tofsee | 20fed4724d464893fcfcff65aa0543ad144d525251600ad21003cbdad809a777

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
30-01-2025 15:20

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General

Target

JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe
Size

198KB
MD5

6413f35ad53a18a8946b8637e00dc10e
SHA1

b7d6ba8a2b34365f8e4256d3fb1d95ff7f1c8071
SHA256

20fed4724d464893fcfcff65aa0543ad144d525251600ad21003cbdad809a777
SHA512

d99ae0228fcb4412bd2968e661453de1aa460a4787c2941661aeb7fcf90321a18b8b6fd99af6f494aac8b995f695b3dd40bc7d4035634fae89bcdd55b846d6b7
SSDEEP

3072:haNmy7njLiaxec2ndrUut49Yojngu8KoQM0CIi:UXnd92dbbdf0

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

64.20.54.234

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe

Executes dropped EXE 2 IoCs

pid	Process
100	jcqggrw.exe
1680	jcqggrw.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-1-5-21-4003209913-3868522715-854928974-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\jcqggrw.exe\" /r"	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4044 set thread context of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 100 set thread context of 1680	100	jcqggrw.exe	85
PID 1680 set thread context of 4448	1680	jcqggrw.exe	86

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
516	4448	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 6 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	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jcqggrw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jcqggrw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 4044 wrote to memory of 536	4044	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	83
PID 536 wrote to memory of 100	536	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	84
PID 536 wrote to memory of 100	536	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	84
PID 536 wrote to memory of 100	536	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	84
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 100 wrote to memory of 1680	100	jcqggrw.exe	85
PID 1680 wrote to memory of 4448	1680	jcqggrw.exe	86
PID 1680 wrote to memory of 4448	1680	jcqggrw.exe	86
PID 1680 wrote to memory of 4448	1680	jcqggrw.exe	86
PID 1680 wrote to memory of 4448	1680	jcqggrw.exe	86
PID 1680 wrote to memory of 4448	1680	jcqggrw.exe	86
PID 536 wrote to memory of 4812	536	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	90
PID 536 wrote to memory of 4812	536	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	90
PID 536 wrote to memory of 4812	536	JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4044
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6413f35ad53a18a8946b8637e00dc10e.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:536
- - C:\Users\Admin\jcqggrw.exe
    "C:\Users\Admin\jcqggrw.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:100
  - - C:\Users\Admin\jcqggrw.exe
      "C:\Users\Admin\jcqggrw.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1680
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4448
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 320
        6⤵
        Program crash
        
        PID:516
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7701.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4448 -ip 4448
1⤵
PID:1652

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

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\Local\Temp\7701.bat

Filesize
117B

MD5
6d542be04116ccf5f10fc2ad6cf0df2a

SHA1
c496bd29980f0d07cc3df53fe738af5e941bb698

SHA256
353c0dfa7bacf87a3b7dc90f80a2c3142207e31b82debd57ec37e436b8c1ff9e

SHA512
b7dcca2aff4a5ee86b8b0a7e49b2acb73cb047a0908e995712f6f0216d6d2b163123a2470fe56ea675f04d56486d5494aedffbd363c67cc1d80d8d74f3533d56

Download Submit
C:\Users\Admin\jcqggrw.exe

Filesize
198KB

MD5
6413f35ad53a18a8946b8637e00dc10e

SHA1
b7d6ba8a2b34365f8e4256d3fb1d95ff7f1c8071

SHA256
20fed4724d464893fcfcff65aa0543ad144d525251600ad21003cbdad809a777

SHA512
d99ae0228fcb4412bd2968e661453de1aa460a4787c2941661aeb7fcf90321a18b8b6fd99af6f494aac8b995f695b3dd40bc7d4035634fae89bcdd55b846d6b7

Download Submit
memory/100-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/536-27-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/536-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/536-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1680-15-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4044-3-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4044-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4448-16-0x0000000000750000-0x0000000000760000-memory.dmp

Filesize
64KB

Download
memory/4448-22-0x0000000000750000-0x0000000000760000-memory.dmp

Filesize
64KB

Download
memory/4448-31-0x0000000000750000-0x0000000000760000-memory.dmp

Filesize
64KB

Download
memory/4448-32-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/4448-33-0x0000000000750000-0x0000000000760000-memory.dmp

Filesize
64KB

Download
memory/4448-34-0x0000000000750000-0x0000000000760000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads