Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a06592cf61d754…

MALICIOUS

PDF

35.3 KB Created: 2020-08-14 05:47:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b1308c7deccc9ccf3ffc341b044865f SHA-1: d7080dbd83e954adfa02805fd09bd542b4c4a02b SHA-256: 22a06592cf61d754faf6195180a1fcc0fc76d46e331dfaf33f5b850ec48a6bb6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=jurassic+park+theme+flute+sheet'. This URL is presented within the document body as a lure related to 'Jurassic park theme flute sheet'. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm or SEO abuse tactic. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=jurassic+park+theme+flute+sheet
    • http://files.createfairtrade.com/uploads/1/3/0/8/130874031/3625116.pdf
    • http://nozafekak.ethsjapanese.org/uploads/1/3/1/4/131454065/5091677.pdf
    • http://files.oikstrategy.com/uploads/1/3/1/4/131438111/finibulexapi-jakumumilavaz-mivimisila.pdf
    • https://cdn.shopify.com/s/files/1/0439/4339/5483/files/juxegomefavolur.pdf
    • https://cdn.shopify.com/s/files/1/0435/9254/8511/files/tamose.pdf
    • https://cdn.shopify.com/s/files/1/0431/8094/9658/files/sirutojamewugoxazukumadeg.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9674/files/les_centrales_thermiques.pdf
    • https://cdn.shopify.com/s/files/1/0437/8217/6917/files/cardiopulmonary_resuscitation_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/potaditajafutopo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/14275240437.pdf
    • https://cdn.shopify.com/s/files/1/0440/8147/9832/files/sumovimogo.pdf
    • https://cdn.shopify.com/s/files/1/0439/0676/0856/files/sunutodadidajogu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7485095273.pdf
    • https://cdn.shopify.com/s/files/1/0439/1161/0536/files/95744873210.pdf
    • https://cdn.shopify.com/s/files/1/0428/9468/8419/files/84768835672.pdf
    • https://cdn.shopify.com/s/files/1/0430/9922/6265/files/carbohydrates_full_chapter.pdf
    • https://cdn.shopify.com/s/files/1/0436/9452/2518/files/bewokazizolom.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_off00004b84.bin
92c996c8e5695a60bbc4cc4860de49818eacaba9bac0eb40ebfc65f979560c94
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B84 5308 bytes
font_01_sfnt_off00005d70.bin
010325679de49f555a585858dfb4e99d5fbe0f75cd0653e5cd89a6560055a827
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D70 10136 bytes