tofsee | 7cdc6699ebba552973ec083185ad2f4fdb9b7c3917cc459f5e9013ca62a5b813

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 20:04

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General

Target

2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe
Size

11.5MB
MD5

91db8558eace068815dcf94fe9d7120d
SHA1

b74cc681cce044dca82a8c87fa5fee2f56a1157c
SHA256

7cdc6699ebba552973ec083185ad2f4fdb9b7c3917cc459f5e9013ca62a5b813
SHA512

2f2579188eebb85eea26334b8c1eb0ecc581846c61faeccf0e2132e4ad93627f423abf92dacfb16047c0a74535a09468582ba8563958a99e28d768365711d858
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/T:POMdRQr7OB0ypmMXnl8XEPM3noSWOCa

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\apnrhxgn = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2176	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\apnrhxgn\ImagePath = "C:\\Windows\\SysWOW64\\apnrhxgn\\tcwbtsnj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	tcwbtsnj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2828	2760	tcwbtsnj.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1256	sc.exe
2272	sc.exe
2820	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	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.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	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	tcwbtsnj.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 2280	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	30
PID 1576 wrote to memory of 2280	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	30
PID 1576 wrote to memory of 2280	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	30
PID 1576 wrote to memory of 2280	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	30
PID 1576 wrote to memory of 2200	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	32
PID 1576 wrote to memory of 2200	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	32
PID 1576 wrote to memory of 2200	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	32
PID 1576 wrote to memory of 2200	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	32
PID 1576 wrote to memory of 2272	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	34
PID 1576 wrote to memory of 2272	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	34
PID 1576 wrote to memory of 2272	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	34
PID 1576 wrote to memory of 2272	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	34
PID 1576 wrote to memory of 2820	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	36
PID 1576 wrote to memory of 2820	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	36
PID 1576 wrote to memory of 2820	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	36
PID 1576 wrote to memory of 2820	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	36
PID 1576 wrote to memory of 1256	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	38
PID 1576 wrote to memory of 1256	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	38
PID 1576 wrote to memory of 1256	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	38
PID 1576 wrote to memory of 1256	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	38
PID 2760 wrote to memory of 2828	2760	tcwbtsnj.exe	41
PID 2760 wrote to memory of 2828	2760	tcwbtsnj.exe	41
PID 2760 wrote to memory of 2828	2760	tcwbtsnj.exe	41
PID 2760 wrote to memory of 2828	2760	tcwbtsnj.exe	41
PID 2760 wrote to memory of 2828	2760	tcwbtsnj.exe	41
PID 2760 wrote to memory of 2828	2760	tcwbtsnj.exe	41
PID 1576 wrote to memory of 2176	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	43
PID 1576 wrote to memory of 2176	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	43
PID 1576 wrote to memory of 2176	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	43
PID 1576 wrote to memory of 2176	1576	2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\apnrhxgn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tcwbtsnj.exe" C:\Windows\SysWOW64\apnrhxgn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create apnrhxgn binPath= "C:\Windows\SysWOW64\apnrhxgn\tcwbtsnj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2272
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description apnrhxgn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start apnrhxgn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1256
- 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:2176

C:\Windows\SysWOW64\apnrhxgn\tcwbtsnj.exe
C:\Windows\SysWOW64\apnrhxgn\tcwbtsnj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_91db8558eace068815dcf94fe9d7120d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:2828

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\tcwbtsnj.exe

Filesize
11.3MB

MD5
ecb2495a59026138d05d4ebe23b34aca

SHA1
78e742bca3bdca3fffd9fced4a40601277712026

SHA256
fbb94795848a504cacaaa7623d6e65d6ecb9e8f587359e7c86bd8c549b3ffd1b

SHA512
d45e3a787f855a160c82885ca76ca6b985528927c745f8398a85121d4cdfbc2fc3bcb337efe07f668c594e5f04c3bd7b5ed5f714e7a47de41adb6d9db8af202c

Download Submit
memory/1576-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1576-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1576-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1576-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1576-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/1576-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2760-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2828-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads