539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b

Analysis

max time kernel
106s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
14/04/2023, 00:01

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General

Target

539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe
Size

277KB
MD5

b06c4252256385911ce1d836ddd04890
SHA1

0cb7b8a065dcaa7842dfe8c783c7a409c8525afe
SHA256

539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b
SHA512

d84fafa748eee147359aaf27b8f0a3962ea0995d14183cda8b811ae8938805d39761a47ecdb5e9a94fc387d00b8afd455e10f7549f2c53e8abd173683dbfa404
SSDEEP

6144:zXzKdNY49u8rVE9V376TMlr5xuRrUG601net2:sa4AljdlNxu601B

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-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe

Executes dropped EXE 2 IoCs

pid	Process
4488	ITS SB App Switch.exe
3788	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/3688-133-0x00000000001B0000-0x0000000000250000-memory.dmp	upx
behavioral1/memory/3688-143-0x00000000001B0000-0x0000000000250000-memory.dmp	upx
behavioral1/memory/3688-144-0x00000000001B0000-0x0000000000250000-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
3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe
3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe
3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe
3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3688 wrote to memory of 4488	3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe	83
PID 3688 wrote to memory of 4488	3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe	83
PID 3688 wrote to memory of 4488	3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe	83
PID 3688 wrote to memory of 3788	3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe	84
PID 3688 wrote to memory of 3788	3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe	84
PID 3688 wrote to memory of 3788	3688	539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe	84

C:\Users\Admin\AppData\Local\Temp\539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe
"C:\Users\Admin\AppData\Local\Temp\539e8602a37b83dbfd7ed3224768769f4f88bee4046729519f2b68349c697b6b.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3688
- 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:4488
- 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:3788

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
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/3688-133-0x00000000001B0000-0x0000000000250000-memory.dmp

Filesize
640KB

Download
memory/3688-143-0x00000000001B0000-0x0000000000250000-memory.dmp

Filesize
640KB

Download
memory/3688-144-0x00000000001B0000-0x0000000000250000-memory.dmp

Filesize
640KB

Download