tofsee | f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b

Analysis

max time kernel
145s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 16:15

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General

Target

JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe
Size

243KB
MD5

634b022c0ce8ef6d058dd4585135bfd1
SHA1

28ab3d6e6e41d10b881136f4b92a891dac69b761
SHA256

f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b
SHA512

73d7f31c18acbf4fc5ef668254cf3a8c3e4817a31d014a7bbe381ef6931ca85232b0621be2ade16f7e5dd0644559ad094e9e763efe0894e8cbad403c718ffd04
SSDEEP

6144:LBZQuBT3I7M1BFd6F2zkO8mvIhA3ATIXfzX3fc8:NZ73I7WBPzkBcI5MXfzn0

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\stdtyolj = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1312	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\stdtyolj\ImagePath = "C:\\Windows\\SysWOW64\\stdtyolj\\ljtrrhqg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	ljtrrhqg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2860	2784	ljtrrhqg.exe	44

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2864	sc.exe
2672	sc.exe
2816	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ljtrrhqg.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2300	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	31
PID 2464 wrote to memory of 2300	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	31
PID 2464 wrote to memory of 2300	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	31
PID 2464 wrote to memory of 2300	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	31
PID 2464 wrote to memory of 2920	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	33
PID 2464 wrote to memory of 2920	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	33
PID 2464 wrote to memory of 2920	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	33
PID 2464 wrote to memory of 2920	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	33
PID 2464 wrote to memory of 2864	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	35
PID 2464 wrote to memory of 2864	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	35
PID 2464 wrote to memory of 2864	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	35
PID 2464 wrote to memory of 2864	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	35
PID 2464 wrote to memory of 2672	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	37
PID 2464 wrote to memory of 2672	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	37
PID 2464 wrote to memory of 2672	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	37
PID 2464 wrote to memory of 2672	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	37
PID 2464 wrote to memory of 2816	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	39
PID 2464 wrote to memory of 2816	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	39
PID 2464 wrote to memory of 2816	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	39
PID 2464 wrote to memory of 2816	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	39
PID 2464 wrote to memory of 1312	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	42
PID 2464 wrote to memory of 1312	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	42
PID 2464 wrote to memory of 1312	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	42
PID 2464 wrote to memory of 1312	2464	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	42
PID 2784 wrote to memory of 2860	2784	ljtrrhqg.exe	44
PID 2784 wrote to memory of 2860	2784	ljtrrhqg.exe	44
PID 2784 wrote to memory of 2860	2784	ljtrrhqg.exe	44
PID 2784 wrote to memory of 2860	2784	ljtrrhqg.exe	44
PID 2784 wrote to memory of 2860	2784	ljtrrhqg.exe	44
PID 2784 wrote to memory of 2860	2784	ljtrrhqg.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\stdtyolj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ljtrrhqg.exe" C:\Windows\SysWOW64\stdtyolj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create stdtyolj binPath= "C:\Windows\SysWOW64\stdtyolj\ljtrrhqg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description stdtyolj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start stdtyolj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1312

C:\Windows\SysWOW64\stdtyolj\ljtrrhqg.exe
C:\Windows\SysWOW64\stdtyolj\ljtrrhqg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

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\ljtrrhqg.exe

Filesize
12.4MB

MD5
a0eedf6e86234726324d40f38c202803

SHA1
d76c7f9c5e09743086e22a7d1503735e96c61cad

SHA256
8a710b0387be0b77a83eb83722408ecb50737479607b0d89ed2e0e5aab82f0d3

SHA512
c2c842b4f4a0872ba1de5184cc30eb132a522219e7022856dd59d7d50f8c9c00051810cd8f1c8a1430aa6513d3dde42427de51193279784e31284518db942748

Download Submit
memory/2464-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2464-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2464-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2464-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2464-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2464-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2784-16-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2860-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads