hxxp://lt[.]welcos[.]com[.]pk/lt[.]exe

General

Target

http://lt.welcos.com.pk/lt.exe

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2116 824 WerFault.exe

pid	pid_target	process	target process
2116	824	WerFault.exe

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

firefox.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe

Modifies registry class 1 IoCs

Processes:

firefox.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings firefox.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

firefox.exe

description	pid	process
Token: SeDebugPrivilege	4320	firefox.exe
Token: SeDebugPrivilege	4320	firefox.exe
Token: SeDebugPrivilege	4320	firefox.exe
Token: SeDebugPrivilege	4320	firefox.exe
Token: SeDebugPrivilege	4320	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

firefox.exe

pid process

4320 firefox.exe
4320 firefox.exe
4320 firefox.exe
4320 firefox.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

firefox.exe

pid process

4320 firefox.exe
4320 firefox.exe
4320 firefox.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

firefox.exe

pid process

4320 firefox.exe

pid	process
4320	firefox.exe
4320	firefox.exe
4320	firefox.exe
4320	firefox.exe

pid	process
4320	firefox.exe
4320	firefox.exe
4320	firefox.exe

pid	process
4320	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

firefox.exefirefox.exe

description	pid	process	target process
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 3776 wrote to memory of 4320	3776	firefox.exe	firefox.exe
PID 4320 wrote to memory of 4952	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 4952	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 1656	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe
PID 4320 wrote to memory of 3488	4320	firefox.exe	firefox.exe

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" http://lt.welcos.com.pk/lt.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:3776

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" http://lt.welcos.com.pk/lt.exe
2⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4320

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4320.0.346420318\501076559" -parentBuildID 20200403170909 -prefsHandle 1684 -prefMapHandle 1676 -prefsLen 1 -prefMapSize 220117 -appdir "C:\Program Files\Mozilla Firefox\browser" - 4320 "\\.\pipe\gecko-crash-server-pipe.4320" 1784 gpu
3⤵
PID:4952

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4320.3.156624353\179892071" -childID 1 -isForBrowser -prefsHandle 2444 -prefMapHandle 2244 -prefsLen 112 -prefMapSize 220117 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 4320 "\\.\pipe\gecko-crash-server-pipe.4320" 2496 tab
3⤵
PID:1656

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4320.13.304912855\810239318" -childID 2 -isForBrowser -prefsHandle 3740 -prefMapHandle 3736 -prefsLen 6894 -prefMapSize 220117 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 4320 "\\.\pipe\gecko-crash-server-pipe.4320" 3748 tab
3⤵
PID:3488

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 476 -p 824 -ip 824
1⤵
PID:3640

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 824 -s 1764
1⤵
- Program crash
PID:2116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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