b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1

Analysis

max time kernel
153s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2023 04:44

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General

Target

b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe
Size

277KB
MD5

31c945d5df847b752b3f971d7ba3ad65
SHA1

9986786fd0b564af9156321e7b29fc8712145cc6
SHA256

b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1
SHA512

7c465e4c9a852b629ce0a3caf586c2aaea0b3f1a9051070611e5d022b617eebaa0829b314b26ef3ae35d5db946ffd87bb923f74394a727747b01042300373f44
SSDEEP

6144:YXzKdNY49u8rV+6btCN7FhV7k1QXzF5OZn01netE:Ha4A/6bsN5/7lXiZn01z

Score

7^/10

upx

Malware Config

Signatures

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe

Executes dropped EXE 2 IoCs

pid	Process
2012	ITS SB App Switch.exe
1900	ITS SB App Switch.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/4444-132-0x0000000000590000-0x0000000000630000-memory.dmp	upx
behavioral1/memory/4444-138-0x0000000000590000-0x0000000000630000-memory.dmp	upx
behavioral1/memory/4444-139-0x0000000000590000-0x0000000000630000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe
4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe
4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe
4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 2012	4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe	79
PID 4444 wrote to memory of 2012	4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe	79
PID 4444 wrote to memory of 2012	4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe	79
PID 4444 wrote to memory of 1900	4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe	80
PID 4444 wrote to memory of 1900	4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe	80
PID 4444 wrote to memory of 1900	4444	b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe	80

C:\Users\Admin\AppData\Local\Temp\b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe
"C:\Users\Admin\AppData\Local\Temp\b885f40f4f21b993149fc3221ee1038990b188abc3c9b14e5b0f90d43a3066c1.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4444
- C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
  "C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"
  2⤵
  - Executes dropped EXE
  PID:2012
- C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
  "C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"
  2⤵
  - Executes dropped EXE
  PID:1900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

Filesize
87KB

MD5
368332fca74f48697d842c5f4698ae1d

SHA1
0275153a1e62bd0eca0b02168895517ed66aac56

SHA256
3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59

SHA512
fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

Filesize
87KB

MD5
368332fca74f48697d842c5f4698ae1d

SHA1
0275153a1e62bd0eca0b02168895517ed66aac56

SHA256
3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59

SHA512
fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

Filesize
87KB

MD5
368332fca74f48697d842c5f4698ae1d

SHA1
0275153a1e62bd0eca0b02168895517ed66aac56

SHA256
3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59

SHA512
fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

Download Submit
memory/4444-132-0x0000000000590000-0x0000000000630000-memory.dmp

Filesize
640KB

Download
memory/4444-138-0x0000000000590000-0x0000000000630000-memory.dmp

Filesize
640KB

Download
memory/4444-139-0x0000000000590000-0x0000000000630000-memory.dmp

Filesize
640KB

Download