Malicious PDF — malware analysis report

Static analysis result for SHA-256 2abf97d58f0cd0ae…

MALICIOUS

PDF

54.8 KB Created: 2020-08-10 16:54:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f1135b238bca2a40af52b0d14a4e905 SHA-1: be8989a1528c6d2659301c28590cf0ee3b3891f5 SHA-256: 2abf97d58f0cd0ae80fff64e789b0454de96d5ee395f609e03a6251a5cba411b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=unsafe+abortion+the+preventable+pandemic+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0433/8027/7406/files/sample_nonprofit_business_plan.pdf'. The document body, though heavily obfuscated, contains fragments that suggest a lure related to a pandemic and abortion, likely to entice clicks on the malicious link.

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.ru/pify?keyword=unsafe+abortion+the+preventable+pandemic+pdf
    • http://files.westsideyouthministry.org/uploads/1/3/1/1/131164081/3d9190fd.pdf
    • http://files.birgitbaader.com/uploads/1/3/0/8/130874338/99ff59.pdf
    • http://files.lairginitiative.co.uk/uploads/1/3/0/9/130968950/wemupe.pdf
    • http://rowodo.thejwbench.com/uploads/1/3/0/7/130738970/7445717.pdf
    • http://files.kitchenideascookshop.co.uk/uploads/1/3/1/1/131164542/13160a5.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/sample_nonprofit_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6457/files/vumenafukavi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7180/7392/files/fire_red_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0437/4652/5338/files/sagugumuwamilimu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vunususojorimit.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/pufipufefogamukozazedejix.pdf
    • https://cdn.shopify.com/s/files/1/0428/2223/8374/files/80034354288.pdf
    • https://cdn.shopify.com/s/files/1/0436/8770/6777/files/ecological_pyramid_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/bugojiwazusuzodexexo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8074/4089/files/lekexajugolozononoxojaw.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_off000097b8.bin
d16033861d543ba06d88ef4f1f7c459e38a995b5ef3ddc75cc30950259628ae6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97B8 5588 bytes
font_01_sfnt_off0000aa8a.bin
3af3b914866d3ebb33179ed253abb89c2f7e11b7a9568965c570932b867dcda4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA8A 10404 bytes

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