tofsee | 97b150d3c7d68e35a8601d95ba0f43ac9b83b61179a3260a29347ba880993ced

Analysis

max time kernel
145s
max time network
116s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-08-2024 23:04

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General

Target

2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe
Size

12.3MB
MD5

ee64939627d553fe824c36c173282baf
SHA1

aa52d0075d52ed759a0732de76f9116c72d618b5
SHA256

97b150d3c7d68e35a8601d95ba0f43ac9b83b61179a3260a29347ba880993ced
SHA512

dd50fe0c89f36e8d3c4fa98bbecb0014087da7974c820584f133015a476c00cdd1a31acd75867b7fae77159f5139564c3d3dda00befcecfb5a5c3c7b470cbc3b
SSDEEP

6144:x+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:x+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\nokvxogf = "0"	svchost.exe

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
292	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\nokvxogf\ImagePath = "C:\\Windows\\SysWOW64\\nokvxogf\\mholkhde.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2740	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	mholkhde.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2740	2832	mholkhde.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1884	sc.exe
3004	sc.exe
3020	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	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	2024-08-30_ee64939627d553fe824c36c173282baf_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	mholkhde.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2300	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	30
PID 2164 wrote to memory of 2300	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	30
PID 2164 wrote to memory of 2300	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	30
PID 2164 wrote to memory of 2300	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	30
PID 2164 wrote to memory of 2928	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	32
PID 2164 wrote to memory of 2928	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	32
PID 2164 wrote to memory of 2928	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	32
PID 2164 wrote to memory of 2928	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	32
PID 2164 wrote to memory of 1884	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	34
PID 2164 wrote to memory of 1884	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	34
PID 2164 wrote to memory of 1884	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	34
PID 2164 wrote to memory of 1884	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	34
PID 2164 wrote to memory of 3004	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	36
PID 2164 wrote to memory of 3004	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	36
PID 2164 wrote to memory of 3004	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	36
PID 2164 wrote to memory of 3004	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	36
PID 2164 wrote to memory of 3020	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	38
PID 2164 wrote to memory of 3020	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	38
PID 2164 wrote to memory of 3020	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	38
PID 2164 wrote to memory of 3020	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	38
PID 2832 wrote to memory of 2740	2832	mholkhde.exe	41
PID 2832 wrote to memory of 2740	2832	mholkhde.exe	41
PID 2832 wrote to memory of 2740	2832	mholkhde.exe	41
PID 2832 wrote to memory of 2740	2832	mholkhde.exe	41
PID 2832 wrote to memory of 2740	2832	mholkhde.exe	41
PID 2832 wrote to memory of 2740	2832	mholkhde.exe	41
PID 2164 wrote to memory of 292	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	42
PID 2164 wrote to memory of 292	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	42
PID 2164 wrote to memory of 292	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	42
PID 2164 wrote to memory of 292	2164	2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nokvxogf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mholkhde.exe" C:\Windows\SysWOW64\nokvxogf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nokvxogf binPath= "C:\Windows\SysWOW64\nokvxogf\mholkhde.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nokvxogf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nokvxogf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- 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:292

C:\Windows\SysWOW64\nokvxogf\mholkhde.exe
C:\Windows\SysWOW64\nokvxogf\mholkhde.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-08-30_ee64939627d553fe824c36c173282baf_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mholkhde.exe

Filesize
14.7MB

MD5
a1e1d67b98abf21f5c7ef91f33e41579

SHA1
db0452db14ee3c6f5f02dd31ca3d79aae49a35b2

SHA256
cdd30c433a20f93fa02f0602ca67a2177b7ab84152e197757891facea77b06c6

SHA512
675c87f0f2b883dffc2372189f97739435ee39b4312a1475a646c38aae285c5fc15327ddb8b812a937208631abf6c3b649020187319267d2c82cc734eed5c163

Download Submit
memory/2164-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2164-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2164-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2164-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2740-10-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2740-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-7-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2740-15-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2740-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2832-12-0x0000000000400000-0x000000000051A000-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