Malicious PDF — malware analysis report

Static analysis result for SHA-256 000965b72ceed51a…

MALICIOUS

PDF

38.6 KB Created: 2020-08-03 16:30:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba71d6565611f3f5897adec232e2616e SHA-1: ac9bc6246d9dafe74ca8f1d3e8876f52d46ecbf0 SHA-256: 000965b72ceed51aab4f1c86d3b2257a1f0652a503ee57d3faf9724960097545
162 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=dc+circulator+route+map+pdf. This indicates the document is designed to lure users into clicking malicious links, likely leading to further malware downloads or phishing attempts.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=dc+circulator+route+map+pdf
    • http://files.llanorocknriverfest.com/uploads/1/3/1/0/131070859/7086263.pdf
    • http://files.artfulscents.com/uploads/1/3/1/4/131407233/2398173.pdf
    • http://files.palmandbowl.co.uk/uploads/1/3/2/7/132741110/61d0f6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/78898652969.pdf
    • https://cdn.shopify.com/s/files/1/0443/8881/0918/files/kill_bill_soundtrack_2.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/30095345587.pdf
    • https://cdn.shopify.com/s/files/1/0431/9290/9987/files/beethoven_piano_sonata_31.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/kijutevefosoli.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/sajonusezik.pdf
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/28763370304.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/kesitefuvibetebegize.pdf
    • https://cdn.shopify.com/s/files/1/0431/8176/8872/files/93741865441.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/fimuxusivatiwolixiwosi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/69984025115.pdf
    • https://cdn.shopify.com/s/files/1/0432/7889/3214/files/70718249078.pdf
    • https://cdn.shopify.com/s/files/1/0428/4012/9692/files/50942959721.pdf
    • https://cdn.shopify.com/s/files/1/0432/1515/9458/files/78152969127.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057b8.bin
aceb1444fba126f5cf508d3ecf5cee3dcf52c4dfec5f6d32dc53821ecaba24da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57B8 5124 bytes
font_01_sfnt_off00006914.bin
9a84904a19fd2169bdb81d5deaf23a25167ee5b90c1b608c7e3baa06af1a2225		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6914 10736 bytes

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