49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6

General

Target
49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe
Size 111KB
Sample241102-xryqjashll
SHA256 49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6
MD5 edbc02c487e8424f0ca0d3d0ea22a350
SHA1 5cf0c9d9115b76173eafc7af7cd4df99162133bc
SHA512 c2017498abe5968e0a068a68312b2e0226b29713b0f4301f0248752a3c310c92d006630d4e8899871b13ce6d0511951e47b3cfe85e53f8e7ea9bf1415d6d8ece
SSDEEP 1536:ELNIW39SaZTbFARlq7jC1OZstZu0TSVEdUJWTWd18fe:ELlbZTZX3BAtTSVEdUJWTWd18fe
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe

Executes dropped EXE 1 IoCs

pid	Process
1008	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Graphics = "\"C:\\ProgramData\\Graphics\\guifx.exe\" /run"	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.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

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2680-0-0x0000000000690000-0x00000000006AC000-memory.dmp	upx
behavioral2/files/0x0007000000023cb0-3.dat	upx
behavioral2/memory/1008-5-0x00000000009C0000-0x00000000009DC000-memory.dmp	upx
behavioral2/memory/2680-6-0x0000000000690000-0x00000000006AC000-memory.dmp	upx
behavioral2/memory/2680-7-0x0000000000690000-0x00000000006AC000-memory.dmp	upx

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	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.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 2680 wrote to memory of 1008	2680	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe	84
PID 2680 wrote to memory of 1008	2680	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe	84
PID 2680 wrote to memory of 1008	2680	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe	84
PID 2680 wrote to memory of 1172	2680	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe	98
PID 2680 wrote to memory of 1172	2680	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe	98
PID 2680 wrote to memory of 1172	2680	49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe	98

C:\Users\Admin\AppData\Local\Temp\49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe
"C:\Users\Admin\AppData\Local\Temp\49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- C:\ProgramData\Graphics\guifx.exe
  "C:\ProgramData\Graphics\guifx.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1008
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\49175b954d51f9d1b5e4e89a4e440c30961c62ff3f8c19be7cb000b812b7b5a6N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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guifx.exe

Path C:\ProgramData\Graphics\guifx.exe
Size 111KB
SHA256 7c2c519155b1df2392a41522c44ae7e8f0f3fd4ab01d3bae07e92cc391191e86
MD5 e79c6c77b4a497c3258eaa5bf5ce7e40
SHA1 67953919c04e44e2e64d753418393aea52c82c19
SHA512 64e84d1591435abf8401e17d9c611c15b0cae874fe7e7f9253b490b001bb8ae0c3f471006aa73ff74efc78f7ddb6dcbfdda155405e2ee3f78864cf02ac8869b3
SSDEEP 1536:ELNIW39SaZTbFARlq7jC1OZstZu0TSVEdUJWTWd18fD:ELlbZTZX3BAtTSVEdUJWTWd18fD
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1008-5-0x00000000009C0000-0x00000000009DC000-memory.dmp

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memory/2680-0-0x0000000000690000-0x00000000006AC000-memory.dmp

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memory/2680-6-0x0000000000690000-0x00000000006AC000-memory.dmp

Download

memory/2680-7-0x0000000000690000-0x00000000006AC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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