2dba3900155f3c89031fbce6b06fd8bf85f066a3e12b8f4a0b6142f5150befa4

General

Target

Debt-Details-1388003497-03052021.xls
Size

78KB
MD5

12a5851cea8f81ec1b5deebc5ccfc6c2
SHA1

148282ad98eb4aae63030f7b85581ed8d9cdf99e
SHA256

2dba3900155f3c89031fbce6b06fd8bf85f066a3e12b8f4a0b6142f5150befa4
SHA512

60d2f8867669919aa68195e2c3d36ffa1ae06c3435ebd50059f64757ab1544b4a8fb356ff66bd7fd13fa5bc70bce02d675307a3ca319bcd7661fb3763f171e77

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	2088	4756	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	580	4756	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	668	4756	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	876	4756	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	380	4756	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

4756 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4756 EXCEL.EXE
4756 EXCEL.EXE

Suspicious use of SetWindowsHookEx 15 IoCs

Processes:

EXCEL.EXE

pid	process
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4756 wrote to memory of 2088	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 2088	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 580	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 580	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 668	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 668	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 876	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 876	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 380	4756	EXCEL.EXE	rundll32.exe
PID 4756 wrote to memory of 380	4756	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-1388003497-03052021.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:4756

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2088

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:580

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:668

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:876

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:380

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/380-12-0x0000000000000000-mapping.dmp

Download
memory/580-9-0x0000000000000000-mapping.dmp

Download
memory/668-10-0x0000000000000000-mapping.dmp

Download
memory/876-11-0x0000000000000000-mapping.dmp

Download
memory/2088-8-0x0000000000000000-mapping.dmp

Download
memory/4756-2-0x00007FFACA170000-0x00007FFACA180000-memory.dmp

Filesize
64KB

Download
memory/4756-3-0x00007FFACA170000-0x00007FFACA180000-memory.dmp

Filesize
64KB

Download
memory/4756-4-0x00007FFACA170000-0x00007FFACA180000-memory.dmp

Filesize
64KB

Download
memory/4756-5-0x00007FFAEE190000-0x00007FFAEE7C7000-memory.dmp

Filesize
6.2MB

Download
memory/4756-6-0x00007FFACA170000-0x00007FFACA180000-memory.dmp

Filesize
64KB

Download
memory/4756-7-0x00007FFAC6660000-0x00007FFAC6670000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads