71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57

Analysis

max time kernel
61s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2023 09:27

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General

Target

71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe
Size

277KB
MD5

a5f61f4078d881e57a88fa93bdaf3aed
SHA1

3a5b7771f7cda3b0e09f62968d4b6144a3f27e02
SHA256

71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57
SHA512

c7e36be1cd3aca8d8f6c88aedc49e111bb30255bafd7e272266d061a95c44188ca1b6fc6da2c4f55f46eaf491cc7f617084efdc3d5352a09a2b90729e96c8724
SSDEEP

6144:RXzKdNY49u8rVDJxaHWghE2SxvfdqbCe1KZIG01net5:Ka4AiCHzh3SxvAbCqG01G

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

Processes:

71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe

Executes dropped EXE 2 IoCs

Processes:

ITS SB App Switch.exeITS SB App Switch.exe

pid process

2232 ITS SB App Switch.exe
4232 ITS SB App Switch.exe

pid	process
2232	ITS SB App Switch.exe
4232	ITS SB App Switch.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/540-136-0x00000000009C0000-0x0000000000A60000-memory.dmp	upx
behavioral1/memory/540-150-0x00000000009C0000-0x0000000000A60000-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

Processes:

71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe

pid	process
540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe
540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe
540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe
540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe

description	pid	process	target process
PID 540 wrote to memory of 2232	540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe	ITS SB App Switch.exe
PID 540 wrote to memory of 2232	540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe	ITS SB App Switch.exe
PID 540 wrote to memory of 2232	540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe	ITS SB App Switch.exe
PID 540 wrote to memory of 4232	540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe	ITS SB App Switch.exe
PID 540 wrote to memory of 4232	540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe	ITS SB App Switch.exe
PID 540 wrote to memory of 4232	540	71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe	ITS SB App Switch.exe

C:\Users\Admin\AppData\Local\Temp\71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe
"C:\Users\Admin\AppData\Local\Temp\71f4ba7688d58c8b39484c33560c8564bcec493366b9bfa17cd3628baf165f57.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:540

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:2232

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:4232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

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/540-136-0x00000000009C0000-0x0000000000A60000-memory.dmp

Filesize
640KB

Download
memory/540-150-0x00000000009C0000-0x0000000000A60000-memory.dmp

Filesize
640KB

Download