b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f

Analysis

max time kernel
132s
max time network
159s
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 08:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe
Size

277KB
MD5

6b16f0508ecf1e44ee16fc9413c99450
SHA1

90bcb5f69a91a8a20abc89b705223d16976e485d
SHA256

b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f
SHA512

92ff70560db511fe3670d6e1746006ad2096c3db31cc94c98e4c18f85625e6b73a08c17214063a9832e0bd25f3f1f66ec831ca430170d8eb01de602bf18f43b0
SSDEEP

6144:NXzKdNY49u8rV5TnXriGtJjcWq+01netA:ua4AuTnXri6JW+01z

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe

Executes dropped EXE 2 IoCs

pid	Process
4864	ITS SB App Switch.exe
4700	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/2236-132-0x0000000000800000-0x00000000008A0000-memory.dmp	upx
behavioral1/memory/2236-137-0x0000000000800000-0x00000000008A0000-memory.dmp	upx
behavioral1/memory/2236-138-0x0000000000800000-0x00000000008A0000-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
2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe
2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe
2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe
2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 4864	2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe	81
PID 2236 wrote to memory of 4864	2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe	81
PID 2236 wrote to memory of 4864	2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe	81
PID 2236 wrote to memory of 4700	2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe	82
PID 2236 wrote to memory of 4700	2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe	82
PID 2236 wrote to memory of 4700	2236	b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe	82

C:\Users\Admin\AppData\Local\Temp\b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe
"C:\Users\Admin\AppData\Local\Temp\b4b19028b958b1c9e47631a2fca677127d699b517d5837c7ca35d70f3898119f.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2236
- 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:4864
- 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:4700

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

Loading Replay Monitor...

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/2236-132-0x0000000000800000-0x00000000008A0000-memory.dmp

Filesize
640KB

Download
memory/2236-137-0x0000000000800000-0x00000000008A0000-memory.dmp

Filesize
640KB

Download
memory/2236-138-0x0000000000800000-0x00000000008A0000-memory.dmp

Filesize
640KB

Download
memory/4700-135-0x0000000000000000-mapping.dmp

Download
memory/4864-133-0x0000000000000000-mapping.dmp

Download