Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f6ebc2a1213da3a…

MALICIOUS

PDF

41.5 KB Created: 2020-08-19 19:05:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cce6cd38181079220c61c3afe14e3541 SHA-1: c0b2e483ba3d92888ca6ccb7af9b8e7bbdfdbbb8 SHA-256: 2f6ebc2a1213da3aa6e6eb718f814ef47ffb3ec981940ef145036c81527bd707
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains a URL that points to a known malicious redirector, 'ttraff.com'. This suggests the primary intent is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or traffic redirection.

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=how+to+manually+drain+a+whirlpool+washer In PDF document text
    • http://files.robertsgreenhouse.net/uploads/1/3/1/0/131070035/vukaxalik.pdfIn PDF document text
    • http://kujubow.catlavoie.com/uploads/1/3/2/3/132302857/cba5ea1b6a9180.pdfIn PDF document text
    • http://gopap.2016turkeytour.com/uploads/1/3/1/4/131453870/ded3dd1e244bf37.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/1/0437/8945/1425/files/50286566000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6509/8908/files/moon_river_frank_ocean_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/adhyathma_ramayanam_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/tofik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1091/4466/files/psychological_assessment_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6740/4451/files/fitekiwabutixafisuveki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/longman_dictionary_contemporary_english_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/kreg_workbench_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/zosafivibikomekelojax.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6478 5356 bytes
SHA-256: 9f78bbd02290a16147aca31bc7d400dde859c0f27c328317af111634bfde38f0
font_01_sfnt_off0000768e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x768E 9992 bytes
SHA-256: 0c6172611cd1f0ed011d49c82d7ecc5e2339b073d154903ba97f4d52c2441543

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