tofsee | 18a690e2f3758e4eda45b7608faca27a34d9a1c99b387a8f48103c6b4fbbea51

General

Target

2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe
Size

10.4MB
MD5

4d3f792c6cbfcb14ca6860fe15496062
SHA1

8595241a52745516b3c5b08c9337bbb72c647ebd
SHA256

18a690e2f3758e4eda45b7608faca27a34d9a1c99b387a8f48103c6b4fbbea51
SHA512

94d36bae91aaf42df86f2f69c0d62d9f692129bfe7b50f5e6dca8ee085aac93ab7dfd5c93c1f382e7479963c8979e9e743ec22884f4d64518465dcc0f13658da
SSDEEP

24576:1pomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttn:foo

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
3456	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\pheuybzd\ImagePath = "C:\\Windows\\SysWOW64\\pheuybzd\\afpkeqnp.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe

Deletes itself 1 IoCs

pid	Process
4872	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4312	afpkeqnp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4312 set thread context of 4872	4312	afpkeqnp.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
628	sc.exe
4868	sc.exe
5064	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
1288	2648	WerFault.exe	82
2772	4312	WerFault.exe	94

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.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	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	afpkeqnp.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 5072	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	84
PID 2648 wrote to memory of 5072	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	84
PID 2648 wrote to memory of 5072	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	84
PID 2648 wrote to memory of 208	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	86
PID 2648 wrote to memory of 208	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	86
PID 2648 wrote to memory of 208	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	86
PID 2648 wrote to memory of 4868	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	88
PID 2648 wrote to memory of 4868	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	88
PID 2648 wrote to memory of 4868	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	88
PID 2648 wrote to memory of 5064	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	90
PID 2648 wrote to memory of 5064	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	90
PID 2648 wrote to memory of 5064	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	90
PID 2648 wrote to memory of 628	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	92
PID 2648 wrote to memory of 628	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	92
PID 2648 wrote to memory of 628	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	92
PID 2648 wrote to memory of 3456	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	95
PID 2648 wrote to memory of 3456	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	95
PID 2648 wrote to memory of 3456	2648	2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe	95
PID 4312 wrote to memory of 4872	4312	afpkeqnp.exe	103
PID 4312 wrote to memory of 4872	4312	afpkeqnp.exe	103
PID 4312 wrote to memory of 4872	4312	afpkeqnp.exe	103
PID 4312 wrote to memory of 4872	4312	afpkeqnp.exe	103
PID 4312 wrote to memory of 4872	4312	afpkeqnp.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pheuybzd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\afpkeqnp.exe" C:\Windows\SysWOW64\pheuybzd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pheuybzd binPath= "C:\Windows\SysWOW64\pheuybzd\afpkeqnp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pheuybzd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pheuybzd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:628
- 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:3456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 1360
  2⤵
  - Program crash
  PID:1288

C:\Windows\SysWOW64\pheuybzd\afpkeqnp.exe
C:\Windows\SysWOW64\pheuybzd\afpkeqnp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-23_4d3f792c6cbfcb14ca6860fe15496062_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 512
  2⤵
  - Program crash
  PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2648 -ip 2648
1⤵
PID:3832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4312 -ip 4312
1⤵
PID:3292

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\afpkeqnp.exe

Filesize
10.1MB

MD5
073e8f4f1e1fc2135c22d4855292156f

SHA1
52984022f35d006bce2144d1f4ed07d0e0fc7cf9

SHA256
acd1abd497f28e7c344a97f16809cba8506be100b8b006916705cebc67ba746c

SHA512
0606a5818d0ff50ca85e85d5258a23e760614dd43c103f2f7a3670c041f250569bd7e7603f833efab3401c8a0fcbf857381e7d0cf672a229030a7e8d9075f9af

Download Submit
memory/2648-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-1-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/2648-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/2648-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/4312-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4312-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4312-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4312-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4872-14-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/4872-16-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/4872-17-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads