tofsee | bfda8b56d4225c736d8b35f242107c60fbb9312b87dfb14616e2533295029a95

Analysis

max time kernel
144s
max time network
133s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08/02/2025, 00:55

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General

Target

2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe
Size

12.0MB
MD5

57ba116755fef93ba55282cf56409ed0
SHA1

02d9196e81b661f0029c54bb469df4c3a4904480
SHA256

bfda8b56d4225c736d8b35f242107c60fbb9312b87dfb14616e2533295029a95
SHA512

483e018a426f9b0543a4694acb71969f01c5608d88f100125832d6e9833bd990239e2912a73e8b5215b349d286e09e6f797082e7dfc89a19f94576a91906dca1
SSDEEP

3072:JLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:MOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\lzpxfjfi = "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
2808	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\lzpxfjfi\ImagePath = "C:\\Windows\\SysWOW64\\lzpxfjfi\\bkejbavr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2700	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	bkejbavr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 2700	2856	bkejbavr.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2156	sc.exe
2908	sc.exe
2816	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	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkejbavr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 2976	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	29
PID 636 wrote to memory of 2976	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	29
PID 636 wrote to memory of 2976	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	29
PID 636 wrote to memory of 2976	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	29
PID 636 wrote to memory of 2172	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	31
PID 636 wrote to memory of 2172	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	31
PID 636 wrote to memory of 2172	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	31
PID 636 wrote to memory of 2172	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	31
PID 636 wrote to memory of 2156	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	33
PID 636 wrote to memory of 2156	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	33
PID 636 wrote to memory of 2156	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	33
PID 636 wrote to memory of 2156	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	33
PID 636 wrote to memory of 2908	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	35
PID 636 wrote to memory of 2908	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	35
PID 636 wrote to memory of 2908	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	35
PID 636 wrote to memory of 2908	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	35
PID 636 wrote to memory of 2816	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	37
PID 636 wrote to memory of 2816	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	37
PID 636 wrote to memory of 2816	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	37
PID 636 wrote to memory of 2816	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	37
PID 636 wrote to memory of 2808	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	39
PID 636 wrote to memory of 2808	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	39
PID 636 wrote to memory of 2808	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	39
PID 636 wrote to memory of 2808	636	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	39
PID 2856 wrote to memory of 2700	2856	bkejbavr.exe	42
PID 2856 wrote to memory of 2700	2856	bkejbavr.exe	42
PID 2856 wrote to memory of 2700	2856	bkejbavr.exe	42
PID 2856 wrote to memory of 2700	2856	bkejbavr.exe	42
PID 2856 wrote to memory of 2700	2856	bkejbavr.exe	42
PID 2856 wrote to memory of 2700	2856	bkejbavr.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lzpxfjfi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bkejbavr.exe" C:\Windows\SysWOW64\lzpxfjfi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lzpxfjfi binPath= "C:\Windows\SysWOW64\lzpxfjfi\bkejbavr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lzpxfjfi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lzpxfjfi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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:2808

C:\Windows\SysWOW64\lzpxfjfi\bkejbavr.exe
C:\Windows\SysWOW64\lzpxfjfi\bkejbavr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- 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:2700

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\bkejbavr.exe

Filesize
12.7MB

MD5
1ce6e5c4f608e43857fa84411e656e7a

SHA1
fa636af8fa2a71c057c163d37f0380e4b98ae8c3

SHA256
073217ee649b4003b39df11451fca87c37e0325c7aeca28131639b8b8a1ac262

SHA512
c3716596b5de15e0712e4eab075458a245fcaa8f6d486cdf38c4a4c8624a502cc3a729588cd192f858cb8d2455125cb87ef9a87dc518d3502aaa8a420c1cc38b

Download Submit
memory/636-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/636-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/636-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/636-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/636-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/636-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2700-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads