4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2

Analysis

max time kernel
135s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2023, 12:04

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General

Target

4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe
Size

277KB
MD5

2090c6c2049105add6fb4d5de2b23ddb
SHA1

689a59ab10be8f87917bcf1bb3dbd9bdeb63cdbe
SHA256

4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2
SHA512

061529087e15a7c4f24939ba9347946feb248f08971f6a980f9899e4e8d88d8a37327c5ddc9a21cb9284258509873f23a7c1113e8438ef16bf1c4dea45255f13
SSDEEP

6144:iXzKdNY49u8rV+V37DKumczSlUHURodlH01netn:xa4AFDXmczSLo/H01U

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/4100-133-0x0000000000350000-0x00000000003F0000-memory.dmp	upx
behavioral1/memory/4100-147-0x0000000000350000-0x00000000003F0000-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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe

Executes dropped EXE 2 IoCs

pid	Process
860	ITS SB App Switch.exe
2940	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
4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe
4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe
4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe
4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4100 wrote to memory of 860	4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe	84
PID 4100 wrote to memory of 860	4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe	84
PID 4100 wrote to memory of 860	4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe	84
PID 4100 wrote to memory of 2940	4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe	85
PID 4100 wrote to memory of 2940	4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe	85
PID 4100 wrote to memory of 2940	4100	4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe	85

C:\Users\Admin\AppData\Local\Temp\4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe
"C:\Users\Admin\AppData\Local\Temp\4a4b738e9e96b6ac38495366c1ffdb208d93b55fcc282d4c5017ffa0881b6cf2.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4100
- 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:860
- 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:2940

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/4100-133-0x0000000000350000-0x00000000003F0000-memory.dmp

Filesize
640KB

Download
memory/4100-147-0x0000000000350000-0x00000000003F0000-memory.dmp

Filesize
640KB

Download