Malicious PDF — malware analysis report

Static analysis result for SHA-256 a29908ec798559a3…

MALICIOUS

PDF

54.3 KB Created: 2020-08-19 17:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b74660edd85deeb7ea0ee19359c65a95 SHA-1: 00800ecb00b74caf7b79de2c7058986eeb63eea8 SHA-256: a29908ec798559a383287c476d8ae93681acea220cc9a4253d49f821d1deb878
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body contains numerous URLs, including the primary malicious redirector at 'https://ttraff.ru/pify?keyword=autonomic+security+in+cloud+computing+pdf'. This indicates the PDF's primary function is to lure users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=autonomic+security+in+cloud+computing+pdf
    • http://bimiba.tradingpostpro.com/uploads/1/3/1/6/131606162/lotiwixivu.pdf
    • http://files.manxchainsawcarvings.com/uploads/1/3/1/4/131455475/7017825.pdf
    • http://files.lvcchp.org/uploads/1/3/1/4/131452878/900ebf3f37472.pdf
    • http://nadimete.psychiccindy.com/uploads/1/3/1/3/131383544/5fd641d.pdf
    • https://cdn.shopify.com/s/files/1/0431/9471/2228/files/batewufetiruzuva.pdf
    • https://cdn.shopify.com/s/files/1/0433/7932/7130/files/nazaxonukesiwifo.pdf
    • https://cdn.shopify.com/s/files/1/0438/5311/9648/files/youtube_categories_list.pdf
    • https://cdn.shopify.com/s/files/1/0439/9231/8110/files/savolezazedida.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/65384612515.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/96076503542.pdf
    • https://cdn.shopify.com/s/files/1/0431/0663/1833/files/titabefeguvokajigazepigu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2139/4343/files/bernard_marr_data_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0432/7083/2291/files/12350064105.pdf
    • https://cdn.shopify.com/s/files/1/0432/5693/8664/files/sikuwegexisulexul.pdf
    • https://cdn.shopify.com/s/files/1/0434/8438/1350/files/purorowuzupi.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_off00009372.bin
13944296fec247999d04aa7c17afda733a7d2969b1c20673015be295a9581be3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9372 5356 bytes
font_01_sfnt_off0000a5a2.bin
bd14cff2ea0a8d973e789c86db412c66932daf2e14ed4ac313a3eb9a7240ec7d
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5A2 11176 bytes