tofsee | 8ce486ceb12f06bb549a6d2ee456e0805f5019e4a35313bce08c6f36b7608177

Analysis

max time kernel
146s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30/08/2024, 22:50

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General

Target
2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe
Size 14.9MB
Sample240830-2spaps1emk
SHA256 8ce486ceb12f06bb549a6d2ee456e0805f5019e4a35313bce08c6f36b7608177
MD5 72eacd8c0200a968c6a409622545fc23
SHA1 79b47393103c7dc3a936e159fcc04f305214ffe6
SHA512 4cc3b990608ff68677d1cf4db332fb0e48df030d4af900038c1445d51f52eeeb50025818a8b82ee54ce434cc69de5cbfcba4d9ccb62c424d98c2ad40c1050dc4
SSDEEP 6144:G+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:G+r1IeSXMXc7LlxWV4Ug97GZ+ej
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee discovery evasion 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
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
608	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\ddbbmkhb\ImagePath = "C:\\Windows\\SysWOW64\\ddbbmkhb\\idkhgdza.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe

Deletes itself 1 IoCs

pid	Process
3988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4460	idkhgdza.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4460 set thread context of 3988	4460	idkhgdza.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4168	sc.exe
4820	sc.exe
4412	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	sc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	idkhgdza.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 4616	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	87
PID 3272 wrote to memory of 4616	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	87
PID 3272 wrote to memory of 4616	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	87
PID 3272 wrote to memory of 660	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	89
PID 3272 wrote to memory of 660	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	89
PID 3272 wrote to memory of 660	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	89
PID 3272 wrote to memory of 4412	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	91
PID 3272 wrote to memory of 4412	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	91
PID 3272 wrote to memory of 4412	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	91
PID 3272 wrote to memory of 4168	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	93
PID 3272 wrote to memory of 4168	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	93
PID 3272 wrote to memory of 4168	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	93
PID 3272 wrote to memory of 4820	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	97
PID 3272 wrote to memory of 4820	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	97
PID 3272 wrote to memory of 4820	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	97
PID 3272 wrote to memory of 608	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	100
PID 3272 wrote to memory of 608	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	100
PID 3272 wrote to memory of 608	3272	2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe	100
PID 4460 wrote to memory of 3988	4460	idkhgdza.exe	102
PID 4460 wrote to memory of 3988	4460	idkhgdza.exe	102
PID 4460 wrote to memory of 3988	4460	idkhgdza.exe	102
PID 4460 wrote to memory of 3988	4460	idkhgdza.exe	102
PID 4460 wrote to memory of 3988	4460	idkhgdza.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ddbbmkhb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\idkhgdza.exe" C:\Windows\SysWOW64\ddbbmkhb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ddbbmkhb binPath= "C:\Windows\SysWOW64\ddbbmkhb\idkhgdza.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ddbbmkhb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ddbbmkhb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4820
- 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:608

C:\Windows\SysWOW64\ddbbmkhb\idkhgdza.exe
C:\Windows\SysWOW64\ddbbmkhb\idkhgdza.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3988

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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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idkhgdza.exe

Path C:\Users\Admin\AppData\Local\Temp\idkhgdza.exe
Size 13.3MB
SHA256 058288b0127106e3cbe22a494442e9f9d8bb3947f19a5b3e44974f05066ff2cb
MD5 af3476f2e4789d3e20c91ee1c74ffd85
SHA1 6376961d67dc694f1841a2a9e451c18d4ce01171
SHA512 a6ac34899ef39cfff22b638585157cbce9a5ffa8b4f84864010060341b45b06ec360ab892e839e7087e1181d5d32d1657e088067abc6f561328b9f5d29a4aa80
SSDEEP 6144:U+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:U+r1IeSXMXc7LlxWV4Ug97GZ+ej
MD5 SHA1 SHA512 SSDEEP

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memory/3272-1-0x0000000000760000-0x0000000000860000-memory.dmp

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memory/3272-2-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/3272-7-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/3272-6-0x0000000000400000-0x000000000051A000-memory.dmp

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memory/3988-11-0x00000000009E0000-0x00000000009F5000-memory.dmp

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memory/3988-13-0x00000000009E0000-0x00000000009F5000-memory.dmp

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memory/3988-16-0x00000000009E0000-0x00000000009F5000-memory.dmp

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memory/4460-9-0x0000000000400000-0x000000000051A000-memory.dmp

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memory/4460-10-0x0000000000400000-0x000000000051A000-memory.dmp

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memory/4460-15-0x0000000000400000-0x000000000051A000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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