Malicious PDF — malware analysis report

Static analysis result for SHA-256 f40220180476353b…

MALICIOUS

PDF

50.6 KB Created: 2020-08-02 13:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 922460a8c9ddc628226fa284ab6d5c02 SHA-1: f6dc3d27bdbd55bd8d002119f146211b04dd58cd SHA-256: f40220180476353bbb144e35980b025a8b77d78187b8e3c2f325bf766b012c94
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.cc/pify?keyword=top+500+albums+of+all+time+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The presence of a large number of external PDF links also suggests a link farm or SEO manipulation tactic. No scripts were extracted from this sample.

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=top+500+albums+of+all+time+pdf
    • http://files.mindgardens.net/uploads/1/3/2/7/132740241/firewomi_rekiv_mufomuki.pdf
    • http://files.madelize.com/uploads/1/3/1/4/131438056/mupubexe.pdf
    • http://files.waitaraponyclub.com/uploads/1/3/1/4/131437093/wusurize.pdf
    • http://files.cindymonten.com/uploads/1/3/1/4/131409693/reruzipugomi-vasemodaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/75713398414.pdf
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/lilekepesojokiladipu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/85159313995.pdf
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/yamaha_maxim_650.pdf
    • https://cdn.shopify.com/s/files/1/0427/3097/9495/files/xodibujeravesud.pdf
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/muderunifakifurupinade.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/1386202600.pdf
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/memudezijewilono.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdf
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/mejekubejowexazusuguwoli.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_off00008882.bin
ba65c765bfa2f54407c3a0ab3eb3f385277c5e2e7c255c42182d6e0b30520269		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8882 5448 bytes
font_01_sfnt_off00009af7.bin
5ae9276c94fe2baa0e482c282ddc259c99f600996ed7d0f54a4eee9a1ca356d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF7 10016 bytes

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