Malicious PDF — malware analysis report

Static analysis result for SHA-256 28c791aead860dba…

MALICIOUS

PDF

37.0 KB Created: 2020-08-04 08:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 502b3bab9ab211f2a9275f14bf66b266 SHA-1: ea7493b0cc4e37c6c805943099d578f0d6ac1c65 SHA-256: 28c791aead860dba863bfacdc8f3d592a21125ca55a3810b7b7b7e131053d936
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=pc+me+pdf+file+kaise+banaye'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains the same keyword as the redirector URL, suggesting a lure to a fake or malicious page. No scripts were extracted, but the primary attack vector appears to be the embedded malicious 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=pc+me+pdf+file+kaise+banaye In PDF document text
    • http://files.lazyacrescampground.net/uploads/1/3/0/8/130874370/73da8e5aec.pdfIn PDF document text
    • http://files.lindavanderheyden.com/uploads/1/3/0/7/130775665/wetijulim.pdfIn PDF document text
    • http://files.synodnw.org/uploads/1/3/2/6/132681513/gidaliwarajo.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/1/0433/6241/8846/files/31157283061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/chuyn_i_sang_word_hnh_nh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/76434254442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/zegomadet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1284/0872/files/35603409415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4230/7239/files/mudiralijas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2512/1959/files/git_add_all_new_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/kulara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5117/1478/files/42576547376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/bubufujefadapemudarilef.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 6

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_off00005305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5305 5512 bytes
SHA-256: 274ddc81d4fdc7984ceff15291379159769c7883a124602ba162f7764c6e9e4e
font_01_sfnt_off000065b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B9 9820 bytes
SHA-256: 4f12fadbfe95a7f1b92c6624fc4f90753eac9db58688f090c71a1f50a660d3c2

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