tofsee | f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6

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
30-12-2024 06:18

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General

Target

JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe
Size

328KB
MD5

72be89fc9c2bd735f9b40d82ac5d3bb2
SHA1

c65548b1d08b08a4d8c1715bb409d7aa22e46ec9
SHA256

f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6
SHA512

e89142b74bcde35d67625d634b51bb1e89abfbb206c648d880909b8ed1fb0c2fe077e2bc716510dc7b4c66023bcc18d01a815db16af7ca41d772d8b6bb54d936
SSDEEP

6144:ec1WtXis27paIC6bNAJIZMVfwozbBbnS32KtD+gxGPY7EL7R:enZkMDF1bnS32KtNxUga

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\ljqjltsi = "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
2268	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\ljqjltsi\ImagePath = "C:\\Windows\\SysWOW64\\ljqjltsi\\vnfmlcnu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2952	vnfmlcnu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2952 set thread context of 2772	2952	vnfmlcnu.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2800	sc.exe
2712	sc.exe
2860	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_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.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	vnfmlcnu.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2544	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	30
PID 3012 wrote to memory of 2544	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	30
PID 3012 wrote to memory of 2544	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	30
PID 3012 wrote to memory of 2544	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	30
PID 3012 wrote to memory of 3048	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	32
PID 3012 wrote to memory of 3048	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	32
PID 3012 wrote to memory of 3048	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	32
PID 3012 wrote to memory of 3048	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	32
PID 3012 wrote to memory of 2800	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	34
PID 3012 wrote to memory of 2800	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	34
PID 3012 wrote to memory of 2800	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	34
PID 3012 wrote to memory of 2800	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	34
PID 3012 wrote to memory of 2712	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	36
PID 3012 wrote to memory of 2712	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	36
PID 3012 wrote to memory of 2712	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	36
PID 3012 wrote to memory of 2712	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	36
PID 3012 wrote to memory of 2860	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	38
PID 3012 wrote to memory of 2860	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	38
PID 3012 wrote to memory of 2860	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	38
PID 3012 wrote to memory of 2860	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	38
PID 3012 wrote to memory of 2268	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	41
PID 3012 wrote to memory of 2268	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	41
PID 3012 wrote to memory of 2268	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	41
PID 3012 wrote to memory of 2268	3012	JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe	41
PID 2952 wrote to memory of 2772	2952	vnfmlcnu.exe	44
PID 2952 wrote to memory of 2772	2952	vnfmlcnu.exe	44
PID 2952 wrote to memory of 2772	2952	vnfmlcnu.exe	44
PID 2952 wrote to memory of 2772	2952	vnfmlcnu.exe	44
PID 2952 wrote to memory of 2772	2952	vnfmlcnu.exe	44
PID 2952 wrote to memory of 2772	2952	vnfmlcnu.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ljqjltsi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vnfmlcnu.exe" C:\Windows\SysWOW64\ljqjltsi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ljqjltsi binPath= "C:\Windows\SysWOW64\ljqjltsi\vnfmlcnu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ljqjltsi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ljqjltsi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- 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:2268

C:\Windows\SysWOW64\ljqjltsi\vnfmlcnu.exe
C:\Windows\SysWOW64\ljqjltsi\vnfmlcnu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5e8eb630af68376b3852ca12581990d0786053b607fc457f3a95d2b8a2d9ee6.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2952
- 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:2772

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\vnfmlcnu.exe

Filesize
14.0MB

MD5
294e8ab47192a61e861fc6fc9dfdea0e

SHA1
3e53dec2a44b866a0cd5c7018142044cbdfa6b5d

SHA256
affc34e6589075591cd60924b046ab1007de6b64cf3d56c53e82802d2aae8be3

SHA512
348be4228c25a16a194ff968db01bd855a74b9a8c3641d597eea24fe26165afe58bc77b051b2f760b0f7b495de71ca9054415b5ab874565692a1fbb5a96b601b

Download Submit
memory/2772-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2952-15-0x0000000000400000-0x0000000002779000-memory.dmp

Filesize
35.5MB

Download
memory/3012-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-2-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/3012-8-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/3012-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-7-0x0000000000400000-0x0000000002779000-memory.dmp

Filesize
35.5MB

Download
memory/3012-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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