tofsee | 41c20c399f19561f0c2f65baee9a5ba7a0c93c001b78144f891de3aab46c251c

General

Target

2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe
Size

12.8MB
MD5

3d6eefda163d7f4ebf4dfc4c46426110
SHA1

b8307ffee2975a25abd1cda73735724e7521d228
SHA256

41c20c399f19561f0c2f65baee9a5ba7a0c93c001b78144f891de3aab46c251c
SHA512

23b2f27978778ab87338d8ac807ed5c3bc48fd0c88ac55d5858e328356a303ea0c3f39a863c974f17cc56aad97e1b817779a11fac49602c10c72a985bd12c293
SSDEEP

24576:BpomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt1:boo

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
1748	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\tcybmxdj\ImagePath = "C:\\Windows\\SysWOW64\\tcybmxdj\\gibmtbpf.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe

Deletes itself 1 IoCs

pid	Process
3392	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1064	gibmtbpf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1064 set thread context of 3392	1064	gibmtbpf.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4172	sc.exe
4416	sc.exe
4564	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
3532	4860	WerFault.exe	82
1480	1064	WerFault.exe	93

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	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	gibmtbpf.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 2704	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	83
PID 4860 wrote to memory of 2704	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	83
PID 4860 wrote to memory of 2704	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	83
PID 4860 wrote to memory of 1972	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	85
PID 4860 wrote to memory of 1972	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	85
PID 4860 wrote to memory of 1972	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	85
PID 4860 wrote to memory of 4172	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	87
PID 4860 wrote to memory of 4172	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	87
PID 4860 wrote to memory of 4172	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	87
PID 4860 wrote to memory of 4416	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	89
PID 4860 wrote to memory of 4416	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	89
PID 4860 wrote to memory of 4416	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	89
PID 4860 wrote to memory of 4564	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	91
PID 4860 wrote to memory of 4564	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	91
PID 4860 wrote to memory of 4564	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	91
PID 4860 wrote to memory of 1748	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	94
PID 4860 wrote to memory of 1748	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	94
PID 4860 wrote to memory of 1748	4860	2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe	94
PID 1064 wrote to memory of 3392	1064	gibmtbpf.exe	100
PID 1064 wrote to memory of 3392	1064	gibmtbpf.exe	100
PID 1064 wrote to memory of 3392	1064	gibmtbpf.exe	100
PID 1064 wrote to memory of 3392	1064	gibmtbpf.exe	100
PID 1064 wrote to memory of 3392	1064	gibmtbpf.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tcybmxdj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gibmtbpf.exe" C:\Windows\SysWOW64\tcybmxdj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tcybmxdj binPath= "C:\Windows\SysWOW64\tcybmxdj\gibmtbpf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tcybmxdj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tcybmxdj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- 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:1748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1028
  2⤵
  - Program crash
  PID:3532

C:\Windows\SysWOW64\tcybmxdj\gibmtbpf.exe
C:\Windows\SysWOW64\tcybmxdj\gibmtbpf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_3d6eefda163d7f4ebf4dfc4c46426110_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1064 -s 512
  2⤵
  - Program crash
  PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4860 -ip 4860
1⤵
PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1064 -ip 1064
1⤵
PID:648

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\gibmtbpf.exe

Filesize
10.0MB

MD5
65c919290eeb33a5ed781e4443a1f47a

SHA1
052d7ffa0e0e0b167d501cbc9859c0afdff3826b

SHA256
f4dd7467103952767dabd02879631611b64a25843aacd5f110a614a013b55cfb

SHA512
8436795f16f02908dccd8e3b86582a77102b1850101addf706c1823fd5198d6554292922265d45dc8c4ce2f1e15262a9ab0fe6eafebf6a03ac31eb4fd0d5bd7b

Download Submit
memory/1064-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1064-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1064-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1064-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3392-14-0x0000000000AA0000-0x0000000000AB5000-memory.dmp

Filesize
84KB

Download
memory/3392-16-0x0000000000AA0000-0x0000000000AB5000-memory.dmp

Filesize
84KB

Download
memory/3392-17-0x0000000000AA0000-0x0000000000AB5000-memory.dmp

Filesize
84KB

Download
memory/4860-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4860-2-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/4860-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4860-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4860-8-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/4860-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads