tofsee | 9fc0dbdf5dccc389e47958cb38df30d6690ee4e06e8deec63ead62ddb273776f

Analysis

max time kernel
149s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:08

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General

Target

2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe
Size

11.2MB
MD5

4395d1bbc05ca36dccb62e2484276394
SHA1

2528c32df15e7d76e77bf836a6c4e76511bcfa9b
SHA256

9fc0dbdf5dccc389e47958cb38df30d6690ee4e06e8deec63ead62ddb273776f
SHA512

f8b4b76eda8a1d9f1c1e6bb0b4ba7098e0183165489e97ffe980496c6bcb833cb93e39a7e0eb33dece0e3709843784be1841c987a4c5c4df042caf523a30b694
SSDEEP

24576:sEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZT:pfot

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\tzqxkldn = "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
2952	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\tzqxkldn\ImagePath = "C:\\Windows\\SysWOW64\\tzqxkldn\\awoolazn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2172	awoolazn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2172 set thread context of 2944	2172	awoolazn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2912	sc.exe
3012	sc.exe
2936	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	cmd.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	awoolazn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.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 816 wrote to memory of 2472	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	30
PID 816 wrote to memory of 2472	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	30
PID 816 wrote to memory of 2472	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	30
PID 816 wrote to memory of 2472	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	30
PID 816 wrote to memory of 2872	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	32
PID 816 wrote to memory of 2872	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	32
PID 816 wrote to memory of 2872	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	32
PID 816 wrote to memory of 2872	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	32
PID 816 wrote to memory of 3012	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	34
PID 816 wrote to memory of 3012	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	34
PID 816 wrote to memory of 3012	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	34
PID 816 wrote to memory of 3012	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	34
PID 816 wrote to memory of 2936	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	36
PID 816 wrote to memory of 2936	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	36
PID 816 wrote to memory of 2936	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	36
PID 816 wrote to memory of 2936	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	36
PID 816 wrote to memory of 2912	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	38
PID 816 wrote to memory of 2912	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	38
PID 816 wrote to memory of 2912	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	38
PID 816 wrote to memory of 2912	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	38
PID 816 wrote to memory of 2952	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	40
PID 816 wrote to memory of 2952	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	40
PID 816 wrote to memory of 2952	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	40
PID 816 wrote to memory of 2952	816	2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe	40
PID 2172 wrote to memory of 2944	2172	awoolazn.exe	43
PID 2172 wrote to memory of 2944	2172	awoolazn.exe	43
PID 2172 wrote to memory of 2944	2172	awoolazn.exe	43
PID 2172 wrote to memory of 2944	2172	awoolazn.exe	43
PID 2172 wrote to memory of 2944	2172	awoolazn.exe	43
PID 2172 wrote to memory of 2944	2172	awoolazn.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tzqxkldn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\awoolazn.exe" C:\Windows\SysWOW64\tzqxkldn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tzqxkldn binPath= "C:\Windows\SysWOW64\tzqxkldn\awoolazn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tzqxkldn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tzqxkldn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2912
- 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:2952

C:\Windows\SysWOW64\tzqxkldn\awoolazn.exe
C:\Windows\SysWOW64\tzqxkldn\awoolazn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4395d1bbc05ca36dccb62e2484276394_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- 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:2944

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\awoolazn.exe

Filesize
14.9MB

MD5
8e00356acd72f8be44ca47bb7fb33dee

SHA1
a4ab4f0a997e9ea3c93e2c93d16220d994bb1f13

SHA256
f36efa8d99090d42728cc2b24cfffc81f2231d7345fc43726943e8311a67ec85

SHA512
5a13bf404c4d799ba607553297aa53ac20c9082fc5833df945c15ee3246891e89a7e9598837518701935da89c72bb9c61168d82e47885c6276d944663a3aae9b

Download Submit
memory/816-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/816-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/816-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/816-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/816-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/816-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2172-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2944-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2944-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2944-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2944-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads