tofsee | 67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 17:11

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General

Target

JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe
Size

288KB
MD5

fa140d14a8896282316dc78dbfcece18
SHA1

65faf3fdf5ced2d784ed8d0453ac6468052b0f86
SHA256

67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5
SHA512

a32f7cb80a0219defee861b6c010351c9a590dde67cb7a4db99990013510dbf134f974c1671f8d6e8ec7bc31fd3fdc24eb09e836465b6d39faa51aad6430b65b
SSDEEP

6144:ffO5YfmEAp6M/CPyIkmZ+uYuvEeZS5df:3O5Yf2fCPyIhZ+uUWSf

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\zjgvtmsu = "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
2904	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\zjgvtmsu\ImagePath = "C:\\Windows\\SysWOW64\\zjgvtmsu\\kuzmtonc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	kuzmtonc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2880	2876	kuzmtonc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2592	sc.exe
2316	sc.exe
2728	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	kuzmtonc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 3004	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	30
PID 2364 wrote to memory of 3004	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	30
PID 2364 wrote to memory of 3004	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	30
PID 2364 wrote to memory of 3004	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	30
PID 2364 wrote to memory of 1212	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	32
PID 2364 wrote to memory of 1212	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	32
PID 2364 wrote to memory of 1212	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	32
PID 2364 wrote to memory of 1212	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	32
PID 2364 wrote to memory of 2592	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	34
PID 2364 wrote to memory of 2592	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	34
PID 2364 wrote to memory of 2592	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	34
PID 2364 wrote to memory of 2592	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	34
PID 2364 wrote to memory of 2316	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	36
PID 2364 wrote to memory of 2316	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	36
PID 2364 wrote to memory of 2316	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	36
PID 2364 wrote to memory of 2316	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	36
PID 2364 wrote to memory of 2728	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	38
PID 2364 wrote to memory of 2728	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	38
PID 2364 wrote to memory of 2728	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	38
PID 2364 wrote to memory of 2728	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	38
PID 2364 wrote to memory of 2904	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	41
PID 2364 wrote to memory of 2904	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	41
PID 2364 wrote to memory of 2904	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	41
PID 2364 wrote to memory of 2904	2364	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	41
PID 2876 wrote to memory of 2880	2876	kuzmtonc.exe	43
PID 2876 wrote to memory of 2880	2876	kuzmtonc.exe	43
PID 2876 wrote to memory of 2880	2876	kuzmtonc.exe	43
PID 2876 wrote to memory of 2880	2876	kuzmtonc.exe	43
PID 2876 wrote to memory of 2880	2876	kuzmtonc.exe	43
PID 2876 wrote to memory of 2880	2876	kuzmtonc.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zjgvtmsu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kuzmtonc.exe" C:\Windows\SysWOW64\zjgvtmsu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zjgvtmsu binPath= "C:\Windows\SysWOW64\zjgvtmsu\kuzmtonc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zjgvtmsu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zjgvtmsu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- 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:2904

C:\Windows\SysWOW64\zjgvtmsu\kuzmtonc.exe
C:\Windows\SysWOW64\zjgvtmsu\kuzmtonc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:2880

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\kuzmtonc.exe

Filesize
12.1MB

MD5
5659ecaa9814f122dde55e49acca768b

SHA1
5fb6290b31be70b1fa27895cc7193a9b7ab9ba5a

SHA256
8ec4130a8b3bb762b7b9978b69587814ed52c8b37fadc1181d0feea7d83508e0

SHA512
9781fe8458055445cc93499162c24cfb6f9e43b656e6e6d4c8707aee1e071dcae28ac85c6a866658183dff46e53c076426c36067dcdbcf5ad0db9c13fb9a4bab

Download Submit
memory/2364-7-0x0000000000400000-0x0000000002B3F000-memory.dmp

Filesize
39.2MB

Download
memory/2364-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2364-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2364-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2876-16-0x0000000000400000-0x0000000002B3F000-memory.dmp

Filesize
39.2MB

Download
memory/2880-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2880-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2880-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2880-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads