Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce3ed302697db58c…

MALICIOUS

PDF

47.4 KB Created: 2020-08-06 21:12:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c7f1668b6424da283da7af862d1b884 SHA-1: 8e89361d4a548f913b5550c427a77fd0ebc51547 SHA-256: ce3ed302697db58cab1b8357da1150a2e0b3877827fcaa5969aee271c1769636
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector URL. The primary malicious URL identified is https://ttraff.ru/pify?keyword=javascript+tutorial+pdf+full, which is known to lead to malicious infrastructure. The document body, though heavily obfuscated, contains references to 'javascript tutorial pdf full', suggesting a lure to entice users to click the malicious links. The presence of a link farm and a malicious redirector indicates a phishing or social engineering attempt to lead the user to a harmful 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=javascript+tutorial+pdf+full
    • http://kokoki.kateritmcknight.net/uploads/1/3/1/1/131164243/likeju-koxij-pokazinojozeluv-lidovixegag.pdf
    • http://files.briancurtinbangkok.com/uploads/1/3/2/6/132696414/247632.pdf
    • http://files.inspiredlearningationa.org/uploads/1/3/0/9/130969663/bepiferagi.pdf
    • http://files.msshackelford.com/uploads/1/3/1/4/131453198/b587bedf30.pdf
    • http://files.scottsawa.com/uploads/1/3/1/8/131871740/c211e339a6.pdf
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/cazadora_de_hadas_valiente.pdf
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/lanasemojuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/bexikolagaxolo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2539/9971/files/31553797242.pdf
    • https://cdn.shopify.com/s/files/1/0427/4506/9724/files/cephalohematoma_in_newborn.pdf
    • https://cdn.shopify.com/s/files/1/0434/6383/5814/files/36982131139.pdf
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/kevizaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/8820/7254/files/il_canzoniere_italiano.pdf
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/nebojunolajezogedafozulad.pdf
    • https://cdn.shopify.com/s/files/1/0433/6690/8065/files/livre_pour_apprendre_a_parler_l_anglais.pdf
    • https://cdn.shopify.com/s/files/1/0437/3653/1095/files/az_302_exam_dumps.pdf
    • https://cdn.shopify.com/s/files/1/0438/2107/2541/files/ducane_furnace_manual.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_off00007046.bin
f0da80371d331df30c47fea39f0c662f1590d3aa849918ce01d0e87df3c6642e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7046 5196 bytes
font_01_sfnt_off00008210.bin
5aa4a88b29c14aed180389f79e5bfd7a3fcd14835e672f50d85e69b5ee9e7f1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8210 14648 bytes