tofsee | 25b5562d7367c5d6b3ba1e972f7dc163d8a420f828f517f6f7d12eb0ba503605

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 17:54

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General

Target

JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe
Size

14.7MB
MD5

ea6b8a444ac84e9af4e879ce16c37ff2
SHA1

8aa368fbb8702c4e23e0ea8066efb4b4f6ab93c0
SHA256

25b5562d7367c5d6b3ba1e972f7dc163d8a420f828f517f6f7d12eb0ba503605
SHA512

dff566b5e453b332388c0657de12cec1d0da88dd48542825e8bb3ee340176b91bc662451a622349e16d1b20f0eb1b23d7681185d9e6556e790f5b6c975d1fd48
SSDEEP

12288:iz+wSUpBMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMU:iz8

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\nwppombi = "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
536	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\nwppombi\ImagePath = "C:\\Windows\\SysWOW64\\nwppombi\\jskjseiz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	jskjseiz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2088	2808	jskjseiz.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2428	sc.exe
2980	sc.exe
2680	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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_ea6b8a444ac84e9af4e879ce16c37ff2.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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jskjseiz.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 352 wrote to memory of 1660	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	30
PID 352 wrote to memory of 1660	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	30
PID 352 wrote to memory of 1660	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	30
PID 352 wrote to memory of 1660	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	30
PID 352 wrote to memory of 1872	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	32
PID 352 wrote to memory of 1872	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	32
PID 352 wrote to memory of 1872	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	32
PID 352 wrote to memory of 1872	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	32
PID 352 wrote to memory of 2428	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	34
PID 352 wrote to memory of 2428	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	34
PID 352 wrote to memory of 2428	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	34
PID 352 wrote to memory of 2428	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	34
PID 352 wrote to memory of 2980	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	36
PID 352 wrote to memory of 2980	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	36
PID 352 wrote to memory of 2980	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	36
PID 352 wrote to memory of 2980	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	36
PID 352 wrote to memory of 2680	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	38
PID 352 wrote to memory of 2680	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	38
PID 352 wrote to memory of 2680	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	38
PID 352 wrote to memory of 2680	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	38
PID 2808 wrote to memory of 2088	2808	jskjseiz.exe	41
PID 2808 wrote to memory of 2088	2808	jskjseiz.exe	41
PID 2808 wrote to memory of 2088	2808	jskjseiz.exe	41
PID 2808 wrote to memory of 2088	2808	jskjseiz.exe	41
PID 2808 wrote to memory of 2088	2808	jskjseiz.exe	41
PID 2808 wrote to memory of 2088	2808	jskjseiz.exe	41
PID 352 wrote to memory of 536	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	42
PID 352 wrote to memory of 536	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	42
PID 352 wrote to memory of 536	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	42
PID 352 wrote to memory of 536	352	JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nwppombi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jskjseiz.exe" C:\Windows\SysWOW64\nwppombi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nwppombi binPath= "C:\Windows\SysWOW64\nwppombi\jskjseiz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nwppombi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nwppombi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- 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:536

C:\Windows\SysWOW64\nwppombi\jskjseiz.exe
C:\Windows\SysWOW64\nwppombi\jskjseiz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea6b8a444ac84e9af4e879ce16c37ff2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2088

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\jskjseiz.exe

Filesize
10.4MB

MD5
b24e6680a6cca982d581b8ea5342069a

SHA1
d2c0b2f1539f5b01ee3ffd49a93764589b203f65

SHA256
98eeaf5f48106b9051ef8bfd47490ef93d041c68e8d170fd5cff1e659c779e7d

SHA512
f0b0ab8cae4600fc5bfa58f65d70b6e640747c11218d12677fe9d5b1f156ed7ee2e194a88558909ec3ac4cd6f2929a9b5519dff99e4f58b50ae75f1f56d42476

Download Submit
memory/352-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/352-2-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/352-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/352-1-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/352-16-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/352-17-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/2088-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2088-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2088-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2088-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2088-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-13-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2808-14-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/2808-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads