tofsee | 8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b

Analysis

max time kernel
145s
max time network
144s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 11:30

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General

Target

JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe
Size

306KB
MD5

893de434c901ce75a2967c8a55c51754
SHA1

eda71f67e843aac6fa4d9328ad4c75cb7515b91b
SHA256

8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b
SHA512

9a7b7746aa1b377f5e5314344ddc8c0ff827c5f37fe0f99df55da078f965e68d4099db959097fa7ce456176be496b749d8fce42df847fa95e0c5f7f927db4c54
SSDEEP

6144:j7j7AupjIIwH5OalEVFvlmfDR2Cnsx2qPu:D0upjIIe5EVOfD9M2

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\tgjewrcg = "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
2908	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\tgjewrcg\ImagePath = "C:\\Windows\\SysWOW64\\tgjewrcg\\jqtrssiw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3040	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	jqtrssiw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 3040	2836	jqtrssiw.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1032	sc.exe
2392	sc.exe
2332	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	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.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	jqtrssiw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2476	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	30
PID 2176 wrote to memory of 2476	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	30
PID 2176 wrote to memory of 2476	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	30
PID 2176 wrote to memory of 2476	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	30
PID 2176 wrote to memory of 2640	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	32
PID 2176 wrote to memory of 2640	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	32
PID 2176 wrote to memory of 2640	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	32
PID 2176 wrote to memory of 2640	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	32
PID 2176 wrote to memory of 2392	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	34
PID 2176 wrote to memory of 2392	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	34
PID 2176 wrote to memory of 2392	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	34
PID 2176 wrote to memory of 2392	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	34
PID 2176 wrote to memory of 2332	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	36
PID 2176 wrote to memory of 2332	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	36
PID 2176 wrote to memory of 2332	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	36
PID 2176 wrote to memory of 2332	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	36
PID 2176 wrote to memory of 1032	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	38
PID 2176 wrote to memory of 1032	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	38
PID 2176 wrote to memory of 1032	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	38
PID 2176 wrote to memory of 1032	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	38
PID 2176 wrote to memory of 2908	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	41
PID 2176 wrote to memory of 2908	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	41
PID 2176 wrote to memory of 2908	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	41
PID 2176 wrote to memory of 2908	2176	JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe	41
PID 2836 wrote to memory of 3040	2836	jqtrssiw.exe	43
PID 2836 wrote to memory of 3040	2836	jqtrssiw.exe	43
PID 2836 wrote to memory of 3040	2836	jqtrssiw.exe	43
PID 2836 wrote to memory of 3040	2836	jqtrssiw.exe	43
PID 2836 wrote to memory of 3040	2836	jqtrssiw.exe	43
PID 2836 wrote to memory of 3040	2836	jqtrssiw.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tgjewrcg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jqtrssiw.exe" C:\Windows\SysWOW64\tgjewrcg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tgjewrcg binPath= "C:\Windows\SysWOW64\tgjewrcg\jqtrssiw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tgjewrcg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tgjewrcg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1032
- 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:2908

C:\Windows\SysWOW64\tgjewrcg\jqtrssiw.exe
C:\Windows\SysWOW64\tgjewrcg\jqtrssiw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fdfff633ead54bc00629d8fe23693b7d7b6f888a3142351a27d2e8f2720d41b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- 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:3040

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\jqtrssiw.exe

Filesize
13.2MB

MD5
3fc5df1ed6a084ed09cc7d05d2aad92f

SHA1
b4554562c8177c175bf6c374a6ebf82422093986

SHA256
be2024ecae0700ae034a6f975e9b2961bb7882cb9698d9e618af9004c0e08310

SHA512
5d0fd196dcadbc433c06730dd8321a2e123c22920ae63fd2456849840d6b52ea27cded5f75766306e5af2728a6099a0e24a43479f25c316b806ccd17327f0a61

Download Submit
memory/2176-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2176-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2176-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2176-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2176-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2176-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2836-15-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/3040-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3040-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3040-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3040-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3040-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads