Malicious PDF — malware analysis report

Static analysis result for SHA-256 514d7b0c7ab0a08b…

MALICIOUS

PDF

42.0 KB Created: 2020-08-16 00:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c52f7d44e91f66e90c937051f6043b2d SHA-1: ffcd63b82de21e51f7b277d2926da35bf5daa112 SHA-256: 514d7b0c7ab0a08b41b9d32218751b577b256983f48f6eec6144fccb1b73a7cd
170 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Advanced manager pro apk for android' and a URL that appears to be a lure for downloading software. The presence of numerous external PDF links suggests an attempt to distribute content or redirect users to malicious sites. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.cc/pify?keyword=advanced++manager+pro+apk+for+android In PDF document text
    • http://files.bahamasvirtuallearning.com/uploads/1/3/1/6/131636808/7392318.pdfIn PDF document text
    • http://files.ilovemyminischnauzer.com/uploads/1/3/1/8/131856715/kimowojetuwoda.pdfIn PDF document text
    • http://files.buildingbrilliantlives.com/uploads/1/3/1/3/131383648/3008167.pdfIn PDF document text
    • http://files.cierrasedgeamstaffs.com/uploads/1/3/1/6/131606697/xokegiwepebupokuzig.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/1/0427/4782/2236/files/chemistry_prentice_hall.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1358/5566/files/97296535059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6726/files/66091974547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/lunagetugapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4184/0552/files/38944331549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/gold_leaf_sheets_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/bonulitotavinapabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6279/5171/files/92585645121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9232/9119/files/kekusosofosujedesirufore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/vumulab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5700/4192/files/delisedonakexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7593/5134/files/food_handlers_certificate_final_exam_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3256/4132/files/crimenes_celebres_alejandro_dumas.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000658e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658E 5380 bytes
SHA-256: 71c4b6991c3503a043861572f64b9ef8ca37ce638e7c445e31a21d54e063b83d
font_01_sfnt_off000077c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C7 10284 bytes
SHA-256: bb9336cd79e85176a19cfd2fdcfab3d237f918f23cb166d32cfba7ae5943f39b

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