9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663

Analysis

max time kernel
55s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/09/2024, 15:12

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General

Target

9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe
Size

76KB
MD5

5a20e2daa11f9f3e3a91ac74c2fa8880
SHA1

46ba772ec4e3084aaa80fc7065ff2dd93c82c698
SHA256

9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663
SHA512

5fa47eabde3f6cc5a873cafd5f6573104b4fc339572301fc567a911f27c260fdac55fafd5b68a179a6a14ffc1a2b9b7bf28d981a07627dbf969457eba92ebb46
SSDEEP

768:ROIrCiYGNP1YA+xOF4/i/BEYkp7P6lweQDhDmpU5GFrrEzWsdSE0d8pUHIkI0Iof:R7dNP1YLxO+2G40OIkaof

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	gfxuey.exe

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe

Executes dropped EXE 1 IoCs

pid	Process
3908	gfxuey.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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gfxuey = "C:\\Users\\Admin\\gfxuey.exe"	gfxuey.exe

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	9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gfxuey.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
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3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
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3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
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3908	gfxuey.exe
3908	gfxuey.exe
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3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe
3908	gfxuey.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1132	9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe
3908	gfxuey.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 3908	1132	9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe	84
PID 1132 wrote to memory of 3908	1132	9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe	84
PID 1132 wrote to memory of 3908	1132	9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe	84

C:\Users\Admin\AppData\Local\Temp\9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe
"C:\Users\Admin\AppData\Local\Temp\9df572615fc94f42c09518898dbc04f63a528496ad16acc26362e601d14b3663N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\gfxuey.exe
  "C:\Users\Admin\gfxuey.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:3908

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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:\Users\Admin\gfxuey.exe

Filesize
76KB

MD5
3fceefaddee6c7b122d51094ff06d10f

SHA1
db87dbaea3c9cfa8d7055b26b8dc88de33cbf6c4

SHA256
d812a30d51cdc9ee922c85e3eabe2187ca40c3d12a887ad9604acb6ef5798c84

SHA512
c8ea64a450879616e1408abfb45adde356992a47ffb9660d84c837d921321ac208e7ddd90ce84ebc24cc376aaeff779e395c649d7c87ae1c3d39d8342ec99a6f

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