tofsee | 9a6b44b5b8536a0cc1a4f7f996ca0ccf0524c591b382a0c1e6be630d172ad009

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 00:48

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General

Target

JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe
Size

14.2MB
MD5

80886a1c834f57b2fb57d166d1b31430
SHA1

fe991ee5b5ee0678b4be9bfbbe6bded33041dd2b
SHA256

9a6b44b5b8536a0cc1a4f7f996ca0ccf0524c591b382a0c1e6be630d172ad009
SHA512

4e74a405389201795953be1a2dd8ce399891060da079bd52d23eb7c1340b12b9c49385c4ee0866090558a41548f9383060d4891ef1b8a9b90a98e9e0e8b783dc
SSDEEP

6144:OM0Em6Qk5N3Sccccccccccccccccccccccccccccccccccccccccccccccccccc3:IEma

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.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\uyebjxwt = "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
2596	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\uyebjxwt\ImagePath = "C:\\Windows\\SysWOW64\\uyebjxwt\\tjpijrhq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2576	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	tjpijrhq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 2576	2660	tjpijrhq.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2776	sc.exe
2648	sc.exe
2712	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_80886a1c834f57b2fb57d166d1b31430.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tjpijrhq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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 1728 wrote to memory of 2816	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	30
PID 1728 wrote to memory of 2816	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	30
PID 1728 wrote to memory of 2816	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	30
PID 1728 wrote to memory of 2816	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	30
PID 1728 wrote to memory of 2140	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	32
PID 1728 wrote to memory of 2140	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	32
PID 1728 wrote to memory of 2140	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	32
PID 1728 wrote to memory of 2140	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	32
PID 1728 wrote to memory of 2776	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	34
PID 1728 wrote to memory of 2776	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	34
PID 1728 wrote to memory of 2776	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	34
PID 1728 wrote to memory of 2776	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	34
PID 1728 wrote to memory of 2648	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	36
PID 1728 wrote to memory of 2648	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	36
PID 1728 wrote to memory of 2648	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	36
PID 1728 wrote to memory of 2648	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	36
PID 1728 wrote to memory of 2712	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	38
PID 1728 wrote to memory of 2712	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	38
PID 1728 wrote to memory of 2712	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	38
PID 1728 wrote to memory of 2712	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	38
PID 2660 wrote to memory of 2576	2660	tjpijrhq.exe	41
PID 2660 wrote to memory of 2576	2660	tjpijrhq.exe	41
PID 2660 wrote to memory of 2576	2660	tjpijrhq.exe	41
PID 2660 wrote to memory of 2576	2660	tjpijrhq.exe	41
PID 2660 wrote to memory of 2576	2660	tjpijrhq.exe	41
PID 2660 wrote to memory of 2576	2660	tjpijrhq.exe	41
PID 1728 wrote to memory of 2596	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	42
PID 1728 wrote to memory of 2596	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	42
PID 1728 wrote to memory of 2596	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	42
PID 1728 wrote to memory of 2596	1728	JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uyebjxwt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tjpijrhq.exe" C:\Windows\SysWOW64\uyebjxwt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uyebjxwt binPath= "C:\Windows\SysWOW64\uyebjxwt\tjpijrhq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uyebjxwt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uyebjxwt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:2596

C:\Windows\SysWOW64\uyebjxwt\tjpijrhq.exe
C:\Windows\SysWOW64\uyebjxwt\tjpijrhq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_80886a1c834f57b2fb57d166d1b31430.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- 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:2576

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\tjpijrhq.exe

Filesize
13.0MB

MD5
2664008df56cd0449f9089d558e8f2ba

SHA1
a0802a524db366f0ec25917f8f4ac643b1637b6a

SHA256
03014be50880895b42fbed5cc402a7598038bf05823d957afe276e329799d8e0

SHA512
7290b4fbe279c8dc0d874a7b706c345d66d4a34df9fea77ff169d5549e1610914fb58235d0151e28ca228685c6514b38d1f0a4faa787fe17ad32669c0d6358eb

Download Submit
memory/1728-0-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1728-1-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1728-2-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1728-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2576-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-11-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads