae6dbc08e0e21b217352175f916cfd5269c4fd8d5de6bff2d0a93a366f78e8d1
SHA512

89a9df6e41300e05c71af3eb45acd7cd6c3915bc511d00cc2a420c5d3a274a704798b3e48e93ffccd7813ee2a25e96a2c1c1f4d1e84ed86c144f2e79af501ef0
SSDEEP

3072:jMozgZ9S08bSe71IeyGJE+pCm7nXEMyQuvYKrp/wR+bhzKbzvXAJ732:TgLSPB76eyGjwm75yQuvPSjwJr2

Score

10^/10

nloader loader

Malware Config

Extracted

Language

xlm4.0

Source

Signatures

Nloader
Simple loader that includes the keyword 'campo' in the URL used to download other families.
loader nloader

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exerundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2664	1932	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2916	1932	rundll32.exe	EXCEL.EXE

Nloader payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2916-50-0x0000000000130000-0x0000000000139000-memory.dmp	nloader
behavioral1/memory/2916-59-0x0000000000170000-0x0000000000175000-memory.dmp	nloader
behavioral1/memory/2916-55-0x0000000000140000-0x0000000000147000-memory.dmp	nloader
behavioral1/memory/2916-52-0x0000000000120000-0x0000000000126000-memory.dmp	nloader

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2916 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2464 2916 WerFault.exe rundll32.exe
Office loads VBA resources, possible macro or embedded object present

pid	process
2916	rundll32.exe

pid	pid_target	process	target process
2464	2916	WerFault.exe	rundll32.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXEEXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXEEXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" /p %1"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\2	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 03000000000000000200000001000000ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000010000000300000002000000ffffffff	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616193"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02020202020202	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 74003100000000007358fd6b1100557365727300600008000400efbeee3a851a7358fd6b2a000000e601000000000100000000000000000036000000000055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\2\0	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\1	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202020202	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 78003100000000007c58382e11005075626c69630000620008000400efbeee3a851a7c58382e2a0000007c0200000000010000000000000000003800000000005000750062006c0069006300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003600000016000000	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 0000000001000000ffffffff	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "6"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\2\0\MRUListEx = ffffffff	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\3	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202020202	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\NodeSlot = "9"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_Classes\Local Settings	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\1\0\NodeSlot = "5"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

EXCEL.EXEEXCEL.EXE

pid process

1932 EXCEL.EXE
2592 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

taskmgr.exe

pid	process
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

taskmgr.exeEXCEL.EXE

pid process

2456 taskmgr.exe
2592 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

taskmgr.exeEXCEL.EXE

description pid process

Token: SeDebugPrivilege 2456 taskmgr.exe
Token: SeShutdownPrivilege 1932 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	2456	taskmgr.exe
Token: SeShutdownPrivilege	1932	EXCEL.EXE

Suspicious use of FindShellTrayWindow 64 IoCs

Processes:

EXCEL.EXEtaskmgr.exe

pid	process
1932	EXCEL.EXE
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
1932	EXCEL.EXE
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe

Suspicious use of SendNotifyMessage 64 IoCs

Processes:

taskmgr.exe

pid	process
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe
2456	taskmgr.exe

Suspicious use of SetWindowsHookEx 18 IoCs

Processes:

EXCEL.EXEEXCEL.EXE

pid	process
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE
2592	EXCEL.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EXCEL.EXEcmd.exerundll32.exe

description	pid	process	target process
PID 1932 wrote to memory of 2664	1932	EXCEL.EXE	cmd.exe
PID 1932 wrote to memory of 2664	1932	EXCEL.EXE	cmd.exe
PID 1932 wrote to memory of 2664	1932	EXCEL.EXE	cmd.exe
PID 1932 wrote to memory of 2664	1932	EXCEL.EXE	cmd.exe
PID 2664 wrote to memory of 2556	2664	cmd.exe	certutil.exe
PID 2664 wrote to memory of 2556	2664	cmd.exe	certutil.exe
PID 2664 wrote to memory of 2556	2664	cmd.exe	certutil.exe
PID 2664 wrote to memory of 2556	2664	cmd.exe	certutil.exe
PID 1932 wrote to memory of 2916	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 2916	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 2916	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 2916	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 2916	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 2916	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 2916	1932	EXCEL.EXE	rundll32.exe
PID 2916 wrote to memory of 2464	2916	rundll32.exe	WerFault.exe
PID 2916 wrote to memory of 2464	2916	rundll32.exe	WerFault.exe
PID 2916 wrote to memory of 2464	2916	rundll32.exe	WerFault.exe
PID 2916 wrote to memory of 2464	2916	rundll32.exe	WerFault.exe
PID 1932 wrote to memory of 1612	1932	EXCEL.EXE	splwow64.exe
PID 1932 wrote to memory of 1612	1932	EXCEL.EXE	splwow64.exe
PID 1932 wrote to memory of 1612	1932	EXCEL.EXE	splwow64.exe
PID 1932 wrote to memory of 1612	1932	EXCEL.EXE	splwow64.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\subscription_1617056233.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c certutil -decode %PUBLIC%\4123.xsg %PUBLIC%\4123.do1
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\certutil.exe
certutil -decode C:\Users\Public\4123.xsg C:\Users\Public\4123.do1
3⤵
PID:2556

C:\Windows\SysWOW64\rundll32.exe
rundll32 C:\Users\Public\4123.do1,DF1
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 456
3⤵
- Program crash
PID:2464

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1612

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2456

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"
1⤵
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2592

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
1⤵
PID:2140

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
1⤵
PID:1204

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

Filesize
130B

MD5
59ebe82c4a9fecae76ed48cc3bbcc434

SHA1
41b9e1a9d35700786cfe9c468d5971e550cf4730

SHA256
eaac90e9eced9e540a823a8027b7a93b266fb56fa2281e815f6e521c083f927e

SHA512
c4b8002981062dc73862a8b585a6d2409b468f5854ec3584a2fd0fa74f7eabb3d61ce03bacac03898527852d4d66e15f642f0c25f2bc36c965ee798b6a59881b

Download Submit
C:\Users\Public\4123.do1

Filesize
48KB

MD5
f776deb4df137b37dcae5406c8f3a07a

SHA1
f6a31b594fca39c118927405fa4d14353b8fd49a

SHA256
93cc5e6a6b671d9b0124ade32ae8b09269de9f03c5c5e66347fbfc7a8c3b305e

SHA512
4077b4214b4683bb4776d470027e61fcc3cb3e78beb9377674e4a4de9115d52911e39cb29a566ab446c6962a252ce01020ffd616b5854a9d8230414262bfafe2

Download Submit
C:\Users\Public\4123.xsg

Filesize
64KB

MD5
c87e1dee1275fed1f7ee813b97ccb17b

SHA1
e8313978e3c0dff6355b843cd470949c719032c6

SHA256
92bb3324b68e8780d718ed808cb9633dc1ef1f7988d2b85cc0f9f431ed63a63d

SHA512
2d2177413ed0767651789363c2b952ff8fba26de6ebb84a6390af6bc87927577bedf08b802f5bd6e937e7462bddbd707100108ccf6ef4f39ded65bdcb8b40f35

Download Submit
memory/1932-82-0x0000000071D0D000-0x0000000071D18000-memory.dmp

Filesize
44KB

Download
memory/1932-1-0x0000000071D0D000-0x0000000071D18000-memory.dmp

Filesize
44KB

Download
memory/1932-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1932-65-0x0000000006D70000-0x0000000006D71000-memory.dmp

Filesize
4KB

Download
memory/1932-81-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1932-71-0x0000000006D70000-0x0000000006D71000-memory.dmp

Filesize
4KB

Download
memory/1932-62-0x0000000071D0D000-0x0000000071D18000-memory.dmp

Filesize
44KB

Download
memory/1932-66-0x0000000006D90000-0x0000000006D92000-memory.dmp

Filesize
8KB

Download
memory/2456-63-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/2456-64-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/2592-84-0x00000000730AD000-0x00000000730B8000-memory.dmp

Filesize
44KB

Download
memory/2592-83-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2592-85-0x0000000005C80000-0x0000000005C81000-memory.dmp

Filesize
4KB

Download
memory/2592-86-0x0000000006C10000-0x0000000006C12000-memory.dmp

Filesize
8KB

Download
memory/2592-87-0x00000000730AD000-0x00000000730B8000-memory.dmp

Filesize
44KB

Download
memory/2592-88-0x0000000005C80000-0x0000000005C81000-memory.dmp

Filesize
4KB

Download
memory/2592-94-0x00000000730AD000-0x00000000730B8000-memory.dmp

Filesize
44KB

Download
memory/2916-52-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2916-55-0x0000000000140000-0x0000000000147000-memory.dmp

Filesize
28KB

Download
memory/2916-59-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download
memory/2916-50-0x0000000000130000-0x0000000000139000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads