51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa

Analysis

max time kernel
90s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
11-02-2023 15:23

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General

Target

51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe
Size

277KB
MD5

fbf8aa02bc039f035e2ddc2f23dd2979
SHA1

24a9c8c8204f46a5f7959296252f37b1a8ef49e3
SHA256

51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa
SHA512

7f447fcfb61e34eecce5074759d073bcc70980cfc132cf45e4036dc4be80dc760e14dafc0635776e5b9962689c8e8338f44f33a52261c39e7e2db62e0d661aee
SSDEEP

3072:UNXEGZJWhfNFC4S60+XoLczrVmX3DC0tZKhX1pzWGLiw6Zau4NDBzdrmaDbIzb5a:iXzKdNY49u8rVY1tZKgwzz9M01nets

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe

Executes dropped EXE 2 IoCs

pid	Process
2212	ITS SB App Switch.exe
952	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/5040-132-0x0000000000750000-0x00000000007F0000-memory.dmp	upx
behavioral1/memory/5040-137-0x0000000000750000-0x00000000007F0000-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
5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe
5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe
5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe
5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 2212	5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe	81
PID 5040 wrote to memory of 2212	5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe	81
PID 5040 wrote to memory of 2212	5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe	81
PID 5040 wrote to memory of 952	5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe	82
PID 5040 wrote to memory of 952	5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe	82
PID 5040 wrote to memory of 952	5040	51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe	82

C:\Users\Admin\AppData\Local\Temp\51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe
"C:\Users\Admin\AppData\Local\Temp\51b8334a125306bd74c1e9c1f9b5eb6af77ee71c11fe692f83ae5fc1c9c8b3fa.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5040
- 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:2212
- 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:952

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
memory/5040-132-0x0000000000750000-0x00000000007F0000-memory.dmp

Filesize
640KB

Download
memory/5040-137-0x0000000000750000-0x00000000007F0000-memory.dmp

Filesize
640KB

Download