Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ff6c766a9d4fed…

MALICIOUS

PDF

44.5 KB Created: 2020-08-18 22:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b74220e6a23549fa529f52cac85fa1af SHA-1: 07a4ee158eaccb3fbf9aea7dabdd6417d38aace2 SHA-256: e3ff6c766a9d4fed3090007708dc9f5ec4572552712d3b498a56431d7219c0fa
150 Risk Score

Malware Insights

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

The PDF contains a link farm with 24 external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=apa+bibliography+page+format'. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware delivery. The ML classifier also strongly indicated maliciousness.

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=apa+bibliography+page+format
    • http://files.aidankeaneart.com/uploads/1/3/1/0/131070674/xotefobasejoxas_kowedexil_zagutanek.pdf
    • http://tijowo.pdxprays.com/uploads/1/3/1/0/131070993/9ddae7dbed382b8.pdf
    • http://files.bluazul.com/uploads/1/3/0/9/130969999/lixevu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6202/files/95123516935.pdf
    • https://cdn.shopify.com/s/files/1/0448/1299/2674/files/apollo_munich_mediclaim_premium_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/7874/6261/files/bevub.pdf
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/31800143077.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/kumivorebixev.pdf
    • https://cdn.shopify.com/s/files/1/0434/2897/0647/files/13659944049.pdf
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/assertiveness_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0432/6277/1358/files/davinuxinuwawulatow.pdf
    • https://cdn.shopify.com/s/files/1/0431/3861/3415/files/97017838361.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006419.bin
4e3b31a92c2218aba679ea5c8b250d528ede3f5916704f50401d0a1fd36bace2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6419 5048 bytes
font_01_sfnt_off00007549.bin
f9ba89038bfc9ae89a35369fc9665ffe0314fe345efba57e7ca59bb6188dd304		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7549 9932 bytes
font_02_sfnt_off0000974d.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x974D 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.