4bcbb8983fe7425976c5a1789deff73fb138e80981f5ebfef1f835bcc6757760

Resubmissions

14/04/2025, 07:51

250414-jp1kfssjz9 10

14/04/2025, 07:46

250414-jl9nyssjt9 10

08/04/2025, 15:58

250408-tevasswl18 10

08/04/2025, 14:19

250408-rm2nqsvqw2 10

Analysis

max time kernel
899s
max time network
900s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2025, 15:58

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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-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe

Executes dropped EXE 2 IoCs

pid	Process
3844	grotesque.exe
4636	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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kokobaka = "C:\\Users\\Admin\\AppData\\Roaming\\future\\grotesque.exe"	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AudioClient	vbc.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3844 set thread context of 4228	3844	grotesque.exe	99
PID 4636 set thread context of 4248	4636	grotesque.exe	104

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 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 SetWindowsHookEx 1 IoCs

pid	Process
4228	vbc.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 3844	4700	cmd.exe	96
PID 4700 wrote to memory of 3844	4700	cmd.exe	96
PID 4700 wrote to memory of 3844	4700	cmd.exe	96
PID 4476 wrote to memory of 4636	4476	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe	97
PID 4476 wrote to memory of 4636	4476	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe	97
PID 4476 wrote to memory of 4636	4476	f640f01e808f31a32d455a827fd646d5faf2a452b47833597990ffe9a6597ac5.exe	97
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 3844 wrote to memory of 4228	3844	grotesque.exe	99
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104
PID 4636 wrote to memory of 4248	4636	grotesque.exe	104

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:4476
- 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:4636
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    3⤵
    PID:4248

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:4700
- 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:3844
- - 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:4228

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c 邐邐邐邐
1⤵
PID:1452

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\grotesque.exe.log

Filesize
400B

MD5
af005173cce1850423f0f999693487cb

SHA1
950bf700178ab02d75b959cf92f1d493acba31ef

SHA256
38615066450a66b2950aa946bf8eea01f16e1f0dfc7c0748609e195c317c2a7a

SHA512
feb37c884eba52c5e74a3a9b1c604d42e6b25b98a1389ba9677361f756897d169824b9d7c214e150f6a1f07e7e63440baa07e6119aa08b919db0533a9fdb22bc

Download Submit
C:\Users\Admin\AppData\Roaming\future\grotesque.exe

Filesize
374KB

MD5
ea656b88804e4224fb33dc97088ea853

SHA1
ec0621ba3ee60f4f89a5440d22dd6833898d012a

SHA256
eb6272a9d4ff08a33e51df7e1f7654181b52a10ea4ea8b52dee85ff57ee61955

SHA512
58810bb59a10c8d9a32310314ad1641d0da7186fc2b3c91818ac0cb0db7088161f257dd3268b711718cb74c086f7ed5d710ee010cdfb4c6eb591adae8a205b75

Download Submit
memory/3844-10-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/3844-26-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/3844-8-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/3844-9-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-19-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-23-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-75-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-35-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-24-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-25-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-22-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-18-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4228-21-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4248-30-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4248-32-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4476-0-0x0000000074622000-0x0000000074623000-memory.dmp

Filesize
4KB

Download
memory/4476-2-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/4476-15-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/4476-12-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/4476-1-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/4476-11-0x0000000074622000-0x0000000074623000-memory.dmp

Filesize
4KB

Download
memory/4636-17-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/4636-31-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download
memory/4636-16-0x0000000074620000-0x0000000074BD1000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads