Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcac19ed81933ca7…

MALICIOUS

PDF

45.0 KB Created: 2020-09-16 22:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af56a1d443ac676eb85010cc49a86fdd SHA-1: 2b7e98dc0834b6b34ad199cfd14c57d2f31bdd81 SHA-256: dcac19ed81933ca7be68de9215185c9fbf7e44cdf2be64a695cf643d8a8ee784
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a lure for a 'Chipotle reward code' and embeds numerous links, including a critical redirector link to 'ttraff.me'. The heuristics indicate the document is a malicious redirector and a link farm, designed to trick users into clicking external links. Additionally, it employs social engineering lures for browser extension installation and callback phishing, suggesting a multi-stage attack. The primary intent appears to be directing users to malicious infrastructure for further exploitation.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.me/wix?keyword=chipotle+reward+code
    • https://9ffb31c1-682a-48f
    • https://cdn.shopify.com/s/files/1/0481/9671/4650/files/kobefofosotalibasug.pdf
    • https://cdn.shopify.com/s/files/1/0449/7879/8750/files/worajadakizaforabanavom.pdf
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/fofowegotajajukikom.pdf
    • https://cdn.shopify.com/s/files/1/0482/2129/0650/files/die_hard_battery_charger_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/dymo_labelwriter_450_troubleshooting.pdf
    • https://e07e21cc-a202-4e4c-9020-f7b3c513dee8.filesusr.com/ugd/97634b_3a00c2ceb4f945a0bf6989ec7aa25b73.pdf?index=true
    • https://9ffb31c1-682a-48f5-b51b-c57ab2078561.filesusr.com/ugd/ad2ade_4d8cad1bbee149aabb611e34ef1fe613.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0438/8893/5067/files/nejuxogelegagi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0505/1029/files/pranayama_breathing_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0431/1869/0458/files/39992258132.pdf
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/84526288535.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_off00006466.bin
fa128ca09d39a72d83054e34350d24d94f772739d266a8dd41195b0c01d299ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x6466 4780 bytes
font_01_sfnt_off000074c7.bin
aef7677fd04982c352e3f4df147f2503608b04b4e90b67e7d1ef2945f3148581
pdf-font-stream PDF embedded font (sfnt) at offset 0x74C7 10724 bytes
font_02_sfnt_off00009920.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9920 4324 bytes