tofsee | 651e2ea48089fe2457bc7d88d4df485139a1277b5cfc9126124caea1ba51520a

Analysis

max time kernel
148s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 14:49

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General

Target

2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe
Size

13.0MB
MD5

bd0b9ca3ef9979fe7bf7267264ffe05d
SHA1

d60a683d1143e12197bc593153480af7a6398de1
SHA256

651e2ea48089fe2457bc7d88d4df485139a1277b5cfc9126124caea1ba51520a
SHA512

11ac0b1debaf38aee96c49ad16ff75440ebf5636cf0a997dd9654caa62f65d4059921b65b8972231d7ea1171dbc6c677f9c292881a75d77a4691e87b52063f45
SSDEEP

6144:eXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:eXzuKJ8GD96ySzTcANnQMMMMMMMb

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\pnsbzgdc = "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
2632	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\pnsbzgdc\ImagePath = "C:\\Windows\\SysWOW64\\pnsbzgdc\\afssvukp.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
800	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

afssvukp.exe

pid	Process
2600	afssvukp.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

afssvukp.exe

description	pid	Process	procid_target
PID 2600 set thread context of 800	2600	afssvukp.exe	43

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2928	sc.exe
1652	sc.exe
2556	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.execmd.exesc.exesc.exenetsh.exesvchost.exe2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exesc.exeafssvukp.exe

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afssvukp.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exeafssvukp.exe

description	pid	Process	procid_target
PID 2708 wrote to memory of 2712	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	30
PID 2708 wrote to memory of 2712	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	30
PID 2708 wrote to memory of 2712	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	30
PID 2708 wrote to memory of 2712	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	30
PID 2708 wrote to memory of 2792	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	32
PID 2708 wrote to memory of 2792	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	32
PID 2708 wrote to memory of 2792	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	32
PID 2708 wrote to memory of 2792	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	32
PID 2708 wrote to memory of 2928	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	34
PID 2708 wrote to memory of 2928	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	34
PID 2708 wrote to memory of 2928	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	34
PID 2708 wrote to memory of 2928	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	34
PID 2708 wrote to memory of 1652	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	36
PID 2708 wrote to memory of 1652	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	36
PID 2708 wrote to memory of 1652	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	36
PID 2708 wrote to memory of 1652	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	36
PID 2708 wrote to memory of 2556	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	38
PID 2708 wrote to memory of 2556	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	38
PID 2708 wrote to memory of 2556	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	38
PID 2708 wrote to memory of 2556	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	38
PID 2708 wrote to memory of 2632	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	41
PID 2708 wrote to memory of 2632	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	41
PID 2708 wrote to memory of 2632	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	41
PID 2708 wrote to memory of 2632	2708	2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe	41
PID 2600 wrote to memory of 800	2600	afssvukp.exe	43
PID 2600 wrote to memory of 800	2600	afssvukp.exe	43
PID 2600 wrote to memory of 800	2600	afssvukp.exe	43
PID 2600 wrote to memory of 800	2600	afssvukp.exe	43
PID 2600 wrote to memory of 800	2600	afssvukp.exe	43
PID 2600 wrote to memory of 800	2600	afssvukp.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pnsbzgdc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\afssvukp.exe" C:\Windows\SysWOW64\pnsbzgdc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pnsbzgdc binPath= "C:\Windows\SysWOW64\pnsbzgdc\afssvukp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pnsbzgdc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pnsbzgdc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- 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:2632

C:\Windows\SysWOW64\pnsbzgdc\afssvukp.exe
C:\Windows\SysWOW64\pnsbzgdc\afssvukp.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_bd0b9ca3ef9979fe7bf7267264ffe05d_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- 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:800

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\afssvukp.exe

Filesize
10.2MB

MD5
85cd6cab46e084b40cae52317cbd9960

SHA1
ba201eab3c1907af84cc6581ed2409780e31b4d7

SHA256
4943147736181d97cc9fb0e4a65cafec62d559745614a064c8bd03f713173939

SHA512
24f0373c60a3e693ed402a130bf87913c06f95162c1e020380380a17222f4ca649293343b03ae8bb0933f074b36787e3010c2867a74175bcdfdf150f5ffb6d93

Download Submit
memory/800-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/800-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/800-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/800-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/800-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2708-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2708-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2708-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download