tofsee | 918d76c3da20a1e7082d69e7a472d23b12ab7d6b360caa812712a22639c7c061

Analysis

max time kernel
148s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 18:45

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General

Target

2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe
Size

12.0MB
MD5

08263a92df611742be4e6311c617f031
SHA1

a835a4d8fbdbac453b044cfdba2d25868a5d95f0
SHA256

918d76c3da20a1e7082d69e7a472d23b12ab7d6b360caa812712a22639c7c061
SHA512

5e519cba6799dd21726a2aab080a64b93207a6625014d5e29b25cbeb03a42cf822579415c92bea1904faa85b146d935c4b09a2080a99b9a8df9574b0e25dbf5f
SSDEEP

196608:UyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:pXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

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\avnkvocv = "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
2960	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\avnkvocv\ImagePath = "C:\\Windows\\SysWOW64\\avnkvocv\\bsovmlpt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2684	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2116	bsovmlpt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 2684	2116	bsovmlpt.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2940	sc.exe
2772	sc.exe
2796	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	netsh.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	bsovmlpt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 796 wrote to memory of 2924	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	29
PID 796 wrote to memory of 2924	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	29
PID 796 wrote to memory of 2924	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	29
PID 796 wrote to memory of 2924	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	29
PID 796 wrote to memory of 2380	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	31
PID 796 wrote to memory of 2380	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	31
PID 796 wrote to memory of 2380	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	31
PID 796 wrote to memory of 2380	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	31
PID 796 wrote to memory of 2940	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	33
PID 796 wrote to memory of 2940	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	33
PID 796 wrote to memory of 2940	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	33
PID 796 wrote to memory of 2940	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	33
PID 796 wrote to memory of 2772	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	35
PID 796 wrote to memory of 2772	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	35
PID 796 wrote to memory of 2772	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	35
PID 796 wrote to memory of 2772	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	35
PID 796 wrote to memory of 2796	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	37
PID 796 wrote to memory of 2796	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	37
PID 796 wrote to memory of 2796	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	37
PID 796 wrote to memory of 2796	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	37
PID 796 wrote to memory of 2960	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	39
PID 796 wrote to memory of 2960	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	39
PID 796 wrote to memory of 2960	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	39
PID 796 wrote to memory of 2960	796	2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe	39
PID 2116 wrote to memory of 2684	2116	bsovmlpt.exe	42
PID 2116 wrote to memory of 2684	2116	bsovmlpt.exe	42
PID 2116 wrote to memory of 2684	2116	bsovmlpt.exe	42
PID 2116 wrote to memory of 2684	2116	bsovmlpt.exe	42
PID 2116 wrote to memory of 2684	2116	bsovmlpt.exe	42
PID 2116 wrote to memory of 2684	2116	bsovmlpt.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\avnkvocv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bsovmlpt.exe" C:\Windows\SysWOW64\avnkvocv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create avnkvocv binPath= "C:\Windows\SysWOW64\avnkvocv\bsovmlpt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description avnkvocv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start avnkvocv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2960

C:\Windows\SysWOW64\avnkvocv\bsovmlpt.exe
C:\Windows\SysWOW64\avnkvocv\bsovmlpt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_08263a92df611742be4e6311c617f031_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116
- 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:2684

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\bsovmlpt.exe

Filesize
10.3MB

MD5
e12f1c6e3c4104cf969dc4220556a063

SHA1
d98f742c6abc2093eacb1f61757653b7c5e66236

SHA256
e57c591112513e8804848631e1cb5b9a45b7345dec41fe44101126a451e606c9

SHA512
d8b9a0d8df53dc2c14a708e80720974facfa7c5d449abefcd98c585920f19aa7420e1a3cee2fabc17211cb4f1de605110042e01d7a9b9c6dd2c8ad9915bb6435

Download Submit
memory/796-6-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/796-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/796-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/796-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/796-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/796-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2116-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2684-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2684-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads