400c24bdb9b7dabfcd9a8a2f137550f338014d833d169c6e6f4252910fb95feb

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:15

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General

Target

a30ce01ad9f6493d46ac928557bcdd4d.exe
Size

373KB
MD5

a30ce01ad9f6493d46ac928557bcdd4d
SHA1

2c97797dac7e4139bc56c0374886c78cb1f1e2ea
SHA256

6d6bcd0687dea7214a7de4e162276b1505893f54fc1594fa917b20710f4234b5
SHA512

9101a89bad9b1a6f3c789526ea1a02ca04fd84188027979b192c720664ad5dcfff224cdfb8c3e4f7dbddf74d34fb37d751e2a544d286210c1e6940a2f7474459
SSDEEP

6144:tyMIULPy/x3xUArN62f7GU7njrbma/3LaQURrM2TuP6zJcN:XDy/xhUAtf7tjrbma7OJxuSz2

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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	a30ce01ad9f6493d46ac928557bcdd4d.exe

Executes dropped EXE 1 IoCs

pid	Process
6088	grotesque.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kokobaka = "C:\\Users\\Admin\\AppData\\Roaming\\future\\grotesque.exe"	a30ce01ad9f6493d46ac928557bcdd4d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AudioClient	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 6088 set thread context of 4732	6088	grotesque.exe	94

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727\dtmp1.tmp	vbc.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	a30ce01ad9f6493d46ac928557bcdd4d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	grotesque.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4732	vbc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 6088	860	a30ce01ad9f6493d46ac928557bcdd4d.exe	92
PID 860 wrote to memory of 6088	860	a30ce01ad9f6493d46ac928557bcdd4d.exe	92
PID 860 wrote to memory of 6088	860	a30ce01ad9f6493d46ac928557bcdd4d.exe	92
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94
PID 6088 wrote to memory of 4732	6088	grotesque.exe	94

C:\Users\Admin\AppData\Local\Temp\a30ce01ad9f6493d46ac928557bcdd4d.exe
"C:\Users\Admin\AppData\Local\Temp\a30ce01ad9f6493d46ac928557bcdd4d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:860
- 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:6088
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    3⤵
    - Adds Run key to start application
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    PID:4732

Network

MITRE ATT&CK Enterprise v15

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
373KB

MD5
5efed98566c066565ca29923a384430b

SHA1
15a5fa13ae3f12f0059f46194fe4e83232ab12cb

SHA256
aa9d28da273b57d9907a4577b56ad619bd21c71c4c7de5aa95d29d5e0e784af0

SHA512
6904bd948d5047104b2c5f87edf034a9e1157b4ee46e0c60d9f2bcfb5a9dd3c0fe4b42593823a01a1b501358b27a150c6edef27f8cb8897cf31ab9d29b26e3a1

Download Submit
memory/860-0-0x0000000075052000-0x0000000075053000-memory.dmp

Filesize
4KB

Download
memory/860-1-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/860-2-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/860-16-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/4732-20-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4732-23-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4732-26-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4732-24-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4732-28-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4732-27-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4732-29-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/6088-18-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/6088-19-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/6088-17-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/6088-25-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads