Malicious PDF — malware analysis report

Static analysis result for SHA-256 33bd9487ceec9568…

MALICIOUS

PDF

34.6 KB Created: 2020-08-07 08:07:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d877bee2716ebb905278c5967f52ec0 SHA-1: cae30d100287f09a1f5383145b7645d552a73933 SHA-256: 33bd9487ceec9568e8e726ea8b968cec91d810508c504e9a619a3972bd14ea2d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=roman+art+and+architecture+mortimer+wheeler+pdf'. This indicates the document's primary purpose is to lure the user to this malicious URL. The PDF also contains a large number of external links, many hosted on shopify.com, which is flagged as a link farm. The embedded URLs suggest a social engineering tactic to trick users into downloading further malicious content.

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=roman+art+and+architecture+mortimer+wheeler+pdf
    • http://gafoz.emperrial.com/uploads/1/3/2/7/132712358/zosapu.pdf
    • http://files.missmissionminded.com/uploads/1/3/1/4/131438018/40c27a8381.pdf
    • http://files.camdentonpawn.com/uploads/1/3/0/8/130813526/4045864.pdf
    • http://files.michaelmorrisnz.com/uploads/1/3/0/9/130968984/25547255bd.pdf
    • http://files.according2genesis.org/uploads/1/3/2/6/132695258/2225392.pdf
    • https://cdn.shopify.com/s/files/1/0429/7339/7145/files/64157293831.pdf
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/35062338101.pdf
    • https://cdn.shopify.com/s/files/1/0435/9671/0047/files/roman_art_and_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/4966651679.pdf
    • https://cdn.shopify.com/s/files/1/0437/6231/9521/files/hackintosh_high_sierra.pdf
    • https://cdn.shopify.com/s/files/1/0431/6974/2999/files/wesatakeribajezakaxa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4708/3429/files/bixerokogewanuzobalov.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/84441936923.pdf
    • https://cdn.shopify.com/s/files/1/0436/9380/1625/files/24984083842.pdf
    • https://cdn.shopify.com/s/files/1/0429/2381/9175/files/69378306697.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_off000048c7.bin
708ac46439e0dccd0a01a9d2a699b2612416c0310c13ed79659e1ffa83c2ac80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48C7 5316 bytes
font_01_sfnt_off00005ac8.bin
9dafb2cb202910fc89d9150729c46f1e1acb90f0dbbc99a521cb70d0e5965b4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC8 10168 bytes

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