tofsee | 0cccbc24a88e2550c51dcddcd59d8bd7bc93ad70c87cdf6b227208f01034e586

Analysis

max time kernel
93s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/08/2024, 04:10

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General

Target
918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe
Size 156KB
Sample240813-erpthsydln
SHA256 0cccbc24a88e2550c51dcddcd59d8bd7bc93ad70c87cdf6b227208f01034e586
MD5 918ec60cf64e169e449ebac4f6185a04
SHA1 10372b0c44f180166dd725f492edd22f6ac5dbc2
SHA512 8ee819e1e7ec75739cfab92308771483cfe3c3a4b23beeb52189d7f8f65dcd817434bcf89e5d1653101fffa2437134cd547667883e997ef29b611ed1835c49ab
SSDEEP 1536:vByRsHaqTlSUl41dB29VJlq6RLdky6C6l7BLmOtNCL0PiWTHV0DgSKuBpj/LyTd:0SHVlSxdWVLdSl75jvPiAHV0EM/Lyh
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

94.75.255.140
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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2556	lpgu.exe
2640	lpgu.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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\lpgu.exe\" /r"	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4176 set thread context of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 2556 set thread context of 2640	2556	lpgu.exe	86
PID 2640 set thread context of 3536	2640	lpgu.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
2980	3536	WerFault.exe	87

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	lpgu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lpgu.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	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 4176 wrote to memory of 3844	4176	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	84
PID 3844 wrote to memory of 2556	3844	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	85
PID 3844 wrote to memory of 2556	3844	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	85
PID 3844 wrote to memory of 2556	3844	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	85
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2556 wrote to memory of 2640	2556	lpgu.exe	86
PID 2640 wrote to memory of 3536	2640	lpgu.exe	87
PID 2640 wrote to memory of 3536	2640	lpgu.exe	87
PID 2640 wrote to memory of 3536	2640	lpgu.exe	87
PID 2640 wrote to memory of 3536	2640	lpgu.exe	87
PID 2640 wrote to memory of 3536	2640	lpgu.exe	87
PID 3844 wrote to memory of 5052	3844	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	91
PID 3844 wrote to memory of 5052	3844	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	91
PID 3844 wrote to memory of 5052	3844	918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Users\Admin\AppData\Local\Temp\918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\918ec60cf64e169e449ebac4f6185a04_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3844
- - C:\Users\Admin\lpgu.exe
    "C:\Users\Admin\lpgu.exe" /r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2556
  - - C:\Users\Admin\lpgu.exe
      "C:\Users\Admin\lpgu.exe" /r
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2640
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3536
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 320
        6⤵
        Program crash
        
        PID:2980
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0214.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3536 -ip 3536
1⤵
PID:2768

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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0214.bat

Path C:\Users\Admin\AppData\Local\Temp\0214.bat
Size 117B
SHA256 81b3f84c68a47bf72d634870dd0ee19574378a2a516d6a54de66b2534d9c555a
MD5 63b2301c9d128b69a84c73bdb7f2cf5f
SHA1 e635647de119ede1100d1ca9a342604a064c3569
SHA512 f1e88a82348ef70a45b4d209dc8b88306279c50d96e0ee22e71fe631a0bf4b3ca46b37dca19bd979f647fca850388bdeeed086279bc575973086c24a8791b83a
MD5 SHA1 SHA512

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lpgu.exe

Path C:\Users\Admin\lpgu.exe
Size 156KB
SHA256 0cccbc24a88e2550c51dcddcd59d8bd7bc93ad70c87cdf6b227208f01034e586
MD5 918ec60cf64e169e449ebac4f6185a04
SHA1 10372b0c44f180166dd725f492edd22f6ac5dbc2
SHA512 8ee819e1e7ec75739cfab92308771483cfe3c3a4b23beeb52189d7f8f65dcd817434bcf89e5d1653101fffa2437134cd547667883e997ef29b611ed1835c49ab
SSDEEP 1536:vByRsHaqTlSUl41dB29VJlq6RLdky6C6l7BLmOtNCL0PiWTHV0DgSKuBpj/LyTd:0SHVlSxdWVLdSl75jvPiAHV0EM/Lyh
MD5 SHA1 SHA512 SSDEEP

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memory/2556-15-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/2640-16-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/3536-32-0x0000000000F40000-0x0000000000F50000-memory.dmp

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memory/3536-17-0x0000000000F40000-0x0000000000F50000-memory.dmp

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memory/3536-24-0x0000000000F40000-0x0000000000F50000-memory.dmp

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memory/3536-33-0x0000000002F70000-0x0000000002F71000-memory.dmp

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memory/3536-34-0x0000000000F40000-0x0000000000F50000-memory.dmp

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memory/3536-35-0x0000000000F40000-0x0000000000F50000-memory.dmp

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memory/3844-6-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/3844-4-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/3844-28-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/3844-1-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/4176-3-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4176-0-0x0000000000400000-0x000000000043A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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