tofsee | ef2914c44cb8edd1d9f2d62c7998b3c0b6755cecb519a7904f646b5275daaef7

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 15:09

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General

Target

2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe
Size

12.6MB
MD5

a78ecc2e78673cbde05577052782667b
SHA1

02e34071dbcd50a81db917bfcd3938064832248c
SHA256

ef2914c44cb8edd1d9f2d62c7998b3c0b6755cecb519a7904f646b5275daaef7
SHA512

3e7d03c5d29d3a93436f42635c49b0c91f428881a9871c06623105675c87566983b05d3d2758cacfb401f1686d16988443eac5e7d6de036c683073eaa67c90f2
SSDEEP

6144:RyXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:RyXzN8pXAdbbyyZtZfMMMMMMMb

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\ybzoegir = "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
2820	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\ybzoegir\ImagePath = "C:\\Windows\\SysWOW64\\ybzoegir\\lcvyfsed.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2752	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	lcvyfsed.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2752	2712	lcvyfsed.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2796	sc.exe
2844	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lcvyfsed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1932	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	30
PID 2052 wrote to memory of 1932	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	30
PID 2052 wrote to memory of 1932	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	30
PID 2052 wrote to memory of 1932	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	30
PID 2052 wrote to memory of 880	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	32
PID 2052 wrote to memory of 880	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	32
PID 2052 wrote to memory of 880	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	32
PID 2052 wrote to memory of 880	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	32
PID 2052 wrote to memory of 2796	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	34
PID 2052 wrote to memory of 2796	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	34
PID 2052 wrote to memory of 2796	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	34
PID 2052 wrote to memory of 2796	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	34
PID 2052 wrote to memory of 2844	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	36
PID 2052 wrote to memory of 2844	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	36
PID 2052 wrote to memory of 2844	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	36
PID 2052 wrote to memory of 2844	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	36
PID 2052 wrote to memory of 2856	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	38
PID 2052 wrote to memory of 2856	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	38
PID 2052 wrote to memory of 2856	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	38
PID 2052 wrote to memory of 2856	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	38
PID 2052 wrote to memory of 2820	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	41
PID 2052 wrote to memory of 2820	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	41
PID 2052 wrote to memory of 2820	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	41
PID 2052 wrote to memory of 2820	2052	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	41
PID 2712 wrote to memory of 2752	2712	lcvyfsed.exe	43
PID 2712 wrote to memory of 2752	2712	lcvyfsed.exe	43
PID 2712 wrote to memory of 2752	2712	lcvyfsed.exe	43
PID 2712 wrote to memory of 2752	2712	lcvyfsed.exe	43
PID 2712 wrote to memory of 2752	2712	lcvyfsed.exe	43
PID 2712 wrote to memory of 2752	2712	lcvyfsed.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ybzoegir\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lcvyfsed.exe" C:\Windows\SysWOW64\ybzoegir\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ybzoegir binPath= "C:\Windows\SysWOW64\ybzoegir\lcvyfsed.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ybzoegir "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ybzoegir
  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:2820

C:\Windows\SysWOW64\ybzoegir\lcvyfsed.exe
C:\Windows\SysWOW64\ybzoegir\lcvyfsed.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2752

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\lcvyfsed.exe

Filesize
12.8MB

MD5
7e86f56cc7bc632ecee4d551092b4ad5

SHA1
d7b0db963462f1e29addea2c8f7b6de5e89ba403

SHA256
ee07ab600e82157c43a0402074753f118a815def3e8caa9947e594a72205398e

SHA512
9b2665440b97796d222851b67d498e93e857bbd7655a339b4077cb6c01ac4137340a5954910cf284c5cb451cd808b05c6cc7b56c74df8e126528b8201701cf3c

Download Submit
memory/2052-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2052-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2052-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2712-17-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2752-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads