Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8bf0387ad42baa7…

MALICIOUS

PDF

52.0 KB Created: 2020-08-09 11:37:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34b9d169a08d26a2cb74b0102b894495 SHA-1: f95341ac8b6ed40ece0acb8be4598b3dc7d06851 SHA-256: b8bf0387ad42baa7a5337d2dd4ae689ba0606e3c2cba1f07bafd87961527accd
202 Risk Score

Malware Insights

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

The PDF contains a link to a redirector hosted on 'ttraff.com', which is flagged as malicious. The document body and embedded links suggest a lure to a fake file converter, likely to trick users into visiting malicious sites. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farms used to improve search engine rankings for 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=file+converter+pdf+to+word+zamzar In PDF document text
    • http://files.wtcflashback.org/uploads/1/3/1/4/131437515/3923001.pdfIn PDF document text
    • http://togadox.100blackmenofsanantonio.org/uploads/1/3/0/8/130814328/linivugixakikinu.pdfIn PDF document text
    • http://lerebebin.jesswcoleman.com/uploads/1/3/1/4/131406717/kokuwog_lominevigapov_fafesi.pdfIn PDF document text
    • http://rakitigip.skincarebydonna.com/uploads/1/3/0/9/130969754/5d31e96f1728e4.pdfIn PDF document text
    • http://files.mamathewsproductions.com/uploads/1/3/1/6/131636807/e5dd078233bd05c.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/1/0429/5606/2876/files/jokofaruwefun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/vakagodumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4357/7256/files/38626931872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/32820782501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/vogiwiwizejox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3775/3501/files/68585508085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/sufugutenatezemoxowemajuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/dirulesama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0656/6306/files/comparative_form_of_adjectives_and_adverbs_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4099/files/the_bible_old_testament.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/31800143077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9132/9173/files/gitogatelubikafolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/kelojikivivaxunizavererig.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E98 5068 bytes
SHA-256: 77deb8d7dfdf6d38f0ea95b7147b43307fbe5b8c187588c2b2d98968141354f1
font_01_sfnt_off00008fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FCF 10640 bytes
SHA-256: 6ad405918069c1fc41fdac742eb93158313d0eba345c9a84c605438790af7e39
font_02_sfnt_off0000b442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB442 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e