tofsee | 4270d9f809d18daa8f77b828246d5d2130dcd899e20656cfe0bff05332db991e

Analysis

max time kernel
135s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2024, 04:24

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General

Target
56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe
Size 133KB
Sample240718-e1qgeavelm
SHA256 4270d9f809d18daa8f77b828246d5d2130dcd899e20656cfe0bff05332db991e
MD5 56213a6487ab2bccbc59e7e87aabff95
SHA1 40748ef8241587c207311160e9d1115e0bb4c374
SHA512 c8c60671d23ad59dc7dd7dd7f02ee6988904bc9d72a162ac68b2e9e43da8f7ca13ddc9d49e81686840ae2776ba1b8f37fddc3705c6d9f7a1acba9da871d5cc3d
SSDEEP 1536:FnTcqpP5uH0gP2r5zMiqCWQ6Q/GeFiIc7tnE0sPST6Q1:FnTcs5fxr5zMVwrwtnE0saD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee 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

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-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1144	eaxi.exe
4636	eaxi.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-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\eaxi.exe\" /r"	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3352 set thread context of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 1144 set thread context of 4636	1144	eaxi.exe	86
PID 4636 set thread context of 3732	4636	eaxi.exe	87

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
3964	3732	WerFault.exe	87

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 3352 wrote to memory of 2004	3352	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	84
PID 2004 wrote to memory of 1144	2004	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	85
PID 2004 wrote to memory of 1144	2004	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	85
PID 2004 wrote to memory of 1144	2004	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	85
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 1144 wrote to memory of 4636	1144	eaxi.exe	86
PID 4636 wrote to memory of 3732	4636	eaxi.exe	87
PID 4636 wrote to memory of 3732	4636	eaxi.exe	87
PID 4636 wrote to memory of 3732	4636	eaxi.exe	87
PID 4636 wrote to memory of 3732	4636	eaxi.exe	87
PID 4636 wrote to memory of 3732	4636	eaxi.exe	87
PID 2004 wrote to memory of 2076	2004	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	91
PID 2004 wrote to memory of 2076	2004	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	91
PID 2004 wrote to memory of 2076	2004	56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Users\Admin\AppData\Local\Temp\56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\56213a6487ab2bccbc59e7e87aabff95_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Users\Admin\eaxi.exe
    "C:\Users\Admin\eaxi.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1144
  - - C:\Users\Admin\eaxi.exe
      "C:\Users\Admin\eaxi.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:4636
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        
        PID:3732
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 320
        6⤵
        Program crash
        
        PID:3964
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5504.bat" "
    3⤵
    PID:2076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3732 -ip 3732
1⤵
PID:1164

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

5504.bat

Path C:\Users\Admin\AppData\Local\Temp\5504.bat
Size 117B
SHA256 255e474dc0d30684a6c067374b95b0082e9aa282affe220737f39cb90d9113a4
MD5 c7280fb5ee50157f35084abc765a4e74
SHA1 4c1c7a57bf19232cb38dca15a298f561554cd2d3
SHA512 bc58a5d324c791d3ccbfc80458f582c7deb8e48140c3796f0730e9c1816ecac96a578726dd8db54f1dc4271815f7d2eaba36ed4d14565138b6e9ef96837c2c9f
MD5 SHA1 SHA512

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eaxi.exe

Path C:\Users\Admin\eaxi.exe
Size 133KB
SHA256 4270d9f809d18daa8f77b828246d5d2130dcd899e20656cfe0bff05332db991e
MD5 56213a6487ab2bccbc59e7e87aabff95
SHA1 40748ef8241587c207311160e9d1115e0bb4c374
SHA512 c8c60671d23ad59dc7dd7dd7f02ee6988904bc9d72a162ac68b2e9e43da8f7ca13ddc9d49e81686840ae2776ba1b8f37fddc3705c6d9f7a1acba9da871d5cc3d
SSDEEP 1536:FnTcqpP5uH0gP2r5zMiqCWQ6Q/GeFiIc7tnE0sPST6Q1:FnTcs5fxr5zMVwrwtnE0saD
MD5 SHA1 SHA512 SSDEEP

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memory/2004-0-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/2004-2-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/2004-7-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/3732-13-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

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memory/3732-20-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

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memory/3732-27-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

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memory/3732-28-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

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memory/3732-29-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

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memory/3732-30-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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