tofsee | 85d8f4fd6c63e91d2782da9f3dd72d96204f995ed083867ed7519870067ac304

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-01-2025 18:33

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General

Target

2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe
Size

14.5MB
MD5

8cb343877091cfef4326d1070d6c2a08
SHA1

555662e3c47cfee82d5f9c9cc0df5d9a7f3486c3
SHA256

85d8f4fd6c63e91d2782da9f3dd72d96204f995ed083867ed7519870067ac304
SHA512

111a46a6245da0ecfe0a46579de8da4ca9d823a0aeac5b6b9cbb1626e548b18477514a4b73bded1dfe7e759d3d92605833ea1d2a229aa09c6f7d9206a7be9448
SSDEEP

24576:eEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZF:3fot

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\bpnrjjpu = "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
2852	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\bpnrjjpu\ImagePath = "C:\\Windows\\SysWOW64\\bpnrjjpu\\gibmtbpf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	gibmtbpf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2736	2808	gibmtbpf.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1724	sc.exe
2744	sc.exe
2824	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	2025-01-26_8cb343877091cfef4326d1070d6c2a08_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gibmtbpf.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2416	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	30
PID 2308 wrote to memory of 2416	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	30
PID 2308 wrote to memory of 2416	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	30
PID 2308 wrote to memory of 2416	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	30
PID 2308 wrote to memory of 1260	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	32
PID 2308 wrote to memory of 1260	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	32
PID 2308 wrote to memory of 1260	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	32
PID 2308 wrote to memory of 1260	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	32
PID 2308 wrote to memory of 1724	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	34
PID 2308 wrote to memory of 1724	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	34
PID 2308 wrote to memory of 1724	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	34
PID 2308 wrote to memory of 1724	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	34
PID 2308 wrote to memory of 2744	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	36
PID 2308 wrote to memory of 2744	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	36
PID 2308 wrote to memory of 2744	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	36
PID 2308 wrote to memory of 2744	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	36
PID 2308 wrote to memory of 2824	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	38
PID 2308 wrote to memory of 2824	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	38
PID 2308 wrote to memory of 2824	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	38
PID 2308 wrote to memory of 2824	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	38
PID 2808 wrote to memory of 2736	2808	gibmtbpf.exe	41
PID 2808 wrote to memory of 2736	2808	gibmtbpf.exe	41
PID 2808 wrote to memory of 2736	2808	gibmtbpf.exe	41
PID 2808 wrote to memory of 2736	2808	gibmtbpf.exe	41
PID 2808 wrote to memory of 2736	2808	gibmtbpf.exe	41
PID 2808 wrote to memory of 2736	2808	gibmtbpf.exe	41
PID 2308 wrote to memory of 2852	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	42
PID 2308 wrote to memory of 2852	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	42
PID 2308 wrote to memory of 2852	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	42
PID 2308 wrote to memory of 2852	2308	2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bpnrjjpu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gibmtbpf.exe" C:\Windows\SysWOW64\bpnrjjpu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bpnrjjpu binPath= "C:\Windows\SysWOW64\bpnrjjpu\gibmtbpf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bpnrjjpu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bpnrjjpu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- 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:2852

C:\Windows\SysWOW64\bpnrjjpu\gibmtbpf.exe
C:\Windows\SysWOW64\bpnrjjpu\gibmtbpf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_8cb343877091cfef4326d1070d6c2a08_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2736

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\gibmtbpf.exe

Filesize
11.6MB

MD5
87e35b46d469cb1c9a0e9717ea9b2b79

SHA1
a343646db539b164a8110fd27d2d96abddecb26f

SHA256
2afae0becbdbde4660dcbb760a6ab8d70556a29b76e42bd55edbd2d0dfce232f

SHA512
3b4716e0f8a9587a11324944d2c07ceb452a9623c47d4ab991b0eb9fe445fe462d9e403de44e1ba4f7221b31b88283d747f5b35e89dbd621e3630b0e886c68fd

Download Submit
memory/2308-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2308-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2308-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2308-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2736-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2736-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-8-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2736-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2736-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2808-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads