Malicious PDF — malware analysis report

Static analysis result for SHA-256 c722ac3dfd234cab…

MALICIOUS

PDF

54.1 KB Created: 2020-08-14 02:50:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 797f3661fd4e3eb1d41225455735bcd5 SHA-1: d0596a8dc7e4f831efabd283da930ae2c405459d SHA-256: c722ac3dfd234cab5ace9781254545c6d019c6d203be2d8e8dd67c8f899f7d21
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to domains that appear to be part of a link farm. One of these links, 'https://ttraff.cc/pify?keyword=sheets+meaning+in+marathi', is known to redirect to malicious infrastructure. The document body itself is heavily obfuscated and contains the same suspicious URL, suggesting it is the primary 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.cc/pify?keyword=sheets+meaning+in+marathi In PDF document text
    • http://files.sefha.net/uploads/1/3/2/3/132303068/kitelejizimimokuzaxa.pdfIn PDF document text
    • http://files.beyond-dog-training.com/uploads/1/3/0/7/130739239/b6c8dec160788.pdfIn PDF document text
    • http://rulozinu.davidstabler.net/uploads/1/3/0/9/130969426/30bcd93.pdfIn PDF document text
    • http://jijuwiso.onsceness.com/uploads/1/3/2/8/132814900/8753833.pdfIn PDF document text
    • http://vorav.brightoncoffeehouseandtheater.com/uploads/1/3/0/8/130874666/e9c5a2c7d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/xuxab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9369/4366/files/easy_biscuit_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/29421193566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6562/6015/files/phet_balancing_chemical_equations_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/bell_407_flight_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8538/9206/files/cricket_score_sheet_pdf_blank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8883/files/lupus_anticoagulant_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/rikokub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/majefuxewov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6663/0037/files/nogezekilowivulepusafiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/14469246188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1456/9640/files/funaguledev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/wigutuvipite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/bernardo_nante.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000655e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655E 4848 bytes
SHA-256: 5b5d14abcc8fdc07ce52da0fbc8d0fd09675af1bdf51d6b2ea7ad6df2c2b1825
font_01_sfnt_off00007596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7596 10188 bytes
SHA-256: 6a5517bd10d298fc95f1fdd2e039ddf04f4f5a255409174fc9c897bfa43e236e
font_02_sfnt_off00009869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9869 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
font_03_sfnt_off0000a66b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA66B 11324 bytes
SHA-256: 40f0f6b4ec82a00fb6509841d318d851bc3e07db7b3b8d680505c49d0f374a4f