Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aec37e534465225…

MALICIOUS

PDF

45.5 KB Created: 2020-08-12 22:26:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4202a28e7c793c818102f0b2e8d4cb1a SHA-1: dcf54ba5d30ac8faff228f8a229bab3df7c747c0 SHA-256: 2aec37e5344652253a9f5d250676114c831925ade0150e66e9696da9726f2471
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the primary malicious URL. No scripts were extracted from this sample.

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=affirmative+negative+interrogative+exercises+pdf In PDF document text
    • http://files.olydemocrats.org/uploads/1/3/0/7/130775592/7446023.pdfIn PDF document text
    • http://files.demitylaphotography.com/uploads/1/3/0/8/130874264/4481629.pdfIn PDF document text
    • http://puxudexit.muckandgold.com/uploads/1/3/1/1/131164048/2416499.pdfIn PDF document text
    • http://files.cameoimpressions.com/uploads/1/3/1/4/131482822/seteniv_ganajegemeped_jopagojajum.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/1/0436/0932/5730/files/50448374455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8889/9224/files/61123434882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/zepepovanotesewuravapazaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1282/2939/files/nanopam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0084/5720/files/sample_of_fedex_air_waybill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1724/files/rofidozol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0983/3117/files/rutafefejilewoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6427/8686/files/aqua_unit_patrol_squad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9482/5376/files/28394728945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/83233943718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6330/files/52502338205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/bending_stress.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2973/9173/files/57140314954.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: cameoimpressions.com 4 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2D 5560 bytes
SHA-256: 8a1ca8319460d4530a2b681829bb0db4c922f8127a3ccef9566b7710e0a8e401
font_01_sfnt_off00007100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7100 10164 bytes
SHA-256: 43d6ac63be483fa53f4b116c78378ba24b41bd4d6ee5cb6bcbbec7fdf39e9b4e
font_02_sfnt_off000093e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93E7 16064 bytes
SHA-256: bc204826b4a8e89d94c6b451048e0ee4769fbbcf877f688c94b05cbabb688319