8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4

Analysis

max time kernel
116s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2024, 12:32

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General

Target

8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe
Size

122KB
MD5

dbfaf50541646c44519359283edd86d0
SHA1

ed39372d20f262c4f585ca8278c32392fdab57c9
SHA256

8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4
SHA512

7a7815d154326ff6967e6025290ba3b0ff0a3bd002736a0d63b68398ace84a87c1c5444a85011b713ae97c8d593a6cf83325ea8354ac3aa102c03511a21b4e50
SSDEEP

768:M2oGKdfzF7zUTWVXdhK2GKdJ5i0uIaOwM6:M2oGKfzF7zUmTNGKXiFIaOI

Score

7^/10

discovery 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe

Executes dropped EXE 1 IoCs

pid	Process
1568	codecupdate.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2440-0-0x0000000000500000-0x000000000051E000-memory.dmp	upx
behavioral2/files/0x0009000000023c52-6.dat	upx
behavioral2/memory/2440-10-0x0000000000500000-0x000000000051E000-memory.dmp	upx
behavioral2/memory/1568-11-0x0000000000500000-0x000000000051E000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	codecupdate.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 1568	2440	8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe	85
PID 2440 wrote to memory of 1568	2440	8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe	85
PID 2440 wrote to memory of 1568	2440	8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe	85

C:\Users\Admin\AppData\Local\Temp\8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe
"C:\Users\Admin\AppData\Local\Temp\8fe900a20d598adeec846724010473b4a78d2df9e1c2bab79a0f47464e5681a4N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\codecupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\codecupdate.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\codecupdate.exe

Filesize
122KB

MD5
79ead51e3d4c1d158b4a4f62f01701ab

SHA1
350e8bef025d9d74e16dba05adfaf785da184bb6

SHA256
5bf924687e4603122a14bf319df97dff8169db4eda4135b0af235dcaa9ef9579

SHA512
f968527800d748244effc3941ce28f8868d757168c0783d3a8a0e8d3405631bf36d7b3a26c6454c3e8c852b99fd879ec73df8c2d810b82dc0f0f3ee89a8cf549

Download Submit
memory/1568-11-0x0000000000500000-0x000000000051E000-memory.dmp

Filesize
120KB

Download
memory/2440-0-0x0000000000500000-0x000000000051E000-memory.dmp

Filesize
120KB

Download
memory/2440-1-0x0000000000501000-0x0000000000502000-memory.dmp

Filesize
4KB

Download
memory/2440-10-0x0000000000500000-0x000000000051E000-memory.dmp

Filesize
120KB

Download