Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c9b1a8b4443d011…

MALICIOUS

PDF

41.6 KB Created: 2020-08-05 23:13:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 197c761e9b7d13211c329077daf5129b SHA-1: baa870ca2936b2c732c6fc470a93227d4d37a4e3 SHA-256: 0c9b1a8b4443d0118662dc32d4aec72f243fafec955cb8e32006611c33f9224d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a lure for job-seeking users, likely leading to phishing or malware download. The ML classifier strongly supports the malicious nature of this PDF.

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=accounting+supervisor+job+description+pdf In PDF document text
    • http://files.threecreekaussies.com/uploads/1/3/1/4/131438150/xanokaf-nojugi-zutisasajev-vuwubananugozim.pdfIn PDF document text
    • http://files.superbiene.com/uploads/1/3/1/1/131164452/17b995c0.pdfIn PDF document text
    • http://files.tramitesexpressinsurancega.com/uploads/1/3/0/7/130775432/lizabez.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/1/0428/9835/8432/files/1028728638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4029/1486/files/8317862215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/1268200325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1144/8729/files/bidup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5382/5704/files/17448683325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/how_to_block_someone_on_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/nutrition_care_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/91507051803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/39253583984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4954/7936/files/mugevugevubok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6427/0743/files/96719208788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/kezibikufobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6662/2105/files/pokepilo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6534 5348 bytes
SHA-256: 7482c5345eaae9a14b4722d806af09f8a86068e0864b5f954cac6bffb1df1d2e
font_01_sfnt_off00007788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7788 9892 bytes
SHA-256: 439a98597ad0980e70a5de3189cdf0f0c4b1f6ed10e4ee5bdac7c3ce238eb3b0

Open this report in the interactive analyzer, or submit your own file for analysis.