tofsee | d01706c959bbe925d5a8b507e67ca919922051d63d34ded5a439cca910c1c4b2

General

Target

2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe
Size

12.3MB
MD5

1168253c9e20a913dd3635106b8691ab
SHA1

e4cc3707be34a2f3aed2e2765b2d12440336f704
SHA256

d01706c959bbe925d5a8b507e67ca919922051d63d34ded5a439cca910c1c4b2
SHA512

36ed6357349ce09067c1011645be1e6a034d5c43b791ccf45f5acfa66527796a79e97b357ca7e23858830a6c6407318fef3590bc6a394aeea78742afcbe816f6
SSDEEP

3072:lLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:IOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
3432	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\oxaresfl\ImagePath = "C:\\Windows\\SysWOW64\\oxaresfl\\vmipgfjn.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe

Deletes itself 1 IoCs

pid	Process
3792	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4608	vmipgfjn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4608 set thread context of 3792	4608	vmipgfjn.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
760	sc.exe
2672	sc.exe
5012	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
3092	3948	WerFault.exe	84
4456	4608	WerFault.exe	101

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	2025-02-02_1168253c9e20a913dd3635106b8691ab_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vmipgfjn.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 2860	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	90
PID 3948 wrote to memory of 2860	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	90
PID 3948 wrote to memory of 2860	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	90
PID 3948 wrote to memory of 1352	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	93
PID 3948 wrote to memory of 1352	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	93
PID 3948 wrote to memory of 1352	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	93
PID 3948 wrote to memory of 760	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	95
PID 3948 wrote to memory of 760	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	95
PID 3948 wrote to memory of 760	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	95
PID 3948 wrote to memory of 2672	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	97
PID 3948 wrote to memory of 2672	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	97
PID 3948 wrote to memory of 2672	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	97
PID 3948 wrote to memory of 5012	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	99
PID 3948 wrote to memory of 5012	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	99
PID 3948 wrote to memory of 5012	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	99
PID 3948 wrote to memory of 3432	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	102
PID 3948 wrote to memory of 3432	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	102
PID 3948 wrote to memory of 3432	3948	2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe	102
PID 4608 wrote to memory of 3792	4608	vmipgfjn.exe	107
PID 4608 wrote to memory of 3792	4608	vmipgfjn.exe	107
PID 4608 wrote to memory of 3792	4608	vmipgfjn.exe	107
PID 4608 wrote to memory of 3792	4608	vmipgfjn.exe	107
PID 4608 wrote to memory of 3792	4608	vmipgfjn.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oxaresfl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vmipgfjn.exe" C:\Windows\SysWOW64\oxaresfl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oxaresfl binPath= "C:\Windows\SysWOW64\oxaresfl\vmipgfjn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oxaresfl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oxaresfl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5012
- 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:3432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1152
  2⤵
  - Program crash
  PID:3092

C:\Windows\SysWOW64\oxaresfl\vmipgfjn.exe
C:\Windows\SysWOW64\oxaresfl\vmipgfjn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1168253c9e20a913dd3635106b8691ab_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4608
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 512
  2⤵
  - Program crash
  PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3948 -ip 3948
1⤵
PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4608 -ip 4608
1⤵
PID:1624

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\vmipgfjn.exe

Filesize
14.9MB

MD5
5e78fd16efa82dea2487ab712fc06f7f

SHA1
639916304767cc463145752267dabd2bfb9ff5e5

SHA256
5b43ffc87c334dcdd9dbddad5ff43e3cab6cd30efbafd2867b4c87b0adabb0e8

SHA512
28513c3bfef18a6ff9658f7b09cb2d471db7cf401ff48f46c9f79ba30bbff075e4019d270bb679c9123bebaedd491d6e48dec203d1ddc824f295b183f19c0d2b

Download Submit
memory/3792-14-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/3792-17-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/3792-16-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/3948-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3948-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3948-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/3948-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3948-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3948-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4608-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4608-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4608-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4608-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads