Malicious PDF — malware analysis report

Static analysis result for SHA-256 371471e0978e398b…

MALICIOUS

PDF

61.1 KB Created: 2020-08-28 03:19:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e72cdc1b1bfd13fcc52c5b9580f0146f SHA-1: e36ac9fe2f4cac0d8e77088b03ae26e2a3e2e1f5 SHA-256: 371471e0978e398b299e3a68964513b284f8134371a83d1c988a21da166906de
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with a keyword relevant to the document's apparent content. The PDF also exhibits characteristics of a link farm, with numerous links pointing to external resources, many of which are hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be social engineering through a deceptive document title and embedded malicious links.

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=diagrama+de+transmisiones+automatica In PDF document text
    • http://files.bhktrading.com/uploads/1/3/0/7/130740618/pivalisejarej_zovopuse_rimifumubod.pdfIn PDF document text
    • http://banuvanem.edmontontowingcompany.com/uploads/1/3/1/6/131607919/mirefut.pdfIn PDF document text
    • http://files.inspirenetworks.net/uploads/1/3/1/4/131452922/4513656.pdfIn PDF document text
    • http://gavuje.roseheartbulldogges.com/uploads/1/3/2/6/132695643/c7f84d18.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/1/0429/0255/2735/files/change_your_words_change_your_life_joyce_meyer_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7684/5728/files/sociolinguistics_by_hudson_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4302/8120/files/terap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4837/8280/files/titazisibuzafaful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4657/5016/files/patofisiologi_asma_pada_anak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1943/5936/files/lakajomufegik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/92803053562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2224/6042/files/greenvale_reservoir_fishing_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3797/4950/files/97773318195.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 4

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_off0000a7aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7AA 5224 bytes
SHA-256: 8ab2a65f3db25a4a0bcb9ad57ac5fa74037098e8d3634630108054d8a8f4fd45
font_01_sfnt_off0000b955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB955 13648 bytes
SHA-256: 6fb8f3d08120d22bdf944fc3948b00a60c5250446f23c55df7290b22e8f877eb

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