2bb72fab9786239824a6055da9b0b84819621dff0dd94da340a0017a852618de

General

Target

Debt-Details-1857159816-03052021.xls
Size

78KB
MD5

940707d8ae9ac2e601aecf16961f656f
SHA1

b3dd489a819db2f626cde1602f12d898093965a9
SHA256

2bb72fab9786239824a6055da9b0b84819621dff0dd94da340a0017a852618de
SHA512

d422774195b7392c9428094c365f870f1bc767cbc6e92c8b3e963a1004bb5f25f6c4d1a0334106685a644a3c8cae2e568bd988d5391dc6aa71622ac4ec0d5156

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	2724	3576	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3136	3576	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4004	3576	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3976	3576	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3636	3576	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3576 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE
3576	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3576 wrote to memory of 2724	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 2724	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 3136	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 3136	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 4004	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 4004	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 3976	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 3976	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 3636	3576	EXCEL.EXE	rundll32.exe
PID 3576 wrote to memory of 3636	3576	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-1857159816-03052021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3576

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2724

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3136

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4004

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3976

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3636

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/2724-7-0x0000000000000000-mapping.dmp

Download
memory/3136-8-0x0000000000000000-mapping.dmp

Download
memory/3576-2-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/3576-3-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/3576-4-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/3576-5-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/3576-6-0x00007FF98B040000-0x00007FF98B677000-memory.dmp

Filesize
6.2MB

Download
memory/3636-11-0x0000000000000000-mapping.dmp

Download
memory/3976-10-0x0000000000000000-mapping.dmp

Download
memory/4004-9-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads