tofsee | 0406050c5a7682f4f7ff1f2ef234b7845e20b523678902da08aa3e30b4bd37b9

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 06:15

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General

Target

2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe
Size

12.3MB
MD5

b4225293c2f943563c10072c131c3b29
SHA1

5000ce755f6a7ca77cfc63cc623a66d600d0633f
SHA256

0406050c5a7682f4f7ff1f2ef234b7845e20b523678902da08aa3e30b4bd37b9
SHA512

12158bf3299a445b375274c04fb9b47c46445885775f86a739279ae98797cc2029f9c56308984b098f5060096e1c956309d159c845c8cd20c495a24247e32fa8
SSDEEP

393216:5XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXf:9

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\jibpavhd = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2176	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\jibpavhd\ImagePath = "C:\\Windows\\SysWOW64\\jibpavhd\\zhwanluu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2548	zhwanluu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2548 set thread context of 3028	2548	zhwanluu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2012	sc.exe
2720	sc.exe
2724	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	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	zhwanluu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 3000	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	30
PID 2836 wrote to memory of 3000	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	30
PID 2836 wrote to memory of 3000	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	30
PID 2836 wrote to memory of 3000	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	30
PID 2836 wrote to memory of 2572	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	32
PID 2836 wrote to memory of 2572	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	32
PID 2836 wrote to memory of 2572	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	32
PID 2836 wrote to memory of 2572	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	32
PID 2836 wrote to memory of 2720	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	34
PID 2836 wrote to memory of 2720	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	34
PID 2836 wrote to memory of 2720	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	34
PID 2836 wrote to memory of 2720	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	34
PID 2836 wrote to memory of 2724	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	36
PID 2836 wrote to memory of 2724	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	36
PID 2836 wrote to memory of 2724	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	36
PID 2836 wrote to memory of 2724	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	36
PID 2836 wrote to memory of 2012	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	38
PID 2836 wrote to memory of 2012	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	38
PID 2836 wrote to memory of 2012	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	38
PID 2836 wrote to memory of 2012	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	38
PID 2836 wrote to memory of 2176	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	41
PID 2836 wrote to memory of 2176	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	41
PID 2836 wrote to memory of 2176	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	41
PID 2836 wrote to memory of 2176	2836	2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe	41
PID 2548 wrote to memory of 3028	2548	zhwanluu.exe	43
PID 2548 wrote to memory of 3028	2548	zhwanluu.exe	43
PID 2548 wrote to memory of 3028	2548	zhwanluu.exe	43
PID 2548 wrote to memory of 3028	2548	zhwanluu.exe	43
PID 2548 wrote to memory of 3028	2548	zhwanluu.exe	43
PID 2548 wrote to memory of 3028	2548	zhwanluu.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jibpavhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zhwanluu.exe" C:\Windows\SysWOW64\jibpavhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jibpavhd binPath= "C:\Windows\SysWOW64\jibpavhd\zhwanluu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jibpavhd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jibpavhd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2012
- 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:2176

C:\Windows\SysWOW64\jibpavhd\zhwanluu.exe
C:\Windows\SysWOW64\jibpavhd\zhwanluu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b4225293c2f943563c10072c131c3b29_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548
- 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:3028

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\zhwanluu.exe

Filesize
13.3MB

MD5
c5a751e44c2b374f4bd7df1106774d8c

SHA1
11ac8a5d302435717bd8f10e0998c6b603d713c6

SHA256
aa988f835cc44c0755069886594c26f5e8434c747b95325b4b8ee6e1da3299db

SHA512
b2a558b5b85045583186c62d912b9477827ebbe1fe7750d5ec97731ae9c0ec49e737623634cbca778f2be9c57c979831ebd2c0ae7a394e4c12ebfaef5c86a991

Download Submit
memory/2548-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2836-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2836-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2836-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2836-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2836-1-0x00000000008C0000-0x00000000009C0000-memory.dmp

Filesize
1024KB

Download
memory/2836-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3028-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3028-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads