Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d88d5b90431bc1…

MALICIOUS

PDF

48.1 KB Created: 2020-08-24 11:13:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a50e50743c52c519ec699c7bbe2c32ca SHA-1: a34c9fb98879b378b4997ad7f52921e0049becdc SHA-256: d1d88d5b90431bc1fc8ec6913835b252a0974b4de817484004a2d28d7e816000
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=behringer+xr18+manual+pdf'. This URL is presented within the document body, disguised as a link to a Behringer XR18 manual. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link.

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=behringer+xr18+manual+pdf In PDF document text
    • http://mozulupe.jamkatzent.com/uploads/1/3/0/8/130814311/8b1e25b40.pdfIn PDF document text
    • http://files.grandmassoapandstuff.com/uploads/1/3/1/4/131436956/nopevifinojategum.pdfIn PDF document text
    • http://files.rockintmeadows.com/uploads/1/3/0/7/130776374/4a8efabd.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/1/0437/3794/0122/files/gemepawasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9220/5978/files/ccrn_practice_questions_with_rationale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/gexogizanivemoxepefipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7818/0259/files/lafemaxinuxigogorevuvul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/fenukovukane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2021/6476/files/fast_car_colouring_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/sharing_economy_platforms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/android_version_8_logo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7879/2869/files/12507790265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/92752600541.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
🗂 Part of campaign: engiellepaguican.com 4 samples

Related samples 3

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_off00007c35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C35 5640 bytes
SHA-256: 3e8e46fdbec4fb5d8afcb26411805b006b9ef13d678ab27051f8059a4982c4af
font_01_sfnt_off00008f46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F46 10868 bytes
SHA-256: c317556118c795abdc10396a6ab94e89b58146e3dec561eab75ffb55e1d65720

Open this report in the interactive analyzer, or submit your own file for analysis.