6a0f3730fc5f5588aaea8e2a2b6c878405c90d23d8bdc1683262d09a458509e1

Analysis

max time kernel
103s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 12:42

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General

Target

6e5416a8514789535124d5f245236de0N.exe
Size

134KB
MD5

6e5416a8514789535124d5f245236de0
SHA1

345075bdb62e4e44e6c0a9c96150e2beac14c5a6
SHA256

6a0f3730fc5f5588aaea8e2a2b6c878405c90d23d8bdc1683262d09a458509e1
SHA512

3bf8c5b03db4fecbb0e2f1f1aa0e50159aa3d383e922ef9cacc81b05b50a80d4476649bc7b69058f91e6b02477cefe1546c4b0f39e82264129a8e8587261a9a1
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOz:YfU/WF6QMauSuiWNi9eNOl0007NZIOz

Score

7^/10

defense_evasion discovery persistence 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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	6e5416a8514789535124d5f245236de0N.exe

Executes dropped EXE 1 IoCs

pid	Process
3640	wuauclt.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5016-0-0x0000000000F70000-0x0000000000F98000-memory.dmp	upx
behavioral2/files/0x00070000000234c0-3.dat	upx
behavioral2/memory/3640-5-0x0000000000D70000-0x0000000000D98000-memory.dmp	upx
behavioral2/memory/5016-6-0x0000000000F70000-0x0000000000F98000-memory.dmp	upx
behavioral2/memory/3640-7-0x0000000000D70000-0x0000000000D98000-memory.dmp	upx
behavioral2/memory/5016-8-0x0000000000F70000-0x0000000000F98000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	6e5416a8514789535124d5f245236de0N.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
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 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6e5416a8514789535124d5f245236de0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 3640	5016	6e5416a8514789535124d5f245236de0N.exe	84
PID 5016 wrote to memory of 3640	5016	6e5416a8514789535124d5f245236de0N.exe	84
PID 5016 wrote to memory of 3640	5016	6e5416a8514789535124d5f245236de0N.exe	84
PID 5016 wrote to memory of 3884	5016	6e5416a8514789535124d5f245236de0N.exe	96
PID 5016 wrote to memory of 3884	5016	6e5416a8514789535124d5f245236de0N.exe	96
PID 5016 wrote to memory of 3884	5016	6e5416a8514789535124d5f245236de0N.exe	96

C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe
"C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5016
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3640
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

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:\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
46a6f3e48382c11fcf0478e061b16ff5

SHA1
7726f75235622eefc9887cd01dca40000f5e6b7b

SHA256
8fc86de7e3c9f6198ac326cfbd76fef4363e72745a0fc601d23ccdf5ac9483e7

SHA512
7320805f13ed5a9b55fb7450e850886a347e887eeadfd51c08660a7482edf100cf56c877be3e46f507debd083b876683589e483b2d709ca9bb47e2899b96918b

Download Submit
memory/3640-5-0x0000000000D70000-0x0000000000D98000-memory.dmp

Filesize
160KB

Download
memory/3640-7-0x0000000000D70000-0x0000000000D98000-memory.dmp

Filesize
160KB

Download
memory/5016-0-0x0000000000F70000-0x0000000000F98000-memory.dmp

Filesize
160KB

Download
memory/5016-6-0x0000000000F70000-0x0000000000F98000-memory.dmp

Filesize
160KB

Download
memory/5016-8-0x0000000000F70000-0x0000000000F98000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads