Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e365a09436e7d08…

MALICIOUS

PDF

58.7 KB Created: 2020-08-22 14:06:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df0fc28ee423abf30946d81d1fef3ed2 SHA-1: 70930d430fc8b7c957bcfdc19d19382e4950bd07 SHA-256: 6e365a09436e7d08e43dea73b5d4fa8e1afba2e3a21be3818365bbdf17f002ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for song downloads, directing users to the malicious URL. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic to distribute malicious content.

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.com/pify?keyword=arijit+singh+sad+song+2019 In PDF document text
    • http://files.xchaintechnology.com/uploads/1/3/1/0/131070402/vixobojumanulaj_judonufudef_jusipifulapu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4679/5424/files/derirutenojidupose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/tusabepatadudojapasuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/8895663945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6475/4325/files/39165274251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/12140921115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6385/2712/files/28392183374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/kawivefabojisaxosame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2164/6498/files/57179503055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/19577812474.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006835.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6835 5600 bytes
SHA-256: f43be54b76894ae9051705ca92809952fbfb14d9867b2e88c0ebb27f5cba8187
font_01_sfnt_off00007b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2A 2200 bytes
SHA-256: 7f9d240badee839b1f3ddfa1755007e046857b083d5881801628d5f766eec120
font_02_sfnt_off0000856e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856E 13568 bytes
SHA-256: 9aad77d4dc7c13d537210df2b80a3129ee0ebcd13157f7ad8789ebbaaeeb2eb4
font_03_sfnt_off0000b026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB026 16168 bytes
SHA-256: e5458d7b6d82539349b17fc4713a17e1381d471255c72d9f8116b7c86e08c443
font_04_sfnt_off0000c567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC567 6664 bytes
SHA-256: 1790911131471a32474ea5fa53b26b8e274101af6c3b03a9c1d13f84638d8d2f

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