hxxps://cdn[.]discordapp[.]com/attachments/744102305309130802/1043682831353774100/Keyauth_simple[.]rar

General

Target

https://cdn.discordapp.com/attachments/744102305309130802/1043682831353774100/Keyauth_simple.rar

Score

1^/10

Malware Config

Signatures

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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe
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

Modifies registry class 1 IoCs

Processes:

firefox.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings firefox.exe
NTFS ADS 1 IoCs

Processes:

firefox.exe

description ioc process

File created C:\Users\Admin\Downloads\Keyauth_simple.rar:Zone.Identifier firefox.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings	firefox.exe

description	ioc	process
File created	C:\Users\Admin\Downloads\Keyauth_simple.rar:Zone.Identifier	firefox.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

firefox.exe7zG.exe

description	pid	process
Token: SeDebugPrivilege	4020	firefox.exe
Token: SeDebugPrivilege	4020	firefox.exe
Token: SeDebugPrivilege	4020	firefox.exe
Token: SeRestorePrivilege	4848	7zG.exe
Token: 35	4848	7zG.exe
Token: SeSecurityPrivilege	4848	7zG.exe
Token: SeSecurityPrivilege	4848	7zG.exe
Token: SeDebugPrivilege	4020	firefox.exe
Token: SeDebugPrivilege	4020	firefox.exe
Token: SeDebugPrivilege	4020	firefox.exe
Token: SeDebugPrivilege	4020	firefox.exe

Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

firefox.exe7zG.exe

pid process

4020 firefox.exe
4020 firefox.exe
4020 firefox.exe
4020 firefox.exe
4848 7zG.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

firefox.exe

pid process

4020 firefox.exe
4020 firefox.exe
4020 firefox.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

firefox.exe

pid process

4020 firefox.exe
4020 firefox.exe
4020 firefox.exe
4020 firefox.exe

pid	process
4020	firefox.exe
4020	firefox.exe
4020	firefox.exe
4020	firefox.exe
4848	7zG.exe

pid	process
4020	firefox.exe
4020	firefox.exe
4020	firefox.exe

pid	process
4020	firefox.exe
4020	firefox.exe
4020	firefox.exe
4020	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

firefox.exefirefox.exe

description	pid	process	target process
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 2896 wrote to memory of 4020	2896	firefox.exe	firefox.exe
PID 4020 wrote to memory of 3696	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 3696	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 1104	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe
PID 4020 wrote to memory of 4464	4020	firefox.exe	firefox.exe

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" https://cdn.discordapp.com/attachments/744102305309130802/1043682831353774100/Keyauth_simple.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:2896

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" https://cdn.discordapp.com/attachments/744102305309130802/1043682831353774100/Keyauth_simple.rar
2⤵
- Checks processor information in registry
- Modifies registry class
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4020

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4020.0.1046859312\760691243" -parentBuildID 20200403170909 -prefsHandle 1692 -prefMapHandle 1684 -prefsLen 1 -prefMapSize 219989 -appdir "C:\Program Files\Mozilla Firefox\browser" - 4020 "\\.\pipe\gecko-crash-server-pipe.4020" 1788 gpu
3⤵
PID:3696

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4020.3.318103175\1366058882" -childID 1 -isForBrowser -prefsHandle 2464 -prefMapHandle 2244 -prefsLen 112 -prefMapSize 219989 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 4020 "\\.\pipe\gecko-crash-server-pipe.4020" 2488 tab
3⤵
PID:1104

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4020.13.939770348\62033068" -childID 2 -isForBrowser -prefsHandle 3840 -prefMapHandle 3836 -prefsLen 7599 -prefMapSize 219989 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 4020 "\\.\pipe\gecko-crash-server-pipe.4020" 3852 tab
3⤵
PID:4464

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4492

C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\Keyauth_simple\" -spe -an -ai#7zMap18664:90:7zEvent14273
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4848

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

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Downloads

C:\Users\Admin\Downloads\Keyauth_simple.rar

Filesize
40.9MB

MD5
505abbc0f43eaf5dc3c4eae90b55c97d

SHA1
fca195043891123ae4dac916a6ef0dc316ddc64a

SHA256
595ec9778fac14b771a99fd75cb8f9ffd7a66bdf56e7465724a129a7daabac3d

SHA512
9f3ad0a08de0800f33d54a5a7e479bdfb47b1fae1ff16173a59528ddb1fc4bb5f20ceeb3865fa18fae6d910cc1efc5c750ead27491c983f4e69903b598eef07a

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads