804826c7da65f0ef6aba984fc65cd2e701f4d26ef52fedd3dcea5808c4c70542

Analysis

max time kernel
101s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
15/01/2023, 14:33

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General

Target
0b58bcd32bc93b428e389f8976665749.exe
Size 5.7MB
Sample230115-rwvxjsfh97
SHA256 804826c7da65f0ef6aba984fc65cd2e701f4d26ef52fedd3dcea5808c4c70542
MD5 0b58bcd32bc93b428e389f8976665749
SHA1 8e7d64a9d31d71ca9048cb1a52893ab763869153
SHA512 fb8aadc29d76a0b03b417560b885c90767752dc7d8c3fc289bc76f14d54240c90d0779ee2ca1846cf69750085896cfa6711e4bcc5bdacab024df7b4a59255a2f
SSDEEP 98304:I0LLudgk03bPi/IIZKySE89KUXPf8L5gaXjelb4e+LfvfyW8A/:I0cg53b6/ImKRHnoKHl/2d
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2548	WindowsPaint-Ver2.1.5.3.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	0b58bcd32bc93b428e389f8976665749.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4876	icacls.exe
4968	icacls.exe
4932	icacls.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1392	schtasks.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3368 wrote to memory of 1392	3368	0b58bcd32bc93b428e389f8976665749.exe	82
PID 3368 wrote to memory of 1392	3368	0b58bcd32bc93b428e389f8976665749.exe	82
PID 3368 wrote to memory of 4876	3368	0b58bcd32bc93b428e389f8976665749.exe	84
PID 3368 wrote to memory of 4876	3368	0b58bcd32bc93b428e389f8976665749.exe	84
PID 3368 wrote to memory of 4968	3368	0b58bcd32bc93b428e389f8976665749.exe	86
PID 3368 wrote to memory of 4968	3368	0b58bcd32bc93b428e389f8976665749.exe	86
PID 3368 wrote to memory of 4932	3368	0b58bcd32bc93b428e389f8976665749.exe	88
PID 3368 wrote to memory of 4932	3368	0b58bcd32bc93b428e389f8976665749.exe	88

C:\Users\Admin\AppData\Local\Temp\0b58bcd32bc93b428e389f8976665749.exe
"C:\Users\Admin\AppData\Local\Temp\0b58bcd32bc93b428e389f8976665749.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3368
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /CREATE /TN "Windows\IntelComputingTooIklt\IntelPaint2.1.5.3." /TR "C:\ProgramData\MsiBoostSasum\WindowsPaint-Ver2.1.5.3.exe" /SC MINUTE
  2⤵
  - Creates scheduled task(s)
  PID:1392
- C:\Windows\System32\icacls.exe
  "C:\Windows\System32\icacls.exe" "C:\ProgramData\MsiBoostSasum" /inheritance:e /deny "*S-1-1-0:(R,REA,RA,RD)"
  2⤵
  - Modifies file permissions
  PID:4876
- C:\Windows\System32\icacls.exe
  "C:\Windows\System32\icacls.exe" "C:\ProgramData\MsiBoostSasum" /inheritance:e /deny "*S-1-5-7:(R,REA,RA,RD)"
  2⤵
  - Modifies file permissions
  PID:4968
- C:\Windows\System32\icacls.exe
  "C:\Windows\System32\icacls.exe" "C:\ProgramData\MsiBoostSasum" /inheritance:e /deny "admin:(R,REA,RA,RD)"
  2⤵
  - Modifies file permissions
  PID:4932

C:\ProgramData\MsiBoostSasum\WindowsPaint-Ver2.1.5.3.exe
C:\ProgramData\MsiBoostSasum\WindowsPaint-Ver2.1.5.3.exe
1⤵
- Executes dropped EXE
PID:2548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

WindowsPaint-Ver2.1.5.3.exe

Path C:\ProgramData\MsiBoostSasum\WindowsPaint-Ver2.1.5.3.exe
Size 568.8MB
SHA256 ff7398da090885fd0e0e8c59bb2339c354a0dc2ca715aba86aa9d9a04e5bfa9f
MD5 02281127a2516e07ae1e5916e2b2a415
SHA1 4e8a23ecdc6215134be708996e3b35e0facea11c
SHA512 372c04345ecbe405dad3626b2f91cfb1be438b39a869c1a4740de22bc29a42deb1cb7eee998269fe0f5ea4c08d5b2e947908c716dad5451ed025e612e115333a
SSDEEP 98304:I0LLudgk03bPi/IIZKySE89KUXPf8L5gaXjelb4e+LfvfyW8A/O:I0cg53b6/ImKRHnoKHl/2dm
MD5 SHA1 SHA512 SSDEEP

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WindowsPaint-Ver2.1.5.3.exe

Path C:\ProgramData\MsiBoostSasum\WindowsPaint-Ver2.1.5.3.exe
Size 568.8MB
SHA256 ff7398da090885fd0e0e8c59bb2339c354a0dc2ca715aba86aa9d9a04e5bfa9f
MD5 02281127a2516e07ae1e5916e2b2a415
SHA1 4e8a23ecdc6215134be708996e3b35e0facea11c
SHA512 372c04345ecbe405dad3626b2f91cfb1be438b39a869c1a4740de22bc29a42deb1cb7eee998269fe0f5ea4c08d5b2e947908c716dad5451ed025e612e115333a
SSDEEP 98304:I0LLudgk03bPi/IIZKySE89KUXPf8L5gaXjelb4e+LfvfyW8A/O:I0cg53b6/ImKRHnoKHl/2dm
MD5 SHA1 SHA512 SSDEEP

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memory/2548-141-0x00007FF6D70F0000-0x00007FF6D79F3000-memory.dmp

Download

memory/3368-132-0x00007FF7F0CD0000-0x00007FF7F15D3000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads