tofsee | cc8125d8df82f9a50e6dbb64c79ca62280c1c54e34d49be178d79547ee78e832

General

Target

2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe
Size

13.8MB
MD5

fd6a280e5fff87a9f918e9ef3d084213
SHA1

ba66a7db8fd8907d793460708329f71f84e9af15
SHA256

cc8125d8df82f9a50e6dbb64c79ca62280c1c54e34d49be178d79547ee78e832
SHA512

b00cf8e2483f6b27d5463d9b86db53707e8d1568192df6b4b13ede7ca16bae50793e091a5996aeeeb7459481d09962ec43b94d1717b80d14d8e8049bc9a72547
SSDEEP

24576:l6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQf:kWdLQk

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
2084	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\hlmgefwz\ImagePath = "C:\\Windows\\SysWOW64\\hlmgefwz\\qslwdlzp.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe

Deletes itself 1 IoCs

pid	Process
4540	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1708	qslwdlzp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1708 set thread context of 4540	1708	qslwdlzp.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
3280	sc.exe
1484	sc.exe
3608	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3124	2004	WerFault.exe	82
3752	1708	WerFault.exe	99

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	qslwdlzp.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1124	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	89
PID 2004 wrote to memory of 1124	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	89
PID 2004 wrote to memory of 1124	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	89
PID 2004 wrote to memory of 1064	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	91
PID 2004 wrote to memory of 1064	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	91
PID 2004 wrote to memory of 1064	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	91
PID 2004 wrote to memory of 3280	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	93
PID 2004 wrote to memory of 3280	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	93
PID 2004 wrote to memory of 3280	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	93
PID 2004 wrote to memory of 1484	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	95
PID 2004 wrote to memory of 1484	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	95
PID 2004 wrote to memory of 1484	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	95
PID 2004 wrote to memory of 3608	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	97
PID 2004 wrote to memory of 3608	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	97
PID 2004 wrote to memory of 3608	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	97
PID 2004 wrote to memory of 2084	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	100
PID 2004 wrote to memory of 2084	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	100
PID 2004 wrote to memory of 2084	2004	2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe	100
PID 1708 wrote to memory of 4540	1708	qslwdlzp.exe	106
PID 1708 wrote to memory of 4540	1708	qslwdlzp.exe	106
PID 1708 wrote to memory of 4540	1708	qslwdlzp.exe	106
PID 1708 wrote to memory of 4540	1708	qslwdlzp.exe	106
PID 1708 wrote to memory of 4540	1708	qslwdlzp.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hlmgefwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qslwdlzp.exe" C:\Windows\SysWOW64\hlmgefwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hlmgefwz binPath= "C:\Windows\SysWOW64\hlmgefwz\qslwdlzp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hlmgefwz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hlmgefwz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3608
- 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:2084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 1036
  2⤵
  - Program crash
  PID:3124

C:\Windows\SysWOW64\hlmgefwz\qslwdlzp.exe
C:\Windows\SysWOW64\hlmgefwz\qslwdlzp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 512
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2004 -ip 2004
1⤵
PID:2680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1708 -ip 1708
1⤵
PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\qslwdlzp.exe

Filesize
13.9MB

MD5
b7fa36988f235e866a3a903af1dc3855

SHA1
1a40b69cc33fe9094eb0770c5b565939154675c4

SHA256
308d0c44be6f0d2090eb5f2439426cec112a1fb4ac6fdfdd1a1659188f9c1a0a

SHA512
cde6e1b19f9608f3836962fca73e8bf0c88cbf8d78e35e47bb38db65fe35880dede64b302e7f1372e82a473d5213375e7c5a065e06e307461e036af919c0f8a9

Download Submit
memory/1708-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1708-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1708-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1708-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2004-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2004-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/4540-14-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/4540-16-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download
memory/4540-17-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads