tofsee | 3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 18:15

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General

Target

JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe
Size

333KB
MD5

93085b8c3f03829fe5c2d7c2c63d8cf3
SHA1

cb2ced04dc921e9ad5668238b6b438e8705fd3e6
SHA256

3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c
SHA512

070c54fda3a741c508fe3224883a18a9f219d0c4d633497a0dab368d6cc74843e916f9af41c54531a3204941cb29c765aa3f00e69e60d974cbbc177a02f52043
SSDEEP

6144:BoFge0thkcRZhJOdKU1QrHpbSmI8WmL5B:OSvtOcRZXOdKU1qJbSmUg

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\leavjfva = "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
2848	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\leavjfva\ImagePath = "C:\\Windows\\SysWOW64\\leavjfva\\fbqqvciz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	fbqqvciz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 3008	2740	fbqqvciz.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1888	sc.exe
860	sc.exe
2832	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_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.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	fbqqvciz.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 2880	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	30
PID 1616 wrote to memory of 2880	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	30
PID 1616 wrote to memory of 2880	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	30
PID 1616 wrote to memory of 2880	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	30
PID 1616 wrote to memory of 1872	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	32
PID 1616 wrote to memory of 1872	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	32
PID 1616 wrote to memory of 1872	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	32
PID 1616 wrote to memory of 1872	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	32
PID 1616 wrote to memory of 1888	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	34
PID 1616 wrote to memory of 1888	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	34
PID 1616 wrote to memory of 1888	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	34
PID 1616 wrote to memory of 1888	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	34
PID 1616 wrote to memory of 860	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	37
PID 1616 wrote to memory of 860	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	37
PID 1616 wrote to memory of 860	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	37
PID 1616 wrote to memory of 860	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	37
PID 1616 wrote to memory of 2832	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	39
PID 1616 wrote to memory of 2832	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	39
PID 1616 wrote to memory of 2832	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	39
PID 1616 wrote to memory of 2832	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	39
PID 1616 wrote to memory of 2848	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	42
PID 1616 wrote to memory of 2848	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	42
PID 1616 wrote to memory of 2848	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	42
PID 1616 wrote to memory of 2848	1616	JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe	42
PID 2740 wrote to memory of 3008	2740	fbqqvciz.exe	44
PID 2740 wrote to memory of 3008	2740	fbqqvciz.exe	44
PID 2740 wrote to memory of 3008	2740	fbqqvciz.exe	44
PID 2740 wrote to memory of 3008	2740	fbqqvciz.exe	44
PID 2740 wrote to memory of 3008	2740	fbqqvciz.exe	44
PID 2740 wrote to memory of 3008	2740	fbqqvciz.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\leavjfva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fbqqvciz.exe" C:\Windows\SysWOW64\leavjfva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create leavjfva binPath= "C:\Windows\SysWOW64\leavjfva\fbqqvciz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description leavjfva "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start leavjfva
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- 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:2848

C:\Windows\SysWOW64\leavjfva\fbqqvciz.exe
C:\Windows\SysWOW64\leavjfva\fbqqvciz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e3590e27bfb3328e0d47c2c8de5c63b42ec4c397c845bd8e240bf67cb36585c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740
- 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:3008

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\fbqqvciz.exe

Filesize
14.6MB

MD5
2bff0d769ce6ed8c36dd74a4022aec34

SHA1
eecc4aa7dadd7a7f00579a0e429fc6100655a319

SHA256
70c962e5d295d5c640d3b79fb890aea4461e7d2140f26028f0cc1b0c9461b79f

SHA512
ff5332ecb9fe55b7f2f49ccb9ebbef6863e34ea8f22cb73621053bfe64feb98cdf88b72fc2d08a2a08e1a772bddf7146a0c13fca77afe397c00ab442d1ccff17

Download Submit
memory/1616-8-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/1616-4-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/1616-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1616-10-0x0000000002C00000-0x0000000002D00000-memory.dmp

Filesize
1024KB

Download
memory/1616-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1616-1-0x0000000002C00000-0x0000000002D00000-memory.dmp

Filesize
1024KB

Download
memory/2740-16-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/3008-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3008-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads