Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8d7e08ba7ced87b…

MALICIOUS

PDF

38.6 KB Created: 2020-08-08 06:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 568ae5effbed21fd9bf2426b4a52e9e0 SHA-1: 6dfe88d82d84aae33c6d23c64de5ce3de6fed437 SHA-256: c8d7e08ba7ced87b90ba643ea1873f370c87d8195850a5756e97dbe63e833940
140 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector. The document body and heuristics suggest a lure related to an 'Australian passport application form', directing users to a malicious URL. The presence of a callback phishing lure further supports a social engineering attack pattern.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=australian+passport+application+form+pdf+download
    • http://files.homemadenourishment.com/uploads/1/3/1/6/131637150/razoz.pdf
    • http://files.gogginslonestarfarms.com/uploads/1/3/0/8/130814601/xiderudokomo.pdf
    • http://files.texascoastalexchange.org/uploads/1/3/2/7/132710748/6d0a519.pdf
    • http://files.pipart.com.au/uploads/1/3/0/8/130814926/kozulobudo.pdf
    • https://cdn.shopify.com/s/files/1/0447/4263/9765/files/hypercalcemia_management.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/81461071174.pdf
    • https://cdn.shopify.com/s/files/1/0432/2269/6098/files/fizafunanevezuxajupaxopat.pdf
    • https://cdn.shopify.com/s/files/1/0438/4355/1392/files/past_simple_past_continuous_exercises_elementary.pdf
    • https://cdn.shopify.com/s/files/1/0428/2214/0070/files/4750319126.pdf
    • https://cdn.shopify.com/s/files/1/0438/3598/1974/files/appelle_moi_par_ton_nom_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0430/4306/1913/files/zosukesexajudolelate.pdf
    • https://cdn.shopify.com/s/files/1/0436/5336/5910/files/91632086828.pdf
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/papadigaworavozamom.pdf
    • https://cdn.shopify.com/s/files/1/0433/5199/8623/files/93501721621.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005811.bin
397c95a76e092b6956a8ea19fdbe3d4469c9f0cb5fa431de8dfe01c56635f977		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5811 5384 bytes
font_01_sfnt_off00006a5d.bin
48aed8c5f56598c385b6204bfb85d69b4827b8e542b5627a717159a2e2b226c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A5D 10308 bytes

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