Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69eee439c72f824…

MALICIOUS

PDF

44.3 KB Created: 2020-08-01 13:40:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fcbedf713442664361420edf1aeb82a2 SHA-1: 675209d149af94ae79850ada968a57d63670ba3a SHA-256: a69eee439c72f824da92c593eed2658f352e34c0ca2e216e6a2569c6a7cdd296
160 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=minecraft+cops+and+robbers+server, is identified as a malicious redirector. The document body, though heavily corrupted, contains references to 'Minecraft cops and robbers server' and the target URL, suggesting a lure to a malicious site. The presence of a remote-support tool lure heuristic further indicates a social engineering attempt to trick the user into interacting with 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=minecraft+cops+and+robbers+server
    • http://files.alexhancook.com/uploads/1/3/2/6/132680860/vifofati-muxep-sabutuw-digovobud.pdf
    • http://files.gobeyondthepond.com/uploads/1/3/1/6/131606745/31ee9889fae499.pdf
    • http://files.mixedattainmentmaths.com/uploads/1/3/1/6/131606121/80928375a7.pdf
    • http://files.cc-tutors.com/uploads/1/3/1/4/131483110/8937550.pdf
    • https://cdn.shopify.com/s/files/1/0440/8590/3525/files/goduvusinosig.pdf
    • https://cdn.shopify.com/s/files/1/0427/7485/5846/files/dajemenigefo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/letagonimoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/78822061813.pdf
    • https://cdn.shopify.com/s/files/1/0432/5870/8136/files/71609146320.pdf
    • https://cdn.shopify.com/s/files/1/0436/9694/7353/files/36434764374.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/75501468465.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/29966158245.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1386/files/dujisadobix.pdf
    • https://cdn.shopify.com/s/files/1/0428/3550/9415/files/29201985104.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/50219521208.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.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_off00006dd4.bin
4c18b2bfc82deb6d835a7f3dda6c601a59014477dcdeb090d5d39dd94f0caa8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD4 5320 bytes
font_01_sfnt_off00008009.bin
187c8fa7e3af89936cac06bd7b65433f7af252ab1b834feaa2b44f0b3f0e0e0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8009 10580 bytes