94dbf95c02cfc42c570b35aa665f67916254a371bf6f41c6653254dab54112e1

General

Target

Debt-Details-2080450077-03052021.xls
Size

78KB
MD5

bfca95292db7cd6268acda9b80721c36
SHA1

1b4ed8603a2b350b1e1198869e111ed6a745220a
SHA256

6efaa0712e8f7a9bb411df2045ba89f42e35c43cceb608bf56bd5ee14125d036
SHA512

ad1ca784da33d733a17a9feb8e82c32c41efc31444ed55000fa71d268d0b4136c60f603c43c0c47e2f9cb0256309dcb94c24b37699b118f7e198f22eb436b6c1

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	1128	988	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2120	988	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3044	988	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3952	988	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1080	988	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

988 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 988 wrote to memory of 1128	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 1128	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 2120	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 2120	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 3044	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 3044	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 3952	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 3952	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 1080	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 1080	988	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-2080450077-03052021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1128

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2120

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3044

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3952

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1080

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/988-2-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download
memory/988-3-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download
memory/988-4-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download
memory/988-5-0x00007FFA142E0000-0x00007FFA14917000-memory.dmp

Filesize
6.2MB

Download
memory/988-6-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download
memory/1080-11-0x0000000000000000-mapping.dmp

Download
memory/1128-7-0x0000000000000000-mapping.dmp

Download
memory/2120-8-0x0000000000000000-mapping.dmp

Download
memory/3044-9-0x0000000000000000-mapping.dmp

Download
memory/3952-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads