tofsee | 48c2b90f3474f4d286de08c54b114428b3d73497c0878b9a6185be07489d45d8

Analysis

max time kernel
150s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 06:28

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General

Target

bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
Size

78KB
MD5

bc1883b07b47423bd30645e54db4775c
SHA1

2b96b8027083c5c44189ac03bafcc71df82a8ee1
SHA256

48c2b90f3474f4d286de08c54b114428b3d73497c0878b9a6185be07489d45d8
SHA512

6185931b4a06cd38dfaaecd4a60160bf7b07fa9bec3a1a2da0a1bbcda5ad7cf7f78b1a55810e065a1c6f29c7b5bbd64d584172e3d7386f6195ba1c8b4b28a85e
SSDEEP

1536:Kgzoa0BgdObHOjEb+96omECPxuXfDZEEkU3rHt81Hqf:Lzoa0yQnOhmEHCEkgry1H

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

185.4.227.76

188.165.132.183

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3216	xxgfrdqs.exe
3680	xxgfrdqs.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\xxgfrdqs.exe\""	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2200 set thread context of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 3216 set thread context of 3680	3216	xxgfrdqs.exe	84
PID 3680 set thread context of 3648	3680	xxgfrdqs.exe	85

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
3584	3648	WerFault.exe	85

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	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xxgfrdqs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xxgfrdqs.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	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3752	2200	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	82
PID 3752 wrote to memory of 3216	3752	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	83
PID 3752 wrote to memory of 3216	3752	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	83
PID 3752 wrote to memory of 3216	3752	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	83
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3216 wrote to memory of 3680	3216	xxgfrdqs.exe	84
PID 3680 wrote to memory of 3648	3680	xxgfrdqs.exe	85
PID 3680 wrote to memory of 3648	3680	xxgfrdqs.exe	85
PID 3680 wrote to memory of 3648	3680	xxgfrdqs.exe	85
PID 3680 wrote to memory of 3648	3680	xxgfrdqs.exe	85
PID 3680 wrote to memory of 3648	3680	xxgfrdqs.exe	85
PID 3752 wrote to memory of 3536	3752	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	89
PID 3752 wrote to memory of 3536	3752	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	89
PID 3752 wrote to memory of 3536	3752	bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\bc1883b07b47423bd30645e54db4775c_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3752
- - C:\Users\Admin\xxgfrdqs.exe
    "C:\Users\Admin\xxgfrdqs.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3216
  - - C:\Users\Admin\xxgfrdqs.exe
      "C:\Users\Admin\xxgfrdqs.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3680
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3648
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 328
        6⤵
        Program crash
        
        PID:3584
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8418.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 3648
1⤵
PID:4148

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\8418.bat

Filesize
266B

MD5
3555ddebfaae7d4d5c8ce271a43a75bb

SHA1
2a2312b075f2b2b9e78d2b562b03684c46d48270

SHA256
bee61b88de6eaca4faee2d02d8a53c9686283a3c078b7a1c8c58148a498dae69

SHA512
f8ddb058cb3b4bd98dee168185ec5683e6c80f277ecfed10314f4f53609511b5571c1d9eddf57355bdae59fc5d2b03408d05d38c402e5796302cc6596093a549

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

Filesize
78KB

MD5
bc1883b07b47423bd30645e54db4775c

SHA1
2b96b8027083c5c44189ac03bafcc71df82a8ee1

SHA256
48c2b90f3474f4d286de08c54b114428b3d73497c0878b9a6185be07489d45d8

SHA512
6185931b4a06cd38dfaaecd4a60160bf7b07fa9bec3a1a2da0a1bbcda5ad7cf7f78b1a55810e065a1c6f29c7b5bbd64d584172e3d7386f6195ba1c8b4b28a85e

Download Submit
memory/2200-3-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2200-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3216-18-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3648-34-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/3648-36-0x0000000000330000-0x0000000000341000-memory.dmp

Filesize
68KB

Download
memory/3648-35-0x0000000000330000-0x0000000000341000-memory.dmp

Filesize
68KB

Download
memory/3648-19-0x0000000000330000-0x0000000000341000-memory.dmp

Filesize
68KB

Download
memory/3648-33-0x0000000000330000-0x0000000000341000-memory.dmp

Filesize
68KB

Download
memory/3680-16-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3752-5-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3752-29-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3752-7-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3752-1-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads