tofsee | 81c12f73122dd4e43b598c5f839f085044192e103281cda5cc8e3b64f4e741eb

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-01-2025 05:46

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General

Target

JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe
Size

189KB
MD5

535f97a8b48d7069ba2f6c3441003bd9
SHA1

d84624a83e75632a06f4535370b98c56f1d6fa97
SHA256

81c12f73122dd4e43b598c5f839f085044192e103281cda5cc8e3b64f4e741eb
SHA512

502de5f254cb0e0e3f4e546116074c446cf63d7e82f0d447be53207896c3a3731065d68fc9b024dea7876edcb72abb6cad29d828352af036f6869e9bbf1ebc22
SSDEEP

3072:8YI7L+itrYNhtaeMqfGkR+nWSmOhqdYCPd6GFbK+YGa3yU:eGtckR+nWSmOhqdYCPd6GFbK+YGa3yU

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

91.121.4.118

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

Deletes itself 1 IoCs

pid	Process
1492	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2564	ghryv.exe
2780	ghryv.exe

Loads dropped DLL 3 IoCs

pid	Process
2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe
2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe
2564	ghryv.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\ghryv.exe\" /r"	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2564 set thread context of 2780	2564	ghryv.exe	32
PID 2780 set thread context of 2568	2780	ghryv.exe	33

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 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_535f97a8b48d7069ba2f6c3441003bd9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ghryv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ghryv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2736 wrote to memory of 2748	2736	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	30
PID 2748 wrote to memory of 2564	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	31
PID 2748 wrote to memory of 2564	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	31
PID 2748 wrote to memory of 2564	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	31
PID 2748 wrote to memory of 2564	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	31
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2564 wrote to memory of 2780	2564	ghryv.exe	32
PID 2780 wrote to memory of 2568	2780	ghryv.exe	33
PID 2780 wrote to memory of 2568	2780	ghryv.exe	33
PID 2780 wrote to memory of 2568	2780	ghryv.exe	33
PID 2780 wrote to memory of 2568	2780	ghryv.exe	33
PID 2780 wrote to memory of 2568	2780	ghryv.exe	33
PID 2780 wrote to memory of 2568	2780	ghryv.exe	33
PID 2748 wrote to memory of 1492	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	34
PID 2748 wrote to memory of 1492	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	34
PID 2748 wrote to memory of 1492	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	34
PID 2748 wrote to memory of 1492	2748	JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_535f97a8b48d7069ba2f6c3441003bd9.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Users\Admin\ghryv.exe
    "C:\Users\Admin\ghryv.exe" /r
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2564
  - - C:\Users\Admin\ghryv.exe
      "C:\Users\Admin\ghryv.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2780
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2568
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\3366.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1492

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

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\3366.bat

Filesize
117B

MD5
2537bf9239b7390f4978feef0a344925

SHA1
da31c4dfa58c7554fc18792d097e43682bfd74e2

SHA256
764c3f0867e17c78ace1f938696c47001a763e5bee416285c1c24dcc20528e73

SHA512
5aec05e8c1d466ef70dac7a4ee204e1873e1b2924eaadd924108facf3e1b66e5f7a324d2d9bcde39c9ec7560abe56751f8ded85a0af5aeaaac0c709288873add

Download Submit
\Users\Admin\ghryv.exe

Filesize
189KB

MD5
535f97a8b48d7069ba2f6c3441003bd9

SHA1
d84624a83e75632a06f4535370b98c56f1d6fa97

SHA256
81c12f73122dd4e43b598c5f839f085044192e103281cda5cc8e3b64f4e741eb

SHA512
502de5f254cb0e0e3f4e546116074c446cf63d7e82f0d447be53207896c3a3731065d68fc9b024dea7876edcb72abb6cad29d828352af036f6869e9bbf1ebc22

Download Submit
memory/2568-69-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2568-58-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2568-45-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-47-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2568-50-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2568-56-0x0000000000080000-0x00000000000A6000-memory.dmp

Filesize
152KB

Download
memory/2568-57-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/2748-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-2-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-66-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2780-43-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads