Malware Analysis Report

2025-08-10 21:21

Sample ID 240527-ns5e2aba43
Target update2.sh
SHA256 0ae12fe3bc8ca1cfbe660f79254dd8b20db735c58ebd087fc37bac099ff6b874
Tags
score
3/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
3/10

SHA256

0ae12fe3bc8ca1cfbe660f79254dd8b20db735c58ebd087fc37bac099ff6b874

Threat Level: Likely benign

The file update2.sh was found to be: Likely benign.

Malicious Activity Summary


Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-27 11:40

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-27 11:40

Reported

2024-05-27 11:43

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

120s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\update2.sh

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000_Classes\Local Settings C:\Windows\system32\cmd.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000_Classes\Local Settings C:\Windows\system32\OpenWith.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\update2.sh

C:\Windows\system32\OpenWith.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.147:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 147.61.62.23.in-addr.arpa udp
NL 23.62.61.147:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-27 11:40

Reported

2024-05-27 11:43

Platform

win7-20240221-en

Max time kernel

120s

Max time network

124s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\update2.sh

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sh C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell\Read C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell\Read\command C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\ C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sh\ = "sh_auto_file" C:\Windows\system32\rundll32.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\update2.sh

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\update2.sh

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe

"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\update2.sh"

Network

N/A

Files

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

MD5 1b495af4aec827fa8396be0aa4b5df08
SHA1 c8ee688937f51ee1cd197f97be83bf01369c2c85
SHA256 67baf45a75623383e725227303dfc1951b207f75e345ccd57a32cca5ee874bca
SHA512 43a574b71f5af4113b8e3fec48a9736cee92a98eca3e503d8ce57d5fd8d659c6dbd3c5a61b9a1d0135f6da99803d7dac195acd64809c459dc8ae649ee079de9f