2f74c0fb5630e45d752bd98482b87602295c40c9286eaef0ffdf2467435c4c86

General

Target

Debt-Details-1670392816-03052021.xls
Size

78KB
MD5

910337ef06549d324e9f9a226177c28b
SHA1

d9861f0977f7d84ac275a905e6235a28cee0fea3
SHA256

68361e608e5ed794afd3f803b3a6a87f00b0827fbf26bea80c6fc084075591af
SHA512

3c8ae7e45111bef6a4741e664f7389780e916590dd4be8fbec1ea962961b22cfe71c73d34b4700763755b0ce4d3848258b531162e0f318bf60fab17a01a75d78

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 5 IoCs

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

Processes:

rundll32.exerundll32.exerundll32.exerundll32.exerundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1516	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3644	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	748	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1296	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3760	1152	rundll32.exe	EXCEL.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies registry class 43 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0 = 78003100000000005c5120911100557365727300640009000400efbe724a0b5d5c5120912e000000320500000000010000000000000000003a00000000007288330055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0 = 56003100000000005c51209112004170704461746100400009000400efbe5c5120915c5120912e0000002853010000000100000000000000000000000000000037c20f004100700070004400610074006100000016000000	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 0100000000000000ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0\0\MRUListEx = ffffffff	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 = 19002f433a5c000000000000000000000000000000000000000000	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0\0 = 4e003100000000006b524978100054656d7000003a0009000400efbe5c5120916b5249782e0000003c53010000000100000000000000000000000000000052dcb600540065006d007000000014000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\MRUListEx = 00000000ffffffff	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0\0	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0 = 50003100000000005c51d79310004c6f63616c003c0009000400efbe5c5120915c51d7932e0000003b5301000000010000000000000000000000000000005861f3004c006f00630061006c00000014000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\SniffedFolderType = "Generic"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1"	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0 = 50003100000000005c518f9d100041646d696e003c0009000400efbe5c5120915c518f9d2e0000001d53010000000100000000000000000000000000000018e95a00410064006d0069006e00000014000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0\0\NodeSlot = "2"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
1152 EXCEL.EXE

Suspicious use of SetWindowsHookEx 25 IoCs

Processes:

EXCEL.EXE

pid	process
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1152 wrote to memory of 1516	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1516	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 3644	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 3644	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 748	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 748	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1296	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1296	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 3760	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 3760	1152	EXCEL.EXE	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Debt-Details-1670392816-03052021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\Vijaser.lasjr,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1516
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\Vijaser.lasjr1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:3644
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\Vijaser.lasjr2,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:748
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\Vijaser.lasjr3,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1296
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\Vijaser.lasjr4,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:3760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/748-9-0x0000000000000000-mapping.dmp

Download
memory/1152-2-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-3-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-4-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-5-0x00007FFB55F10000-0x00007FFB56547000-memory.dmp

Filesize
6.2MB

Download
memory/1152-6-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1296-10-0x0000000000000000-mapping.dmp

Download
memory/1516-7-0x0000000000000000-mapping.dmp

Download
memory/3644-8-0x0000000000000000-mapping.dmp

Download
memory/3760-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads