tofsee | aa0a760d2a1fdc180d28a272d318538aaee721173a72c6e8cd38493b430f6534

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 19:29

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General

Target

2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe
Size

12.0MB
MD5

c2df008e679b7a67db6925ba51d9ac6c
SHA1

cb0814dd84679657d32b9ecd69b4aa9a0f8f72d2
SHA256

aa0a760d2a1fdc180d28a272d318538aaee721173a72c6e8cd38493b430f6534
SHA512

ad17a6cab288318be0ea8b703912f0ea98f3df8d498adc5f9cadaa3411c6859d08f69518237c0ed38fbeb291e41c8540232d58b0553b627dabc478c5267b9e1f
SSDEEP

3072:0LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:xOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\pixmqlxd = "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
2756	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\pixmqlxd\ImagePath = "C:\\Windows\\SysWOW64\\pixmqlxd\\oopavwuc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1948	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2948	oopavwuc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2948 set thread context of 1948	2948	oopavwuc.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1372	sc.exe
2608	sc.exe
2720	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 opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oopavwuc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 2304	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	30
PID 2596 wrote to memory of 2304	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	30
PID 2596 wrote to memory of 2304	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	30
PID 2596 wrote to memory of 2304	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	30
PID 2596 wrote to memory of 1000	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	32
PID 2596 wrote to memory of 1000	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	32
PID 2596 wrote to memory of 1000	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	32
PID 2596 wrote to memory of 1000	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	32
PID 2596 wrote to memory of 1372	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	34
PID 2596 wrote to memory of 1372	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	34
PID 2596 wrote to memory of 1372	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	34
PID 2596 wrote to memory of 1372	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	34
PID 2596 wrote to memory of 2608	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	36
PID 2596 wrote to memory of 2608	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	36
PID 2596 wrote to memory of 2608	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	36
PID 2596 wrote to memory of 2608	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	36
PID 2596 wrote to memory of 2720	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	38
PID 2596 wrote to memory of 2720	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	38
PID 2596 wrote to memory of 2720	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	38
PID 2596 wrote to memory of 2720	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	38
PID 2948 wrote to memory of 1948	2948	oopavwuc.exe	41
PID 2948 wrote to memory of 1948	2948	oopavwuc.exe	41
PID 2948 wrote to memory of 1948	2948	oopavwuc.exe	41
PID 2948 wrote to memory of 1948	2948	oopavwuc.exe	41
PID 2948 wrote to memory of 1948	2948	oopavwuc.exe	41
PID 2948 wrote to memory of 1948	2948	oopavwuc.exe	41
PID 2596 wrote to memory of 2756	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	42
PID 2596 wrote to memory of 2756	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	42
PID 2596 wrote to memory of 2756	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	42
PID 2596 wrote to memory of 2756	2596	2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pixmqlxd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oopavwuc.exe" C:\Windows\SysWOW64\pixmqlxd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pixmqlxd binPath= "C:\Windows\SysWOW64\pixmqlxd\oopavwuc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pixmqlxd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pixmqlxd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- 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:2756

C:\Windows\SysWOW64\pixmqlxd\oopavwuc.exe
C:\Windows\SysWOW64\pixmqlxd\oopavwuc.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-31_c2df008e679b7a67db6925ba51d9ac6c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2948
- 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:1948

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\oopavwuc.exe

Filesize
11.8MB

MD5
8989056045d78838ecd0bd1717ba80c5

SHA1
ca8a496f47ae6ed1b48260f2e109d8d4816d454a

SHA256
0784309e27acf8c026e525b6b8de37ae7f86bb8e2f35da3cc92882f82ed09a19

SHA512
fc85f715a9d3f885f891b0c7cbfc37e263d62c43378f52f7144dc6686dab4dc1d47bb16508d60262b8678ab8dafb9c9eb40bfb124b13265c3df90829e83051e0

Download Submit
memory/1948-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1948-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1948-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1948-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1948-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2596-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2596-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2596-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2596-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2596-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2596-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2948-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads