tofsee | 20b143a42530912526b25054ae421a45ae7aeb25891b0ad8b92089c03187cb11

General

Target

2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe
Size

14.6MB
MD5

5064cee5798d773cad820843b51d16e2
SHA1

e66564877d3ab5159df18a3b33e6e5d986abb001
SHA256

20b143a42530912526b25054ae421a45ae7aeb25891b0ad8b92089c03187cb11
SHA512

f444e8cc454bc0201a47c63fc78e8e8a12a87dd58614804ef7f28794c245bd371a13b38ee61275fbb937ca337c7f99721baa1c3eb263ff5abe9397bd18f2ba67
SSDEEP

49152:PqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:PqtYc3

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
544	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\ajmnzwzo\ImagePath = "C:\\Windows\\SysWOW64\\ajmnzwzo\\evdblgnb.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe

Deletes itself 1 IoCs

pid	Process
1560	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3932	evdblgnb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3932 set thread context of 1560	3932	evdblgnb.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4788	sc.exe
1824	sc.exe
1848	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1748	3932	WerFault.exe	99
4628	3668	WerFault.exe	82

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	evdblgnb.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	2025-02-03_5064cee5798d773cad820843b51d16e2_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 3112	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	86
PID 3668 wrote to memory of 3112	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	86
PID 3668 wrote to memory of 3112	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	86
PID 3668 wrote to memory of 4684	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	88
PID 3668 wrote to memory of 4684	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	88
PID 3668 wrote to memory of 4684	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	88
PID 3668 wrote to memory of 4788	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	91
PID 3668 wrote to memory of 4788	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	91
PID 3668 wrote to memory of 4788	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	91
PID 3668 wrote to memory of 1824	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	95
PID 3668 wrote to memory of 1824	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	95
PID 3668 wrote to memory of 1824	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	95
PID 3668 wrote to memory of 1848	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	97
PID 3668 wrote to memory of 1848	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	97
PID 3668 wrote to memory of 1848	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	97
PID 3932 wrote to memory of 1560	3932	evdblgnb.exe	100
PID 3932 wrote to memory of 1560	3932	evdblgnb.exe	100
PID 3932 wrote to memory of 1560	3932	evdblgnb.exe	100
PID 3932 wrote to memory of 1560	3932	evdblgnb.exe	100
PID 3932 wrote to memory of 1560	3932	evdblgnb.exe	100
PID 3668 wrote to memory of 544	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	102
PID 3668 wrote to memory of 544	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	102
PID 3668 wrote to memory of 544	3668	2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ajmnzwzo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\evdblgnb.exe" C:\Windows\SysWOW64\ajmnzwzo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ajmnzwzo binPath= "C:\Windows\SysWOW64\ajmnzwzo\evdblgnb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ajmnzwzo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ajmnzwzo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1848
- 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:544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3668 -s 652
  2⤵
  - Program crash
  PID:4628

C:\Windows\SysWOW64\ajmnzwzo\evdblgnb.exe
C:\Windows\SysWOW64\ajmnzwzo\evdblgnb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_5064cee5798d773cad820843b51d16e2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 532
  2⤵
  - Program crash
  PID:1748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3668 -ip 3668
1⤵
PID:1884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3932 -ip 3932
1⤵
PID:936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.9MB

MD5
f29417892dce11496283b972de6c17db

SHA1
92169bca8dd9c3a0baee493b5a7aed68dcfa9fe8

SHA256
7dcae750b86a5d7e0566fabcc931fa332bc69c15e3aae5a7150d0c2f5acff292

SHA512
97362fa5ef352af678d17bd99866ddc9f54414cce51771e82fb73f728bfdb8e87f87384bfa82b72e0b09263b0b47e4cc8068e6c0155087958a3dfa12abd65680

Download Submit
memory/1560-8-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/1560-14-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/1560-15-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/3668-1-0x0000000002E70000-0x0000000002F70000-memory.dmp

Filesize
1024KB

Download
memory/3668-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/3668-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3668-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3668-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/3668-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3932-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads