tofsee | ec204d38cfcae36249dae54e9cf9d09294f443a396d40ad32c85ffa2e7bcbeee

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 20:27

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General

Target

2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe
Size

12.7MB
MD5

c8a017be648771367c0a450636071da5
SHA1

4732517baf98a7007f3e47150312b5944d1f623b
SHA256

ec204d38cfcae36249dae54e9cf9d09294f443a396d40ad32c85ffa2e7bcbeee
SHA512

997b4562b60789d77948dc95f127d50d6ec8a1eb7d6c4d34cf9887e6f3a8327f9f319171f3b891c7dd4b4fb731e8bf3555ec4d9cd655ee1ef4bfe2f510385d16
SSDEEP

3072:NLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:QOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\bjanwblt = "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
2780	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\bjanwblt\ImagePath = "C:\\Windows\\SysWOW64\\bjanwblt\\foinfezv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	foinfezv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2804	2736	foinfezv.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2880	sc.exe
2816	sc.exe
2856	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	foinfezv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-30_c8a017be648771367c0a450636071da5_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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 2132	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	30
PID 1260 wrote to memory of 2132	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	30
PID 1260 wrote to memory of 2132	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	30
PID 1260 wrote to memory of 2132	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	30
PID 1260 wrote to memory of 2520	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	32
PID 1260 wrote to memory of 2520	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	32
PID 1260 wrote to memory of 2520	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	32
PID 1260 wrote to memory of 2520	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	32
PID 1260 wrote to memory of 2880	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	34
PID 1260 wrote to memory of 2880	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	34
PID 1260 wrote to memory of 2880	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	34
PID 1260 wrote to memory of 2880	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	34
PID 1260 wrote to memory of 2816	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	36
PID 1260 wrote to memory of 2816	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	36
PID 1260 wrote to memory of 2816	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	36
PID 1260 wrote to memory of 2816	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	36
PID 1260 wrote to memory of 2856	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	38
PID 1260 wrote to memory of 2856	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	38
PID 1260 wrote to memory of 2856	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	38
PID 1260 wrote to memory of 2856	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	38
PID 2736 wrote to memory of 2804	2736	foinfezv.exe	41
PID 2736 wrote to memory of 2804	2736	foinfezv.exe	41
PID 2736 wrote to memory of 2804	2736	foinfezv.exe	41
PID 2736 wrote to memory of 2804	2736	foinfezv.exe	41
PID 2736 wrote to memory of 2804	2736	foinfezv.exe	41
PID 2736 wrote to memory of 2804	2736	foinfezv.exe	41
PID 1260 wrote to memory of 2780	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	42
PID 1260 wrote to memory of 2780	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	42
PID 1260 wrote to memory of 2780	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	42
PID 1260 wrote to memory of 2780	1260	2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bjanwblt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\foinfezv.exe" C:\Windows\SysWOW64\bjanwblt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bjanwblt binPath= "C:\Windows\SysWOW64\bjanwblt\foinfezv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bjanwblt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bjanwblt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2856
- 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:2780

C:\Windows\SysWOW64\bjanwblt\foinfezv.exe
C:\Windows\SysWOW64\bjanwblt\foinfezv.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-30_c8a017be648771367c0a450636071da5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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\foinfezv.exe

Filesize
11.2MB

MD5
344ce158c16a6e54948199aaf0653bdd

SHA1
24c5a6bc8f9945b2c131498607d7a699049039e2

SHA256
4536a8ca2170d25d27b6d0e1b7f95fc193e580776b4c1914590910f12d99b5a7

SHA512
5a639c2b83ad0f2ba90aecb7b38f7e9a8713c5784af4777077adb977df0617ce06ba35490c28c1fa58006d124e707ec85e12bd19106167b12a318776636d5cea

Download Submit
memory/1260-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1260-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1260-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1260-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1260-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/1260-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2736-13-0x0000000000400000-0x000000000044E000-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/2804-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2804-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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