Malicious PDF — malware analysis report

Static analysis result for SHA-256 a28092cf39f0888d…

MALICIOUS

PDF

51.1 KB Created: 2020-08-09 23:15:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c16abe01cdbae2876cceba0da1368308 SHA-1: cb6e1505f48f7144676ad120911154cb0435ba74 SHA-256: a28092cf39f0888d0a2901825875874b4783335f9b66000797f97a4b5a1ddb54
140 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Cracker Barrel breakfast menu prices' and embeds numerous links, including a critical link to a known malicious redirector at `https://ttraff.com/pify?keyword=cracker+barrel+breakfast+menu+prices+pdf`. The presence of a mass external PDF link farm and a callback phishing lure suggests the document is designed to direct users to malicious sites or engage them in a scam. No scripts were extracted from this sample.

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.com/pify?keyword=cracker+barrel+breakfast+menu+prices+pdf
    • http://files.centerforexperimentalethnography.org/uploads/1/3/0/8/130874329/zezoguzuwaxerokena.pdf
    • http://files.buffalozen.org/uploads/1/3/1/3/131382243/zubevuxoka.pdf
    • http://files.finksdeli.org/uploads/1/3/2/7/132741222/5b0259.pdf
    • https://cdn.shopify.com/s/files/1/0429/8126/1466/files/openssl_sign_certificate_with_ca.pdf
    • https://cdn.shopify.com/s/files/1/0431/7023/4527/files/nuwawexonaxalab.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/80221351132.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7108/files/kiwut.pdf
    • https://cdn.shopify.com/s/files/1/0438/8729/6680/files/python_append_csv.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/bejifiwevebilofupubixu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8797/0975/files/javascript_filter_array_multiple_values.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/86086095570.pdf
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/madonujiwumafakod.pdf
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/64th_bpsc_mains_question_paper_download.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_off00007bd2.bin
b8053e944b151862922f25513eaac474cc97207cdeac7e836070198081cc1ab7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD2 5412 bytes
font_01_sfnt_off00008e1b.bin
a0658b4b43ebe2e172a1636b21ee4c9b813653d6adc97f0555176413047fda75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E1B 15880 bytes

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