Malicious PDF — malware analysis report

Static analysis result for SHA-256 80225d3cba143399…

MALICIOUS

PDF

81.7 KB Created: 2021-02-13 22:40:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: f2af51204fab2840328e10aa00f2e3d1 SHA-1: e365c93eb1cb828b9d40435e750245e43d8d19e7 SHA-256: 80225d3cba1433994e5d1de3f832d525688bef9bc955d252146a9efb381646f1
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers, indicating malicious intent. It contains invisible links pointing to suspicious domains, with one specifically leading to a PDF file named 'tarifs_chronopost_2019l8a5x.pdf', suggesting a phishing lure related to shipping or billing information. The presence of multiple external URIs and the callback phishing heuristic further support a social engineering attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://baarspo.ru/123?utm_term=ihome+manual+ibt29 PDF link annotation
    • http://fruits-summer.fun/losifidizevezelaxadaxifip073fr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385413/normal_5ff4f068d9855.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/7Y1P94F/38181117470.pdfIn PDF document text
    • http://managerprogram.live/tarifs_chronopost_2019l8a5x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470703/normal_5fe94c1e2befb.pdfIn PDF document text
    • https://cdn.sqhk.co/gabazumad/ehghJtC/67290942082.pdfIn PDF document text
    • http://edarudost.online/86942395728kurnq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490380/normal_60014d2843a8b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378607/normal_5ff2930c99126.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xakusineba/firefox_developer_offline_installer.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/instagram_story_games_questions_with_answers.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/47496423571.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/autodesk_cfd_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/nadevajusabegab.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000103f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103F9 5016 bytes
SHA-256: 93c554277228f139d53cef5f5b4d0c5ddf4920c0b3ee6543deb982a7e86ffb3a
font_01_sfnt_off000114e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114E2 11268 bytes
SHA-256: 03a8c50e32da5e313d1050d617778905061fe3a4e934f755ca8202ff59e272c6

Open this report in the interactive analyzer, or submit your own file for analysis.