Malicious PDF — malware analysis report

Static analysis result for SHA-256 2efb89090e5f9eea…

MALICIOUS

PDF

108.0 KB Created: 2020-08-14 05:46:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d4d5bfd9f9ce9524490ff613d3817124 SHA-1: e852ed37d4c32a5dc643ebf1a4adc1fdda30a355 SHA-256: 2efb89090e5f9eea2556fdbc264ba48f7581153ad6f1c2782e41aa4500ecf58f
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, indicating a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=orbit+er+%25D8%25AF%25D8%25A7%25D9%2586%25D9%2584%25D9%2588%25D8%25AF+%25D8%25B1%25D8%25A7%25DB%258C%25DA%25AF%25D8%25A7%25D9%2586, which is associated with known malicious redirector infrastructure. The document body contains obfuscated text and the identified malicious URL, suggesting a lure for users to click through to a potentially harmful site.

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.ru/pify?keyword=orbit+er+%25D8%25AF%25D8%25A7%25D9%2586%25D9%2584%25D9%2588%25D8%25AF+%25D8%25B1%25D8%25A7%25DB%258C%25DA%25AF%25D8%25A7%25D9%2586 In PDF document text
    • http://wovunetum.coldcreekangus.com/uploads/1/3/1/3/131378960/0ce1c5e046527fd.pdfIn PDF document text
    • http://files.switchbricks.com/uploads/1/3/0/8/130814687/710532.pdfIn PDF document text
    • http://files.d2photoblues.com/uploads/1/3/1/4/131453252/xivumowizojizoluxoxo.pdfIn PDF document text
    • http://solaguwu.holychildcatholicschool.org/uploads/1/3/1/6/131606758/wozeserojewefetariva.pdfIn PDF document text
    • http://files.tfmusicparents.com/uploads/1/3/1/6/131637419/8e8939f3.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/1/0434/7969/5526/files/gimaxikupijif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6599/files/local_anesthesia_toxicity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9499/0247/files/75078720634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4399/3238/files/torinixirijadufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2399/6840/files/monizegofamagovok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49605194079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/can_opening_a_on_iphone_be_harmful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/6981/files/wevilowawomoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/fulibawisagixerog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/4118379005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/structural_functionalism_sociology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/19668888583.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
🗂 Part of campaign: classicsenglishliterature.com 7 samples

Related samples 6

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00016523.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16523 33364 bytes
SHA-256: d2462641bc73acefaad8ff997fb9371651931341305bbf9d78df972dab9cfaed
font_00_sfnt_off00011220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11220 4428 bytes
SHA-256: 06ff6b3c887f2d991c580d01bd0d22e1a53bb2b7cfaae184bfafb37c21e465cb
font_01_sfnt_off00012137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12137 16984 bytes
SHA-256: ccb67d4e6d661abb213826ea0b7b9d558a33207388271f18d81a2790b186fa20
font_02_sfnt_off000139bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139BD 13332 bytes
SHA-256: c9fb5e7105c5abc74274f0b44f9dc52707d171fdc059e57fa091bc76fbadae89

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