fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f

Analysis

max time kernel
80s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
19-03-2023 01:52

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General

Target

fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe
Size

277KB
MD5

3c5ec73305fb8597f5bfdda51236fdcc
SHA1

cd3db268b9e4cede7dd492d6b35c48048dd5aee3
SHA256

fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f
SHA512

9b73685f8a27e962e8df4a4ce7be27d5c4381688b6eb9e9639e989a366d494e5a4cfb3aa49d7c4c99f3b73b621b0c61f06ec953346e71c509b4cee7170d0cac5
SSDEEP

6144:dXzKdNY49u8rVpJm4RBSXNn2qNa01netqx:+a4AeJm40NK01Tx

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:

fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe

Executes dropped EXE 2 IoCs

Processes:

ITS SB App Switch.exeITS SB App Switch.exe

pid process

3240 ITS SB App Switch.exe
4660 ITS SB App Switch.exe

pid	process
3240	ITS SB App Switch.exe
4660	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/3220-134-0x00000000001F0000-0x0000000000290000-memory.dmp	upx
behavioral1/memory/3220-147-0x00000000001F0000-0x0000000000290000-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:

fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe

pid	process
3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe
3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe
3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe
3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe

description	pid	process	target process
PID 3220 wrote to memory of 3240	3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe	ITS SB App Switch.exe
PID 3220 wrote to memory of 3240	3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe	ITS SB App Switch.exe
PID 3220 wrote to memory of 3240	3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe	ITS SB App Switch.exe
PID 3220 wrote to memory of 4660	3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe	ITS SB App Switch.exe
PID 3220 wrote to memory of 4660	3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe	ITS SB App Switch.exe
PID 3220 wrote to memory of 4660	3220	fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe	ITS SB App Switch.exe

C:\Users\Admin\AppData\Local\Temp\fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe
"C:\Users\Admin\AppData\Local\Temp\fbc172fa798dfb6a0b3805921bbf9ff46cc7cfc7ae3903b6ca84147cdf8fb52f.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3220

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:3240

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:4660

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/3220-134-0x00000000001F0000-0x0000000000290000-memory.dmp

Filesize
640KB

Download
memory/3220-147-0x00000000001F0000-0x0000000000290000-memory.dmp

Filesize
640KB

Download