57d547dccd2ca59a4737dcf0e5df5411ec75fc0b5e40d9425f24044fbc1e6369

Analysis

max time kernel
101s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 02:13

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General

Target

abf6cc14f90ac6004c13cfa261477be0N.exe
Size

135KB
MD5

abf6cc14f90ac6004c13cfa261477be0
SHA1

e16e46ce71bc1cb23d883c7b872659d04aea924c
SHA256

57d547dccd2ca59a4737dcf0e5df5411ec75fc0b5e40d9425f24044fbc1e6369
SHA512

e1ab9719b41a1e6e7086376bb931c22a1726b982b418932ce209b601a6b7a2cae8a8d3c73ed36704d3a11ce378e80cf23f9feee4bf74ddbb35c9200afc2c9c88
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOe:YfU/WF6QMauSuiWNi9eNOl0007NZIOe

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	abf6cc14f90ac6004c13cfa261477be0N.exe

Executes dropped EXE 1 IoCs

pid	Process
2044	wuauclt.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1752-0-0x0000000000990000-0x00000000009B8000-memory.dmp	upx
behavioral2/files/0x0008000000023461-4.dat	upx
behavioral2/memory/2044-5-0x0000000000480000-0x00000000004A8000-memory.dmp	upx
behavioral2/memory/1752-6-0x0000000000990000-0x00000000009B8000-memory.dmp	upx
behavioral2/memory/1752-7-0x0000000000990000-0x00000000009B8000-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"	abf6cc14f90ac6004c13cfa261477be0N.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	abf6cc14f90ac6004c13cfa261477be0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2044	1752	abf6cc14f90ac6004c13cfa261477be0N.exe	83
PID 1752 wrote to memory of 2044	1752	abf6cc14f90ac6004c13cfa261477be0N.exe	83
PID 1752 wrote to memory of 2044	1752	abf6cc14f90ac6004c13cfa261477be0N.exe	83
PID 1752 wrote to memory of 2936	1752	abf6cc14f90ac6004c13cfa261477be0N.exe	96
PID 1752 wrote to memory of 2936	1752	abf6cc14f90ac6004c13cfa261477be0N.exe	96
PID 1752 wrote to memory of 2936	1752	abf6cc14f90ac6004c13cfa261477be0N.exe	96

C:\Users\Admin\AppData\Local\Temp\abf6cc14f90ac6004c13cfa261477be0N.exe
"C:\Users\Admin\AppData\Local\Temp\abf6cc14f90ac6004c13cfa261477be0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1752
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\abf6cc14f90ac6004c13cfa261477be0N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2936

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
135KB

MD5
996c6edfc835359e31fb12de9c050d9e

SHA1
90b61c8baed65837e8367528c4e96bb73134f5bf

SHA256
51b873aef56143238ed816d664be6ca68d05ceef280607a6f3dfd0313dd8619e

SHA512
1d7b676407e1c81e8c39168f4c0efd5bf8a52ad8db9fad6c40410bbefb8e1dff3f2a3b66d673098769e0355f39a80a80d8a0bdf94911addc56a51eae1e28b093

Download Submit
memory/1752-0-0x0000000000990000-0x00000000009B8000-memory.dmp

Filesize
160KB

Download
memory/1752-6-0x0000000000990000-0x00000000009B8000-memory.dmp

Filesize
160KB

Download
memory/1752-7-0x0000000000990000-0x00000000009B8000-memory.dmp

Filesize
160KB

Download
memory/2044-5-0x0000000000480000-0x00000000004A8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads