tofsee | 372010d5c8c0252c2665102e9ae4afdde5b549ed877bc8c8c5989fdce0b57a0e

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 12:21

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General

Target

JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe
Size

12.6MB
MD5

e41b36781115c6d30f9a721299d9279d
SHA1

39644feb784bd5f90667c6d181acfbe6e5d2ef1d
SHA256

372010d5c8c0252c2665102e9ae4afdde5b549ed877bc8c8c5989fdce0b57a0e
SHA512

a5bc6a465114d043ef90173ad5d911ea910648ad7a317fa1a105dbf48d00d73228f8c33dbb09800c7294769e3db6030c992d28c19246c32de28efcacc87096b8
SSDEEP

393216:fH2222222222222222222222222222222222222222222222222222222222222u:v222222222222222222222222222222P

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\xxmurfeq = "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\xxmurfeq\ImagePath = "C:\\Windows\\SysWOW64\\xxmurfeq\\obnkdqvf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2168	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	obnkdqvf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2168	2712	obnkdqvf.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2432	sc.exe
2784	sc.exe
2816	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_e41b36781115c6d30f9a721299d9279d.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	obnkdqvf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2372	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	31
PID 2252 wrote to memory of 2372	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	31
PID 2252 wrote to memory of 2372	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	31
PID 2252 wrote to memory of 2372	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	31
PID 2252 wrote to memory of 3016	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	33
PID 2252 wrote to memory of 3016	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	33
PID 2252 wrote to memory of 3016	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	33
PID 2252 wrote to memory of 3016	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	33
PID 2252 wrote to memory of 2432	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	35
PID 2252 wrote to memory of 2432	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	35
PID 2252 wrote to memory of 2432	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	35
PID 2252 wrote to memory of 2432	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	35
PID 2252 wrote to memory of 2784	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	37
PID 2252 wrote to memory of 2784	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	37
PID 2252 wrote to memory of 2784	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	37
PID 2252 wrote to memory of 2784	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	37
PID 2252 wrote to memory of 2816	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	39
PID 2252 wrote to memory of 2816	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	39
PID 2252 wrote to memory of 2816	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	39
PID 2252 wrote to memory of 2816	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	39
PID 2712 wrote to memory of 2168	2712	obnkdqvf.exe	42
PID 2712 wrote to memory of 2168	2712	obnkdqvf.exe	42
PID 2712 wrote to memory of 2168	2712	obnkdqvf.exe	42
PID 2712 wrote to memory of 2168	2712	obnkdqvf.exe	42
PID 2712 wrote to memory of 2168	2712	obnkdqvf.exe	42
PID 2712 wrote to memory of 2168	2712	obnkdqvf.exe	42
PID 2252 wrote to memory of 2596	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	43
PID 2252 wrote to memory of 2596	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	43
PID 2252 wrote to memory of 2596	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	43
PID 2252 wrote to memory of 2596	2252	JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xxmurfeq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\obnkdqvf.exe" C:\Windows\SysWOW64\xxmurfeq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xxmurfeq binPath= "C:\Windows\SysWOW64\xxmurfeq\obnkdqvf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xxmurfeq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xxmurfeq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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\xxmurfeq\obnkdqvf.exe
C:\Windows\SysWOW64\xxmurfeq\obnkdqvf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e41b36781115c6d30f9a721299d9279d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2168

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\obnkdqvf.exe

Filesize
11.4MB

MD5
e1639ba8416ae36a99a659d78e58bed4

SHA1
c75ddac8a04812731d9aa75d052de01f0360bab2

SHA256
48c594bba94dbd9a9840ac4e4b069bc16555b4c24597f562c7bc4ffc79833919

SHA512
2debf14745e1fd916b0416c2c22763526e1c21c8c6f26d7cbd7e2f2a6fc0644896c22ed18845077fdd9ad5adea51036bfd77b3374943170e2719cdd7ad7d3b1c

Download Submit
memory/2168-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2168-8-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2168-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2168-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2168-18-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2252-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2252-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2252-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2252-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2252-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2252-14-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2712-12-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads