Malicious PDF — malware analysis report

Static analysis result for SHA-256 f89cc329ff24a5eb…

MALICIOUS

PDF

71.8 KB Created: 2020-08-17 12:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27bd9509ce0c5657521f76731d8536ff SHA-1: 27ceef82d7fe7ba5ed93542d80ee43a91cead892 SHA-256: f89cc329ff24a5eb9f45acabcfbab11f409d6e05fef111e046d38b756d4c7a0e
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=ignou+application+form'. It also exhibits characteristics of a PDF link farm, with numerous embedded links. The presence of a 'download button' heuristic further suggests a lure to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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.com/pify?keyword=ignou+application+form In PDF document text
    • http://files.jason-fritz.com/uploads/1/3/1/3/131398117/bapoga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/pitusabepabuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/20074460332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4455/9258/files/relieving_letter_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8184/9245/files/39344282899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/21070057402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1481/4885/files/kurosebifipevowoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/munejaxajikutom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2854/5693/files/dixajuzabevenijukojozulod.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_off0000b81e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB81E 5096 bytes
SHA-256: d7b76a6ef1f13a8c91453c3b1f4abea93e72085aec01afd07d16566b4928fc37
font_01_sfnt_off0000c960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC960 10624 bytes
SHA-256: 70146dfbdcceea5251617e42b726d7932aa5cd34261338844d41473deb70a2af
font_02_sfnt_off0000ed9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9C 16164 bytes
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e
font_03_sfnt_off000102ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102ED 3968 bytes
SHA-256: c759dc55a4f5b46339faee898d420b8ed8ae04769135fa9975fe34ec3fc1bb41