857de405df42c47dc13015d8804ffc4c60db8068388c616d8997e5428fe6aad0

Analysis

max time kernel
103s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 10:01

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General

Target

bd7f21a62bf8e280aa35af88f8c62c20N.exe
Size

111KB
MD5

bd7f21a62bf8e280aa35af88f8c62c20
SHA1

b8835f327eb8fbbcb4015b62162b7ac3c386956c
SHA256

857de405df42c47dc13015d8804ffc4c60db8068388c616d8997e5428fe6aad0
SHA512

20667a8c0b8e993cadaf9624da637bf10e9bc70c40692273b070b1971372fa6d20a7c9648d7b57e3a995a9b13492a7e7db3788d71286241ac8fb4708d336a398
SSDEEP

1536:ELNIW39SaZTbFARlq7jC1OZstZu0TSVEdUJWTWd18f9:ELlbZTZX3BAtTSVEdUJWTWd18f9

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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation	bd7f21a62bf8e280aa35af88f8c62c20N.exe

Executes dropped EXE 1 IoCs

pid	Process
212	guifx.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2640-0-0x0000000000690000-0x00000000006AC000-memory.dmp	upx
behavioral2/files/0x0008000000023462-3.dat	upx
behavioral2/memory/212-5-0x0000000000C90000-0x0000000000CAC000-memory.dmp	upx
behavioral2/memory/2640-6-0x0000000000690000-0x00000000006AC000-memory.dmp	upx
behavioral2/memory/212-7-0x0000000000C90000-0x0000000000CAC000-memory.dmp	upx
behavioral2/memory/2640-8-0x0000000000690000-0x00000000006AC000-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\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Graphics = "\"C:\\ProgramData\\Graphics\\guifx.exe\" /run"	bd7f21a62bf8e280aa35af88f8c62c20N.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	bd7f21a62bf8e280aa35af88f8c62c20N.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 2640 wrote to memory of 212	2640	bd7f21a62bf8e280aa35af88f8c62c20N.exe	84
PID 2640 wrote to memory of 212	2640	bd7f21a62bf8e280aa35af88f8c62c20N.exe	84
PID 2640 wrote to memory of 212	2640	bd7f21a62bf8e280aa35af88f8c62c20N.exe	84
PID 2640 wrote to memory of 552	2640	bd7f21a62bf8e280aa35af88f8c62c20N.exe	97
PID 2640 wrote to memory of 552	2640	bd7f21a62bf8e280aa35af88f8c62c20N.exe	97
PID 2640 wrote to memory of 552	2640	bd7f21a62bf8e280aa35af88f8c62c20N.exe	97

C:\Users\Admin\AppData\Local\Temp\bd7f21a62bf8e280aa35af88f8c62c20N.exe
"C:\Users\Admin\AppData\Local\Temp\bd7f21a62bf8e280aa35af88f8c62c20N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\ProgramData\Graphics\guifx.exe
  "C:\ProgramData\Graphics\guifx.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:212
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\bd7f21a62bf8e280aa35af88f8c62c20N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:552

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
111KB

MD5
72f39f5727eb607ee57a5055d6757d63

SHA1
1fd461bd71f67bb5645932a087b06679ab8cdbb9

SHA256
7556194677de973290c0ea2f2d10f6268baf390b348d29c8faf6af3953603762

SHA512
4aceee8af3fd99ce99d5e35e2385261650b7305ac5bbc4be35087e13ed3f71c1029c9abd8831bb171ac670cffc8599e9dc624d8836555b80c47ed9052e79554f

Download Submit
memory/212-5-0x0000000000C90000-0x0000000000CAC000-memory.dmp

Filesize
112KB

Download
memory/212-7-0x0000000000C90000-0x0000000000CAC000-memory.dmp

Filesize
112KB

Download
memory/2640-0-0x0000000000690000-0x00000000006AC000-memory.dmp

Filesize
112KB

Download
memory/2640-6-0x0000000000690000-0x00000000006AC000-memory.dmp

Filesize
112KB

Download
memory/2640-8-0x0000000000690000-0x00000000006AC000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads