tofsee | 0ce4c0093fe649941ca157dd892d42b0509692bf95956ada81094b17922d30cf

Analysis

max time kernel
145s
max time network
123s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 20:28

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General

Target

2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe
Size

11.7MB
MD5

e83049b18c14959ed27446ef0efceba5
SHA1

283041dc1182663450547935b60ec42709412eda
SHA256

0ce4c0093fe649941ca157dd892d42b0509692bf95956ada81094b17922d30cf
SHA512

c7b8775c66e9bbf9bb0c8e0bb13cd8ffefa49e1649f50714fae6f835bd2a5b0ae3652d430a952625428e6b620371bb99be04319e7f10b1cd840db50be20caaf6
SSDEEP

3072:fLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:WOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\qemqbdlh = "0"	svchost.exe

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
2752	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\qemqbdlh\ImagePath = "C:\\Windows\\SysWOW64\\qemqbdlh\\ucrvigpp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2644	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2148	ucrvigpp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2148 set thread context of 2644	2148	ucrvigpp.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2216	sc.exe
2844	sc.exe
2932	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

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	2024-12-29_e83049b18c14959ed27446ef0efceba5_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ucrvigpp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2520	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	30
PID 1916 wrote to memory of 2520	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	30
PID 1916 wrote to memory of 2520	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	30
PID 1916 wrote to memory of 2520	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	30
PID 1916 wrote to memory of 1992	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	32
PID 1916 wrote to memory of 1992	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	32
PID 1916 wrote to memory of 1992	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	32
PID 1916 wrote to memory of 1992	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	32
PID 1916 wrote to memory of 2216	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	34
PID 1916 wrote to memory of 2216	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	34
PID 1916 wrote to memory of 2216	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	34
PID 1916 wrote to memory of 2216	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	34
PID 1916 wrote to memory of 2844	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	36
PID 1916 wrote to memory of 2844	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	36
PID 1916 wrote to memory of 2844	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	36
PID 1916 wrote to memory of 2844	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	36
PID 1916 wrote to memory of 2932	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	38
PID 1916 wrote to memory of 2932	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	38
PID 1916 wrote to memory of 2932	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	38
PID 1916 wrote to memory of 2932	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	38
PID 2148 wrote to memory of 2644	2148	ucrvigpp.exe	41
PID 2148 wrote to memory of 2644	2148	ucrvigpp.exe	41
PID 2148 wrote to memory of 2644	2148	ucrvigpp.exe	41
PID 2148 wrote to memory of 2644	2148	ucrvigpp.exe	41
PID 2148 wrote to memory of 2644	2148	ucrvigpp.exe	41
PID 2148 wrote to memory of 2644	2148	ucrvigpp.exe	41
PID 1916 wrote to memory of 2752	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	42
PID 1916 wrote to memory of 2752	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	42
PID 1916 wrote to memory of 2752	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	42
PID 1916 wrote to memory of 2752	1916	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qemqbdlh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ucrvigpp.exe" C:\Windows\SysWOW64\qemqbdlh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qemqbdlh binPath= "C:\Windows\SysWOW64\qemqbdlh\ucrvigpp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qemqbdlh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qemqbdlh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- 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:2752

C:\Windows\SysWOW64\qemqbdlh\ucrvigpp.exe
C:\Windows\SysWOW64\qemqbdlh\ucrvigpp.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2644

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

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

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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Downloads

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

Filesize
13.1MB

MD5
7e5e20c897a6f5564e1d4fb90940b894

SHA1
aac1c70761329560034d9976e2f1cd0e9e522174

SHA256
7d50a8b18157f50b07b61cd73f026e62aa220df139b69c4c1a8d779bbfb857e0

SHA512
be90f263a5ab8776bc33f6438e0c02c43efeb1d9eebb02b599f9a1e90b5d324472e771247155cd2da7a52adf514715604948780085d3926deddb54cbaa42748d

Download Submit
memory/1916-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1916-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1916-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/1916-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1916-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1916-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2148-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2644-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads