Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ca91c157b61fcf…

MALICIOUS

PDF

81.1 KB Created: 2020-08-22 04:31:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 553ba8f08a405922c627bd1b06872dbe SHA-1: 7d5c4920120e5ebc18587205bdb5028b76d6c683 SHA-256: 75ca91c157b61fcfa9896bcc67416ee48d4c85143dd0795e8ee95aa3dea2db18
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=expendables+2+movie++in+tamil'. This URL is presented within the document body, suggesting a social engineering lure related to a movie to entice users to click. The file also exhibits characteristics of a link farm, with numerous external PDF links, indicating a potential attempt to manipulate search engine results or distribute further malicious content. 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.ru/pify?keyword=expendables+2+movie++in+tamil
    • http://lawixafo.ikhlastours.co.nz/uploads/1/3/2/3/132303093/9422080.pdf
    • http://files.animasriverdays.com/uploads/1/3/1/1/131163872/5788861.pdf
    • http://files.mesivtafootball.com/uploads/1/3/1/1/131163613/7297191.pdf
    • http://files.caralarmandradio.com/uploads/1/3/2/8/132814977/8ca24203b89382.pdf
    • http://vetom.missspic.com/uploads/1/3/1/8/131856725/zuxez.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/16479736856.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/google_sheets_query_function.pdf
    • https://cdn.shopify.com/s/files/1/0435/0862/9659/files/vofoj.pdf
    • https://cdn.shopify.com/s/files/1/0454/2601/6424/files/tanivaxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/4335/6821/files/95846032189.pdf
    • https://cdn.shopify.com/s/files/1/0429/2735/8115/files/gift_certificate_template_nz.pdf
    • https://cdn.shopify.com/s/files/1/0451/7868/3541/files/deductive_reasoning_puzzles.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0957/files/59274467944.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0876/files/windows_7_generic_key.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/35175676528.pdf
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/85594158137.pdf
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/62175380777.pdf
    • https://cdn.shopify.com/s/files/1/0432/7289/6678/files/xosavadewafeli.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/93001837065.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_off0000febc.bin
30f68753ab3c445c8c07128d6ff329df66f0a272e5374048ef925ba99d214c15
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBC 5368 bytes
font_01_sfnt_off000110f0.bin
af226e098e79275c6929db9e418bc5f7fad5dffe0d966eb0e4cf7c7b0fbf03f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x110F0 11680 bytes