Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed4698a0361a5d6…

MALICIOUS

PDF

40.4 KB Created: 2020-08-24 18:24:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc9dbd38221e40a854cd0a9c866cae7a SHA-1: 0e158a1835035d1216d62b121d2ddb47ba1545d1 SHA-256: 2ed4698a0361a5d6df3ee325b64217100d5db1cea1d0a71ad2097d909df4231a
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation, likely as a phishing lure. The embedded URL points to a redirector, which is a common technique for delivering malicious payloads or leading users to phishing sites. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ttraff.ru/pify?keyword=samsung+i9300+adb+driver In PDF document text
    • http://ximobugo.ccis.ccsdtitle1.org/uploads/1/3/1/4/131407227/sonepejokoxekelese.pdfIn PDF document text
    • http://files.oakparkbands.org/uploads/1/3/2/6/132695543/vonam.pdfIn PDF document text
    • http://mujabiju.elitemeddistribution.com/uploads/1/3/0/7/130739897/447e7.pdfIn PDF document text
    • http://filoto.shotoryujutsukarate.com/uploads/1/3/1/6/131636725/1928515.pdfIn PDF document text
    • http://dipeza.triumphofmercy.com/uploads/1/3/1/0/131071164/234ffe960926f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/31953080646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0133/files/kodemizogiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/lejagodazifawijarasugikat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1288/1564/files/october_2018_calendar_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/35075823560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9656/4131/files/vifamijaxetifif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4093/7896/files/appearance_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/siloguvidabavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2290/1663/files/66614005822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9424/5525/files/71838340649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/xebebebutowakoze.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_off00005e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E83 5876 bytes
SHA-256: 5fbfaadc52940bd858bdaa8d78963863948f258dc7f05bdd6e2227c377c86f43
font_01_sfnt_off0000725d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725D 10068 bytes
SHA-256: 80955c3a54752f9ed4ac004bb99158d5b795d639afc87bfa1ba1b59817c7db90