Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b99b6fff4e9d330…

MALICIOUS

PDF

53.9 KB Created: 2020-08-19 09:57:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7345eda4e21895a6f9a15080d3bb9165 SHA-1: b197dfbcf6af9396567266985641c438ae6e366c SHA-256: 6b99b6fff4e9d330c5323c9d36e4de044b7dabd2497bd4dc9237d5e5097cde3a
194 Risk Score

Malware Insights

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

The PDF document uses a lure of a 'technical architect resume format' to entice users to click on embedded links. These links redirect through 'ttraff.com', a known malicious redirector, likely to deliver a second-stage payload. The presence of numerous external PDF links suggests an attempt to manipulate search engine results for malicious purposes.

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=technical+architect+resume+format In PDF document text
    • http://files.aubreyloganterry.net/uploads/1/3/0/7/130740318/lanugalolabukike.pdfIn PDF document text
    • http://kibifukel.henleynaturalburials.co.uk/uploads/1/3/0/9/130969904/zaxif.pdfIn PDF document text
    • http://files.801fig.com/uploads/1/3/1/3/131398424/7030370.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/1/0432/7306/0520/files/dekulajetotidafisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/52270321075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9200/1433/files/cema_belt_conveyor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0390/2112/files/adverb_english_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2129/5003/files/minecraft_mob_spawning_distance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8060/9945/files/degadoronelibas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/alcalosis_metabolica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0631/2091/files/47581905991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3975/8235/files/zirezawexilumero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6418/8312/files/71506636957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/dubim.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 3

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_off0000880f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880F 4952 bytes
SHA-256: cbd708fb2201bfed752c401593fb2bd1b4ecc775b9c67dbda9d2928d1009b4ec
font_01_sfnt_off000098a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98A7 10420 bytes
SHA-256: c772a90b5f2d682629200d527668ecc4337b269adbc916aa77fab765625f1664
font_02_sfnt_off0000bc4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC4A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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