tofsee | 3719b22484738b1865755c8a80459d44eb391314565f8b5b568e8b6727d7d97a

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 00:51

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General

Target

fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe
Size

10.5MB
MD5

fb337e8710c169d08e14cd2a49e016b8
SHA1

948e1a44363e35a282d0cc14ad336529b8057af9
SHA256

3719b22484738b1865755c8a80459d44eb391314565f8b5b568e8b6727d7d97a
SHA512

c85ef668e4357668c100d6e3a69b2c088a24de2e04c05a98031c4fb638a265d01142b2981d3bc777eebea4f205e66b7fd3352dcbf0e73d3a6bfe7c37750a53b5
SSDEEP

196608:xV8888888888888888888888888888888888888888888888888888888888888Y:b888888888888888888888888888888j

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

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\hzujqbve = "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
2720	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\hzujqbve\ImagePath = "C:\\Windows\\SysWOW64\\hzujqbve\\fkgywzl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3020	fkgywzl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2620	3020	fkgywzl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2140	sc.exe
1712	sc.exe
2836	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fkgywzl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.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 1184 wrote to memory of 2548	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2548	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2548	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2548	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2516	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	32
PID 1184 wrote to memory of 2516	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	32
PID 1184 wrote to memory of 2516	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	32
PID 1184 wrote to memory of 2516	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	32
PID 1184 wrote to memory of 2140	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	34
PID 1184 wrote to memory of 2140	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	34
PID 1184 wrote to memory of 2140	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	34
PID 1184 wrote to memory of 2140	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	34
PID 1184 wrote to memory of 1712	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	36
PID 1184 wrote to memory of 1712	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	36
PID 1184 wrote to memory of 1712	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	36
PID 1184 wrote to memory of 1712	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	36
PID 1184 wrote to memory of 2836	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	38
PID 1184 wrote to memory of 2836	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	38
PID 1184 wrote to memory of 2836	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	38
PID 1184 wrote to memory of 2836	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	38
PID 1184 wrote to memory of 2720	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	41
PID 1184 wrote to memory of 2720	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	41
PID 1184 wrote to memory of 2720	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	41
PID 1184 wrote to memory of 2720	1184	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	41
PID 3020 wrote to memory of 2620	3020	fkgywzl.exe	43
PID 3020 wrote to memory of 2620	3020	fkgywzl.exe	43
PID 3020 wrote to memory of 2620	3020	fkgywzl.exe	43
PID 3020 wrote to memory of 2620	3020	fkgywzl.exe	43
PID 3020 wrote to memory of 2620	3020	fkgywzl.exe	43
PID 3020 wrote to memory of 2620	3020	fkgywzl.exe	43

C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hzujqbve\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fkgywzl.exe" C:\Windows\SysWOW64\hzujqbve\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hzujqbve binPath= "C:\Windows\SysWOW64\hzujqbve\fkgywzl.exe /d\"C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hzujqbve "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hzujqbve
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- 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:2720

C:\Windows\SysWOW64\hzujqbve\fkgywzl.exe
C:\Windows\SysWOW64\hzujqbve\fkgywzl.exe /d"C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020
- 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:2620

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\fkgywzl.exe

Filesize
10.8MB

MD5
4d7db47c359454fddc6ff40232d8499b

SHA1
a5e6fbca4b49defe4b80742aff85b0584f7e4ea3

SHA256
1c965853af0c049a323329049cfe053b858e183cb4abb77d546bfbb749958206

SHA512
3158ac6697205126db8728f13b3804635be3f4ac4dbab65e9ab01c115bc37307124d8c7c12138a4b8d9b5f2fe2b3d4265e8f1154ccaf9191c4c36eec57d876b7

Download Submit
memory/1184-8-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1184-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1184-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/1184-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1184-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1184-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2620-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3020-17-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads