tofsee | ac175fef445c08ccff4525c5f47c054669484534dd987736c49e8032323b790c

Analysis

max time kernel
147s
max time network
127s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 18:52

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General

Target

2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe
Size

11.4MB
MD5

ab9ec8ebe9690afe05cff8a25153d1f8
SHA1

c3dc0621e73afa945a7ef399fa5872342b102629
SHA256

ac175fef445c08ccff4525c5f47c054669484534dd987736c49e8032323b790c
SHA512

9d2bc692eec1313359d66345fd0784d595c86ce6129156016ba847feb6c3dc410924c3f9ce078abfd1571bbc9fd91ed7a40a16d322e66d45e9ea2fdf0cd94d6b
SSDEEP

24576:d6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQg:MWdLQk

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\hwyoeylx = "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
2752	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\hwyoeylx\ImagePath = "C:\\Windows\\SysWOW64\\hwyoeylx\\bbcnijhp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2908	bbcnijhp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2908 set thread context of 2648	2908	bbcnijhp.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2768	sc.exe
2876	sc.exe
868	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	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	bbcnijhp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.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 2280 wrote to memory of 2556	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	31
PID 2280 wrote to memory of 2556	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	31
PID 2280 wrote to memory of 2556	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	31
PID 2280 wrote to memory of 2556	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	31
PID 2280 wrote to memory of 1620	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	33
PID 2280 wrote to memory of 1620	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	33
PID 2280 wrote to memory of 1620	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	33
PID 2280 wrote to memory of 1620	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	33
PID 2280 wrote to memory of 868	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	35
PID 2280 wrote to memory of 868	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	35
PID 2280 wrote to memory of 868	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	35
PID 2280 wrote to memory of 868	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	35
PID 2280 wrote to memory of 2768	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	37
PID 2280 wrote to memory of 2768	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	37
PID 2280 wrote to memory of 2768	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	37
PID 2280 wrote to memory of 2768	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	37
PID 2280 wrote to memory of 2876	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	39
PID 2280 wrote to memory of 2876	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	39
PID 2280 wrote to memory of 2876	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	39
PID 2280 wrote to memory of 2876	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	39
PID 2280 wrote to memory of 2752	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	41
PID 2280 wrote to memory of 2752	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	41
PID 2280 wrote to memory of 2752	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	41
PID 2280 wrote to memory of 2752	2280	2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe	41
PID 2908 wrote to memory of 2648	2908	bbcnijhp.exe	44
PID 2908 wrote to memory of 2648	2908	bbcnijhp.exe	44
PID 2908 wrote to memory of 2648	2908	bbcnijhp.exe	44
PID 2908 wrote to memory of 2648	2908	bbcnijhp.exe	44
PID 2908 wrote to memory of 2648	2908	bbcnijhp.exe	44
PID 2908 wrote to memory of 2648	2908	bbcnijhp.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hwyoeylx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bbcnijhp.exe" C:\Windows\SysWOW64\hwyoeylx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hwyoeylx binPath= "C:\Windows\SysWOW64\hwyoeylx\bbcnijhp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hwyoeylx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hwyoeylx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- 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:2752

C:\Windows\SysWOW64\hwyoeylx\bbcnijhp.exe
C:\Windows\SysWOW64\hwyoeylx\bbcnijhp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_ab9ec8ebe9690afe05cff8a25153d1f8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908
- 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:2648

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\bbcnijhp.exe

Filesize
14.3MB

MD5
b47b2cc253e834796d778a6e56fba493

SHA1
f83f4aadb41c540bcfac5abbb61f8e1661b01d4f

SHA256
e06f912a077e4b3586916b9b2dc73d5d31b160d1599005ab0396410b005bba0a

SHA512
b24e8ec8cbc118f3476eba0ef66047bdbac6d7f96705ec4280251d1e2d4fa5d98e627a6ea6c65f0d385d46d7a6d487d10ed190ff5b3cdc2837427d06b29e43e1

Download Submit
memory/2280-6-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2280-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2280-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2280-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2648-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2908-15-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads