Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7240f2fe20aab9…

MALICIOUS

PDF

44.0 KB Created: 2020-08-31 11:51:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e2580f855705cfb33c698085086c0855 SHA-1: 9334032de87902dfd0007d23042f8b50accd3dd6 SHA-256: ea7240f2fe20aab942378b4e236a49865fc263c8c9a207f7a7ab2192d9b9a23d
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.ru', which is flagged as malicious. Additionally, it features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The presence of a 'download button' lure further supports a social engineering attack aimed at redirecting users to malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=%2525C5%25259Fafak+hesaplama+excel
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/86672226367.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4396/files/riritur.pdf
    • https://cdn.shopify.com/s/files/1/0431/6663/0050/files/ajaya_rise_of_kali_epub.pdf
    • https://cdn.shopify.com/s/files/1/0436/5582/3525/files/wisuwixerezedokafe.pdf
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/38277846702.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7796/files/67426652614.pdf
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/2005_honda_accord_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/vesamamexobin.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/76521503658.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/kufetokidowukodejupof.pdf
    • https://static.usrfiles.com/ugd/6350c7_162c9987d96642a98e538b70829b7505.pdf
    • https://static.usrfiles.com/ugd/b8c837_2eb17ebcb54d4dd4b98a7b1c9242065a.pdf
    • https://static.usrfiles.com/ugd/b8c837_b89788869c5943fcbffa2295ffcc492d.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4823/files/british_airways_flight_timetable.pdf
    • https://cdn.shopify.com/s/files/1/0431/6302/5559/files/wd_backup_software.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_off0000638d.bin
3e5cf7dc020794a6663625c61af7b15cfdca62723f9273dff415f932d46b5b3a
pdf-font-stream PDF embedded font (sfnt) at offset 0x638D 5464 bytes
font_01_sfnt_off00007604.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7604 1800 bytes
font_02_sfnt_off00007e92.bin
e8c9e161a5a843c968801ea69df6f41c50bf7f5bdd090853aa4f1adfc4939aa1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E92 10252 bytes