tofsee | 542d93c66cdf93aaa6ee3c39eb7b9a406b540b06a977b4e98c9bdd5d11b415f3

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 18:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe
Size

13.0MB
MD5

c1d8f60cd816d4a087ce756b9c2ccc80
SHA1

085038db8f60c8c169c1545ae7aa79798af6dba6
SHA256

542d93c66cdf93aaa6ee3c39eb7b9a406b540b06a977b4e98c9bdd5d11b415f3
SHA512

4fd3651e87e2be0405ef0617ea054fa05ac2be696134ba7f041f54171745df2111593fcbf0b74982ac54a0707dde6c118870eaac50adde69d4f7036a5d759f81
SSDEEP

24576:qpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttV:+oo

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\qlehorzh = "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
2856	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\qlehorzh\ImagePath = "C:\\Windows\\SysWOW64\\qlehorzh\\bdyexku.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	bdyexku.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 2716	2836	bdyexku.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2884	sc.exe
2108	sc.exe
2728	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bdyexku.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	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_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 2528 wrote to memory of 2500	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	30
PID 2528 wrote to memory of 2500	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	30
PID 2528 wrote to memory of 2500	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	30
PID 2528 wrote to memory of 2500	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	30
PID 2528 wrote to memory of 2488	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	32
PID 2528 wrote to memory of 2488	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	32
PID 2528 wrote to memory of 2488	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	32
PID 2528 wrote to memory of 2488	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	32
PID 2528 wrote to memory of 2108	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	34
PID 2528 wrote to memory of 2108	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	34
PID 2528 wrote to memory of 2108	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	34
PID 2528 wrote to memory of 2108	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	34
PID 2528 wrote to memory of 2728	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	36
PID 2528 wrote to memory of 2728	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	36
PID 2528 wrote to memory of 2728	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	36
PID 2528 wrote to memory of 2728	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	36
PID 2528 wrote to memory of 2884	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	38
PID 2528 wrote to memory of 2884	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	38
PID 2528 wrote to memory of 2884	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	38
PID 2528 wrote to memory of 2884	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	38
PID 2836 wrote to memory of 2716	2836	bdyexku.exe	41
PID 2836 wrote to memory of 2716	2836	bdyexku.exe	41
PID 2836 wrote to memory of 2716	2836	bdyexku.exe	41
PID 2836 wrote to memory of 2716	2836	bdyexku.exe	41
PID 2836 wrote to memory of 2716	2836	bdyexku.exe	41
PID 2836 wrote to memory of 2716	2836	bdyexku.exe	41
PID 2528 wrote to memory of 2856	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	42
PID 2528 wrote to memory of 2856	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	42
PID 2528 wrote to memory of 2856	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	42
PID 2528 wrote to memory of 2856	2528	2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qlehorzh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bdyexku.exe" C:\Windows\SysWOW64\qlehorzh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qlehorzh binPath= "C:\Windows\SysWOW64\qlehorzh\bdyexku.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qlehorzh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qlehorzh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- 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:2856

C:\Windows\SysWOW64\qlehorzh\bdyexku.exe
C:\Windows\SysWOW64\qlehorzh\bdyexku.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_c1d8f60cd816d4a087ce756b9c2ccc80_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- 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:2716

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\bdyexku.exe

Filesize
10.5MB

MD5
d0cb39a497c593316e541f7997ca057b

SHA1
d62c6ec71e4c48e438a2f4d135706d93623596c8

SHA256
f2c31e5e426d27838e01b7904662d52356f356a58fa6320db7bd224bfe546d68

SHA512
5dffe2953edea94406f8ef6df73609b11ca15f0255958b71cd45dbef5b53c1d6ab2b1571845780b4e65b34f7b20fad9b3efa4701d02479f0c0ed5595ea4ff607

Download Submit
memory/2528-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2528-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2528-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2528-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2528-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2716-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2836-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads