tofsee | 6e8518f2d793a0178209b8f7091df07cbafd2193325b04789c7ee1a2837b6642

General

Target

2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe
Size

11.3MB
MD5

0eb39e012ddb0df5c7789ab656bad70c
SHA1

4d1aada24937ba3fed7a0caa71d29ed033e1e48e
SHA256

6e8518f2d793a0178209b8f7091df07cbafd2193325b04789c7ee1a2837b6642
SHA512

d5c598e795e40bc5d6b33035033e0ac8834f6c89246ba95032e5dd15102332719df55bcc549ff598a15ff1b30bbdb16609d2c63e30f5e805cb896c793a95b52d
SSDEEP

49152:cVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGW:cVdrl/9zG

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
4808	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\oysiporc\ImagePath = "C:\\Windows\\SysWOW64\\oysiporc\\kjvrwgqd.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe

Deletes itself 1 IoCs

pid	Process
1744	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3632	kjvrwgqd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3632 set thread context of 1744	3632	kjvrwgqd.exe	110

Launches sc.exe 3 IoCs

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

pid	Process
4520	sc.exe
2928	sc.exe
2136	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
704	1576	WerFault.exe	87
2568	3632	WerFault.exe	103

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	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_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	netsh.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	kjvrwgqd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 1224	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	91
PID 1576 wrote to memory of 1224	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	91
PID 1576 wrote to memory of 1224	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	91
PID 1576 wrote to memory of 4904	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	93
PID 1576 wrote to memory of 4904	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	93
PID 1576 wrote to memory of 4904	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	93
PID 1576 wrote to memory of 2136	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	96
PID 1576 wrote to memory of 2136	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	96
PID 1576 wrote to memory of 2136	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	96
PID 1576 wrote to memory of 4520	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	99
PID 1576 wrote to memory of 4520	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	99
PID 1576 wrote to memory of 4520	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	99
PID 1576 wrote to memory of 2928	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	101
PID 1576 wrote to memory of 2928	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	101
PID 1576 wrote to memory of 2928	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	101
PID 1576 wrote to memory of 4808	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	104
PID 1576 wrote to memory of 4808	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	104
PID 1576 wrote to memory of 4808	1576	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	104
PID 3632 wrote to memory of 1744	3632	kjvrwgqd.exe	110
PID 3632 wrote to memory of 1744	3632	kjvrwgqd.exe	110
PID 3632 wrote to memory of 1744	3632	kjvrwgqd.exe	110
PID 3632 wrote to memory of 1744	3632	kjvrwgqd.exe	110
PID 3632 wrote to memory of 1744	3632	kjvrwgqd.exe	110

C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oysiporc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kjvrwgqd.exe" C:\Windows\SysWOW64\oysiporc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oysiporc binPath= "C:\Windows\SysWOW64\oysiporc\kjvrwgqd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oysiporc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oysiporc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- 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:4808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1576 -s 1216
  2⤵
  - Program crash
  PID:704

C:\Windows\SysWOW64\oysiporc\kjvrwgqd.exe
C:\Windows\SysWOW64\oysiporc\kjvrwgqd.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3632 -s 556
  2⤵
  - Program crash
  PID:2568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1576 -ip 1576
1⤵
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3632 -ip 3632
1⤵
PID:1508

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\kjvrwgqd.exe

Filesize
14.5MB

MD5
979fefc241a11b52652d79562d664e0f

SHA1
eb3d87756932574b6b46a9a0a3a74dc9ea034dba

SHA256
e4ae67a0a927bd450790789fb1d2948291e970a7beb279758a15caae7cdc0686

SHA512
2ae719af202073e6d505a712b83ca342df92f8bf0619895377b908ea6c49506045ae2bbdf0b4cf3af1a4c1f111cc8c54e56b08bd67b31cea9594f05452b2b490

Download Submit
memory/1576-8-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/1576-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1576-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

Filesize
1024KB

Download
memory/1576-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1576-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1576-2-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/1744-14-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/1744-16-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/1744-17-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/3632-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3632-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3632-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3632-18-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads