621cfcf91513bcb031c7233c963276ffc41c65c63d28a278c2f23c3ce555c724

General

Target

Debt-Details-882555669-03052021.xls
Size

78KB
MD5

8c0c2124df5a468660e1e3f46c02e799
SHA1

69a023154d3e5c320936c8b52274b8e68f2a447d
SHA256

352a9b33582af4ab295bd7f5077761219b8cffc4d1a831d518d5b5a365c88629
SHA512

9e8141ffab10d13a6c11636716fd7c81e37d9c5abacad3966f275f534593a0987af3e68af28c840a85b98f276c7a9425b263605853b11541a9fee9863e83ec4f

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	3420	1176	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3700	1176	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2060	1176	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1296	1176	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1120	1176	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

1176 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1176 EXCEL.EXE
1176 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1176 wrote to memory of 3420	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 3420	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 3700	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 3700	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 2060	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 2060	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 1296	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 1296	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 1120	1176	EXCEL.EXE	rundll32.exe
PID 1176 wrote to memory of 1120	1176	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-882555669-03052021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1176

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3420

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3700

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2060

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:1120

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

Replay Monitor

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Downloads

memory/1120-11-0x0000000000000000-mapping.dmp

Download
memory/1176-2-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

Download
memory/1176-3-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

Download
memory/1176-4-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

Download
memory/1176-5-0x00007FFE21460000-0x00007FFE21A97000-memory.dmp

Filesize
6.2MB

Download
memory/1176-6-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

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

Download
memory/2060-9-0x0000000000000000-mapping.dmp

Download
memory/3420-7-0x0000000000000000-mapping.dmp

Download
memory/3700-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads