tofsee | 111c30438a1de702ec2c0b7ad1c0a000bde2f229964d3fe46142050e647243fd

General

Target

2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe
Size

11.3MB
MD5

8f4cc5d53c74381f6965e9e347365f0b
SHA1

c13e51d4f50ac41b639648641108afe915d9e945
SHA256

111c30438a1de702ec2c0b7ad1c0a000bde2f229964d3fe46142050e647243fd
SHA512

9e4978298b3e20dd8bfac43469cd2c1d98470c88f6347f268c7181957b713549434053dc20f5969f4a160947f931ac524e554fb31fda6a912da25929c40f7981
SSDEEP

49152:aqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPZ:aqtYc3k

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
3028	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\wnwoiwhp\ImagePath = "C:\\Windows\\SysWOW64\\wnwoiwhp\\owlpcajj.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe

Deletes itself 1 IoCs

pid	Process
2900	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4316	owlpcajj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4316 set thread context of 2900	4316	owlpcajj.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
1780	sc.exe
1964	sc.exe
4852	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
3216	4316	WerFault.exe	94
1128	4236	WerFault.exe	83

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	sc.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	owlpcajj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 4728	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	84
PID 4236 wrote to memory of 4728	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	84
PID 4236 wrote to memory of 4728	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	84
PID 4236 wrote to memory of 1932	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	86
PID 4236 wrote to memory of 1932	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	86
PID 4236 wrote to memory of 1932	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	86
PID 4236 wrote to memory of 1780	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	88
PID 4236 wrote to memory of 1780	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	88
PID 4236 wrote to memory of 1780	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	88
PID 4236 wrote to memory of 1964	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	90
PID 4236 wrote to memory of 1964	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	90
PID 4236 wrote to memory of 1964	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	90
PID 4236 wrote to memory of 4852	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	92
PID 4236 wrote to memory of 4852	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	92
PID 4236 wrote to memory of 4852	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	92
PID 4316 wrote to memory of 2900	4316	owlpcajj.exe	95
PID 4316 wrote to memory of 2900	4316	owlpcajj.exe	95
PID 4316 wrote to memory of 2900	4316	owlpcajj.exe	95
PID 4316 wrote to memory of 2900	4316	owlpcajj.exe	95
PID 4316 wrote to memory of 2900	4316	owlpcajj.exe	95
PID 4236 wrote to memory of 3028	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	97
PID 4236 wrote to memory of 3028	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	97
PID 4236 wrote to memory of 3028	4236	2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wnwoiwhp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\owlpcajj.exe" C:\Windows\SysWOW64\wnwoiwhp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wnwoiwhp binPath= "C:\Windows\SysWOW64\wnwoiwhp\owlpcajj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wnwoiwhp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wnwoiwhp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4852
- 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:3028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4236 -s 1216
  2⤵
  - Program crash
  PID:1128

C:\Windows\SysWOW64\wnwoiwhp\owlpcajj.exe
C:\Windows\SysWOW64\wnwoiwhp\owlpcajj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_8f4cc5d53c74381f6965e9e347365f0b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 512
  2⤵
  - Program crash
  PID:3216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4316 -ip 4316
1⤵
PID:2552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4236 -ip 4236
1⤵
PID:5052

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\owlpcajj.exe

Filesize
11.3MB

MD5
ee9729370a9e7decfb1c3368bdd99de6

SHA1
9aa67537da25e1f6366058b555948457632199e8

SHA256
305df6e5c307feeeb7048738d715edca7a9abeaecf425ebade51f70a74e0b27d

SHA512
568bc85066fddd14c3b269c7a9f11a964851b86b951a85cc42dcf8dace738587be5fd86b9ad42eaa00ea5c2dc09cd4bf99b213b24eb3ffd1701a882381395060

Download Submit
memory/2900-8-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/2900-14-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/2900-15-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/4236-1-0x0000000002E30000-0x0000000002F30000-memory.dmp

Filesize
1024KB

Download
memory/4236-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/4236-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4236-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4236-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/4236-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4316-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads