tofsee | 38e91b481571df6513b3f932c2f51bda07d4a0c35c45e690e3643ee98c3b47db

General

Target

2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe
Size

13.9MB
MD5

6c97afac7078c36833ebcfbcf96fad8e
SHA1

233ec0aab053ccc77ec31026dd8d0f4223ca61b9
SHA256

38e91b481571df6513b3f932c2f51bda07d4a0c35c45e690e3643ee98c3b47db
SHA512

181baf50cc579b52301b71ac22ba06c0e242a592fcdab6c5bfc491186060c7ef579ed69df2c3c5a9b89fe471a288a367bf2ce5391e46de3f62f024046f8354e1
SSDEEP

6144:UXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:UXzuKJ8GD96ySzTcANnQMMMMMMMb

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\gwudfaxb = "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

Processes:

netsh.exe

pid process

2812 netsh.exe

pid	process
2812	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\gwudfaxb\ImagePath = "C:\\Windows\\SysWOW64\\gwudfaxb\\izsvcpba.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2156 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

izsvcpba.exe

pid process

2688 izsvcpba.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

izsvcpba.exe

description pid process target process

PID 2688 set thread context of 2156 2688 izsvcpba.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2572 sc.exe
1036 sc.exe
2584 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2156	svchost.exe

pid	process
2688	izsvcpba.exe

description	pid	process	target process
PID 2688 set thread context of 2156	2688	izsvcpba.exe	svchost.exe

pid	process
2572	sc.exe
1036	sc.exe
2584	sc.exe

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

Processes:

netsh.exe

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

Processes:

cmd.exesc.exenetsh.exeizsvcpba.exesvchost.exe2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.execmd.exesc.exesc.exe

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	izsvcpba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exeizsvcpba.exe

description	pid	process	target process
PID 2252 wrote to memory of 2756	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 2756	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 2756	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 2756	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 2916	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 2916	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 2916	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 2916	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	cmd.exe
PID 2252 wrote to memory of 1036	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 1036	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 1036	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 1036	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2584	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2584	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2584	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2584	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2572	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2572	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2572	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2572	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	sc.exe
PID 2252 wrote to memory of 2812	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	netsh.exe
PID 2252 wrote to memory of 2812	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	netsh.exe
PID 2252 wrote to memory of 2812	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	netsh.exe
PID 2252 wrote to memory of 2812	2252	2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe	netsh.exe
PID 2688 wrote to memory of 2156	2688	izsvcpba.exe	svchost.exe
PID 2688 wrote to memory of 2156	2688	izsvcpba.exe	svchost.exe
PID 2688 wrote to memory of 2156	2688	izsvcpba.exe	svchost.exe
PID 2688 wrote to memory of 2156	2688	izsvcpba.exe	svchost.exe
PID 2688 wrote to memory of 2156	2688	izsvcpba.exe	svchost.exe
PID 2688 wrote to memory of 2156	2688	izsvcpba.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gwudfaxb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\izsvcpba.exe" C:\Windows\SysWOW64\gwudfaxb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gwudfaxb binPath= "C:\Windows\SysWOW64\gwudfaxb\izsvcpba.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gwudfaxb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gwudfaxb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2572
- 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:2812

C:\Windows\SysWOW64\gwudfaxb\izsvcpba.exe
C:\Windows\SysWOW64\gwudfaxb\izsvcpba.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-20_6c97afac7078c36833ebcfbcf96fad8e_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- 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:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\izsvcpba.exe

Filesize
14.0MB

MD5
97d80503d35bdaaf112b74468b2321d7

SHA1
038744b14b36effaf8511b154760e77104537133

SHA256
9414fde19d4a004786f794cf1f4f3d9eacf34940626187d19ba1647327e66bdf

SHA512
e1aa5ec37c5b6903512704bb5db131839aa9a3b23daeea99ade09176291c9879d32f29acf617c8e306ec4d18ede9194ddc3a9bfec0d6a3c8d750f5ba9aad51bb

Download Submit
memory/2156-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2156-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2156-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2156-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2156-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2252-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2252-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2252-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2252-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2252-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2252-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/2688-15-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads