b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef

Analysis

max time kernel
135s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2023, 18:54

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General

Target

b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe
Size

277KB
MD5

7dc05990872ee31b3cb1b9be15cf46e5
SHA1

d3d782d66a27e7eb8a43abee9b977340e43b8fe3
SHA256

b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef
SHA512

25dcf816dcd53bef5afdbf00dd20c3a1e9cdcb58351c36c352c5606a89885fb96446ef23492ff24edd5c8713871f4372f8003a3fb6908501333acc6fa5865062
SSDEEP

3072:jNXEGZJWhfNFC4S60+XoLczrVmX43htS4QEi9ZP7aPQ8ug0x3xS6HkLNr8H01ne4:JXzKdNY49u8rVq4+qMg0x3jiE01net2

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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe

Executes dropped EXE 2 IoCs

pid	Process
1512	ITS SB App Switch.exe
1704	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/1636-134-0x0000000000EB0000-0x0000000000F50000-memory.dmp	upx
behavioral1/memory/1636-147-0x0000000000EB0000-0x0000000000F50000-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
1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe
1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe
1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe
1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 1512	1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe	84
PID 1636 wrote to memory of 1512	1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe	84
PID 1636 wrote to memory of 1512	1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe	84
PID 1636 wrote to memory of 1704	1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe	85
PID 1636 wrote to memory of 1704	1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe	85
PID 1636 wrote to memory of 1704	1636	b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe	85

C:\Users\Admin\AppData\Local\Temp\b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe
"C:\Users\Admin\AppData\Local\Temp\b4e209fbfedc77e01532d3f42ed04055b78f03fdb1cdbb60338594e63882e8ef.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1636
- 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:1512
- 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:1704

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/1636-134-0x0000000000EB0000-0x0000000000F50000-memory.dmp

Filesize
640KB

Download
memory/1636-147-0x0000000000EB0000-0x0000000000F50000-memory.dmp

Filesize
640KB

Download