tofsee | 1e5987d8df27ee0acc7e6028cff8bbd80467d86fe4155a72e43a13f611f5cfb9

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
26/12/2024, 20:12

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General

Target

2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe
Size

12.3MB
MD5

1d4ae3864e8d239273636e01884abbab
SHA1

a9392dc5b5ec50e26d0508bea5e9736659ad7a77
SHA256

1e5987d8df27ee0acc7e6028cff8bbd80467d86fe4155a72e43a13f611f5cfb9
SHA512

b9fb32811fcbcd923a7fd22b681aa2bf8164a65679c4a1f2b2eb0460ed3bd2a42d800682f688f2272a42ca846907b6b74acf4e34e6528af5d02f8d2a9324ec5f
SSDEEP

3072:xLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:0OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\xhuwimov = "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
2832	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\xhuwimov\ImagePath = "C:\\Windows\\SysWOW64\\xhuwimov\\rielcbfj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	rielcbfj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2784	2788	rielcbfj.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2164	sc.exe
2160	sc.exe
2624	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	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rielcbfj.exe
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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 3028	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	31
PID 1708 wrote to memory of 3028	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	31
PID 1708 wrote to memory of 3028	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	31
PID 1708 wrote to memory of 3028	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	31
PID 1708 wrote to memory of 2892	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	33
PID 1708 wrote to memory of 2892	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	33
PID 1708 wrote to memory of 2892	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	33
PID 1708 wrote to memory of 2892	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	33
PID 1708 wrote to memory of 2160	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	35
PID 1708 wrote to memory of 2160	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	35
PID 1708 wrote to memory of 2160	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	35
PID 1708 wrote to memory of 2160	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	35
PID 1708 wrote to memory of 2624	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	37
PID 1708 wrote to memory of 2624	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	37
PID 1708 wrote to memory of 2624	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	37
PID 1708 wrote to memory of 2624	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	37
PID 1708 wrote to memory of 2164	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	39
PID 1708 wrote to memory of 2164	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	39
PID 1708 wrote to memory of 2164	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	39
PID 1708 wrote to memory of 2164	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	39
PID 2788 wrote to memory of 2784	2788	rielcbfj.exe	42
PID 2788 wrote to memory of 2784	2788	rielcbfj.exe	42
PID 2788 wrote to memory of 2784	2788	rielcbfj.exe	42
PID 2788 wrote to memory of 2784	2788	rielcbfj.exe	42
PID 2788 wrote to memory of 2784	2788	rielcbfj.exe	42
PID 2788 wrote to memory of 2784	2788	rielcbfj.exe	42
PID 1708 wrote to memory of 2832	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	43
PID 1708 wrote to memory of 2832	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	43
PID 1708 wrote to memory of 2832	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	43
PID 1708 wrote to memory of 2832	1708	2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xhuwimov\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rielcbfj.exe" C:\Windows\SysWOW64\xhuwimov\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xhuwimov binPath= "C:\Windows\SysWOW64\xhuwimov\rielcbfj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xhuwimov "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xhuwimov
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2164
- 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:2832

C:\Windows\SysWOW64\xhuwimov\rielcbfj.exe
C:\Windows\SysWOW64\xhuwimov\rielcbfj.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2784

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\rielcbfj.exe

Filesize
12.0MB

MD5
eb73cb7808742759b55e8028762c9848

SHA1
e1e94764c7eaa1821b4471b4946dd085b39747f4

SHA256
287962ba40eaba4f8949856164294a653df5b4ae7b5a467267e4b222aababd8b

SHA512
36baa7989339d158bd4053d7445893787fbc0dc4e49a0e4f94af4e09e868465f9226bc7c0ea113c70835f0508e312707f3bfbe97695b71e26403d2f7d3ef0ba3

Download Submit
memory/1708-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1708-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1708-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/1708-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2784-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads