4bcbb8983fe7425976c5a1789deff73fb138e80981f5ebfef1f835bcc6757760

Resubmissions

08/04/2025, 14:11

250408-rhjmcsvp15 10

22/03/2025, 06:18

250322-g2ywaay1fy 10

Analysis

max time kernel
8s
max time network
9s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2025, 14:11

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Reason

Machine shutdown

Report Analysis Logs

General

Target

f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe
Size

373KB
MD5

1390a05960fe6acd3fd25279513346f0
SHA1

c65393f72d9e00c770ba3ef393701bc87e13b938
SHA256

f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5
SHA512

90c3d8d61687e3bccd9e6e15f6c5f3db6770471878b452f9a11874ea70391eac5639424fd3f4a03de7729d642355fb2e6e0c4e65e3e4765cb76111a7b2de5bcc
SSDEEP

6144:tyMIULPy/x3xUArN62f7GU7njrbma/3LaQURrM2TuP6zJcW:XDy/xhUAtf7tjrbma7OJxuSzp

Score

7^/10

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-1-5-21-3446877943-4095308722-756223633-1000\Control Panel\International\Geo\Nation	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe

Executes dropped EXE 2 IoCs

pid	Process
4860	grotesque.exe
4940	grotesque.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-3446877943-4095308722-756223633-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kokobaka = "C:\\Users\\Admin\\AppData\\Roaming\\future\\grotesque.exe"	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4860 set thread context of 3688	4860	grotesque.exe	98

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	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	grotesque.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	grotesque.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3104 wrote to memory of 4860	3104	cmd.exe	95
PID 3104 wrote to memory of 4860	3104	cmd.exe	95
PID 3104 wrote to memory of 4860	3104	cmd.exe	95
PID 5192 wrote to memory of 4940	5192	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe	96
PID 5192 wrote to memory of 4940	5192	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe	96
PID 5192 wrote to memory of 4940	5192	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe	96
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98
PID 4860 wrote to memory of 3688	4860	grotesque.exe	98

C:\Users\Admin\AppData\Local\Temp\f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe
"C:\Users\Admin\AppData\Local\Temp\f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5192
- C:\Users\Admin\AppData\Roaming\future\grotesque.exe
  "C:\Users\Admin\AppData\Roaming\future\grotesque.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4940

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\future\grotesque.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:3104
- C:\Users\Admin\AppData\Roaming\future\grotesque.exe
  C:\Users\Admin\AppData\Roaming\future\grotesque.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4860
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    3⤵
    PID:3688

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

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\AppData\Roaming\future\grotesque.exe

Filesize
374KB

MD5
cf1d4e849a0df3ba1f2bd4a9bf4001d4

SHA1
a4847d6169567d3158dd7f6940a3ea2d83a907fa

SHA256
bdb45e8724ea61648e4da7d25f07d922d6aaad7a00d772d06d2ef02e5276c741

SHA512
4deb20f07df4dcf108bcffe6422ea571682dc3cdc50044d3239aef927a19c2ad436fa58184c54b8d693c33d2777771df0a3a31afba52b2871fba51a1c436e8d6

Download Submit
memory/3688-24-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3688-23-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3688-20-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3688-19-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4860-8-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/4860-9-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/4860-10-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/4940-18-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/4940-17-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/4940-16-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/5192-15-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/5192-14-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/5192-0-0x0000000074B22000-0x0000000074B23000-memory.dmp

Filesize
4KB

Download
memory/5192-13-0x0000000074B22000-0x0000000074B23000-memory.dmp

Filesize
4KB

Download
memory/5192-2-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/5192-1-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads