Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3ce323ad665386d…

MALICIOUS

PDF

50.3 KB Created: 2020-08-12 17:34:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cc6561f77b0d6b780d9e87edbe47c25 SHA-1: 9a114378576a87a0169c89c201728e7f98e6e8f4 SHA-256: a3ce323ad665386d1651ee45774352b8b97c7886bedd456cda4c5a1add75b1e0
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL identified as https://ttraff.com/pify?keyword=islamic+criminal+justice+system+pdf. This indicates a phishing or social engineering attempt to redirect the user to malicious infrastructure. The document body itself is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf.

Heuristics 3

  • 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.
  • 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=islamic+criminal+justice+system+pdf
    • http://jedajil.gourdsamore.com/uploads/1/3/0/9/130968996/ruzopiboxeb.pdf
    • http://files.artandsoulholton.com/uploads/1/3/0/8/130874325/ranak.pdf
    • http://tunubava.fitnessforyou.co/uploads/1/3/1/0/131070487/rujujajosulore.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/47351046183.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/nufike.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/80274372688.pdf
    • https://cdn.shopify.com/s/files/1/0428/7945/1289/files/puvigelunat.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/dabibesiwetekosa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1017/0786/files/bokixutemafavodikumisob.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/zixozesoliwama.pdf
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/30749212856.pdf
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/jafezirupiwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/41014328295.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a2f5.bin
b973c6454f092bfa1f1b275c93caceb6801bb5cdfa6a577f32628dc629adcceb		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA2F5 17184 bytes
font_00_sfnt_off00006a49.bin
d686074478d0c2d2773cbf5494f9f09c5822fce5e3b2a0afd255fddd6edd63ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A49 5416 bytes
font_01_sfnt_off00007c9e.bin
1ebe6df671b2be3c04e03373087d1f7b79e75b8df40289d49ec2f599aa3ba816		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9E 11980 bytes

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