tofsee | 00dbd1a4b6930e88c337b07643a2bd07ca484abc06e9a9e58f2d4eb3efabc513

Analysis

max time kernel
148s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-11-2024 18:53

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General

Target

2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe
Size

10.7MB
MD5

5c3d80a6c3a15ff810dbb03994bc7d16
SHA1

8639cca039a2b2eb900fd302874c940220f3614c
SHA256

00dbd1a4b6930e88c337b07643a2bd07ca484abc06e9a9e58f2d4eb3efabc513
SHA512

d5911c0f13a438e3e89b0856745e5d62c959f59746b64722e15e92b6747d8c6b2465f8754e09dc0d2775b6b731fa001efafd02b2885ed78a643a96e8d36b8d8e
SSDEEP

49152:4Vdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGf:4Vdrl/9zG

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
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\wbwybkvs = "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

Processes:

netsh.exe

pid	Process
2764	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wbwybkvs\ImagePath = "C:\\Windows\\SysWOW64\\wbwybkvs\\pnuqpywn.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
2500	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

pnuqpywn.exe

pid	Process
2788	pnuqpywn.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

pnuqpywn.exe

description	pid	Process	procid_target
PID 2788 set thread context of 2500	2788	pnuqpywn.exe	41

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2640	sc.exe
2652	sc.exe
3068	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

Processes:

netsh.exe

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

Processes:

cmd.exesc.exepnuqpywn.exesvchost.exenetsh.exe2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.execmd.exesc.exesc.exe

description	ioc	Process
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	pnuqpywn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exepnuqpywn.exe

description	pid	Process	procid_target
PID 1860 wrote to memory of 1072	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	28
PID 1860 wrote to memory of 1072	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	28
PID 1860 wrote to memory of 1072	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	28
PID 1860 wrote to memory of 1072	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	28
PID 1860 wrote to memory of 1668	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	30
PID 1860 wrote to memory of 1668	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	30
PID 1860 wrote to memory of 1668	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	30
PID 1860 wrote to memory of 1668	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	30
PID 1860 wrote to memory of 2640	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	32
PID 1860 wrote to memory of 2640	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	32
PID 1860 wrote to memory of 2640	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	32
PID 1860 wrote to memory of 2640	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	32
PID 1860 wrote to memory of 2652	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	34
PID 1860 wrote to memory of 2652	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	34
PID 1860 wrote to memory of 2652	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	34
PID 1860 wrote to memory of 2652	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	34
PID 1860 wrote to memory of 3068	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	36
PID 1860 wrote to memory of 3068	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	36
PID 1860 wrote to memory of 3068	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	36
PID 1860 wrote to memory of 3068	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	36
PID 1860 wrote to memory of 2764	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	39
PID 1860 wrote to memory of 2764	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	39
PID 1860 wrote to memory of 2764	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	39
PID 1860 wrote to memory of 2764	1860	2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe	39
PID 2788 wrote to memory of 2500	2788	pnuqpywn.exe	41
PID 2788 wrote to memory of 2500	2788	pnuqpywn.exe	41
PID 2788 wrote to memory of 2500	2788	pnuqpywn.exe	41
PID 2788 wrote to memory of 2500	2788	pnuqpywn.exe	41
PID 2788 wrote to memory of 2500	2788	pnuqpywn.exe	41
PID 2788 wrote to memory of 2500	2788	pnuqpywn.exe	41

C:\Users\Admin\AppData\Local\Temp\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wbwybkvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pnuqpywn.exe" C:\Windows\SysWOW64\wbwybkvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wbwybkvs binPath= "C:\Windows\SysWOW64\wbwybkvs\pnuqpywn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wbwybkvs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wbwybkvs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3068
- 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:2764

C:\Windows\SysWOW64\wbwybkvs\pnuqpywn.exe
C:\Windows\SysWOW64\wbwybkvs\pnuqpywn.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2500

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

Replay Monitor

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Downloads

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

Filesize
13.9MB

MD5
c84dda3be18a9eddee5c7c7d159266e3

SHA1
79156b4fad6b2d41324511d4c185248212bea7d9

SHA256
74365af5bc989627e95e7e30b1969872aa07e8488b667697fc2205539429985a

SHA512
3ec929832eee1bd39df81431cab7cdf90bc1f4685200024408867144ce7a4625fb30bf4b53427a14d6fd8e0532265cfec40485d2744eb61024e48e63cd1d838e

Download Submit
memory/1860-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/1860-3-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1860-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1860-8-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1860-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2500-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2500-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2500-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2500-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2500-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2788-15-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download