tofsee | d7fe9f760dfce3b7a6b53e5159d3b7af53cf7c1041af9bbb9f1e335d9946d74e

General

Target

2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe
Size

14.8MB
MD5

b82fd7f8c53a08352f6a9b9334e91beb
SHA1

1706f756e43a88d305fa8ef491e5d71b8505c3cc
SHA256

d7fe9f760dfce3b7a6b53e5159d3b7af53cf7c1041af9bbb9f1e335d9946d74e
SHA512

3e0abd797ac7aaef9861a7ff397d1370956fafc51839bc98aaea524d4c9853d13e91119ee24ce2eb9b6a99d2b476defa1a0995bd655b3468a20aab713604002d
SSDEEP

3072:wLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:NOMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4824	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\xnadccm\ImagePath = "C:\\Windows\\SysWOW64\\xnadccm\\ofbizycg.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe

Deletes itself 1 IoCs

pid	Process
1136	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4192	ofbizycg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4192 set thread context of 1136	4192	ofbizycg.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1560	sc.exe
3640	sc.exe
1628	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
3708	1184	WerFault.exe	81
552	4192	WerFault.exe	92

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	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ofbizycg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 4616	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	82
PID 1184 wrote to memory of 4616	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	82
PID 1184 wrote to memory of 4616	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	82
PID 1184 wrote to memory of 2972	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	84
PID 1184 wrote to memory of 2972	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	84
PID 1184 wrote to memory of 2972	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	84
PID 1184 wrote to memory of 1560	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	86
PID 1184 wrote to memory of 1560	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	86
PID 1184 wrote to memory of 1560	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	86
PID 1184 wrote to memory of 3640	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	88
PID 1184 wrote to memory of 3640	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	88
PID 1184 wrote to memory of 3640	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	88
PID 1184 wrote to memory of 1628	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	90
PID 1184 wrote to memory of 1628	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	90
PID 1184 wrote to memory of 1628	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	90
PID 1184 wrote to memory of 4824	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	93
PID 1184 wrote to memory of 4824	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	93
PID 1184 wrote to memory of 4824	1184	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	93
PID 4192 wrote to memory of 1136	4192	ofbizycg.exe	98
PID 4192 wrote to memory of 1136	4192	ofbizycg.exe	98
PID 4192 wrote to memory of 1136	4192	ofbizycg.exe	98
PID 4192 wrote to memory of 1136	4192	ofbizycg.exe	98
PID 4192 wrote to memory of 1136	4192	ofbizycg.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xnadccm\
  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\ofbizycg.exe" C:\Windows\SysWOW64\xnadccm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xnadccm binPath= "C:\Windows\SysWOW64\xnadccm\ofbizycg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xnadccm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xnadccm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1628
- 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:4824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 1036
  2⤵
  - Program crash
  PID:3708

C:\Windows\SysWOW64\xnadccm\ofbizycg.exe
C:\Windows\SysWOW64\xnadccm\ofbizycg.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4192
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1136
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 508
  2⤵
  - Program crash
  PID:552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1184 -ip 1184
1⤵
PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4192 -ip 4192
1⤵
PID:2912

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\ofbizycg.exe

Filesize
10.0MB

MD5
6281f5a39c1d8c6b9ea09052b489b25c

SHA1
c0fa6f5c96b7af64797f67903bf73330450d5437

SHA256
ce6f198ade18423e7a2858cb487c955f02cb62459225e45310042a43ff65eee7

SHA512
49271ae5240a494d16a896537b6f63bcbae8c9ad26906da9ff459f17f8c2a86b303cbedf48922eca47227d97d34e8ae4502a033cc2631a4695bde443d5be1924

Download Submit
memory/1136-14-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/1136-18-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/1136-16-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/1184-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1184-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1184-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1184-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1184-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1184-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4192-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4192-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4192-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4192-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads