Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a42667b971f540…

MALICIOUS

PDF

38.5 KB Created: 2020-08-14 17:41:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc17815fec4b460197a24ae98bcd726f SHA-1: 029a4f20e44617ba09c29536fc516b913a42c9da SHA-256: f6a42667b971f540433c3dd98feac9e7cef9fd5698bf08c1cc2bb5e41ac246d8
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though corrupted, appears to be a lure for a 'Bharat petroleum gas dealership application form', combined with heuristics indicating MFA/credential harvesting. The presence of numerous external PDF links suggests a link farm designed to obscure the ultimate destination or to spread malicious content.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=bharat+petroleum+gas+dealership+application+form In PDF document text
    • http://files.mascotwesley.com.au/uploads/1/3/0/7/130775737/653139.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/1/0443/8809/0022/files/dexirof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7296/files/vexelivuxigev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7741/8656/files/xakujesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2544/8615/files/bncc_ensino_medio_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4935/2349/files/sinezufojivudukajesegew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8487/files/what_does_mending_do.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9092/0099/files/54240006350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2821/8010/files/93731407017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3908/7002/files/xasepotakewaporazumupiwiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5739/files/jasixebuwunefasurekutitag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4206/8887/files/tomiwon.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59DA 5616 bytes
SHA-256: d09394618762cb196e326b3e187497751de6d965887b226d6956ee2b2030068c
font_01_sfnt_off00006cd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD4 9456 bytes
SHA-256: 64eb27c7024532df16b61fe537ed032491813602509b90a72097c351029c0e36

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