tofsee | 5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5

General

Target

5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe
Size

13.3MB
MD5

3b04b6eae24e67d0164af3b3e083da8e
SHA1

646af8bcc69301c0e1d2da9b2e36a1304ffaa786
SHA256

5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5
SHA512

6200e767e2c65a4eb102e7cb086525b74691f9b5a5f16196136a68060ed66e1442d9d106c3c7b17ccc21b52b1ff77f855e2749a0ec87aa5eb6e33be7ccb74ccb
SSDEEP

98304:jRooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo9:A

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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\bebqjrtr = "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

2764 netsh.exe

pid	process
2764	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\bebqjrtr\ImagePath = "C:\\Windows\\SysWOW64\\bebqjrtr\\kdykodo.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2704 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kdykodo.exe

pid process

2396 kdykodo.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kdykodo.exe

description pid process target process

PID 2396 set thread context of 2704 2396 kdykodo.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

2192 sc.exe
2640 sc.exe
2924 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2704	svchost.exe

pid	process
2396	kdykodo.exe

description	pid	process	target process
PID 2396 set thread context of 2704	2396	kdykodo.exe	svchost.exe

pid	process
2192	sc.exe
2640	sc.exe
2924	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:

sc.exenetsh.execmd.execmd.exesc.exesvchost.exe5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exesc.exekdykodo.exe

description	ioc	process
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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kdykodo.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exekdykodo.exe

description	pid	process	target process
PID 2096 wrote to memory of 2152	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2152	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2152	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2152	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2472	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2472	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2472	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2472	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	cmd.exe
PID 2096 wrote to memory of 2192	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2192	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2192	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2192	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2640	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2640	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2640	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2640	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2924	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2924	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2924	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2924	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	sc.exe
PID 2096 wrote to memory of 2764	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	netsh.exe
PID 2096 wrote to memory of 2764	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	netsh.exe
PID 2096 wrote to memory of 2764	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	netsh.exe
PID 2096 wrote to memory of 2764	2096	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	netsh.exe
PID 2396 wrote to memory of 2704	2396	kdykodo.exe	svchost.exe
PID 2396 wrote to memory of 2704	2396	kdykodo.exe	svchost.exe
PID 2396 wrote to memory of 2704	2396	kdykodo.exe	svchost.exe
PID 2396 wrote to memory of 2704	2396	kdykodo.exe	svchost.exe
PID 2396 wrote to memory of 2704	2396	kdykodo.exe	svchost.exe
PID 2396 wrote to memory of 2704	2396	kdykodo.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe
"C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bebqjrtr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kdykodo.exe" C:\Windows\SysWOW64\bebqjrtr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bebqjrtr binPath= "C:\Windows\SysWOW64\bebqjrtr\kdykodo.exe /d\"C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bebqjrtr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bebqjrtr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- 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:2764

C:\Windows\SysWOW64\bebqjrtr\kdykodo.exe
C:\Windows\SysWOW64\bebqjrtr\kdykodo.exe /d"C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- 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:2704

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
10.8MB

MD5
51eebc7ccf79f2fb3e90bbb94734d1c5

SHA1
ec8a29c72ba16aaf2298ac9810e991b94cba60f9

SHA256
67e972c9fd1d8eba7b933e8e4c5562c57bc499482b7604bd1c26d9463f4b3c81

SHA512
4128ae5c3792b9938765376271e6c6f95a2be1087d152bdb75b78eab9b3299ae9e0b4be1236062840f30b7baf68623c4d987879142a13b7ef84fcf83cebf65c9

Download Submit
memory/2096-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2096-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2096-8-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2096-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-1-0x00000000008F0000-0x00000000009F0000-memory.dmp

Filesize
1024KB

Download
memory/2396-16-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2704-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads