tofsee | 231eebbfeac8480860af0aa2e57c275bf2c1e7fa26288fb1424cbbc9e261e69f

Analysis

max time kernel
138s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19/07/2024, 04:18

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General

Target
5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
Size 255KB
Sample240719-ew6ylawanf
SHA256 231eebbfeac8480860af0aa2e57c275bf2c1e7fa26288fb1424cbbc9e261e69f
MD5 5a6f1e62b8443543418fe946cc21951c
SHA1 4bb3dc57fd0dda3e85c3f156142d8670777336c5
SHA512 e11fe0aa39137381a877c908b27b5bab0a0421109526462dffbd84b81c9ba47a756677e77d1e0ebf1555e407598d1205a006080174efb783606e5977fe8a92d8
SSDEEP 6144:csGUGKYxh+tcgagqz1YXoZcNYXoZcNYXoZcNYX:LGUGdh+tcgbqz1YXoZcNYXoZcNYXoZca
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee persistence trojan

Malware Config

Extracted

Family

tofsee

31.210.119.2
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

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	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1028	jjxgypg.exe
1352	jjxgypg.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\\jjxgypg.exe\" /r"	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5064 set thread context of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 1028 set thread context of 1352	1028	jjxgypg.exe	98
PID 1352 set thread context of 1380	1352	jjxgypg.exe	99

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
4656	1380	WerFault.exe	99

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 5064 wrote to memory of 3696	5064	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	93
PID 3696 wrote to memory of 1028	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	94
PID 3696 wrote to memory of 1028	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	94
PID 3696 wrote to memory of 1028	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	94
PID 3696 wrote to memory of 4312	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	95
PID 3696 wrote to memory of 4312	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	95
PID 3696 wrote to memory of 4312	3696	5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe	95
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1028 wrote to memory of 1352	1028	jjxgypg.exe	98
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	99
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	99
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	99
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	99
PID 1352 wrote to memory of 1380	1352	jjxgypg.exe	99

C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\5a6f1e62b8443543418fe946cc21951c_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3696
- - C:\Users\Admin\jjxgypg.exe
    "C:\Users\Admin\jjxgypg.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1028
  - - C:\Users\Admin\jjxgypg.exe
      "C:\Users\Admin\jjxgypg.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1352
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        
        PID:1380
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 324
        6⤵
        Program crash
        
        PID:4656
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7471.bat" "
    3⤵
    PID:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1380 -ip 1380
1⤵
PID:896

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

7471.bat

Path C:\Users\Admin\AppData\Local\Temp\7471.bat
Size 117B
SHA256 31fb27714f89685e0c73fc168c36132175e7ef372e2e5cd259474ca1d63d615d
MD5 900e98af12c059c9874f589baacd5ead
SHA1 9ca5db7f48bf3c94cfeb46afa65d6bc307fdb762
SHA512 d13be4df50ef1c4f6a3b40409342e232d7965ac9328cdf305909959cf9687bbadb63903048f47f17735fc37d221b432fbe90aa6da6b442ccbf37850c185d4cd9
MD5 SHA1 SHA512

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jjxgypg.exe

Path C:\Users\Admin\jjxgypg.exe
Size 255KB
SHA256 231eebbfeac8480860af0aa2e57c275bf2c1e7fa26288fb1424cbbc9e261e69f
MD5 5a6f1e62b8443543418fe946cc21951c
SHA1 4bb3dc57fd0dda3e85c3f156142d8670777336c5
SHA512 e11fe0aa39137381a877c908b27b5bab0a0421109526462dffbd84b81c9ba47a756677e77d1e0ebf1555e407598d1205a006080174efb783606e5977fe8a92d8
SSDEEP 6144:csGUGKYxh+tcgagqz1YXoZcNYXoZcNYXoZcNYX:LGUGdh+tcgbqz1YXoZcNYXoZcNYXoZca
MD5 SHA1 SHA512 SSDEEP

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memory/1352-19-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/1380-29-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/1380-30-0x00000000005B0000-0x00000000005B1000-memory.dmp

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memory/1380-31-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/1380-32-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3696-0-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3696-2-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3696-4-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3696-13-0x0000000000400000-0x0000000000436000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads