b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4

Analysis

max time kernel
91s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2023, 12:17

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General

Target

b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe
Size

277KB
MD5

2b9304914f4fc5beafba1c66d0b22bcc
SHA1

6639ffdf3891a92604676ddf36682945c1920991
SHA256

b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4
SHA512

03236c4c207b93b6cca80df942f596147242736ef14dbffe6739e2fbebc13d71cbce0da15dfa68b0216768262d351308dcc942b16d770fe3e6d12a1f23392b92
SSDEEP

3072:0NXEGZJWhfNFC4S60+XoLczrVmXCjt17c91FLL5r6jQ6yGl1t/f0iH01ne4PKYxe:CXzKdNY49u8rV7rg1GlX/701net1

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-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe

Executes dropped EXE 2 IoCs

pid	Process
3876	ITS SB App Switch.exe
4564	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/4996-133-0x0000000000BE0000-0x0000000000C80000-memory.dmp	upx
behavioral1/memory/4996-147-0x0000000000BE0000-0x0000000000C80000-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
4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe
4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe
4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe
4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 3876	4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe	83
PID 4996 wrote to memory of 3876	4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe	83
PID 4996 wrote to memory of 3876	4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe	83
PID 4996 wrote to memory of 4564	4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe	84
PID 4996 wrote to memory of 4564	4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe	84
PID 4996 wrote to memory of 4564	4996	b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe	84

C:\Users\Admin\AppData\Local\Temp\b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe
"C:\Users\Admin\AppData\Local\Temp\b1b5c35897cfe6f95168054ff29e4c1c14236270a6e60497c3cf5b18987274c4.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4996
- 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:3876
- 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:4564

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/4996-133-0x0000000000BE0000-0x0000000000C80000-memory.dmp

Filesize
640KB

Download
memory/4996-147-0x0000000000BE0000-0x0000000000C80000-memory.dmp

Filesize
640KB

Download