Malicious PDF — malware analysis report

Static analysis result for SHA-256 44093c347f3e4d3c…

MALICIOUS

PDF

67.1 KB Created: 2020-08-23 07:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61f0124870d3b953af481354059dd4b7 SHA-1: d4dc4b75e6f20f441cd6e74a11046e94f4c0cb53 SHA-256: 44093c347f3e4d3c8225403ce69923ad77d957eaff4aacfa6bdb4fbbb0061155
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used in conjunction with a search query lure. The document body, though heavily obfuscated, contains the same search query and the malicious URL, indicating an attempt to trick users into clicking through to a potentially harmful site. No scripts were extracted, limiting further analysis of the payload.

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=teachers+day+songs+in+tamil+free In PDF document text
    • http://kunam.lovespellz.co/uploads/1/3/0/7/130775503/basib-wezuviraw-xevolikov-tavovemebed.pdfIn PDF document text
    • http://basik.miaouofficials.com/uploads/1/3/2/8/132814930/solukuzut-lireve-nomeposexejep-jizegugidev.pdfIn PDF document text
    • http://files.worldyouthpeaceforum.com/uploads/1/3/1/0/131069744/5e364794c27e03.pdfIn PDF document text
    • http://files.mdmaternityaccess.org/uploads/1/3/0/9/130969129/6a994.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/1/0436/2177/7570/files/the_voice_season_14_judges_performance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8549/files/besoxomikibelofinufetopub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/17263653494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3165/7621/files/80541058919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/cancer_de_boca_ministerio_da_saude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/84376462903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2823/1830/files/72940954447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/files/jagogurabelifuputijuzewol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5630/0186/files/89210200185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/9178985322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7840/8609/files/jolly_phonics_finger_phonics_books_1_7.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9CE 5484 bytes
SHA-256: f34eebe6198a6214cdefdcdcd60937890d47cbc6c3d9e6dde33db037ecf68333
font_01_sfnt_off0000bc4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC4F 14524 bytes
SHA-256: 4a9b233061050f023885904de93533a364d74808de1b18f5b01b7ea8caf9ee36
font_02_sfnt_off0000e9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F4 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e