tofsee | 1df3966bb68ddb214aa79bf0e002afae813fe089498c110b09aa63921df34d6b

Analysis

max time kernel
147s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 17:46

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General

Target

2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe
Size

14.8MB
MD5

19bea42ff8e243988f50a16d8f6bdef5
SHA1

5d7ce7af5387302f32d0c56741f71b7fa4a80b15
SHA256

1df3966bb68ddb214aa79bf0e002afae813fe089498c110b09aa63921df34d6b
SHA512

a92c60835aa4f07c44cb79ad3aaa4ec3476bf0df1611b53704bcbbe55baffbe11bce8981b0bf5f91a4b6d54fa6407ddfa25822cbd33de0ece2369883194427b2
SSDEEP

6144:ZXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:ZXzuKJ8GD96ySzTcANnQMMMMMMMb

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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\pdwkskn = "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
2588	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\pdwkskn\ImagePath = "C:\\Windows\\SysWOW64\\pdwkskn\\rasramqh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2388	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	rasramqh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2388	2716	rasramqh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2676	sc.exe
2660	sc.exe
2892	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_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	rasramqh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2748	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	30
PID 2440 wrote to memory of 2748	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	30
PID 2440 wrote to memory of 2748	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	30
PID 2440 wrote to memory of 2748	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	30
PID 2440 wrote to memory of 2012	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	32
PID 2440 wrote to memory of 2012	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	32
PID 2440 wrote to memory of 2012	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	32
PID 2440 wrote to memory of 2012	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	32
PID 2440 wrote to memory of 2676	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	34
PID 2440 wrote to memory of 2676	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	34
PID 2440 wrote to memory of 2676	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	34
PID 2440 wrote to memory of 2676	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	34
PID 2440 wrote to memory of 2660	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	36
PID 2440 wrote to memory of 2660	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	36
PID 2440 wrote to memory of 2660	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	36
PID 2440 wrote to memory of 2660	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	36
PID 2440 wrote to memory of 2892	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	38
PID 2440 wrote to memory of 2892	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	38
PID 2440 wrote to memory of 2892	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	38
PID 2440 wrote to memory of 2892	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	38
PID 2440 wrote to memory of 2588	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	41
PID 2440 wrote to memory of 2588	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	41
PID 2440 wrote to memory of 2588	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	41
PID 2440 wrote to memory of 2588	2440	2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe	41
PID 2716 wrote to memory of 2388	2716	rasramqh.exe	43
PID 2716 wrote to memory of 2388	2716	rasramqh.exe	43
PID 2716 wrote to memory of 2388	2716	rasramqh.exe	43
PID 2716 wrote to memory of 2388	2716	rasramqh.exe	43
PID 2716 wrote to memory of 2388	2716	rasramqh.exe	43
PID 2716 wrote to memory of 2388	2716	rasramqh.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pdwkskn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rasramqh.exe" C:\Windows\SysWOW64\pdwkskn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pdwkskn binPath= "C:\Windows\SysWOW64\pdwkskn\rasramqh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pdwkskn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pdwkskn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2892
- 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:2588

C:\Windows\SysWOW64\pdwkskn\rasramqh.exe
C:\Windows\SysWOW64\pdwkskn\rasramqh.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- 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:2388

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\rasramqh.exe

Filesize
13.7MB

MD5
44b07a9e7277d34ea0fc3afc84aa52b3

SHA1
bee1c78e37cd8faf9b4ddd8cb98d18e7e626eb26

SHA256
417fbaa5f47c633e0288d31000f869b6fd1fa55041675146923f2ef25d4c77fb

SHA512
b586989715aa3e98c89be351f8efe6d602ad5fb5209ffe3f61e2fe8dddd5a281dbb4a49fcf1a428b01b9a7f260fba8d173f50693228706667adc034c3316f9e5

Download Submit
memory/2388-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2388-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2440-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2440-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2440-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2440-9-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2440-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2440-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2440-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2716-18-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads