tofsee | 534acce949e283b51c9cb3aa59c3d4dcef805cb81c66c8cef485780ae58f4fd3

General

Target

2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe
Size

12.4MB
MD5

110b0142e46e4ff35d73ac6ef54edf18
SHA1

ace5c9248b7b7b7fb278631f1f37e090b51e5321
SHA256

534acce949e283b51c9cb3aa59c3d4dcef805cb81c66c8cef485780ae58f4fd3
SHA512

c7464b39f0d158eb88c66f8b83803a10df6ab9f6abacd513e07456894490a0ef8678d3472b23bdf95fb88098c4fd49bfce83966021d5f3cdabe62f413ed20166
SSDEEP

6144:bLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQD:wTYe+D2jFu+iZoUFhAzA

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
1856	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\gxcvsnlv\ImagePath = "C:\\Windows\\SysWOW64\\gxcvsnlv\\pgcjazdh.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe

Deletes itself 1 IoCs

pid	Process
2072	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2256	pgcjazdh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 2072	2256	pgcjazdh.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4852	sc.exe
4548	sc.exe
2544	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
4864	1172	WerFault.exe	81
3848	2256	WerFault.exe	92

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.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	pgcjazdh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 1944	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	82
PID 1172 wrote to memory of 1944	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	82
PID 1172 wrote to memory of 1944	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	82
PID 1172 wrote to memory of 2864	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	84
PID 1172 wrote to memory of 2864	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	84
PID 1172 wrote to memory of 2864	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	84
PID 1172 wrote to memory of 4852	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	86
PID 1172 wrote to memory of 4852	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	86
PID 1172 wrote to memory of 4852	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	86
PID 1172 wrote to memory of 4548	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	88
PID 1172 wrote to memory of 4548	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	88
PID 1172 wrote to memory of 4548	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	88
PID 1172 wrote to memory of 2544	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	90
PID 1172 wrote to memory of 2544	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	90
PID 1172 wrote to memory of 2544	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	90
PID 1172 wrote to memory of 1856	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	93
PID 1172 wrote to memory of 1856	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	93
PID 1172 wrote to memory of 1856	1172	2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe	93
PID 2256 wrote to memory of 2072	2256	pgcjazdh.exe	98
PID 2256 wrote to memory of 2072	2256	pgcjazdh.exe	98
PID 2256 wrote to memory of 2072	2256	pgcjazdh.exe	98
PID 2256 wrote to memory of 2072	2256	pgcjazdh.exe	98
PID 2256 wrote to memory of 2072	2256	pgcjazdh.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gxcvsnlv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pgcjazdh.exe" C:\Windows\SysWOW64\gxcvsnlv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gxcvsnlv binPath= "C:\Windows\SysWOW64\gxcvsnlv\pgcjazdh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gxcvsnlv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gxcvsnlv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2544
- 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:1856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1172 -s 1032
  2⤵
  - Program crash
  PID:4864

C:\Windows\SysWOW64\gxcvsnlv\pgcjazdh.exe
C:\Windows\SysWOW64\gxcvsnlv\pgcjazdh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-04_110b0142e46e4ff35d73ac6ef54edf18_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2256 -s 536
  2⤵
  - Program crash
  PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1172 -ip 1172
1⤵
PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2256 -ip 2256
1⤵
PID:3456

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.0MB

MD5
f0fc75b5d71090544593b10dddda8591

SHA1
7e25d9213b65fcea64324fe3d8019e2c27a45cbc

SHA256
e9f6f0343809f07261b6c1f0ab7bfb4a0f7fd69dcf76bf7a5d97c5a7c54a5213

SHA512
d5e90929ca48c2b27b0bf787830ef55ed00f4d62a5dba7963e0f0f8c0529e263b33d3cbe4c45e3a61a37bcbfa536f600c450a72ce8599ba5ccb96cb9d209cdac

Download Submit
memory/1172-13-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/1172-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1172-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/1172-12-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1172-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1172-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2072-11-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/2072-17-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/2072-18-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/2256-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2256-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2256-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2256-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads