Malicious PDF — malware analysis report

Static analysis result for SHA-256 f756d74d1ddf279c…

MALICIOUS

PDF

41.3 KB Created: 2020-08-05 10:01:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ba431ba12f3fa226b3dc27c068cdfd3 SHA-1: fa0f062260eeb31da33e0bc59fc939e63df20236 SHA-256: f756d74d1ddf279c836d1a9d809d77459cec6f3ed253773845e9849d9b29ced3
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. This URL is presented to the user as an 'Archer c20 manual pdf'. The document also contains a large number of embedded links, many of which point to Shopify domains, likely as part of an SEO link farm to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=archer+c20+manual+pdf In PDF document text
    • http://files.livinginrogerspark.com/uploads/1/3/0/7/130740391/bebimovevugij.pdfIn PDF document text
    • http://files.lindalgraham.com/uploads/1/3/1/4/131455283/7d86161771d526.pdfIn PDF document text
    • http://files.struggleendureemerge.com/uploads/1/3/1/3/131397938/niwixanuxov.pdfIn PDF document text
    • http://files.nadjamoore.com/uploads/1/3/2/6/132682936/6384495.pdfIn PDF document text
    • http://files.cusoeprofessionaleducation.org/uploads/1/3/0/7/130775014/jofuzuboge-dewidipokixivup.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/1/0433/5396/4712/files/76477536007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/serirevekubunodisisap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/37256742394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/xoporiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/92178752213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/36192759055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9660/2779/files/skyrim_se_footprints.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5341/4565/files/allison_transmission_fault_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/13772398901.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_off000056b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B7 5124 bytes
SHA-256: c134c2ffc1e54408abaa5bff6f7e6efbb9f3b6b78328daac9c556e1c27e89be9
font_01_sfnt_off000067f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F1 10160 bytes
SHA-256: c099dc7e4dda35904c9737904f2e8e6215c629e3511cdac02f37632c39e94824
font_02_sfnt_off00008a91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A91 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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