Malicious PDF — malware analysis report

Static analysis result for SHA-256 de33f7b1dd6ca45f…

MALICIOUS

PDF

43.4 KB Created: 2020-08-19 05:26:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1199f5da407c54d341e3b552e92c51e3 SHA-1: 2c420ddbe7709b8153df40cd625dba8f2df14a90 SHA-256: de33f7b1dd6ca45f8f911b9c12261dc2de488af9641578e4a3f4aa9d7699ec18
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=mts+admit+card+delhi+2017'. Additionally, it exhibits a PDF link farm heuristic, with many links pointing to Shopify domains, suggesting an attempt to distribute content or host malicious files. The ML classifier strongly flagged this PDF as malicious. The document body contains text related to 'Mts admit card delhi 2017' and the malicious URL, reinforcing the lure.

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=mts+admit+card+delhi+2017 In PDF document text
    • http://files.zuntzmusic.com/uploads/1/3/1/8/131856498/2747609.pdfIn PDF document text
    • http://files.equilibranthealth.com/uploads/1/3/2/8/132814400/gefumepuri.pdfIn PDF document text
    • http://files.pheasantruncavaliers.com/uploads/1/3/0/9/130969061/fbb0f40.pdfIn PDF document text
    • http://jinanu.edgewaterbiblechurch.com/uploads/1/3/1/4/131412032/6144796.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/1/0431/6718/7108/files/ai_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7420/7387/files/moxosewepupujebeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/11228270549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/fundations_grade_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2799/files/59133348195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4958/2743/files/ximofaveki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0881/1427/files/amulet_of_the_pit_lord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0149/4178/files/dotuzotipagasunudiruxujol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/3095008509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56751463133.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 8

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_off00005fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBA 5592 bytes
SHA-256: 01d44b5ee5504733c63ac86e6e4c27bc3d62405e1d855a6fff84d21407fde395
font_01_sfnt_off00007294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7294 1936 bytes
SHA-256: 73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190
font_02_sfnt_off00007bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD7 10684 bytes
SHA-256: 830447c6e4ee0e33f34e0f205d6a1d8e60640e0d34aa8ebd7f1b00275eda12d6

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