tofsee | 989821684007c580cf03c0c1b716cd1afacecb11f2f6912f2c9b011c46261a7d

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 13:06

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General

Target

2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe
Size

11.6MB
MD5

c787eb227f286f1e66b5956a655d92ba
SHA1

54c4db249433272ecffbfe2a68034a0057d3d2e1
SHA256

989821684007c580cf03c0c1b716cd1afacecb11f2f6912f2c9b011c46261a7d
SHA512

61a22bffff2eaa8d67a55a70f762cfc42a8625ec00029f6edbe190cb679e4cec4f61a64ecaa2aa75d9b51bb3cc817459af39231e82be72a9c79c413aa838d9ef
SSDEEP

196608:iyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXa:HXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXq

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\ikpncjfb = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
760	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\ikpncjfb\ImagePath = "C:\\Windows\\SysWOW64\\ikpncjfb\\zbwcvis.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	zbwcvis.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2680 set thread context of 1736	2680	zbwcvis.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2604	sc.exe
2992	sc.exe
2776	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zbwcvis.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 2740	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	30
PID 2804 wrote to memory of 2740	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	30
PID 2804 wrote to memory of 2740	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	30
PID 2804 wrote to memory of 2740	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	30
PID 2804 wrote to memory of 3012	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	32
PID 2804 wrote to memory of 3012	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	32
PID 2804 wrote to memory of 3012	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	32
PID 2804 wrote to memory of 3012	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	32
PID 2804 wrote to memory of 2992	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	34
PID 2804 wrote to memory of 2992	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	34
PID 2804 wrote to memory of 2992	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	34
PID 2804 wrote to memory of 2992	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	34
PID 2804 wrote to memory of 2776	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	36
PID 2804 wrote to memory of 2776	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	36
PID 2804 wrote to memory of 2776	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	36
PID 2804 wrote to memory of 2776	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	36
PID 2804 wrote to memory of 2604	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	38
PID 2804 wrote to memory of 2604	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	38
PID 2804 wrote to memory of 2604	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	38
PID 2804 wrote to memory of 2604	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	38
PID 2804 wrote to memory of 760	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	41
PID 2804 wrote to memory of 760	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	41
PID 2804 wrote to memory of 760	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	41
PID 2804 wrote to memory of 760	2804	2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe	41
PID 2680 wrote to memory of 1736	2680	zbwcvis.exe	43
PID 2680 wrote to memory of 1736	2680	zbwcvis.exe	43
PID 2680 wrote to memory of 1736	2680	zbwcvis.exe	43
PID 2680 wrote to memory of 1736	2680	zbwcvis.exe	43
PID 2680 wrote to memory of 1736	2680	zbwcvis.exe	43
PID 2680 wrote to memory of 1736	2680	zbwcvis.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ikpncjfb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zbwcvis.exe" C:\Windows\SysWOW64\ikpncjfb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ikpncjfb binPath= "C:\Windows\SysWOW64\ikpncjfb\zbwcvis.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ikpncjfb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ikpncjfb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- 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:760

C:\Windows\SysWOW64\ikpncjfb\zbwcvis.exe
C:\Windows\SysWOW64\ikpncjfb\zbwcvis.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_c787eb227f286f1e66b5956a655d92ba_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- 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:1736

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\zbwcvis.exe

Filesize
11.0MB

MD5
5036af0968d0b8d5aa3a1104d1607cf6

SHA1
78f9313fef05f913b10a9914c734d9a92e087cfb

SHA256
8bd673c90c6f656f9edd1d32b7e9c6b05e05a24c3b4ca6004ef53bfbfde4164b

SHA512
9dff2b27bd1612c598d752c3a5f0bf0216730443bd6c51acea01c1cd3f1c83b7c446b3e91256b2d49867d2dcc946c090defccc2cb945e67e8496689270487a13

Download Submit
memory/1736-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1736-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1736-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1736-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1736-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2804-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2804-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2804-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2804-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2804-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2804-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads