Malicious PDF — malware analysis report

Static analysis result for SHA-256 229f0e82867fac78…

MALICIOUS

PDF

55.2 KB Created: 2020-08-14 22:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74d016fd417c9babd9728cb0f859b047 SHA-1: 3db13715907fea543d296be0e063718920a770b7 SHA-256: 229f0e82867fac78533d078a5bf89e6da95f73e45f27281e3e7211642b8e665a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/wb?keyword=sound%20attenuator%20catalogue%20pdf'. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or to download further malware. The document body, though heavily corrupted, contains text related to a catalogue and the tool used to generate the PDF, further supporting the lure.

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/wb?keyword=sound%20attenuator%20catalogue%20pdf
    • http://files.liviaanneautomotive.com/uploads/1/3/1/4/131483492/6051408.pdf
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/9279045022.pdf
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/favozigonafimet.pdf
    • https://cdn.shopify.com/s/files/1/0437/1624/7703/files/61397811691.pdf
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/94088563316.pdf
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/rebemonopa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/27691610646.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3462/files/80405049608.pdf
    • https://cdn.shopify.com/s/files/1/0435/6620/3029/files/best_lady_fist_prefix.pdf
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/nakuduxesolev.pdf
    • https://cdn.shopify.com/s/files/1/0447/7750/4925/files/aha_acls_provider_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/tujajixeserepikalelofis.pdf
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/bizewapidajivipa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8022/8759/files/advanced_engineering_mathematics_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2418/files/zimedatikokivafegarotefa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/auxinas_en_plantas.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_off00009b38.bin
048a0d6e8e68b7d5ce61abe9c6529789c56dd215974342f015de4aca8d58bade		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B38 5248 bytes
font_01_sfnt_off0000ad1a.bin
409bdd897ed2499e8b39cbe37f6f924bc330fab24f26573c3f0aa889bd6faec2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD1A 10144 bytes

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