431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588

Analysis

max time kernel
174s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2023, 11:09

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General

Target

431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe
Size

277KB
MD5

35aa5a7b86cb01d8fe0a0807bf17d1b2
SHA1

5faecf50a3bc4b3936d5f8ecac183d8373e00021
SHA256

431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588
SHA512

2e719e3006d3abea25f82c62bf662acc06a75012756365f9b50a7ce6dee8396af10a3c4e01d759767f81dc1c21ad806b7081de4dba9b00c0c7e258f5716c126b
SSDEEP

6144:zXzKdNY49u8rVbuw27GvWz8mvP6rX01nets:sa4ApGvWXW01L

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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe

Executes dropped EXE 2 IoCs

pid	Process
4384	ITS SB App Switch.exe
4612	ITS SB App Switch.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4220-132-0x00000000001D0000-0x0000000000270000-memory.dmp	upx
behavioral1/memory/4220-138-0x00000000001D0000-0x0000000000270000-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
4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe
4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe
4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe
4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 4384	4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe	81
PID 4220 wrote to memory of 4384	4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe	81
PID 4220 wrote to memory of 4384	4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe	81
PID 4220 wrote to memory of 4612	4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe	82
PID 4220 wrote to memory of 4612	4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe	82
PID 4220 wrote to memory of 4612	4220	431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe	82

C:\Users\Admin\AppData\Local\Temp\431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe
"C:\Users\Admin\AppData\Local\Temp\431df5c4665d6b5ba233db8ecb7f9f49f09dc7fbbaa6c56ca69977144d2ae588.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4220
- 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:4384
- 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:4612

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/4220-132-0x00000000001D0000-0x0000000000270000-memory.dmp

Filesize
640KB

Download
memory/4220-138-0x00000000001D0000-0x0000000000270000-memory.dmp

Filesize
640KB

Download