tofsee | 69299f62d1520b99bd8c85ebd76d67d3f87570c14ce5401905a6f402afb3f29c

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 06:57

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General

Target

2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe
Size

13.5MB
MD5

cdbaca4721c7f448ae68647df39bf536
SHA1

cb7f96385d9c6f758ead9da6855afaf4b1030295
SHA256

69299f62d1520b99bd8c85ebd76d67d3f87570c14ce5401905a6f402afb3f29c
SHA512

04bb5b6f6b246d27ce9f8d83263f122615781fb6192ac8bd3622f559856aa7fef1cb518dba24f2b6761fce4d7e039e496e62bc9bfaab6980557d4ef5f2cd5ab2
SSDEEP

24576:IEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZr:Ffot

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\ctvxdnat = "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
2700	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\ctvxdnat\ImagePath = "C:\\Windows\\SysWOW64\\ctvxdnat\\pkogwhjh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2948	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	pkogwhjh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2948	2772	pkogwhjh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2864	sc.exe
2924	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	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pkogwhjh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2312	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	30
PID 1924 wrote to memory of 2312	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	30
PID 1924 wrote to memory of 2312	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	30
PID 1924 wrote to memory of 2312	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	30
PID 1924 wrote to memory of 2748	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	32
PID 1924 wrote to memory of 2748	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	32
PID 1924 wrote to memory of 2748	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	32
PID 1924 wrote to memory of 2748	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	32
PID 1924 wrote to memory of 2848	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	34
PID 1924 wrote to memory of 2848	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	34
PID 1924 wrote to memory of 2848	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	34
PID 1924 wrote to memory of 2848	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	34
PID 1924 wrote to memory of 2864	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	36
PID 1924 wrote to memory of 2864	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	36
PID 1924 wrote to memory of 2864	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	36
PID 1924 wrote to memory of 2864	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	36
PID 1924 wrote to memory of 2924	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	38
PID 1924 wrote to memory of 2924	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	38
PID 1924 wrote to memory of 2924	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	38
PID 1924 wrote to memory of 2924	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	38
PID 2772 wrote to memory of 2948	2772	pkogwhjh.exe	41
PID 2772 wrote to memory of 2948	2772	pkogwhjh.exe	41
PID 2772 wrote to memory of 2948	2772	pkogwhjh.exe	41
PID 2772 wrote to memory of 2948	2772	pkogwhjh.exe	41
PID 2772 wrote to memory of 2948	2772	pkogwhjh.exe	41
PID 2772 wrote to memory of 2948	2772	pkogwhjh.exe	41
PID 1924 wrote to memory of 2700	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	42
PID 1924 wrote to memory of 2700	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	42
PID 1924 wrote to memory of 2700	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	42
PID 1924 wrote to memory of 2700	1924	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ctvxdnat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pkogwhjh.exe" C:\Windows\SysWOW64\ctvxdnat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ctvxdnat binPath= "C:\Windows\SysWOW64\ctvxdnat\pkogwhjh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ctvxdnat "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ctvxdnat
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- 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:2700

C:\Windows\SysWOW64\ctvxdnat\pkogwhjh.exe
C:\Windows\SysWOW64\ctvxdnat\pkogwhjh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2948

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\pkogwhjh.exe

Filesize
12.9MB

MD5
6a397c7bc04ae63117f5925e9b9fd54f

SHA1
940657256af629fa51b70bc05779ef0976c63637

SHA256
23be3499b2b9a7e01237488f80243a36b9be5d528a0ec85a717cd4b0104ddbe8

SHA512
4dfb4f3e74ed91757bed613051d5cca3ed2b844e0eb72aa074d8540c01711d18e6707c93d5245f0bc685a2f6b5c3f5af1b75b0df38298f79b3e39312260eac83

Download Submit
memory/1924-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1924-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1924-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1924-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1924-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/1924-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1924-16-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2772-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2948-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2948-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2948-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2948-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2948-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads