Malicious PDF — malware analysis report

Static analysis result for SHA-256 8917916f8de847b9…

MALICIOUS

PDF

66.5 KB Created: 2020-12-01 04:18:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: caabd6703c4148a40ee2b1f3ae185867 SHA-1: 38a4becf5ea054a2413a6d1cd1d0fba0dadb2887 SHA-256: 8917916f8de847b9496abec9aacce5dde0b08230a10231ca6129354e7a33ce70
156 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a link farm, indicating an attempt to direct users to external websites. The primary malicious URL identified is traffset.ru, which is likely part of a phishing or scam campaign. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffset.ru/123?utm_term=spell+slots+short+rest+druid PDF link annotation
    • https://wabemogulumog.weebly.com/uploads/1/3/4/3/134384503/dikikaraxivogava.pdfIn PDF document text
    • https://davavenetu.weebly.com/uploads/1/3/4/5/134500413/b97bb1ba9eca23.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc2e6675bcb0228a28f7e67/t/5fc4f3dd61e25426e1d33e08/1606743006358/88945898543.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4d019b1ed03538d15b64/1606372615068/kolepabenojopodomodupod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a915101-b299-4183-a014-b4c4d459c35b/12032993180.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf60f9d104e5f152d355f/1606219280389/54587751046.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d862a936-ed3b-4c23-a844-ac6587cc09de/master_shots_2nd_edition.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd6e2c6d96458361c2338/t/5fc134f29b1ed0353807a496/1606497523184/80876843295.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbcac158-c8cd-46ce-9988-e016de5d4f50/sims_3_hybrid_mod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4deb088c99b6d37c0af76/t/5fc58c2c173fb5383b618a48/1606781996889/evony_attack_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d4086b97992eb55bb7f9/t/5fc4f043e18c5c478e966acc/1606742084237/48663231188.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0805cd49dd12447321748/t/5fc21634a97599144e3ee492/1606555188949/girl_scout_cookie_order_form_2020_printable_chicago.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc27e0b2cf09257bd761280/t/5fc46cd51972c46e3c2b3f59/1606708437427/zuvawupiwizelimewiro.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd1a827dd1bd0a7626427e/1606228611433/40473357145.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf7cf5c3-78e3-4f3c-b83c-77642088a861/36913403056.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_off0000c9ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9EA 4940 bytes
SHA-256: 555db2a8659142643ee64ea931d6889ae0569ebf74f48095f180e099ffece5a0
font_01_sfnt_off0000daad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAAD 10148 bytes
SHA-256: 0d9dc335c3850e07ef5636023ed27646a79ceced33d8c47c5c3178178033b38f

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