tofsee | 6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 17:03

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General

Target

JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe
Size

248KB
MD5

08e886dbf2ad5dd30be2f1f9074e8fb9
SHA1

3289e1f267778f5ee4cc6497950ca91774a02958
SHA256

6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64
SHA512

ca66fe3b0a08c266ed62cde167227cfa326494d14b2094536c8bf0898be7aa5e81b7523c6503529cbaae3ab7cfde31cb2caf85e273626649dad58c7949cfc1c2
SSDEEP

3072:zy013VbzDdITSNw8eLATjcHTkDYTlrjQBK+WrxpzbgqruXhs7sxkgaBChU/pZa9U:e0bzDJAEvs6MCK+uzbgwu6QigabwVf

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\zenpaqks = "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
2572	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\zenpaqks\ImagePath = "C:\\Windows\\SysWOW64\\zenpaqks\\cumtsjub.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2404	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1296	cumtsjub.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1296 set thread context of 2404	1296	cumtsjub.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2692	sc.exe
2772	sc.exe
2920	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_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.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
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cumtsjub.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2776	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	30
PID 2668 wrote to memory of 2776	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	30
PID 2668 wrote to memory of 2776	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	30
PID 2668 wrote to memory of 2776	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	30
PID 2668 wrote to memory of 2720	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	32
PID 2668 wrote to memory of 2720	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	32
PID 2668 wrote to memory of 2720	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	32
PID 2668 wrote to memory of 2720	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	32
PID 2668 wrote to memory of 2692	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	34
PID 2668 wrote to memory of 2692	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	34
PID 2668 wrote to memory of 2692	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	34
PID 2668 wrote to memory of 2692	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	34
PID 2668 wrote to memory of 2772	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	36
PID 2668 wrote to memory of 2772	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	36
PID 2668 wrote to memory of 2772	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	36
PID 2668 wrote to memory of 2772	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	36
PID 2668 wrote to memory of 2920	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	38
PID 2668 wrote to memory of 2920	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	38
PID 2668 wrote to memory of 2920	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	38
PID 2668 wrote to memory of 2920	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	38
PID 2668 wrote to memory of 2572	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	41
PID 2668 wrote to memory of 2572	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	41
PID 2668 wrote to memory of 2572	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	41
PID 2668 wrote to memory of 2572	2668	JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe	41
PID 1296 wrote to memory of 2404	1296	cumtsjub.exe	43
PID 1296 wrote to memory of 2404	1296	cumtsjub.exe	43
PID 1296 wrote to memory of 2404	1296	cumtsjub.exe	43
PID 1296 wrote to memory of 2404	1296	cumtsjub.exe	43
PID 1296 wrote to memory of 2404	1296	cumtsjub.exe	43
PID 1296 wrote to memory of 2404	1296	cumtsjub.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zenpaqks\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cumtsjub.exe" C:\Windows\SysWOW64\zenpaqks\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zenpaqks binPath= "C:\Windows\SysWOW64\zenpaqks\cumtsjub.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zenpaqks "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zenpaqks
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- 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:2572

C:\Windows\SysWOW64\zenpaqks\cumtsjub.exe
C:\Windows\SysWOW64\zenpaqks\cumtsjub.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efa37fbe1d2b36377422a2bda7ad818ed27eacbae4143ce43074a9ae37dbc64.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1296
- 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:2404

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\cumtsjub.exe

Filesize
13.3MB

MD5
560307d32e9d2ed1053c185e28a0e0a8

SHA1
98fb0440dd4295be44c2052917374ab629f8e1be

SHA256
c995f438ba206c1db30778ad63477b18365d5946ce4e11e2d270995b8b5e068f

SHA512
d8ebe90b636202f70f33cf33c6c0563deb0aa9929f9d13ae3a0841266f402de4da5207fc629dd1bae65e47f41d22b8353d53487bc3ab9ed9c228762512b72ad9

Download Submit
memory/1296-16-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2404-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2404-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2404-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2404-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2404-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2668-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2668-6-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2668-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2668-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2668-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2668-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2668-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads