b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91

Analysis

max time kernel
137s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
07-06-2023 08:56

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General

Target

b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe
Size

277KB
MD5

a78c67b48d42b66935bb44ab42b83bda
SHA1

61319c8ad4fc7a304b06cb298d2cc91a9316faa3
SHA256

b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91
SHA512

2217e2923719d8e5091be6cdcbe7476256fe41e6133a5051a3c6ecdd3981d17d8c6ed15a4576148e90b7c4ce2c0e77f28f3fc0bee34dc006aae605eaeec72e58
SSDEEP

6144:wXzKdNY49u8rVvHrk9jLHu8DcGw301neti:va4A8rUjzvcGw301t

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/5044-133-0x0000000000F20000-0x0000000000FC0000-memory.dmp	upx
behavioral1/memory/5044-147-0x0000000000F20000-0x0000000000FC0000-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-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe

Executes dropped EXE 2 IoCs

pid	Process
1120	ITS SB App Switch.exe
4360	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
5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe
5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe
5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe
5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 1120	5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe	83
PID 5044 wrote to memory of 1120	5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe	83
PID 5044 wrote to memory of 1120	5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe	83
PID 5044 wrote to memory of 4360	5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe	84
PID 5044 wrote to memory of 4360	5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe	84
PID 5044 wrote to memory of 4360	5044	b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe	84

C:\Users\Admin\AppData\Local\Temp\b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe
"C:\Users\Admin\AppData\Local\Temp\b84ef0f13ea62decbf96992901cb3b5f8dc3f31f5c33b4d8e4c3fa17ba1d8f91.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5044
- 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:1120
- 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:4360

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/5044-133-0x0000000000F20000-0x0000000000FC0000-memory.dmp

Filesize
640KB

Download
memory/5044-147-0x0000000000F20000-0x0000000000FC0000-memory.dmp

Filesize
640KB

Download