tofsee | 125121038f658715f0f002cd92bedf1bf318f8c211d64fa06d62e58d9c6d851e

General

Target

2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe
Size

13.3MB
MD5

cc640048a903f18aef9ea0fdfb9b3920
SHA1

cf2ffdbe0837aa34c6983027b7b2497d75a57d09
SHA256

125121038f658715f0f002cd92bedf1bf318f8c211d64fa06d62e58d9c6d851e
SHA512

e74d5fa348a8fa01a3a86e202e96aafcf65c51571e2be26ba011c2c3402b82dc18b54ec1a9524d2503c2a978d87e6bfa8f06f45a532e3de12d8656b4dfab5891
SSDEEP

49152:9qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:9qtYc3

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5048	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\whtnynwr\ImagePath = "C:\\Windows\\SysWOW64\\whtnynwr\\lngryguk.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe

Deletes itself 1 IoCs

pid	Process
2132	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1488	lngryguk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1488 set thread context of 2132	1488	lngryguk.exe	96

Launches sc.exe 3 IoCs

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

pid	Process
1028	sc.exe
2912	sc.exe
388	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
1824	1488	WerFault.exe	94
3676	1788	WerFault.exe	82

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lngryguk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_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	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 1788 wrote to memory of 3544	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	83
PID 1788 wrote to memory of 3544	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	83
PID 1788 wrote to memory of 3544	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	83
PID 1788 wrote to memory of 4880	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	85
PID 1788 wrote to memory of 4880	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	85
PID 1788 wrote to memory of 4880	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	85
PID 1788 wrote to memory of 1028	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	87
PID 1788 wrote to memory of 1028	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	87
PID 1788 wrote to memory of 1028	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	87
PID 1788 wrote to memory of 2912	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	89
PID 1788 wrote to memory of 2912	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	89
PID 1788 wrote to memory of 2912	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	89
PID 1788 wrote to memory of 388	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	92
PID 1788 wrote to memory of 388	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	92
PID 1788 wrote to memory of 388	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	92
PID 1488 wrote to memory of 2132	1488	lngryguk.exe	96
PID 1488 wrote to memory of 2132	1488	lngryguk.exe	96
PID 1488 wrote to memory of 2132	1488	lngryguk.exe	96
PID 1488 wrote to memory of 2132	1488	lngryguk.exe	96
PID 1488 wrote to memory of 2132	1488	lngryguk.exe	96
PID 1788 wrote to memory of 5048	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	95
PID 1788 wrote to memory of 5048	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	95
PID 1788 wrote to memory of 5048	1788	2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\whtnynwr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lngryguk.exe" C:\Windows\SysWOW64\whtnynwr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create whtnynwr binPath= "C:\Windows\SysWOW64\whtnynwr\lngryguk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description whtnynwr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start whtnynwr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:388
- 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:5048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 1220
  2⤵
  - Program crash
  PID:3676

C:\Windows\SysWOW64\whtnynwr\lngryguk.exe
C:\Windows\SysWOW64\whtnynwr\lngryguk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-09_cc640048a903f18aef9ea0fdfb9b3920_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2132
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1488 -s 560
  2⤵
  - Program crash
  PID:1824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1488 -ip 1488
1⤵
PID:2252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1788 -ip 1788
1⤵
PID:3152

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\lngryguk.exe

Filesize
13.6MB

MD5
e3a32c1ce738d32fd2833ac693d0bdb5

SHA1
1ecb711108d3ad9a67df2d302eef34031f53f91e

SHA256
1b564e720d600b5b4ea45fe242f595c54e356da8f88c2e60c198636df27eab9a

SHA512
2d810b3845c1c3b84cbe02999561c984b076aa7c40406c6594d3828b8d95f9239fca74819bc863a91bab6c221b71299d56fc4cd10cdb8e62de42e18069940525

Download Submit
memory/1488-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/1788-1-0x0000000002FA0000-0x00000000030A0000-memory.dmp

Filesize
1024KB

Download
memory/1788-2-0x0000000002EF0000-0x0000000002F03000-memory.dmp

Filesize
76KB

Download
memory/1788-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1788-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1788-12-0x0000000002EF0000-0x0000000002F03000-memory.dmp

Filesize
76KB

Download
memory/1788-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2132-8-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2132-14-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2132-15-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads