tofsee | f6857dbda764a9e366f4ba065eab36fc5f1bceec4d9af02cc2a81cf69f29a034

Analysis

max time kernel
144s
max time network
129s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 14:52

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General

Target

2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe
Size

14.0MB
MD5

5403a883573c96f0e4c7fdf5c023069a
SHA1

f7dd588c14c1173492348a8a201ec3a006d3472a
SHA256

f6857dbda764a9e366f4ba065eab36fc5f1bceec4d9af02cc2a81cf69f29a034
SHA512

7de7b29996528d342483e22102b4187156766304e4bc7cbfb855954bcbb4a96546346786b130329f4a06c6eb3ac2af764f0cbcf0114ef02eeea6c01b010f377a
SSDEEP

6144:pyXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:pyXzN8pXAdbbyyZtZfMMMMMMMb

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\cgpxlyby = "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
2724	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\cgpxlyby\ImagePath = "C:\\Windows\\SysWOW64\\cgpxlyby\\ytaxwtpq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2508	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2840	ytaxwtpq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 2508	2840	ytaxwtpq.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1076	sc.exe
2936	sc.exe
2704	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	sc.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	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ytaxwtpq.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 564 wrote to memory of 2780	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	30
PID 564 wrote to memory of 2780	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	30
PID 564 wrote to memory of 2780	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	30
PID 564 wrote to memory of 2780	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	30
PID 564 wrote to memory of 2920	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	32
PID 564 wrote to memory of 2920	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	32
PID 564 wrote to memory of 2920	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	32
PID 564 wrote to memory of 2920	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	32
PID 564 wrote to memory of 1076	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	34
PID 564 wrote to memory of 1076	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	34
PID 564 wrote to memory of 1076	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	34
PID 564 wrote to memory of 1076	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	34
PID 564 wrote to memory of 2936	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	36
PID 564 wrote to memory of 2936	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	36
PID 564 wrote to memory of 2936	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	36
PID 564 wrote to memory of 2936	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	36
PID 564 wrote to memory of 2704	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	38
PID 564 wrote to memory of 2704	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	38
PID 564 wrote to memory of 2704	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	38
PID 564 wrote to memory of 2704	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	38
PID 564 wrote to memory of 2724	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	41
PID 564 wrote to memory of 2724	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	41
PID 564 wrote to memory of 2724	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	41
PID 564 wrote to memory of 2724	564	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	41
PID 2840 wrote to memory of 2508	2840	ytaxwtpq.exe	43
PID 2840 wrote to memory of 2508	2840	ytaxwtpq.exe	43
PID 2840 wrote to memory of 2508	2840	ytaxwtpq.exe	43
PID 2840 wrote to memory of 2508	2840	ytaxwtpq.exe	43
PID 2840 wrote to memory of 2508	2840	ytaxwtpq.exe	43
PID 2840 wrote to memory of 2508	2840	ytaxwtpq.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cgpxlyby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ytaxwtpq.exe" C:\Windows\SysWOW64\cgpxlyby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cgpxlyby binPath= "C:\Windows\SysWOW64\cgpxlyby\ytaxwtpq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cgpxlyby "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cgpxlyby
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- 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:2724

C:\Windows\SysWOW64\cgpxlyby\ytaxwtpq.exe
C:\Windows\SysWOW64\cgpxlyby\ytaxwtpq.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- 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:2508

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\ytaxwtpq.exe

Filesize
10.1MB

MD5
f1a14ae95f282fed96d3418bdaf5f10c

SHA1
1418f8ecc29c45b55c2368ac0ac990d2196d7565

SHA256
1704012b0f1140d42ef47feed0522e35e54671680a72197dac580a8cdda03a37

SHA512
c32663d36e262bd4663634415247d063c08147e9cd53064d6da583c37cc6a204e71dfcb71c5af0a4fc6f7cf17fe21f3b6c8af3bbf5b295523c3c32cc802c3461

Download Submit
memory/564-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/564-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/564-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/564-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/564-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/564-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2508-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2508-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2508-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2508-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2508-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2840-15-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads