tofsee | eb51714bc9a3200707efbaf6a996dd51490c5674b129129eaba8cdddff96e8ba

Analysis

max time kernel
83s
max time network
83s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 18:34

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General

Target

23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe
Size

98KB
MD5

23857773eef5ec542ab9f8c9ee25d6c2
SHA1

629ad3d505e0470e4b9477f9c862a3f475579970
SHA256

eb51714bc9a3200707efbaf6a996dd51490c5674b129129eaba8cdddff96e8ba
SHA512

6c67da82cf375e978f42a11eb678bb4a61593470e4fdd8447629682b3feb86ba615a3d7684fbe37f0c15b5960a669c7db9e6969112a99161140d08b7a3186938
SSDEEP

1536:PA86xJ39qqj7pf//ndPtVwNtgszLgetXlII1LavPWoY27rCjjQSUd0:PqFFLVwgmgetXmI1WeoH1SUd0

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

Deletes itself 1 IoCs

pid	Process
1328	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2596	xkml.exe
2720	xkml.exe

Loads dropped DLL 2 IoCs

pid	Process
3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe
2596	xkml.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\xkml.exe\" /r"	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1164 set thread context of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 2596 set thread context of 2720	2596	xkml.exe	31
PID 2720 set thread context of 2480	2720	xkml.exe	32

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xkml.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xkml.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 1164 wrote to memory of 3016	1164	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	29
PID 3016 wrote to memory of 2596	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2596	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2596	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	30
PID 3016 wrote to memory of 2596	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	30
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2596 wrote to memory of 2720	2596	xkml.exe	31
PID 2720 wrote to memory of 2480	2720	xkml.exe	32
PID 2720 wrote to memory of 2480	2720	xkml.exe	32
PID 2720 wrote to memory of 2480	2720	xkml.exe	32
PID 2720 wrote to memory of 2480	2720	xkml.exe	32
PID 2720 wrote to memory of 2480	2720	xkml.exe	32
PID 2720 wrote to memory of 2480	2720	xkml.exe	32
PID 3016 wrote to memory of 1328	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	33
PID 3016 wrote to memory of 1328	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	33
PID 3016 wrote to memory of 1328	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	33
PID 3016 wrote to memory of 1328	3016	23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Users\Admin\AppData\Local\Temp\23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\23857773eef5ec542ab9f8c9ee25d6c2_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3016
- - C:\Users\Admin\xkml.exe
    "C:\Users\Admin\xkml.exe" /r
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2596
  - - C:\Users\Admin\xkml.exe
      "C:\Users\Admin\xkml.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2720
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2480
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\2545.bat" "
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1328

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\2545.bat

Filesize
117B

MD5
1bdc8e6e9404a92f451af82c160eebcd

SHA1
4724d788a9df4d991f0696e60948b2fa4f40fc06

SHA256
41d440f0d5b076e6aac40df2094f1b311225f3bdef2afa87358d6bdd1b2636f3

SHA512
c7167222f606c3bb14de8896a17692e818d1b36540b5501c35379a5632df6bc411fc40142a6829e308c0bcf63e25f9030ca11b3457cbeb56bffaab2461d16780

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

Filesize
98KB

MD5
23857773eef5ec542ab9f8c9ee25d6c2

SHA1
629ad3d505e0470e4b9477f9c862a3f475579970

SHA256
eb51714bc9a3200707efbaf6a996dd51490c5674b129129eaba8cdddff96e8ba

SHA512
6c67da82cf375e978f42a11eb678bb4a61593470e4fdd8447629682b3feb86ba615a3d7684fbe37f0c15b5960a669c7db9e6969112a99161140d08b7a3186938

Download Submit
memory/1164-0-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1164-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2480-60-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2480-66-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2480-44-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2480-42-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2480-65-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2480-63-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2596-37-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2596-34-0x0000000000230000-0x0000000000254000-memory.dmp

Filesize
144KB

Download
memory/2596-21-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2720-40-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-11-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-9-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-7-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-5-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-3-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-14-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3016-56-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads