tofsee | 645b2c5d20c82e6d5eaf3c33a75950ce4428c843b0bc0c8d1fc7d81dad0a62f0

Analysis

max time kernel
148s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 19:38

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General

Target

2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe
Size

12.4MB
MD5

7f0aa0572a3d14406f8dcd4e6c12c1f8
SHA1

a789428d93b23607398b372c9bd1825ad8e4ad5c
SHA256

645b2c5d20c82e6d5eaf3c33a75950ce4428c843b0bc0c8d1fc7d81dad0a62f0
SHA512

eee000df3ef17908f2ef33294e9d439325eadbc6382c67aba5c401286e6400584f1f6ff33b566bf603b386a916a9c7f9a3c7e12e5021c311a75ecf26f797ae4c
SSDEEP

6144:IXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:IXzuKJ8GD96ySzTcANnQMMMMMMMb

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\rcwnzlgq = "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
948	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\rcwnzlgq\ImagePath = "C:\\Windows\\SysWOW64\\rcwnzlgq\\ahuuxiav.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	ahuuxiav.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 3008	2836	ahuuxiav.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
768	sc.exe
2784	sc.exe
2852	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ahuuxiav.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 1488 wrote to memory of 2608	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	31
PID 1488 wrote to memory of 2608	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	31
PID 1488 wrote to memory of 2608	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	31
PID 1488 wrote to memory of 2608	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	31
PID 1488 wrote to memory of 1528	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	33
PID 1488 wrote to memory of 1528	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	33
PID 1488 wrote to memory of 1528	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	33
PID 1488 wrote to memory of 1528	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	33
PID 1488 wrote to memory of 768	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	35
PID 1488 wrote to memory of 768	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	35
PID 1488 wrote to memory of 768	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	35
PID 1488 wrote to memory of 768	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	35
PID 1488 wrote to memory of 2784	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	37
PID 1488 wrote to memory of 2784	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	37
PID 1488 wrote to memory of 2784	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	37
PID 1488 wrote to memory of 2784	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	37
PID 1488 wrote to memory of 2852	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	39
PID 1488 wrote to memory of 2852	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	39
PID 1488 wrote to memory of 2852	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	39
PID 1488 wrote to memory of 2852	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	39
PID 1488 wrote to memory of 948	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	42
PID 1488 wrote to memory of 948	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	42
PID 1488 wrote to memory of 948	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	42
PID 1488 wrote to memory of 948	1488	2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe	42
PID 2836 wrote to memory of 3008	2836	ahuuxiav.exe	44
PID 2836 wrote to memory of 3008	2836	ahuuxiav.exe	44
PID 2836 wrote to memory of 3008	2836	ahuuxiav.exe	44
PID 2836 wrote to memory of 3008	2836	ahuuxiav.exe	44
PID 2836 wrote to memory of 3008	2836	ahuuxiav.exe	44
PID 2836 wrote to memory of 3008	2836	ahuuxiav.exe	44

C:\Users\Admin\AppData\Local\Temp\2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rcwnzlgq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ahuuxiav.exe" C:\Windows\SysWOW64\rcwnzlgq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rcwnzlgq binPath= "C:\Windows\SysWOW64\rcwnzlgq\ahuuxiav.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rcwnzlgq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rcwnzlgq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- 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:948

C:\Windows\SysWOW64\rcwnzlgq\ahuuxiav.exe
C:\Windows\SysWOW64\rcwnzlgq\ahuuxiav.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-23_7f0aa0572a3d14406f8dcd4e6c12c1f8_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- 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:3008

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\ahuuxiav.exe

Filesize
10.5MB

MD5
15c164bbb6653a52c8c75986ea312f56

SHA1
73c883b48385c367c248d7049d828b66a2e7238c

SHA256
aaa2473e04f9324995e1a8284e25dd8575f3cdb93df6822bb87618a950b3cbf3

SHA512
49a7058b525b7ea65b780773d7252015c1ce4f9f7837be7b1c0ac3679ed9d0e46af71c8cb103909ed715869f5c4ff56ad033be9338a37f99c375296738265e3c

Download Submit
memory/1488-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/1488-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1488-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1488-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1488-8-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2836-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3008-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3008-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3008-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3008-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3008-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads