Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf5dc9fc377ad481…

MALICIOUS

PDF

51.3 KB Created: 2020-08-12 00:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45f9dbf8aa78557db7b05e56e17176c6 SHA-1: 2d6a320e88f669d2c75d553f8e353321dbbd83a5 SHA-256: cf5dc9fc377ad481894e9d66f88465457ba267c2b814f1c50dafa0d5bd9c6e31
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains numerous embedded links, including one that redirects to a known malicious infrastructure at 'ttraff.cc'. The heuristic 'SE_REMOTE_SUPPORT_LURE' suggests the document's content is designed to trick users into interacting with it, likely by prompting them to download or connect to a remote support tool. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.cc/pify?keyword=bsnl+offers+karnataka+pdf In PDF document text
    • http://files.misslorenz.com/uploads/1/3/1/4/131483254/febaraf.pdfIn PDF document text
    • http://files.graceunitedportdover.org/uploads/1/3/1/8/131871614/zepaxofugagipuzarut.pdfIn PDF document text
    • http://files.fisherlawcorp.com/uploads/1/3/1/4/131437017/6079065.pdfIn PDF document text
    • http://nikis.stpaulautomation.net/uploads/1/3/0/7/130776407/97e7b2f8989.pdfIn PDF document text
    • http://files.maybellbareket.com/uploads/1/3/1/3/131380485/puvisepegirugon-linugix.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/1/0433/0556/6366/files/70530808295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8076/0990/files/allan_kardec_espiritismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4673/9866/files/jeragunewis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2608/7064/files/82740536506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0351/6827/files/87222275781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7453/3014/files/pawilozegixupenusurot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0517/4183/files/xogisomafoxonimukoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2449/6286/files/700r4_rebuild_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0990/8637/files/nirexigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/xilivafotopufozuxuxawote.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_off00008d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D1A 5148 bytes
SHA-256: ed4a692d6d087e162277c12142a6e145ae6cffb16e85408fce281c9bb49d14bc
font_01_sfnt_off00009eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EAA 9772 bytes
SHA-256: fda07f96a6b38211e7ff5bbb84b1538e41adaa4eb1440ede946bc82bc11309db

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