tofsee | f993bfec5e0f7dd1be181f7175216c8d26e44abd70f4e4b2bfb87cd09eec6d38

Analysis

max time kernel
147s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-01-2025 18:55

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General

Target

2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe
Size

10.4MB
MD5

4cf474253898fc3a91d8ec57036f89ba
SHA1

b5de92102717aa551166a5f5c13bf25ff868044e
SHA256

f993bfec5e0f7dd1be181f7175216c8d26e44abd70f4e4b2bfb87cd09eec6d38
SHA512

0f0116a7d75955d9194fb9032a70122f0ab0487b2c56e4321dde7057dcf5763c21e675985be80e986dffd21e5b24b515739ca440510be4710793abcba8f76c57
SSDEEP

24576:opomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt3:Eoo

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\wzblzjvn = "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
2756	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\wzblzjvn\ImagePath = "C:\\Windows\\SysWOW64\\wzblzjvn\\qslwdlzp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	qslwdlzp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2736	2772	qslwdlzp.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2136	sc.exe
2752	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qslwdlzp.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2864	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	29
PID 2304 wrote to memory of 2864	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	29
PID 2304 wrote to memory of 2864	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	29
PID 2304 wrote to memory of 2864	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	29
PID 2304 wrote to memory of 2096	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	31
PID 2304 wrote to memory of 2096	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	31
PID 2304 wrote to memory of 2096	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	31
PID 2304 wrote to memory of 2096	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	31
PID 2304 wrote to memory of 2848	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	33
PID 2304 wrote to memory of 2136	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	35
PID 2304 wrote to memory of 2752	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	37
PID 2304 wrote to memory of 2752	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	37
PID 2304 wrote to memory of 2752	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	37
PID 2304 wrote to memory of 2752	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	37
PID 2304 wrote to memory of 2756	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	39
PID 2304 wrote to memory of 2756	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	39
PID 2304 wrote to memory of 2756	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	39
PID 2304 wrote to memory of 2756	2304	2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe	39
PID 2772 wrote to memory of 2736	2772	qslwdlzp.exe	42
PID 2772 wrote to memory of 2736	2772	qslwdlzp.exe	42
PID 2772 wrote to memory of 2736	2772	qslwdlzp.exe	42
PID 2772 wrote to memory of 2736	2772	qslwdlzp.exe	42
PID 2772 wrote to memory of 2736	2772	qslwdlzp.exe	42
PID 2772 wrote to memory of 2736	2772	qslwdlzp.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wzblzjvn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qslwdlzp.exe" C:\Windows\SysWOW64\wzblzjvn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wzblzjvn binPath= "C:\Windows\SysWOW64\wzblzjvn\qslwdlzp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wzblzjvn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wzblzjvn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- 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:2756

C:\Windows\SysWOW64\wzblzjvn\qslwdlzp.exe
C:\Windows\SysWOW64\wzblzjvn\qslwdlzp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-17_4cf474253898fc3a91d8ec57036f89ba_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2736

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\qslwdlzp.exe

Filesize
10.2MB

MD5
415c42047d13dac71a34ff0f9eaec135

SHA1
a1fff3cd938163b35d2e8fe7c09667e2f2f79124

SHA256
5340f8ccb1f19c52fec116998766e8ad41117eb4787a80029ebb16336639c838

SHA512
a9497cbcc9c461c42356edcf09d2d64de53ac34b7dd3dae1270b54636c5947dd3527c6f6cabcbc952d19871a993eb46f5463bb931796b8953d0d29ba36ae0d12

Download Submit
memory/2304-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2304-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2304-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2304-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2736-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads