tofsee | 56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83

General

Target

56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe
Size

13.9MB
MD5

ab0e948d4784415f90d8677e5f4c9d91
SHA1

812b1354f35ed90d60aaa8c562db4380919f12ab
SHA256

56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83
SHA512

a42433ffe7cfcef3c5e3db9981f93dbc1a2a7fd2269764128ac30b3750fc020249ca70a11c975c1f7cc373ab8fb032e96a5b2ae07d55edb95c841df4e740929d
SSDEEP

49152:1zPOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOX:1D

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\bqrramqz = "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

2496 netsh.exe

pid	process
2496	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\bqrramqz\ImagePath = "C:\\Windows\\SysWOW64\\bqrramqz\\kdoepmfy.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2536 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kdoepmfy.exe

pid process

2820 kdoepmfy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kdoepmfy.exe

description pid process target process

PID 2820 set thread context of 2536 2820 kdoepmfy.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

2568 sc.exe
2464 sc.exe
2660 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2536	svchost.exe

pid	process
2820	kdoepmfy.exe

description	pid	process	target process
PID 2820 set thread context of 2536	2820	kdoepmfy.exe	svchost.exe

pid	process
2568	sc.exe
2464	sc.exe
2660	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.execmd.exesc.exenetsh.exesvchost.exe56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exesc.exesc.exekdoepmfy.exe

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.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	kdoepmfy.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exekdoepmfy.exe

description	pid	process	target process
PID 2132 wrote to memory of 2188	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2188	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2188	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2188	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2716	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2716	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2716	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2716	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	cmd.exe
PID 2132 wrote to memory of 2568	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2568	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2568	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2568	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2464	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2464	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2464	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2464	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2660	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2660	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2660	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2660	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	sc.exe
PID 2132 wrote to memory of 2496	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	netsh.exe
PID 2132 wrote to memory of 2496	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	netsh.exe
PID 2132 wrote to memory of 2496	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	netsh.exe
PID 2132 wrote to memory of 2496	2132	56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe	netsh.exe
PID 2820 wrote to memory of 2536	2820	kdoepmfy.exe	svchost.exe
PID 2820 wrote to memory of 2536	2820	kdoepmfy.exe	svchost.exe
PID 2820 wrote to memory of 2536	2820	kdoepmfy.exe	svchost.exe
PID 2820 wrote to memory of 2536	2820	kdoepmfy.exe	svchost.exe
PID 2820 wrote to memory of 2536	2820	kdoepmfy.exe	svchost.exe
PID 2820 wrote to memory of 2536	2820	kdoepmfy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe
"C:\Users\Admin\AppData\Local\Temp\56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bqrramqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2188
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kdoepmfy.exe" C:\Windows\SysWOW64\bqrramqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bqrramqz binPath= "C:\Windows\SysWOW64\bqrramqz\kdoepmfy.exe /d\"C:\Users\Admin\AppData\Local\Temp\56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2568
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bqrramqz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bqrramqz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2496

C:\Windows\SysWOW64\bqrramqz\kdoepmfy.exe
C:\Windows\SysWOW64\bqrramqz\kdoepmfy.exe /d"C:\Users\Admin\AppData\Local\Temp\56682ca9ad12536f6e53da6b2c02a72258996acd67b66ce1da12a16c694b2d83.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- 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:2536

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\kdoepmfy.exe

Filesize
11.7MB

MD5
7887cd40e2ce88bfd9190979d0a96f59

SHA1
9caa7c10da87aa492a99793d50a51663899fe644

SHA256
7b816861d54a268ca2a76f26d576271b5c518f53950f95f2cc9b01133505af74

SHA512
2b17b6e224d75676456afad62a2fbbd3eda88e2f1b5bfcaf37c9ee8a47e2d60bd472a5eb247c46878f9122891a7c7a4bee26fae4be2f532206b5b8d34b26cd15

Download Submit
memory/2132-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2132-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2132-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2132-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2132-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2132-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2536-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2536-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-16-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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