tofsee | b01c776ea255a23b668d1821e30e75539788f8b19ca8cbb0e3aa6f731bb09f63

Analysis

max time kernel
148s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 18:28

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General

Target

2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe
Size

14.7MB
MD5

7e89eba5381aefab5f498d3c4cf79600
SHA1

c4863bbce5805debed709d06eccf9fba7b5a2bc2
SHA256

b01c776ea255a23b668d1821e30e75539788f8b19ca8cbb0e3aa6f731bb09f63
SHA512

7962217a2af06a2c4c5756cacc35e0be78c4409518c119a3311dbe8cd6e31d2d5f30842aed1ab97fd49f0e027b7d9f188fa1b771922cce137e0df62a1bcb60af
SSDEEP

6144:fXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:fXzuKJ8GD96ySzTcANnQMMMMMMMb

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\qrgyslfh = "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
2540	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\qrgyslfh\ImagePath = "C:\\Windows\\SysWOW64\\qrgyslfh\\vugchrbo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2368	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	vugchrbo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2368	2752	vugchrbo.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2820	sc.exe
2728	sc.exe
2712	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vugchrbo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2800	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	30
PID 2068 wrote to memory of 2800	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	30
PID 2068 wrote to memory of 2800	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	30
PID 2068 wrote to memory of 2800	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	30
PID 2068 wrote to memory of 2704	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	32
PID 2068 wrote to memory of 2704	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	32
PID 2068 wrote to memory of 2704	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	32
PID 2068 wrote to memory of 2704	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	32
PID 2068 wrote to memory of 2820	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	34
PID 2068 wrote to memory of 2820	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	34
PID 2068 wrote to memory of 2820	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	34
PID 2068 wrote to memory of 2820	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	34
PID 2068 wrote to memory of 2728	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	36
PID 2068 wrote to memory of 2728	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	36
PID 2068 wrote to memory of 2728	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	36
PID 2068 wrote to memory of 2728	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	36
PID 2068 wrote to memory of 2712	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	38
PID 2068 wrote to memory of 2712	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	38
PID 2068 wrote to memory of 2712	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	38
PID 2068 wrote to memory of 2712	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	38
PID 2068 wrote to memory of 2540	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	41
PID 2068 wrote to memory of 2540	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	41
PID 2068 wrote to memory of 2540	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	41
PID 2068 wrote to memory of 2540	2068	2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe	41
PID 2752 wrote to memory of 2368	2752	vugchrbo.exe	43
PID 2752 wrote to memory of 2368	2752	vugchrbo.exe	43
PID 2752 wrote to memory of 2368	2752	vugchrbo.exe	43
PID 2752 wrote to memory of 2368	2752	vugchrbo.exe	43
PID 2752 wrote to memory of 2368	2752	vugchrbo.exe	43
PID 2752 wrote to memory of 2368	2752	vugchrbo.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qrgyslfh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vugchrbo.exe" C:\Windows\SysWOW64\qrgyslfh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qrgyslfh binPath= "C:\Windows\SysWOW64\qrgyslfh\vugchrbo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qrgyslfh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qrgyslfh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:2540

C:\Windows\SysWOW64\qrgyslfh\vugchrbo.exe
C:\Windows\SysWOW64\qrgyslfh\vugchrbo.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-20_7e89eba5381aefab5f498d3c4cf79600_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2752
- 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:2368

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\vugchrbo.exe

Filesize
12.2MB

MD5
8b22d92025802ea5be23d71ba2a8e266

SHA1
10dc5a7ea2b3b5a6d193fde79361e2c34f9ee4ed

SHA256
e0d6271aad786ab5446c40c0dce555422f9275884e3bc2e25bd3826cd4b1aea8

SHA512
812b88fd5eec63a2cffdf627e633098f36445c81b93c2ef23e222b607f591707ca832c4c151e9b738675b267ffea1a6259d5efe72518bf800117c5e35468b7df

Download Submit
memory/2068-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2068-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2068-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2068-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2068-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2068-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2368-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2368-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2368-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2368-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2368-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-15-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads