Malicious PDF — malware analysis report

Static analysis result for SHA-256 20e6f9712d02d8a9…

MALICIOUS

PDF

41.5 KB Created: 2020-08-06 22:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e60cf02cc450ed791c63bb372095edc SHA-1: e343d13e53eae42c506cbe649595f202d1317885 SHA-256: 20e6f9712d02d8a9ee4452bd4567a5b2bb0530c5f10ce06b0d9bbba3ecae5382
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=financial+incentive+definition+pdf', which is a known malicious redirector. This suggests the document's primary purpose is to redirect the user to malicious infrastructure, likely for further payload delivery.

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.cc/pify?keyword=financial+incentive+definition+pdf
    • http://files.helpoverhurdles.com/uploads/1/3/1/8/131856479/2074902.pdf
    • http://files.jvroofingsiding.com/uploads/1/3/0/7/130740231/pujezariwif.pdf
    • http://files.150th.org.uk/uploads/1/3/0/7/130739806/sejobu_vonaj_donobubenaki_ranokenejizowud.pdf
    • http://files.mesabikerace.net/uploads/1/3/1/8/131858044/gafomuxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/nisumidasesusefetit.pdf
    • https://cdn.shopify.com/s/files/1/0432/0490/3069/files/migexozamoxasilunel.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/gupulajopuzugupiwusebum.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/weraloxejizidareler.pdf
    • https://cdn.shopify.com/s/files/1/0435/0682/7429/files/tsc_appraisal_form_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/4437/1613/files/zonanogopamovepuve.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0417/files/buku_bahtsul_masail.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/13788149829.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20659662050.pdf
    • https://cdn.shopify.com/s/files/1/0430/4276/7001/files/19098281578.pdf
    • https://cdn.shopify.com/s/files/1/0437/7133/0709/files/fifty_shades_as_told_by_christian.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_off0000644d.bin
ad6254a83cd79d3beb420682d5acb838ced1f1b595ff6fb5ddba1a0ee060ab0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x644D 4888 bytes
font_01_sfnt_off00007515.bin
fd2580aaddf47518e7bf25e4d3a80812a75e9c27a5511eca993a424990199980		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7515 10652 bytes

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