agenttesla | d947562965017e1860a57b9b4e1e3c2b643a56f595fd19455d5d843ba9c9b5c8

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-05-2024 08:28

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General

Target

PO# CB20240022.xlam
Size

722KB
MD5

73d518dafcd0cc2145ebef8c0e2e0bd1
SHA1

1a6b516a6de51bc549d0ab21b5b2764e9b2ac970
SHA256

d947562965017e1860a57b9b4e1e3c2b643a56f595fd19455d5d843ba9c9b5c8
SHA512

f74985283cd09c5013f5cadf0467719c84bfeb49fc78768d0b9206fb950bb3ca3c7019811bf1196553e167d6e9d7c57fd39e696d34a64151c4cd1fd3604d453e
SSDEEP

12288:k6nW2pMcFlXF1lNrx+gzxLbDqBDMGokuug9zTKmis0wQ2Vcu4jK4XwZ9AaTDq4lu:JrNFpAglLbeBoGhCKmkw3vfcKD/Mv

Score

10^/10

agenttesla zgrat keylogger rat spyware stealer trojan

Malware Config

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Detect ZGRat V1 33 IoCs

resource	yara_rule
behavioral1/memory/2456-20-0x00000000002E0000-0x0000000000334000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-21-0x0000000002040000-0x0000000002092000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-22-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-23-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-25-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-27-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-47-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-75-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-81-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-79-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-77-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-73-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-71-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-69-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-67-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-65-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-63-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-61-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-59-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-57-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-55-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-53-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-51-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-49-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-45-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-43-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-41-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-39-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-37-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-35-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-33-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-31-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1
behavioral1/memory/2456-29-0x0000000002040000-0x000000000208D000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	2684	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2628	OBC.exe

Loads dropped DLL 1 IoCs

pid	Process
2684	EQNEDT32.EXE

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
6	api.ipify.org

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0007000000015d07-3.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 2456	2628	OBC.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2684	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	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\shell\edit	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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 MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key deleted	\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 HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	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
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE

Modifies registry class 64 IoCs

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	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
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\.mht\OpenWithList\Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32\ = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohevi.dll"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" /p %1"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\ = "&Edit"	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\htmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	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\mhtmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2328	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2456	RegSvcs.exe
2456	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2628	OBC.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2456	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2628	OBC.exe
2628	OBC.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2628	OBC.exe
2628	OBC.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2628	2684	EQNEDT32.EXE	29
PID 2684 wrote to memory of 2628	2684	EQNEDT32.EXE	29
PID 2684 wrote to memory of 2628	2684	EQNEDT32.EXE	29
PID 2684 wrote to memory of 2628	2684	EQNEDT32.EXE	29
PID 2628 wrote to memory of 2456	2628	OBC.exe	31
PID 2628 wrote to memory of 2456	2628	OBC.exe	31
PID 2628 wrote to memory of 2456	2628	OBC.exe	31
PID 2628 wrote to memory of 2456	2628	OBC.exe	31
PID 2628 wrote to memory of 2456	2628	OBC.exe	31
PID 2628 wrote to memory of 2456	2628	OBC.exe	31
PID 2628 wrote to memory of 2456	2628	OBC.exe	31
PID 2628 wrote to memory of 2456	2628	OBC.exe	31

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\PO# CB20240022.xlam"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2328

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Roaming\OBC.exe
  "C:\Users\Admin\AppData\Roaming\OBC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Roaming\OBC.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Roaming\OBC.exe

Filesize
1.1MB

MD5
01311bbcca3794100bc4ef5a6f7f471e

SHA1
01372089b8656907ec48e97eb911d05c41b9c651

SHA256
437ead7b2bb32872480a15c9e391792b939d6feb944f45a756f3dc84d9168831

SHA512
5fcc0ea9c247f591c6d2fcf37d5feb2e237856fe00cce1091eaf6f7254778b31e23507c2eed436c2a437d0033712096777097e6fa7960c14e18af0eee2504d21

Download Submit
memory/2328-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2328-1-0x000000007231D000-0x0000000072328000-memory.dmp

Filesize
44KB

Download
memory/2328-1055-0x000000007231D000-0x0000000072328000-memory.dmp

Filesize
44KB

Download
memory/2328-1052-0x000000007231D000-0x0000000072328000-memory.dmp

Filesize
44KB

Download
memory/2456-65-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-61-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-22-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-23-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-25-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-27-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-47-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-75-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-81-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-79-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-77-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-73-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-71-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-69-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-67-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-20-0x00000000002E0000-0x0000000000334000-memory.dmp

Filesize
336KB

Download
memory/2456-63-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-21-0x0000000002040000-0x0000000002092000-memory.dmp

Filesize
328KB

Download
memory/2456-59-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-57-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-55-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-53-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-51-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-49-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-45-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-43-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-41-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-39-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-37-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-35-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-33-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-31-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-29-0x0000000002040000-0x000000000208D000-memory.dmp

Filesize
308KB

Download
memory/2456-18-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2456-19-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download