tofsee | 8caac91256b008f7fd8f54b5fb20a9d425cd204a1772649e3c27f0b2ddf02b1d

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
19-01-2025 20:13

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General

Target

2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe
Size

14.1MB
MD5

7e4b71ad5aa7360eaf52f6853f0eb978
SHA1

26572ee9d0bce30bd72b83c6982572ea9291a71c
SHA256

8caac91256b008f7fd8f54b5fb20a9d425cd204a1772649e3c27f0b2ddf02b1d
SHA512

4ce1cc015d8dbc6bc4d3cb2c95756e5ebf45b06315bf39fa50405e7b25ed2172b417c8d059079b22eb3c0d5959e5e77aaab8df201486b2c7578caebe77e11684
SSDEEP

6144:wLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ4:lTYe+D2jFu+iZoUFhAz

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\pwpyxosk = "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\pwpyxosk\ImagePath = "C:\\Windows\\SysWOW64\\pwpyxosk\\fdmnwshd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2064	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	fdmnwshd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 2064	2912	fdmnwshd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2504	sc.exe
2792	sc.exe
2700	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	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	fdmnwshd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2884	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	30
PID 1600 wrote to memory of 2884	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	30
PID 1600 wrote to memory of 2884	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	30
PID 1600 wrote to memory of 2884	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	30
PID 1600 wrote to memory of 2800	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	32
PID 1600 wrote to memory of 2800	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	32
PID 1600 wrote to memory of 2800	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	32
PID 1600 wrote to memory of 2800	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	32
PID 1600 wrote to memory of 2792	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	34
PID 1600 wrote to memory of 2792	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	34
PID 1600 wrote to memory of 2792	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	34
PID 1600 wrote to memory of 2792	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	34
PID 1600 wrote to memory of 2700	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	36
PID 1600 wrote to memory of 2700	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	36
PID 1600 wrote to memory of 2700	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	36
PID 1600 wrote to memory of 2700	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	36
PID 1600 wrote to memory of 2504	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	38
PID 1600 wrote to memory of 2504	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	38
PID 1600 wrote to memory of 2504	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	38
PID 1600 wrote to memory of 2504	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	38
PID 1600 wrote to memory of 2904	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	41
PID 1600 wrote to memory of 2904	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	41
PID 1600 wrote to memory of 2904	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	41
PID 1600 wrote to memory of 2904	1600	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	41
PID 2912 wrote to memory of 2064	2912	fdmnwshd.exe	43
PID 2912 wrote to memory of 2064	2912	fdmnwshd.exe	43
PID 2912 wrote to memory of 2064	2912	fdmnwshd.exe	43
PID 2912 wrote to memory of 2064	2912	fdmnwshd.exe	43
PID 2912 wrote to memory of 2064	2912	fdmnwshd.exe	43
PID 2912 wrote to memory of 2064	2912	fdmnwshd.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pwpyxosk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fdmnwshd.exe" C:\Windows\SysWOW64\pwpyxosk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pwpyxosk binPath= "C:\Windows\SysWOW64\pwpyxosk\fdmnwshd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pwpyxosk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pwpyxosk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2504
- 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\pwpyxosk\fdmnwshd.exe
C:\Windows\SysWOW64\pwpyxosk\fdmnwshd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- 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:2064

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\fdmnwshd.exe

Filesize
13.6MB

MD5
eb5c85e3ef72cd8a17d66ee635dec743

SHA1
4fc6d0b7936828d347ceaf1cbcfc174654f291ee

SHA256
ac022f3e67da3d10f336e52afd6ea6b084c0f9b61d0de228f7b2e23c1d6df473

SHA512
940a33d0e68c6420f1ebb36c194a8bcf0a625fe75629e01bbf30471b44b7d6f43a2349d91d31c06fca52a707559ecd1e01af311be876f5be9f12b2b2cba9bd75

Download Submit
memory/1600-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1600-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1600-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/1600-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1600-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1600-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2064-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2064-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2064-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2064-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2064-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2064-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads