c42a995d2eabe03b68ad326dd75d49aa53188821eea726ff30bb5bcd320ba9c0

General

Target

Debt-Details-1940160084-03052021.xls
Size

78KB
MD5

f441bd6beb86ba6d4b36f8fac75a4436
SHA1

5059340fc6fb2a5b27d05e42671b6251910aaaeb
SHA256

c42a995d2eabe03b68ad326dd75d49aa53188821eea726ff30bb5bcd320ba9c0
SHA512

e39318dbf67f37e378ad469dcad57edd034e65e9b97fc21782933d24c451b36e65ef8417b06415f304dcd656e7cc598b0009186d4941ceaea5b64bfc7bfe555b

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	3684	8	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3212	8	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2128	8	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2376	8	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2200	8	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

8 EXCEL.EXE
Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid process

8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE
8 EXCEL.EXE

pid	process
8	EXCEL.EXE

pid	process
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE
8	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 8 wrote to memory of 3684	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 3684	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 3212	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 3212	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 2128	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 2128	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 2376	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 2376	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 2200	8	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 2200	8	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-1940160084-03052021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:8

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3684

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3212

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2128

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2376

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2200

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/8-2-0x00007FFF08940000-0x00007FFF08950000-memory.dmp

Filesize
64KB

Download
memory/8-3-0x00007FFF08940000-0x00007FFF08950000-memory.dmp

Filesize
64KB

Download
memory/8-4-0x00007FFF08940000-0x00007FFF08950000-memory.dmp

Filesize
64KB

Download
memory/8-5-0x00007FFF2C550000-0x00007FFF2CB87000-memory.dmp

Filesize
6.2MB

Download
memory/8-6-0x00007FFF08940000-0x00007FFF08950000-memory.dmp

Filesize
64KB

Download
memory/2128-9-0x0000000000000000-mapping.dmp

Download
memory/2200-11-0x0000000000000000-mapping.dmp

Download
memory/2376-10-0x0000000000000000-mapping.dmp

Download
memory/3212-8-0x0000000000000000-mapping.dmp

Download
memory/3684-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads