tofsee | c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0

General

Target

c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe
Size

12.7MB
MD5

e2151306920f0b6337def574ee7008d6
SHA1

8679ca5f98cfc2b88fc988b79c5bf9a36c7d3775
SHA256

c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0
SHA512

97fc4eb0636c5917c5aadb433a90a89412a86ed731782347d6c7f6dc19ba8090972c6fa2a7dde6a05d10d1e35f5c637cb3a961f823592ab47f65daaab491bca1
SSDEEP

49152:TP1IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIK:c

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
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
3484	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\lpudxccy\ImagePath = "C:\\Windows\\SysWOW64\\lpudxccy\\wlqrltwp.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe

Deletes itself 1 IoCs

pid	Process
396	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	wlqrltwp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 396	2892	wlqrltwp.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4444	sc.exe
1492	sc.exe
312	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3632	3124	WerFault.exe	81
4748	2892	WerFault.exe	96

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	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	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.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	wlqrltwp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 2488	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	82
PID 3124 wrote to memory of 2488	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	82
PID 3124 wrote to memory of 2488	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	82
PID 3124 wrote to memory of 4104	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	84
PID 3124 wrote to memory of 4104	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	84
PID 3124 wrote to memory of 4104	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	84
PID 3124 wrote to memory of 4444	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	88
PID 3124 wrote to memory of 4444	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	88
PID 3124 wrote to memory of 4444	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	88
PID 3124 wrote to memory of 1492	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	90
PID 3124 wrote to memory of 1492	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	90
PID 3124 wrote to memory of 1492	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	90
PID 3124 wrote to memory of 312	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	94
PID 3124 wrote to memory of 312	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	94
PID 3124 wrote to memory of 312	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	94
PID 3124 wrote to memory of 3484	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	97
PID 3124 wrote to memory of 3484	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	97
PID 3124 wrote to memory of 3484	3124	c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe	97
PID 2892 wrote to memory of 396	2892	wlqrltwp.exe	102
PID 2892 wrote to memory of 396	2892	wlqrltwp.exe	102
PID 2892 wrote to memory of 396	2892	wlqrltwp.exe	102
PID 2892 wrote to memory of 396	2892	wlqrltwp.exe	102
PID 2892 wrote to memory of 396	2892	wlqrltwp.exe	102

C:\Users\Admin\AppData\Local\Temp\c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe
"C:\Users\Admin\AppData\Local\Temp\c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lpudxccy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wlqrltwp.exe" C:\Windows\SysWOW64\lpudxccy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lpudxccy binPath= "C:\Windows\SysWOW64\lpudxccy\wlqrltwp.exe /d\"C:\Users\Admin\AppData\Local\Temp\c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4444
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lpudxccy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lpudxccy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:312
- 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:3484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 1220
  2⤵
  - Program crash
  PID:3632

C:\Windows\SysWOW64\lpudxccy\wlqrltwp.exe
C:\Windows\SysWOW64\lpudxccy\wlqrltwp.exe /d"C:\Users\Admin\AppData\Local\Temp\c8b505762941917003a601f5528107f2f8430f28ba872d46402ae0e2072f73d0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 220
  2⤵
  - Program crash
  PID:4748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3124 -ip 3124
1⤵
PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2892 -ip 2892
1⤵
PID:3836

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\wlqrltwp.exe

Filesize
14.6MB

MD5
2014e542da25ebb2e12ab3de45d31086

SHA1
2a5776ee2039db16ecfde770d1b11b5a6fa095e0

SHA256
6cb030fe6a909491da7b69e5cc95b2221a06e4a71d66d4f5666eb192933c52af

SHA512
bb36faea3cd9844b6baddba86cca988f7fba5be3c47ae0fafdea59052b3fe138b5b349372c8da0f198c4b12888ab20615df04dde5566667c569e910fe7ee95ee

Download Submit
memory/396-12-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/396-14-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/396-15-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/2892-11-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/2892-17-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/3124-1-0x00000000009F0000-0x0000000000AF0000-memory.dmp

Filesize
1024KB

Download
memory/3124-2-0x0000000000910000-0x0000000000923000-memory.dmp

Filesize
76KB

Download
memory/3124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3124-8-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/3124-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3124-9-0x0000000000910000-0x0000000000923000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads