Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f01781b431c7a88…

MALICIOUS

PDF

48.7 KB Created: 2020-08-12 03:12:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84704b3e467fa2a7fc2fcf31dba8589b SHA-1: 6c39d29938febef5d790e5a6188ce9c95efc693b SHA-256: 3f01781b431c7a88408e75d6635dfa68ad73dd69659aef22e5c291e83a2e0068
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=administrative+coordinator+job+description+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, with a significant portion hosted on cdn.shopify.com. The document body, though partially corrupted, also contains the primary malicious URL, reinforcing the lure of a job description to entice clicks. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=administrative+coordinator+job+description+pdf In PDF document text
    • http://files.pathpointstowellness.com/uploads/1/3/1/1/131164424/1973894.pdfIn PDF document text
    • http://files.trinitybillings.org/uploads/1/3/0/8/130873708/3643930.pdfIn PDF document text
    • http://files.backstageknitting.com/uploads/1/3/2/6/132695805/a3d59fc6b.pdfIn PDF document text
    • http://files.shopthirdculturebakery.com/uploads/1/3/0/9/130969656/06f8324b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/vegagewowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/icao_annex_2_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/jafufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4620/7650/files/xarederirukolevidogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5101/5577/files/74075946509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wozofedotomutigetipire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0990/8642/files/sinurilerivitowifog.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7339 5320 bytes
SHA-256: b45df7651d8c4f3db58201aba6d2ae169fe941d869b22affe00dab9952e37798
font_01_sfnt_off0000852d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x852D 9932 bytes
SHA-256: e49846f106dc34c1eeb6373cca81f84930db19e2409c2f1afba8f372360afccd
font_02_sfnt_off0000a6ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6FF 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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