1463c17a7f06236bf5e8cf4ce7964cc17b2eabaedf00822387824b45f83021b5

General

Target
SecuriteInfo.com.Trojan.Skarlet.3.Gen.5350.5251.xlsm
Size 83KB
Sample220113-d78qwsffak
SHA256 1463c17a7f06236bf5e8cf4ce7964cc17b2eabaedf00822387824b45f83021b5
MD5 3e67f54250d41c46bf94d030cab3c916
SHA1 e140c476424fc3a291e3d9f55f22aa217893b936
SHA512 4f4bc618d4e4b0afaf396671f9cedf7b7a2337fca8625d72d87c2393df1f56e33a78f8186629c6f60e648b7775ea4378c068387a8415c69f1840cd7f442aa153
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
https://digitalcardsbychivami.xyz/includes/KrPj/

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1824	3932	rundll32.exe	68

Loads dropped DLL 2 IoCs

pid	Process
1824	rundll32.exe
2636	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Bbinwslhfmesuq\sgactjtwhm.eag	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3932	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE
3932	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 1824	3932	EXCEL.EXE	72
PID 3932 wrote to memory of 1824	3932	EXCEL.EXE	72
PID 3932 wrote to memory of 1824	3932	EXCEL.EXE	72
PID 1824 wrote to memory of 2636	1824	rundll32.exe	75
PID 1824 wrote to memory of 2636	1824	rundll32.exe	75
PID 1824 wrote to memory of 2636	1824	rundll32.exe	75
PID 2636 wrote to memory of 2688	2636	rundll32.exe	76
PID 2636 wrote to memory of 2688	2636	rundll32.exe	76
PID 2636 wrote to memory of 2688	2636	rundll32.exe	76

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Skarlet.3.Gen.5350.5251.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\dwa.ocx,D"&"l"&"lR"&"egister"&"Server
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1824
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\dwa.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:2636
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bbinwslhfmesuq\sgactjtwhm.eag",OhWcfPtBTPBGDp
      4⤵
      PID:2688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1824-273-0x0000000002A10000-0x0000000002A39000-memory.dmp

Download

memory/2636-274-0x0000000002600000-0x000000000274A000-memory.dmp

Download

memory/3932-122-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Download

memory/3932-123-0x00000194CFB40000-0x00000194CFB42000-memory.dmp

Download

memory/3932-124-0x00000194CFB40000-0x00000194CFB42000-memory.dmp

Download

memory/3932-125-0x00000194CFB40000-0x00000194CFB42000-memory.dmp

Download

memory/3932-118-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Download

memory/3932-121-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Download

memory/3932-120-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Download

memory/3932-119-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads