Malicious PDF — malware analysis report

Static analysis result for SHA-256 88a286f489426e4d…

MALICIOUS

PDF

101.1 KB Created: 2020-08-02 05:29:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 978fcd3f2129dc5b2cc6e47538c36bb2 SHA-1: 77a7e18178dc6a3f53973e8ec5a49c3f2ac4bb77 SHA-256: 88a286f489426e4dfa9648f47b57a85c64151e61d383a034e422039026e7bc0e
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a redirector link, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to a 'Mirro pressure cooker manual' and a URL that is flagged as a malicious redirector. This suggests the document is designed to trick users into clicking the malicious link under the guise of providing a manual.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=mirro+pressure+cooker+manual
    • http://files.si-ul.com/uploads/1/3/1/3/131379833/3804504.pdf
    • http://files.jennyjohnstonteacher.com/uploads/1/3/0/8/130874110/jepuludena_futowiniteje_benilajipubuvul.pdf
    • http://files.nachomamasbedandsnack.com/uploads/1/3/0/7/130776728/65e86d74f888a.pdf
    • http://files.sharonceslak.com/uploads/1/3/1/4/131483307/xifepamudolebudi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/free_church_bulletin_covers.pdf
    • https://cdn.shopify.com/s/files/1/0433/9659/5861/files/zoxebewalor.pdf
    • https://cdn.shopify.com/s/files/1/0437/5812/5207/files/naxoseziwiwamigizefib.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/73184516711.pdf
    • https://cdn.shopify.com/s/files/1/0430/6891/5863/files/newejulolutef.pdf
    • https://cdn.shopify.com/s/files/1/0432/7987/6252/files/23637203803.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2819/files/22220483252.pdf
    • https://cdn.shopify.com/s/files/1/0427/5548/9948/files/nalivobijalalutoxagaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/23335894072.pdf
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/51886173571.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8665/files/83864435277.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_off00014dc5.bin
f5c4c60701468bd0e457dcb5a02eec6ae7b9ab0b806035c318794a875a167040		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14DC5 5148 bytes
font_01_sfnt_off00015f42.bin
2d96650d7b46c9fadab7979e088f30f479e359fb5ef14b126e11f9b805528965		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F42 12240 bytes

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