Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dfb1eb3bdcd7092…

MALICIOUS

PDF

51.1 KB Created: 2020-08-10 16:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 060571daa536781b27ddbb44aa8c6d39 SHA-1: 40bdd5226a025d21b7eef3e4d6bea6a05f11245e SHA-256: 9dfb1eb3bdcd7092d457182c480978337e5aabd68b60a9b5a3a71a7ce3b3e34d
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=canon+eos+760d+manual+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including benign ones hosted on Shopify. The document also contains a lure to execute commands via the clipboard, suggesting a multi-stage attack. No scripts were extracted, but the combination of a malicious redirector and clipboard command lure indicates a high likelihood of a phishing or malware delivery attempt.

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/pify?keyword=canon+eos+760d+manual+pdf
    • http://files.hopkinton-sepac.org/uploads/1/3/1/8/131856271/138d9e55556ee.pdf
    • http://files.teamworksart.org/uploads/1/3/0/8/130813841/telivutinevamon_pimudo_sobojibamosivi.pdf
    • http://files.handandgear.com/uploads/1/3/1/3/131379406/gajurufafusos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4346/3074/files/62025756065.pdf
    • https://cdn.shopify.com/s/files/1/0434/0088/8469/files/14461263493.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/2315035948.pdf
    • https://cdn.shopify.com/s/files/1/0438/1255/2864/files/lexus_rx_350_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3866/files/45571946976.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0582/files/63361311117.pdf
    • https://cdn.shopify.com/s/files/1/0428/4514/3207/files/51737253579.pdf
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/persona_bergman_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0432/0408/3869/files/93976808338.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/24748986405.pdf
    • https://cdn.shopify.com/s/files/1/0439/4234/6907/files/wuvikatutosuje.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_off00007d85.bin
e2c106ddcfdc8fc930ba50871cafe733b778e0325afe3d844eb573994856f4d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D85 5372 bytes
font_01_sfnt_off00008fbf.bin
eb32361fafc97123be935623760081e0a8563ada96033bdef5dd0a510fe001b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FBF 15648 bytes