PDF malware analysis — malicious · e97e90cf46786cb2

MALICIOUS

PDF

54.2 KB Created: 2021-04-13 15:12:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b9e1a6b74785c2359ebe6d01aa71a3e8 SHA-1: 5347001c46e7dfbaa64eb7206b4d287031b4f4d9 SHA-256: e97e90cf46786cb268084182402c9f87d51dd269f4bd93bbab64882bc07486af

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics identified it as a link farm with numerous external URIs, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata related to 'Arbonne fizz sticks side effects' and the wkhtmltopdf tool, which may be a lure.

Machine Learning

Nyx PDF Classifier malicious score 0.5822

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://ambrose.edu/sites/default/files/webform/talizovub.pdf
- https://www.jwico.com/sites/default/files/webform/23528315583.pdf
- http://www.sumnercountyhospital.org/sites/default/files/webform/27017481005.pdf
- https://www.blplegal.com/sites/default/files/webform/32112495638.pdf
- https://www.termis.org/system/files/webform/53478461308.pdf
- https://www.woonsocketri.org/system/temporary/webform/51053607868.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=arbonne+fizz+sticks+side+effects
- https://ubmemeaensoprod.s3.amazonaws.com/ifsec_international/call_for_papers/2021/03/pitoripizebareko.pdf
- https://printandmail.princeton.edu/system/files/webform/50156150340.pdf
- https://lib.asu.edu/system/files/webform/53252105934.pdf
- https://gradfutures.princeton.edu/system/files/webform/42179508969.pdf
- https://printandmail.princeton.edu/system/files/webform/31356988355.pdf

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