Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e6698377e3ceb6…

MALICIOUS

PDF

47.4 KB Created: 2020-08-06 22:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8995bb6c0cb545e84b46185f05214a58 SHA-1: 20e68ab798185f4968af4c89bef73cc0f24d7507 SHA-256: b2e6698377e3ceb65b28ad8a7fe64ba0378c9a6194d52e05474abf5f88b79cb3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic firing indicates a malicious redirector link to 'https://ttraff.ru/pify?keyword=budapest+tourist+guide+pdf', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same URL and references to a 'Budapest tourist guide pdf', reinforcing the lure. The presence of numerous links, including the malicious one, indicates a link farm or redirection strategy to obscure the final malicious destination.

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=budapest+tourist+guide+pdf
    • http://juvara.petitebakery.co.uk/uploads/1/3/1/4/131437987/zukekojukiviluketib.pdf
    • http://files.villinlannen.com/uploads/1/3/2/7/132710628/xabukibaki.pdf
    • http://files.camppepper.com/uploads/1/3/2/3/132302913/1217584.pdf
    • http://ponizud.newukmusicals.co.uk/uploads/1/3/2/3/132302780/bozekigumi_pawor.pdf
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/43734351066.pdf
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/katufipimaxu.pdf
    • https://cdn.shopify.com/s/files/1/0450/3266/9334/files/shutter_speed_chart.pdf
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/zemodozororumazal.pdf
    • https://cdn.shopify.com/s/files/1/0438/1320/8226/files/tunemokimesavowobifuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/zukesajukiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/9191/7989/files/cervicogenic_headache_stretching_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0440/2066/2422/files/john_deere_240.pdf
    • https://cdn.shopify.com/s/files/1/0428/7430/6727/files/porufowopexamawafe.pdf
    • https://cdn.shopify.com/s/files/1/0430/3699/9831/files/ralonopofolezuviwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/95180702464.pdf
    • https://cdn.shopify.com/s/files/1/0440/9432/4888/files/fexalosezakafuxaliwumed.pdf
    • https://cdn.shopify.com/s/files/1/0435/8239/0431/files/85193223350.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_off00007ade.bin
eeca2365e4c0aab9b1f9b415d956ddf0778fa1c215af03db799ae4764585f5fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADE 5224 bytes
font_01_sfnt_off00008cb5.bin
57534dbbddacf4f5a62ecf3acdf7e6220169c71e839174cb2cf05e71e617008c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB5 10412 bytes