tofsee | 2bdbcc7f44fd98dd30ccdb2396267ec841f5b33c17b46c87daeed6baaa1f86cc

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:21

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General

Target

2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe
Size

10.4MB
MD5

8305103a549a75d8a52f571245bce8fe
SHA1

2ea94c7d17665b69c590b856aa87dfd3f5ee58b0
SHA256

2bdbcc7f44fd98dd30ccdb2396267ec841f5b33c17b46c87daeed6baaa1f86cc
SHA512

40e27b74d6939795d03487d168c5e25984e2c8b774470eb0399f269d66c00b826184e2bb11507479a8e4909dd8d9f33ef91bffc4a7d8b7b65c38550dc52bfc2a
SSDEEP

24576:qEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ3:Dfot

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\zydpygor = "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
2832	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\zydpygor\ImagePath = "C:\\Windows\\SysWOW64\\zydpygor\\wihvgqys.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3012	wihvgqys.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3012 set thread context of 3000	3012	wihvgqys.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2956	sc.exe
3020	sc.exe
2808	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_8305103a549a75d8a52f571245bce8fe_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	wihvgqys.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2352	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	30
PID 2428 wrote to memory of 2352	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	30
PID 2428 wrote to memory of 2352	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	30
PID 2428 wrote to memory of 2352	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	30
PID 2428 wrote to memory of 2528	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	32
PID 2428 wrote to memory of 2528	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	32
PID 2428 wrote to memory of 2528	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	32
PID 2428 wrote to memory of 2528	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	32
PID 2428 wrote to memory of 3020	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	34
PID 2428 wrote to memory of 3020	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	34
PID 2428 wrote to memory of 3020	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	34
PID 2428 wrote to memory of 3020	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	34
PID 2428 wrote to memory of 2808	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	36
PID 2428 wrote to memory of 2808	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	36
PID 2428 wrote to memory of 2808	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	36
PID 2428 wrote to memory of 2808	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	36
PID 2428 wrote to memory of 2956	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	38
PID 2428 wrote to memory of 2956	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	38
PID 2428 wrote to memory of 2956	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	38
PID 2428 wrote to memory of 2956	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	38
PID 2428 wrote to memory of 2832	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	41
PID 2428 wrote to memory of 2832	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	41
PID 2428 wrote to memory of 2832	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	41
PID 2428 wrote to memory of 2832	2428	2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe	41
PID 3012 wrote to memory of 3000	3012	wihvgqys.exe	43
PID 3012 wrote to memory of 3000	3012	wihvgqys.exe	43
PID 3012 wrote to memory of 3000	3012	wihvgqys.exe	43
PID 3012 wrote to memory of 3000	3012	wihvgqys.exe	43
PID 3012 wrote to memory of 3000	3012	wihvgqys.exe	43
PID 3012 wrote to memory of 3000	3012	wihvgqys.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zydpygor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wihvgqys.exe" C:\Windows\SysWOW64\zydpygor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zydpygor binPath= "C:\Windows\SysWOW64\zydpygor\wihvgqys.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zydpygor "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zydpygor
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2956
- 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:2832

C:\Windows\SysWOW64\zydpygor\wihvgqys.exe
C:\Windows\SysWOW64\zydpygor\wihvgqys.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_8305103a549a75d8a52f571245bce8fe_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- 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:3000

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\wihvgqys.exe

Filesize
14.8MB

MD5
b2e3db3109db66f48eb825cc5edce1d4

SHA1
d3cf0eefa4e586dcbbcaf1c16c1ee8c0d1ea994e

SHA256
e31c109d2fd258cadf4f8ad8d266611c5b51c71ad19306a5ade59e072543e40e

SHA512
d59947d23dbf79474f9c5101da7ac236647f378db429c272c2d6ba124ecfdaefe980bae0fbeee5152365d7f1ca19359180278f6933fbb3af5e1ac1447a09a059

Download Submit
memory/2428-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2428-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2428-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2428-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2428-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2428-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3000-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3000-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3000-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3000-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3012-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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