a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c

Analysis

max time kernel
78s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2023, 11:20

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General

Target

a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe
Size

277KB
MD5

a82d98087d402da340c8ca30a249fbcb
SHA1

12638ad9bd47bf741a780426ea09638c34c7c42e
SHA256

a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c
SHA512

52d8a6ab75f55b0ff81fb0e2e0df69da84b3bddcd0a28c69bd5f6eb893d297fbebe143e71977fa181122336289a2e5f71408473681d38c7df108fc27f9a50e18
SSDEEP

3072:7NXEGZJWhfNFC4S60+XoLczrVmX/BAA8kTqs0BVH0XNn2qcyFQUOH01ne4PKZxHN:BXzKdNY49u8rVYeBSXNn2qNqh01netzN

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe

Executes dropped EXE 2 IoCs

pid	Process
4536	ITS SB App Switch.exe
3896	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/3912-132-0x0000000000B60000-0x0000000000C00000-memory.dmp	upx
behavioral1/memory/3912-137-0x0000000000B60000-0x0000000000C00000-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
3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe
3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe
3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe
3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3912 wrote to memory of 4536	3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe	76
PID 3912 wrote to memory of 4536	3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe	76
PID 3912 wrote to memory of 4536	3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe	76
PID 3912 wrote to memory of 3896	3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe	77
PID 3912 wrote to memory of 3896	3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe	77
PID 3912 wrote to memory of 3896	3912	a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe	77

C:\Users\Admin\AppData\Local\Temp\a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe
"C:\Users\Admin\AppData\Local\Temp\a77efe0fd2bed8e7375c97e28e24937a905df21209f305e60b5e0aae6540591c.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3912
- 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:4536
- 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:3896

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
memory/3912-132-0x0000000000B60000-0x0000000000C00000-memory.dmp

Filesize
640KB

Download
memory/3912-137-0x0000000000B60000-0x0000000000C00000-memory.dmp

Filesize
640KB

Download