tofsee | 895e58e998394c5bad05cea208855f3ec100bbe82128cf9dc8aedd9dfa1a6be2

General

Target

2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe
Size

10.0MB
MD5

0b5830fc403efacf6492e62588fe2e3a
SHA1

fdeb8f8b9cea48693c2cbdd08cb04e9ef90c5a8d
SHA256

895e58e998394c5bad05cea208855f3ec100bbe82128cf9dc8aedd9dfa1a6be2
SHA512

a66b328c757b52302a8bddbaa4c26dbbb5a272e128a97db7f5aff9d6e83450fe3f6329f9d57e30324cdefdc53382d7ea7f0826308bea9dc58189fc6a4c792052
SSDEEP

6144:W+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:W+r1IeSXMXc7LlxWV4Ug97GZ+ej

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
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
3168	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\ifzwdpvc\ImagePath = "C:\\Windows\\SysWOW64\\ifzwdpvc\\xjkezvwt.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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe

Deletes itself 1 IoCs

pid	Process
3540	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
512	xjkezvwt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 512 set thread context of 3540	512	xjkezvwt.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2116	sc.exe
4296	sc.exe
3420	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

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	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xjkezvwt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 4768	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	87
PID 3764 wrote to memory of 4768	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	87
PID 3764 wrote to memory of 4768	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	87
PID 3764 wrote to memory of 2192	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	89
PID 3764 wrote to memory of 2192	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	89
PID 3764 wrote to memory of 2192	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	89
PID 3764 wrote to memory of 2116	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	91
PID 3764 wrote to memory of 2116	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	91
PID 3764 wrote to memory of 2116	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	91
PID 3764 wrote to memory of 4296	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	93
PID 3764 wrote to memory of 4296	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	93
PID 3764 wrote to memory of 4296	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	93
PID 3764 wrote to memory of 3420	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	95
PID 3764 wrote to memory of 3420	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	95
PID 3764 wrote to memory of 3420	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	95
PID 3764 wrote to memory of 3168	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	98
PID 3764 wrote to memory of 3168	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	98
PID 3764 wrote to memory of 3168	3764	2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe	98
PID 512 wrote to memory of 3540	512	xjkezvwt.exe	100
PID 512 wrote to memory of 3540	512	xjkezvwt.exe	100
PID 512 wrote to memory of 3540	512	xjkezvwt.exe	100
PID 512 wrote to memory of 3540	512	xjkezvwt.exe	100
PID 512 wrote to memory of 3540	512	xjkezvwt.exe	100

C:\Users\Admin\AppData\Local\Temp\2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ifzwdpvc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xjkezvwt.exe" C:\Windows\SysWOW64\ifzwdpvc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ifzwdpvc binPath= "C:\Windows\SysWOW64\ifzwdpvc\xjkezvwt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ifzwdpvc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4296
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ifzwdpvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3420
- 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:3168

C:\Windows\SysWOW64\ifzwdpvc\xjkezvwt.exe
C:\Windows\SysWOW64\ifzwdpvc\xjkezvwt.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-08-15_0b5830fc403efacf6492e62588fe2e3a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:512
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3540

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\xjkezvwt.exe

Filesize
14.4MB

MD5
1b305d4f0e5adbef62b156fb78795f1c

SHA1
0fdef5edccd1ad0296c475d8582e0e80f3e48bab

SHA256
1191b5bd620e6ad266bbec8b18c61f2a7b91ea2efaca639115d1ffbbb8e5823c

SHA512
de084e22d7c3d80b0c0bc62cc27cd5e6da571693889ec58c1d03959596b1f701e57ad38b5391b3af1c6dcdef0742a8e3d8aab27f35cef91573f1663d8e2f0fe3

Download Submit
memory/512-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/512-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/512-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3540-11-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/3540-14-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/3540-16-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/3764-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/3764-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3764-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3764-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads