Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1f82d087bcc53a…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 23:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3561935601b4b2123d1fac4458e5681b SHA-1: a01321ada5fc9881f4ca5ea5b088d51239440235 SHA-256: 2d1f82d087bcc53a1269bd96d501e323a2c8efd978ff822dbc12e7dfd37f7afc
202 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for 'current affairs' information. The presence of a mass external PDF link farm further indicates a malicious intent to distribute links. The primary IOC is the malicious redirector URL.

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.ru/pify?keyword=august+2020+current+affairs+pdf+in+gujarati In PDF document text
    • http://files.shaindeesmakeup.com/uploads/1/3/1/3/131381109/liruvojurefaz_runoxiwuvaga_daruxovigevo.pdfIn PDF document text
    • http://files.azlames.com/uploads/1/3/1/3/131384589/povozo.pdfIn PDF document text
    • http://files.posarro.com/uploads/1/3/1/4/131453021/8143682.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/1/0438/9568/5288/files/singer_31_15.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/ruxipiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6903/files/sivoxibup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3092/9827/files/suvatunamajijixozur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2835/6000/files/95183723935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8114/6280/files/73323942567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2950/3908/files/jomarosorekupap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/19887168063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9281/1681/files/tapenajibuxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/98336086542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/benabozebutot.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_off00005408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5408 5400 bytes
SHA-256: 7d7cb557e1eba24b43a3afdd4490db9f86ea20438073996d4cf7a4ae3506107f
font_01_sfnt_off00006673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6673 9904 bytes
SHA-256: c91fd90e6e62162c39e1f8a5b1eaf4a6ce1f09b178cbe1e498a5b08abfdb06c2
font_02_sfnt_off00008852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8852 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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