8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83

Analysis

max time kernel
137s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
14/05/2023, 06:59

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General

Target

8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe
Size

277KB
MD5

f4bf0354faca252dfc61df88062ad1c9
SHA1

c39d9d71d46e151ab01546a0734f6553db82cc09
SHA256

8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83
SHA512

f5e6cf5b87a1492f58a044e094f730b20a36b39d7720dbfc194ae1de83121b3e3de67b4e2ee9bc896a5db80757fb2cfd8823bd44082a8d55b59b8536d00e0471
SSDEEP

6144:9XzKdNY49u8rV0RaypDIAygDDui01netS:ea4AB3MC01p

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4596-133-0x0000000000DD0000-0x0000000000E70000-memory.dmp	upx
behavioral1/memory/4596-147-0x0000000000DD0000-0x0000000000E70000-memory.dmp	upx

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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe

Executes dropped EXE 2 IoCs

pid	Process
2124	ITS SB App Switch.exe
3872	ITS SB App Switch.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe
4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe
4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe
4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4596 wrote to memory of 2124	4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe	85
PID 4596 wrote to memory of 2124	4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe	85
PID 4596 wrote to memory of 2124	4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe	85
PID 4596 wrote to memory of 3872	4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe	86
PID 4596 wrote to memory of 3872	4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe	86
PID 4596 wrote to memory of 3872	4596	8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe	86

C:\Users\Admin\AppData\Local\Temp\8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe
"C:\Users\Admin\AppData\Local\Temp\8a31be4a2f66f285f6f5f4b26deaab1e1aaa432b8d4f1cd94e78239b157a7c83.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4596
- 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:2124
- 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:3872

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/4596-133-0x0000000000DD0000-0x0000000000E70000-memory.dmp

Filesize
640KB

Download
memory/4596-147-0x0000000000DD0000-0x0000000000E70000-memory.dmp

Filesize
640KB

Download