tofsee | 9f2232ccdfb02bdb0276b198420129a9e4bf8d05f7d940b90cd40df6646a93d5

Analysis

max time kernel
147s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-12-2024 23:11

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General

Target

2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe
Size

14.9MB
MD5

a4bcfd47b20fdddff6e2d31a46aaf5a2
SHA1

6a1e44869e3d8a4a0220a3a61b886f2ed217cbb4
SHA256

9f2232ccdfb02bdb0276b198420129a9e4bf8d05f7d940b90cd40df6646a93d5
SHA512

ac321de576115b419f7f7002c533ce8a38b88ff1cf6dc7fd881425c753d54c053300d32c0ec9cea4e4d4d1b489a5975d87652a2012658b1eb9a1040e51d9a42f
SSDEEP

24576:FXzqpE5DpEMMMMMMMb4zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzT:FXPVpEMMMMMMMb

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\zfqgytkx = "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
2872	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\zfqgytkx\ImagePath = "C:\\Windows\\SysWOW64\\zfqgytkx\\bzgcbkiz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2652	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2764	bzgcbkiz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 2652	2764	bzgcbkiz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1936	sc.exe
2876	sc.exe
2144	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.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
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	bzgcbkiz.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 2404	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	30
PID 1972 wrote to memory of 2404	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	30
PID 1972 wrote to memory of 2404	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	30
PID 1972 wrote to memory of 2404	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	30
PID 1972 wrote to memory of 2548	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	32
PID 1972 wrote to memory of 2548	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	32
PID 1972 wrote to memory of 2548	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	32
PID 1972 wrote to memory of 2548	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	32
PID 1972 wrote to memory of 2144	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	34
PID 1972 wrote to memory of 2144	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	34
PID 1972 wrote to memory of 2144	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	34
PID 1972 wrote to memory of 2144	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	34
PID 1972 wrote to memory of 1936	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	36
PID 1972 wrote to memory of 1936	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	36
PID 1972 wrote to memory of 1936	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	36
PID 1972 wrote to memory of 1936	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	36
PID 1972 wrote to memory of 2876	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	38
PID 1972 wrote to memory of 2876	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	38
PID 1972 wrote to memory of 2876	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	38
PID 1972 wrote to memory of 2876	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	38
PID 1972 wrote to memory of 2872	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	41
PID 1972 wrote to memory of 2872	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	41
PID 1972 wrote to memory of 2872	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	41
PID 1972 wrote to memory of 2872	1972	2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe	41
PID 2764 wrote to memory of 2652	2764	bzgcbkiz.exe	43
PID 2764 wrote to memory of 2652	2764	bzgcbkiz.exe	43
PID 2764 wrote to memory of 2652	2764	bzgcbkiz.exe	43
PID 2764 wrote to memory of 2652	2764	bzgcbkiz.exe	43
PID 2764 wrote to memory of 2652	2764	bzgcbkiz.exe	43
PID 2764 wrote to memory of 2652	2764	bzgcbkiz.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zfqgytkx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bzgcbkiz.exe" C:\Windows\SysWOW64\zfqgytkx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zfqgytkx binPath= "C:\Windows\SysWOW64\zfqgytkx\bzgcbkiz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zfqgytkx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zfqgytkx
  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:2872

C:\Windows\SysWOW64\zfqgytkx\bzgcbkiz.exe
C:\Windows\SysWOW64\zfqgytkx\bzgcbkiz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-01_a4bcfd47b20fdddff6e2d31a46aaf5a2_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- 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:2652

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\bzgcbkiz.exe

Filesize
10.8MB

MD5
da4de337627b14ade51eb15f608f3090

SHA1
90086a841fefc9f25a7ff0765aa894107f1df0e6

SHA256
83e3fe5d3d82c8cd392503ba715a65e32cc9e4d5585589b4bc1eb909a8880cfd

SHA512
2893744283a0f9617e81817c044e4e9d18b6d6a5a0d7cd4ce15a5a56165ef37fa73afd61e56389f3aa86a5b30dc8c2a7ef207f21a575b15ddc50a63f35999b3b

Download Submit
memory/1972-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1972-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1972-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1972-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1972-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1972-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2652-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2764-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads