Malware Analysis Report

2024-10-19 08:22

Sample ID 240613-wds3fs1fkk
Target Bypass.rar
SHA256 47ba76e3e00909927f27dfc2b85ee8824ebb5f5c0cb4dd26693bb7a1afb67410
Tags
score
3/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
3/10

SHA256

47ba76e3e00909927f27dfc2b85ee8824ebb5f5c0cb4dd26693bb7a1afb67410

Threat Level: Likely benign

The file Bypass.rar was found to be: Likely benign.

Malicious Activity Summary


Enumerates physical storage devices

Unsigned PE

Runs .reg file with regedit

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 17:48

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-06-13 17:48

Reported

2024-06-13 17:51

Platform

win10v2004-20240611-en

Max time kernel

93s

Max time network

95s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Bypass\d3d9.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Bypass\d3d9.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 17:48

Reported

2024-06-13 17:51

Platform

win7-20240220-en

Max time kernel

149s

Max time network

122s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\Bypass.rar

Signatures

Enumerates physical storage devices

Runs .reg file with regedit

Description Indicator Process Target
N/A N/A C:\Windows\regedit.exe N/A
N/A N/A C:\Windows\regedit.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 35 N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1248 wrote to memory of 2592 N/A C:\Windows\system32\cmd.exe C:\Program Files\7-Zip\7zFM.exe
PID 1248 wrote to memory of 2592 N/A C:\Windows\system32\cmd.exe C:\Program Files\7-Zip\7zFM.exe
PID 1248 wrote to memory of 2592 N/A C:\Windows\system32\cmd.exe C:\Program Files\7-Zip\7zFM.exe
PID 2592 wrote to memory of 2496 N/A C:\Program Files\7-Zip\7zFM.exe C:\Windows\regedit.exe
PID 2592 wrote to memory of 2496 N/A C:\Program Files\7-Zip\7zFM.exe C:\Windows\regedit.exe
PID 2592 wrote to memory of 2496 N/A C:\Program Files\7-Zip\7zFM.exe C:\Windows\regedit.exe
PID 2592 wrote to memory of 2168 N/A C:\Program Files\7-Zip\7zFM.exe C:\Windows\regedit.exe
PID 2592 wrote to memory of 2168 N/A C:\Program Files\7-Zip\7zFM.exe C:\Windows\regedit.exe
PID 2592 wrote to memory of 2168 N/A C:\Program Files\7-Zip\7zFM.exe C:\Windows\regedit.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\Bypass.rar

C:\Program Files\7-Zip\7zFM.exe

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Bypass.rar"

C:\Windows\regedit.exe

"regedit.exe" "C:\Users\Admin\AppData\Local\Temp\7zO02A3A6E6\Cracked.reg"

C:\Windows\regedit.exe

"regedit.exe" "C:\Users\Admin\AppData\Local\Temp\7zO02A5CDA7\Cracked.reg"

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\7zO02A5CDA7\Cracked.reg

MD5 a95106d7c9fc3fb18a2fbe1885de09dd
SHA1 3debdeee76208de099b80eff33949371f02bf575
SHA256 61df13bae98f10c330a751875146dd81bca223036d6470ebb9fffdc0b47f0fe2
SHA512 d81d70466f4ff81111d2a9d0a63cc7371d75568b1a1c5fe0aef638742cef30c92cddc20b22683d3fb32331d328dba57005a3698569e9edb10d1fc63ff29718b2

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 17:48

Reported

2024-06-13 17:51

Platform

win10v2004-20240508-en

Max time kernel

119s

Max time network

51s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\Bypass.rar

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings C:\Windows\system32\cmd.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\Bypass.rar

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

C:\Windows\System32\rundll32.exe

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

Network

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-13 17:48

Reported

2024-06-13 17:51

Platform

win7-20240611-en

Max time kernel

119s

Max time network

120s

Command Line

regedit.exe "C:\Users\Admin\AppData\Local\Temp\Bypass\Cracked.reg"

Signatures

Runs .reg file with regedit

Description Indicator Process Target
N/A N/A C:\Windows\regedit.exe N/A

Processes

C:\Windows\regedit.exe

regedit.exe "C:\Users\Admin\AppData\Local\Temp\Bypass\Cracked.reg"

Network

N/A

Files

memory/1180-0-0x00000000001A0000-0x00000000001A1000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-13 17:48

Reported

2024-06-13 17:51

Platform

win10v2004-20240611-en

Max time kernel

93s

Max time network

94s

Command Line

regedit.exe "C:\Users\Admin\AppData\Local\Temp\Bypass\Cracked.reg"

Signatures

Runs .reg file with regedit

Description Indicator Process Target
N/A N/A C:\Windows\regedit.exe N/A

Processes

C:\Windows\regedit.exe

regedit.exe "C:\Users\Admin\AppData\Local\Temp\Bypass\Cracked.reg"

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp

Files

N/A

Analysis: behavioral5

Detonation Overview

Submitted

2024-06-13 17:48

Reported

2024-06-13 17:51

Platform

win7-20240508-en

Max time kernel

118s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Bypass\d3d9.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Bypass\d3d9.dll,#1

Network

N/A

Files

N/A