Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4b3ffe1236928b…

MALICIOUS

PDF

214.3 KB Created: 2020-08-26 05:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 556a6904ea361366fc4a41510ee86ac6 SHA-1: f283d8a9fe7b59eae8be5c784ed91b807e4a548d SHA-256: 7d4b3ffe1236928b250875f5d2c1cf3f9cadf275684a95ba0ba5ca65f1f3d5a9
134 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The ML classifier also strongly indicated maliciousness. The primary purpose appears to be directing users to a potentially malicious website for phishing or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • 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.
  • 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=%25D9%2585%25D9%258A%25D8%25B3%25D8%25AA%25D9%2583+%25D9%2581%25D9%2588%25D9%2584%25D8%25B2+%25D9%2581%25D8%25B1%25D8%25AC%25D9%258A%25D9%2586%25D9%258A%25D8%25A7+%25D9%2588%25D9%258A%25D9%2583%25D9%258A%25D8%25A8%25D9%258A%25D8%25AF%25D9%258A%25D8%25A7 In PDF document text
    • http://jabaten.wowtasmania.com.au/uploads/1/3/2/3/132302963/ranujoduposapavuxi.pdfIn PDF document text
    • http://fesazaxus.iqmantraining.com.au/uploads/1/3/0/8/130814328/ropetuseloxumet-zafulumomu-suxara-zelobimuraregof.pdfIn PDF document text
    • http://files.ordernutsabouttella.com/uploads/1/3/1/3/131398235/21ecfebe6.pdfIn PDF document text
    • http://files.nottsu3anetwork.org/uploads/1/3/0/7/130775653/timadexew-jexesutalu-niretub-daripozuzijojep.pdfIn PDF document text
    • http://files.jancancan.com/uploads/1/3/1/4/131406413/sosazidisajawaj-ledosol-vaxodavuv-ziwobedomanefon.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/1/0446/6225/9865/files/britain_s_got_talent_2017_episodes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9371/1261/files/74149755448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3698/2944/files/ribumebebib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7804/1244/files/tezubevid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/74437004368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8185/9225/files/71375403920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3256/8220/files/veni_creator_spiritus_partitura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9475/files/94207989602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7748/2136/files/after_effects_cs6_free_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/chemical_bonding_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3794/0122/files/jawininitiwa.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00030d9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30D9E 34676 bytes
SHA-256: 87369fdf1e1af343d675f371dced17403bfdb8397d73ed42f077189a3035a81d
font_00_sfnt_off0002c188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C188 4068 bytes
SHA-256: 457a95d2d1619e609b977429d761152f7d5a3c0fe23271f2bb247fdca2d50445
font_01_sfnt_off0002cf66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF66 18244 bytes
SHA-256: e7b0060a5888d683a96628eca9a1af3d6012177d3168511fa19cb7c224311a55
font_02_sfnt_off0002eb25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB25 10516 bytes
SHA-256: 93e46492f1fd6081eddeb452d1db127d1dff6a021ff2b21ed561ed2e8796d5e0