ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f

Analysis

max time kernel
127s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 03:14

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General

Target

ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe
Size

81KB
MD5

cef506bf2ab673530d99bbc5fef8c468
SHA1

060e78ab9b77608476959b34f6ab1a258546cc57
SHA256

ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f
SHA512

d812d0f759607c38ee8163922005ad9627c609c72457b3ef1c905015cbf3cdd15e863b2499a37c76195639a6feb4144c425fa8712a54ff0c0b65531b3928dd94
SSDEEP

1536:hwdAbnmVhphWZp+iUO++AXljiBimx6gNwJjZf3xUZv:hwdVhpYmG+Tismx6gsluZv

Score

7^/10

defense_evasion discovery persistence

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe

Executes dropped EXE 1 IoCs

pid	Process
1184	guifx.exe

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\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Graphics = "\"C:\\ProgramData\\Graphics\\guifx.exe\" /run"	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.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	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	guifx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 1184	1556	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe	87
PID 1556 wrote to memory of 1184	1556	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe	87
PID 1556 wrote to memory of 1184	1556	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe	87
PID 1556 wrote to memory of 5020	1556	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe	97
PID 1556 wrote to memory of 5020	1556	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe	97
PID 1556 wrote to memory of 5020	1556	ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe	97

C:\Users\Admin\AppData\Local\Temp\ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe
"C:\Users\Admin\AppData\Local\Temp\ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1556
- C:\ProgramData\Graphics\guifx.exe
  "C:\ProgramData\Graphics\guifx.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1184
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\ef12e5bf42d3d30cca025fd55aa567fc4b64befdb8a0a2f74ecb84d8ebd4a50f.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5020

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1020,i,12470628711992022444,7767535593390851522,262144 --variations-seed-version --mojo-platform-channel-handle=4084 /prefetch:8
1⤵
PID:1812

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\Graphics\guifx.exe

Filesize
81KB

MD5
51ce650b6967960e3200608a714c3c70

SHA1
41f8687e09a7cb849461189a0384e848b089624d

SHA256
51e74410878e5cefc4deb1dfd14e554e5c1234a16bbec11d3b3618b880445c10

SHA512
8f9b9cde6bdaf5b7dc4eedffb186ed5ddb42f5999d4c9d804b46e9966368c4f520618f647c74bc5885c8a17aa4b749688c437a83268d26e08f3a8950746bc059

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads