tofsee | d08f945304cbef1bc7e9b380f7321b692fd50fede584fbfc0829c13ae2eaedcc

Analysis

max time kernel
146s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
01-12-2024 17:47

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General

Target

2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe
Size

13.3MB
MD5

8771bbe1870e3f195a9799d11d221dcc
SHA1

5ed9ae508451faa8f2c5dd3b9d7922a8ba27a74a
SHA256

d08f945304cbef1bc7e9b380f7321b692fd50fede584fbfc0829c13ae2eaedcc
SHA512

2d75d2ec904cc69bc46d1d096f8ca7accfa264f776f7358825e9921a26e36e2067c7d09b8e5a9a17bfe4785a00b1f7649295def0ae50d82685ca5be0092c505a
SSDEEP

6144:+yXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:+yXzN8pXAdbbyyZtZfMMMMMMMb

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\zwmlvpxv = "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
2724	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\zwmlvpxv\ImagePath = "C:\\Windows\\SysWOW64\\zwmlvpxv\\zzyepdkn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	zzyepdkn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 3028	2676	zzyepdkn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2948	sc.exe
2688	sc.exe
2908	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_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	zzyepdkn.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 2932	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	30
PID 2612 wrote to memory of 2932	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	30
PID 2612 wrote to memory of 2932	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	30
PID 2612 wrote to memory of 2932	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	30
PID 2612 wrote to memory of 2136	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	32
PID 2612 wrote to memory of 2136	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	32
PID 2612 wrote to memory of 2136	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	32
PID 2612 wrote to memory of 2136	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	32
PID 2612 wrote to memory of 2948	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	34
PID 2612 wrote to memory of 2948	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	34
PID 2612 wrote to memory of 2948	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	34
PID 2612 wrote to memory of 2948	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	34
PID 2612 wrote to memory of 2688	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	36
PID 2612 wrote to memory of 2688	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	36
PID 2612 wrote to memory of 2688	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	36
PID 2612 wrote to memory of 2688	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	36
PID 2612 wrote to memory of 2908	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	38
PID 2612 wrote to memory of 2908	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	38
PID 2612 wrote to memory of 2908	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	38
PID 2612 wrote to memory of 2908	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	38
PID 2612 wrote to memory of 2724	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	41
PID 2612 wrote to memory of 2724	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	41
PID 2612 wrote to memory of 2724	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	41
PID 2612 wrote to memory of 2724	2612	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	41
PID 2676 wrote to memory of 3028	2676	zzyepdkn.exe	43
PID 2676 wrote to memory of 3028	2676	zzyepdkn.exe	43
PID 2676 wrote to memory of 3028	2676	zzyepdkn.exe	43
PID 2676 wrote to memory of 3028	2676	zzyepdkn.exe	43
PID 2676 wrote to memory of 3028	2676	zzyepdkn.exe	43
PID 2676 wrote to memory of 3028	2676	zzyepdkn.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zwmlvpxv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zzyepdkn.exe" C:\Windows\SysWOW64\zwmlvpxv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zwmlvpxv binPath= "C:\Windows\SysWOW64\zwmlvpxv\zzyepdkn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zwmlvpxv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zwmlvpxv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- 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:2724

C:\Windows\SysWOW64\zwmlvpxv\zzyepdkn.exe
C:\Windows\SysWOW64\zwmlvpxv\zzyepdkn.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- 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:3028

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\zzyepdkn.exe

Filesize
10.2MB

MD5
9773f3e298f961dd3836903af67f6c79

SHA1
a5ae23e1060759e0725db95159dcb4aa7e43ab64

SHA256
f8553214584117eb4cf60f8a9f6f64fad5347b362c87885fb7c1162e746a07a5

SHA512
530b1bfa2279c3f5f6d3d6e9905639a100d47c5dbd0dba9e0b45e0e623c9125e54d7e0f72c17580541984e3adb56420b02fd91be746dde7474eca0556e154f9d

Download Submit
memory/2612-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2612-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2612-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2612-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2612-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2612-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2676-15-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3028-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3028-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads