tofsee | ee06a44cd6bc5c852ef5e3e26ce0a11fef7502cdca6b1ac98dfe012770d22e11

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 14:03

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General

Target

2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe
Size

11.2MB
MD5

bc69fe693d7847a09ad69fef17f7827a
SHA1

e769da6a06c64a656686f9ca39b01cdea4decc60
SHA256

ee06a44cd6bc5c852ef5e3e26ce0a11fef7502cdca6b1ac98dfe012770d22e11
SHA512

ab887575c2c99f1ee19e7d7cfd6ee9d13ab9930191e3b4fc0f69dae07c11b386462e7ec09e53f02802b305e14c60b03bdaecc141687e88065483a18d824cdf5d
SSDEEP

6144:0LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQJ:pTYe+D2jFu+iZoUFhAzG

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\chdvbbt = "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
2668	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\chdvbbt\ImagePath = "C:\\Windows\\SysWOW64\\chdvbbt\\zqmtkjnr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1616	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2756	zqmtkjnr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 1616	2756	zqmtkjnr.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2752	sc.exe
2784	sc.exe
2868	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	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zqmtkjnr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2888	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	31
PID 2712 wrote to memory of 2888	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	31
PID 2712 wrote to memory of 2888	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	31
PID 2712 wrote to memory of 2888	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	31
PID 2712 wrote to memory of 2880	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	33
PID 2712 wrote to memory of 2880	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	33
PID 2712 wrote to memory of 2880	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	33
PID 2712 wrote to memory of 2880	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	33
PID 2712 wrote to memory of 2752	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	35
PID 2712 wrote to memory of 2752	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	35
PID 2712 wrote to memory of 2752	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	35
PID 2712 wrote to memory of 2752	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	35
PID 2712 wrote to memory of 2784	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	37
PID 2712 wrote to memory of 2784	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	37
PID 2712 wrote to memory of 2784	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	37
PID 2712 wrote to memory of 2784	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	37
PID 2712 wrote to memory of 2868	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	39
PID 2712 wrote to memory of 2868	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	39
PID 2712 wrote to memory of 2868	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	39
PID 2712 wrote to memory of 2868	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	39
PID 2712 wrote to memory of 2668	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	42
PID 2712 wrote to memory of 2668	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	42
PID 2712 wrote to memory of 2668	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	42
PID 2712 wrote to memory of 2668	2712	2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe	42
PID 2756 wrote to memory of 1616	2756	zqmtkjnr.exe	44
PID 2756 wrote to memory of 1616	2756	zqmtkjnr.exe	44
PID 2756 wrote to memory of 1616	2756	zqmtkjnr.exe	44
PID 2756 wrote to memory of 1616	2756	zqmtkjnr.exe	44
PID 2756 wrote to memory of 1616	2756	zqmtkjnr.exe	44
PID 2756 wrote to memory of 1616	2756	zqmtkjnr.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\chdvbbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zqmtkjnr.exe" C:\Windows\SysWOW64\chdvbbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create chdvbbt binPath= "C:\Windows\SysWOW64\chdvbbt\zqmtkjnr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description chdvbbt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start chdvbbt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- 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:2668

C:\Windows\SysWOW64\chdvbbt\zqmtkjnr.exe
C:\Windows\SysWOW64\chdvbbt\zqmtkjnr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_bc69fe693d7847a09ad69fef17f7827a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- 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:1616

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\zqmtkjnr.exe

Filesize
10.4MB

MD5
a7613e19cf4f6f18d9317afc35337fbc

SHA1
4f7dd7e7205da1f3bdb25f83da719bea42b4267e

SHA256
e61d8aa45800c3f7f592887dfc87f2ee0a928b9933b4151e9f7e987c4fd6b98d

SHA512
b3020aa6a8c5832baaf1311adcb1588c0eaeeef30a99760279b40c6a48b4329ed35e1c7e5f4c789d60b55a7d76b0e42764e8dac19ce3bdf77e4a12e81b47f011

Download Submit
memory/1616-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1616-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1616-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1616-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1616-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

Filesize
1024KB

Download
memory/2712-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2712-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2712-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2712-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2756-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads