tofsee | 888b24f166ffdd2fda3837034bcaeb062cf10761323a69973e428049a7dfb1cb

General

Target

2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe
Size

13.3MB
MD5

a94221b87b1c15461a5b0171b8fc8d6c
SHA1

f5c1128fa4565abd48f88f5b62af5873c7d7349f
SHA256

888b24f166ffdd2fda3837034bcaeb062cf10761323a69973e428049a7dfb1cb
SHA512

9748ed77a31878ee308133f1e85786ac6ba73613566f62cf41234fbbd99ecd160a85341f402ef986f6c229b1711bfecc2310e1679f14feda24775787056c05da
SSDEEP

24576:uEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZq:HfotA

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
4976	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\rhihrbni\ImagePath = "C:\\Windows\\SysWOW64\\rhihrbni\\uhtqjwbl.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe

Deletes itself 1 IoCs

pid	Process
4664	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1908	uhtqjwbl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1908 set thread context of 4664	1908	uhtqjwbl.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4832	sc.exe
812	sc.exe
1592	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
3300	220	WerFault.exe	82
528	1908	WerFault.exe	96

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	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uhtqjwbl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 1484	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	86
PID 220 wrote to memory of 1484	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	86
PID 220 wrote to memory of 1484	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	86
PID 220 wrote to memory of 3524	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	88
PID 220 wrote to memory of 3524	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	88
PID 220 wrote to memory of 3524	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	88
PID 220 wrote to memory of 1592	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	90
PID 220 wrote to memory of 1592	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	90
PID 220 wrote to memory of 1592	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	90
PID 220 wrote to memory of 4832	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	92
PID 220 wrote to memory of 4832	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	92
PID 220 wrote to memory of 4832	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	92
PID 220 wrote to memory of 812	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	94
PID 220 wrote to memory of 812	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	94
PID 220 wrote to memory of 812	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	94
PID 220 wrote to memory of 4976	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	97
PID 220 wrote to memory of 4976	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	97
PID 220 wrote to memory of 4976	220	2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe	97
PID 1908 wrote to memory of 4664	1908	uhtqjwbl.exe	102
PID 1908 wrote to memory of 4664	1908	uhtqjwbl.exe	102
PID 1908 wrote to memory of 4664	1908	uhtqjwbl.exe	102
PID 1908 wrote to memory of 4664	1908	uhtqjwbl.exe	102
PID 1908 wrote to memory of 4664	1908	uhtqjwbl.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rhihrbni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uhtqjwbl.exe" C:\Windows\SysWOW64\rhihrbni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rhihrbni binPath= "C:\Windows\SysWOW64\rhihrbni\uhtqjwbl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rhihrbni "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rhihrbni
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:812
- 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:4976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 676
  2⤵
  - Program crash
  PID:3300

C:\Windows\SysWOW64\rhihrbni\uhtqjwbl.exe
C:\Windows\SysWOW64\rhihrbni\uhtqjwbl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_a94221b87b1c15461a5b0171b8fc8d6c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 516
  2⤵
  - Program crash
  PID:528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 220 -ip 220
1⤵
PID:2716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1908 -ip 1908
1⤵
PID:3116

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\uhtqjwbl.exe

Filesize
10.3MB

MD5
5349a8ef8ca967bde36d9261ed712f15

SHA1
cb38207ee1430bc4781a7b2f0d25c3605bea3fa2

SHA256
4788a7c613284b815b02b29660d175a940ed28822171bf0b4f145404b35a8dd2

SHA512
9e558a7835df822e240f690fbfacc7bf94bf94602d43419c3afa6a903d08ec2d0a7985e5537338636bf2950344b5f646cf6fc4c698b2f42b08e5c6ee6d1ec440

Download Submit
memory/220-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/220-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/220-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/220-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/220-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/220-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1908-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1908-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1908-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1908-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4664-14-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/4664-16-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/4664-17-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads