Malicious PDF — malware analysis report

Static analysis result for SHA-256 68b9800be9875391…

MALICIOUS

PDF

73.5 KB Created: 2020-07-29 10:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1ec0c8f9f0de500184d7de4c1063141 SHA-1: 50f67c933e0f174d035ad86e80a4577b7276d4f7 SHA-256: 68b9800be9875391eb99d5eeae0630a85034805cc39f5d2fec2187deb9a20a73
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to a redirector URL (ttraff.ru) which is flagged as malicious. This suggests the document is part of a link farm or phishing campaign designed to lead users to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of embedded URLs and the redirector link farm strongly suggest a malicious intent to redirect users to further malicious content.

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.ru/pify?keyword=bereketli+topraklar+%25C3%25BCzerinde+kitap+pdf In PDF document text
    • http://files.cherylcanterbury.com/uploads/1/3/2/6/132683087/fapataw-letitumobulek.pdfIn PDF document text
    • http://files.fmemc.org/uploads/1/3/2/6/132681359/figedu_kaxekozu_monilogulab_bixiduda.pdfIn PDF document text
    • http://files.aperfectinjustice.org/uploads/1/3/1/4/131438071/gibavadili_rugolunes_nujagogizi_fusupiwa.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/1/0430/4922/2298/files/96971121214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/duwaxufezemurogagur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5282/6777/files/fabubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1557/5464/files/wiwawela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14490041284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/benala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3698/2944/files/rinurof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/26920626603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1692/8923/files/kigasus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mefawubizujoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/59023515781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7295/4269/files/4563472777.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFE6 4928 bytes
SHA-256: 3a84879d38cbc4391a31f59040d6566f8c2735bb10a46569c39dd73aaab2b3b3
font_01_sfnt_off0000d0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B3 1936 bytes
SHA-256: 23e8663a04537cf7c5777c7f3f1cddb97d1c2c948ab12844add0f362d3082a15
font_02_sfnt_off0000d9eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9EB 12432 bytes
SHA-256: 4ffada049bec82416b49cc55d087475af9295fbf5965561696d1bf27649ca1dc
font_03_sfnt_off0001006a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1006A 16148 bytes
SHA-256: 64f21e55c2f29c6f605e8f9fd96e7f7b34f9b4a26fdc717ddead948457370e3b