tofsee | c46a5bf2d8001c12538128dec7dbc3563ee98be85f7403624bf48b9e4725d82e

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 16:43

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General

Target

2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe
Size

11.3MB
MD5

08354967a1a2f5d0c78d5c7d0a80a9bf
SHA1

65c97fda58d573ad7aaa0677c7d4323a35bd67ed
SHA256

c46a5bf2d8001c12538128dec7dbc3563ee98be85f7403624bf48b9e4725d82e
SHA512

66f404ddcba83f7c5514a8c5f00254177a079361bb72fa0c16fa8094c021b231adf9cc9c978db7f00c261b88c86cb5cac24aac6f20b818847943ac80d995d271
SSDEEP

3072:LLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:yOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\zphnwxqu = "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
2788	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\zphnwxqu\ImagePath = "C:\\Windows\\SysWOW64\\zphnwxqu\\tnnepypr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2172	tnnepypr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2172 set thread context of 2804	2172	tnnepypr.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2120	sc.exe
2456	sc.exe
1712	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	netsh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tnnepypr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 2320	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	30
PID 2480 wrote to memory of 2320	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	30
PID 2480 wrote to memory of 2320	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	30
PID 2480 wrote to memory of 2320	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	30
PID 2480 wrote to memory of 1228	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	32
PID 2480 wrote to memory of 1228	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	32
PID 2480 wrote to memory of 1228	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	32
PID 2480 wrote to memory of 1228	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	32
PID 2480 wrote to memory of 1712	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	34
PID 2480 wrote to memory of 1712	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	34
PID 2480 wrote to memory of 1712	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	34
PID 2480 wrote to memory of 1712	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	34
PID 2480 wrote to memory of 2120	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	36
PID 2480 wrote to memory of 2120	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	36
PID 2480 wrote to memory of 2120	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	36
PID 2480 wrote to memory of 2120	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	36
PID 2480 wrote to memory of 2456	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	38
PID 2480 wrote to memory of 2456	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	38
PID 2480 wrote to memory of 2456	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	38
PID 2480 wrote to memory of 2456	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	38
PID 2172 wrote to memory of 2804	2172	tnnepypr.exe	41
PID 2172 wrote to memory of 2804	2172	tnnepypr.exe	41
PID 2172 wrote to memory of 2804	2172	tnnepypr.exe	41
PID 2172 wrote to memory of 2804	2172	tnnepypr.exe	41
PID 2172 wrote to memory of 2804	2172	tnnepypr.exe	41
PID 2172 wrote to memory of 2804	2172	tnnepypr.exe	41
PID 2480 wrote to memory of 2788	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	42
PID 2480 wrote to memory of 2788	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	42
PID 2480 wrote to memory of 2788	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	42
PID 2480 wrote to memory of 2788	2480	2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zphnwxqu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnnepypr.exe" C:\Windows\SysWOW64\zphnwxqu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zphnwxqu binPath= "C:\Windows\SysWOW64\zphnwxqu\tnnepypr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zphnwxqu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2120
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zphnwxqu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2456
- 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:2788

C:\Windows\SysWOW64\zphnwxqu\tnnepypr.exe
C:\Windows\SysWOW64\zphnwxqu\tnnepypr.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-19_08354967a1a2f5d0c78d5c7d0a80a9bf_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- 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:2804

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\tnnepypr.exe

Filesize
10.1MB

MD5
866468cdb4e7950fb91b1a19920a033b

SHA1
d07b41b4a5f9e97107bde351293a5dbd82024d3f

SHA256
4ded9add413cb0f6d6d9291d34349ff10781e543eae1bd23c0d4468c70998827

SHA512
e1f43df2c0bb8e0f848dda22ae440a88fee70e6dc35c18557655cc71532b5834566cca9107f530ef481498b2aeae7f076590460e0ff38fed6160993f7be84e5d

Download Submit
memory/2172-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2480-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2480-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2480-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2480-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2480-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2804-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2804-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2804-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2804-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads