Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd3eb9d50c234ed4…

MALICIOUS

PDF

62.4 KB Created: 2020-09-16 18:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6456d1f2acaab2fac43aa25166ab1668 SHA-1: 09868dbb4ab73e707174bd7ee6bc5006de5a8402 SHA-256: bd3eb9d50c234ed44b48a9fae446fde7bc6aa53e691628d374bed985fbcfe7eb
194 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, specifically pointing to 'https://ttraff.me/wix?keyword=emirates+nbd+mission+statement'. The document body, though heavily obfuscated, includes this URL and appears to be a lure related to 'Emirates NBD mission statement'. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or redirection strategy to obscure the ultimate destination. The primary malicious URL is the most critical IOC.

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.me/wix?keyword=emirates+nbd+mission+statement In 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/1/0429/4973/8650/files/81933547088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8827/2805/files/motikifopigesiwok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/curso_de_espanhol_bsico.pdfIn PDF document text
    • https://b5602a9f-7d32-4e80-8f2d-7f80397e5b17.filesusr.com/ugd/36d413_01bc2b83a23e4587ac4625b39a0b7555.pdf?index=trueIn PDF document text
    • https://35a6b2bf-0d45-4ae0-aa17-f2ea38ea0f8a.filesusr.com/ugd/e2b09b_8799e1e76a9f4f3d99bb756767c74a77.pdf?index=trueIn PDF document text
    • https://e4e06f3b-4d4d-4a12-a091-6caaf84afef4.filesusr.com/ugd/cc3ca9_f19dfec970214b6eaea276670c9cdcd3.pdf?index=trueIn PDF document text
    • https://8e6322f1-ce9f-4b43-ae6c-8e43d04dba42.filesusr.com/ugd/8c2e83_cf4035166ba2435db8d6c17ecb2e0f11.pdf?index=trueIn PDF document text
    • https://c5820045-c0d6-430a-b988-224c4fc7ba48.filesusr.com/ugd/384ea4_4af3af3088924c53b1d8be1995a6bd31.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6165/files/laxepemijuwasek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5368/4638/files/joseph_e._johnston_narrative_of_military_operations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/48449079607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3762/1404/files/birla_sun_life_mutual_fund_sip_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1239/9009/files/84090888815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/cmos_operational_amplifiers.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_off00009576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9576 2828 bytes
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
font_01_sfnt_off00009f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F71 5036 bytes
SHA-256: 4f978993b6141e6483cb13d2fb74ae7fee807837e50baaa63d275d53c17d62a0
font_02_sfnt_off0000b06e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB06E 10120 bytes
SHA-256: 04664b4d015f7b94c014122dd991d64d8a4c40a6332364b5cccfa14f77bb165b
font_03_sfnt_off0000d34f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD34F 16488 bytes
SHA-256: a24b379294965881213f6bc3e9db9f5314a2d8a06b10cd027b2e5f3c9ddd95e2