4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
21/05/2023, 15:15

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General

Target

4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe
Size

277KB
MD5

dbdcec3bffb2b7a50f9e38d72ae204c7
SHA1

f5a9037da77f4eb011ad0e120403257ea5d4350b
SHA256

4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14
SHA512

402a1c8d1ec5897516b3e0b7ce4448fbb0f06afe0767bdd53e5397256bd82fcb13b685121de4baac62a11f670c227de250f7a0267d972493a1ed8ed00c466b7d
SSDEEP

6144:RXzKdNY49u8rVe1tZKQUFkkQNltmkIa01nett:Ka4ATi/YlXn01S

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3944-133-0x0000000000AB0000-0x0000000000B50000-memory.dmp	upx
behavioral1/memory/3944-147-0x0000000000AB0000-0x0000000000B50000-memory.dmp	upx

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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe

Executes dropped EXE 2 IoCs

pid	Process
1808	ITS SB App Switch.exe
4412	ITS SB App Switch.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe
3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe
3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe
3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 1808	3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe	85
PID 3944 wrote to memory of 1808	3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe	85
PID 3944 wrote to memory of 1808	3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe	85
PID 3944 wrote to memory of 4412	3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe	86
PID 3944 wrote to memory of 4412	3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe	86
PID 3944 wrote to memory of 4412	3944	4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe	86

C:\Users\Admin\AppData\Local\Temp\4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe
"C:\Users\Admin\AppData\Local\Temp\4c99ea85a0f32d79bc1af16882b2df659b784e994b5d92a98e759be4b6f18a14.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3944
- 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:1808
- 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:4412

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/3944-133-0x0000000000AB0000-0x0000000000B50000-memory.dmp

Filesize
640KB

Download
memory/3944-147-0x0000000000AB0000-0x0000000000B50000-memory.dmp

Filesize
640KB

Download