Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a24d0632c00d524…

MALICIOUS

PDF

42.1 KB Created: 2020-08-14 14:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7db28f3a549acc27605d10fe577e3f6a SHA-1: 96bd4d493faa78c70fc411060a86c395b3911d45 SHA-256: 2a24d0632c00d5241cf4f62e2d3522f0ef053b8e90c123bd29de9e573a8f7575
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Alef education platform' and includes the primary malicious URL. The presence of a link farm suggests an attempt to distribute malicious content widely. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=alef+education+platform In PDF document text
    • http://files.lakechristianministries.org/uploads/1/3/0/8/130874646/703dfb.pdfIn PDF document text
    • http://nenomaj.bradentonfiredepartment.org/uploads/1/3/2/7/132712380/lixosujejilo-sewapafolaga-lixoveboto.pdfIn PDF document text
    • http://files.revitalizefitnessnutrition.com/uploads/1/3/0/7/130776826/b5d44aa6d64.pdfIn PDF document text
    • http://files.thedaisyhouse.net/uploads/1/3/1/4/131406826/ae00bbfd70f.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/1/0430/3123/2666/files/suxafugalifivawoxelajog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4038/2882/files/97842554419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/8272369034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/tonipixilalaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1188/2655/files/ganisutapukekogaweravi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/dexadabazopugone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/1267196629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/40281063988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6166/files/nojunek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/wokerewozaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/vakifavizanipiguguri.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6305 5112 bytes
SHA-256: 4817c3eea07ae09917a2827fe8748ac2624712ac4259fe3b1dd0d5b5d78dbece
font_01_sfnt_off0000744b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744B 12180 bytes
SHA-256: 45c4ef7daa197ced7d781be20bab1a86a5f860257db3b3b800b81aa1c56fe740

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