cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4

Analysis

max time kernel
94s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 12:23

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General

Target

cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe
Size

77KB
MD5

62765cbc50113b75f3266acfb6eedc70
SHA1

2d881eaa6bf6b5b11c3a9b5ecd86cc35ef7d2982
SHA256

cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4
SHA512

a6b1fceb06e77a4134e7b313a7a5583bed85fef41efb1111338e7ab0ecb03d799ca5dee6d7e166f72832ce0eab05775786ebcd4b78f5fc3d64440b7a8a908d20
SSDEEP

1536:nLNIW39SaZTbFARlq7jC1OZstZu0TS3gEdUJCkb0FG9:nLlbZTZX3BAtTS3gEdUJCkb0FG9

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe

Executes dropped EXE 1 IoCs

pid	Process
1680	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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Graphics = "\"C:\\ProgramData\\Graphics\\guifx.exe\" /run"	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.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	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.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 4744 wrote to memory of 1680	4744	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe	82
PID 4744 wrote to memory of 1680	4744	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe	82
PID 4744 wrote to memory of 1680	4744	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe	82
PID 4744 wrote to memory of 2376	4744	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe	91
PID 4744 wrote to memory of 2376	4744	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe	91
PID 4744 wrote to memory of 2376	4744	cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe	91

C:\Users\Admin\AppData\Local\Temp\cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe
"C:\Users\Admin\AppData\Local\Temp\cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4744
- C:\ProgramData\Graphics\guifx.exe
  "C:\ProgramData\Graphics\guifx.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1680
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\cbb422ae4be82fd3edf258be8292c52bd62922d4e2640c38e5d529c672643ec4N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376

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
77KB

MD5
ec171e2a90b64b81affb202a91cd35f9

SHA1
6fcd2adb0a4c62d160191864717f77c4e9e9a2af

SHA256
9fe151afd5fe181265bddbcc426b77f3b8ab1876e8743d180a3791a02d158cf9

SHA512
51868412d9d8f054c8fe5f491c1eda5a01c530e3efc6064de1ac2b18855389beee8362922880edb93cdb8a792c2ff7bfdea9db087941d7be445c75a4f51f73a1

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads