tofsee | 2dfad928ef74021ab59e72a6c2e7f8d5a763d45f04f2c751555de63b125b6713

General

Target

2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe
Size

13.4MB
MD5

b44485d73562a82ce03bf5a34394ac9f
SHA1

29b8e971473c51692d85dc6fe0ac87d196bde4b1
SHA256

2dfad928ef74021ab59e72a6c2e7f8d5a763d45f04f2c751555de63b125b6713
SHA512

57401dfab0e8e49c374f4f0b47a1c8576ed9e15663a8e13e2980386b2add048719ebed32bdbe718b15c611b45edb4492d90967b9d91791b976db09907b18b66c
SSDEEP

24576:bEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ3:ofot

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
3364	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\konkgcug\ImagePath = "C:\\Windows\\SysWOW64\\konkgcug\\aabmhigo.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe

Deletes itself 1 IoCs

pid	Process
3604	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
220	aabmhigo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 220 set thread context of 3604	220	aabmhigo.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
3632	sc.exe
2472	sc.exe
2508	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4696	4168	WerFault.exe	82
2736	220	WerFault.exe	98

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	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aabmhigo.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 32	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	88
PID 4168 wrote to memory of 32	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	88
PID 4168 wrote to memory of 32	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	88
PID 4168 wrote to memory of 1532	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	90
PID 4168 wrote to memory of 1532	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	90
PID 4168 wrote to memory of 1532	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	90
PID 4168 wrote to memory of 3632	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	92
PID 4168 wrote to memory of 3632	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	92
PID 4168 wrote to memory of 3632	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	92
PID 4168 wrote to memory of 2472	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	94
PID 4168 wrote to memory of 2472	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	94
PID 4168 wrote to memory of 2472	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	94
PID 4168 wrote to memory of 2508	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	96
PID 4168 wrote to memory of 2508	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	96
PID 4168 wrote to memory of 2508	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	96
PID 4168 wrote to memory of 3364	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	99
PID 4168 wrote to memory of 3364	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	99
PID 4168 wrote to memory of 3364	4168	2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe	99
PID 220 wrote to memory of 3604	220	aabmhigo.exe	104
PID 220 wrote to memory of 3604	220	aabmhigo.exe	104
PID 220 wrote to memory of 3604	220	aabmhigo.exe	104
PID 220 wrote to memory of 3604	220	aabmhigo.exe	104
PID 220 wrote to memory of 3604	220	aabmhigo.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\konkgcug\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:32
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aabmhigo.exe" C:\Windows\SysWOW64\konkgcug\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create konkgcug binPath= "C:\Windows\SysWOW64\konkgcug\aabmhigo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description konkgcug "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start konkgcug
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- 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:3364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4168 -s 1040
  2⤵
  - Program crash
  PID:4696

C:\Windows\SysWOW64\konkgcug\aabmhigo.exe
C:\Windows\SysWOW64\konkgcug\aabmhigo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_b44485d73562a82ce03bf5a34394ac9f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 512
  2⤵
  - Program crash
  PID:2736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4168 -ip 4168
1⤵
PID:2216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 220 -ip 220
1⤵
PID:3468

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\aabmhigo.exe

Filesize
12.4MB

MD5
a75a62e862580d74adb1b516372d70cc

SHA1
09a0fc4932066f7c09eed07ff4d05f0d4f84208c

SHA256
af9dd67f1583a7ce33474f070a4e1a6e87a317582fc87b1fc5865f497f524a3a

SHA512
7ca2a161da06fa45bdc47000db8762a18c87a1cf6b2da9083c6dd6e30e9816d4402fb00ef426dd798c44ff67e33011e89ca5c4e5e9a1bcaae0f304c2fc21bde2

Download Submit
memory/220-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/220-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/220-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/220-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3604-14-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/3604-16-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/3604-17-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/4168-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4168-2-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/4168-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4168-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4168-8-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/4168-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads