Malicious PDF — malware analysis report

Static analysis result for SHA-256 40bf72b8f199da34…

MALICIOUS

PDF

60.3 KB Created: 2020-08-08 21:35:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8259bef17dc42a17e525f1973d6e1ce8 SHA-1: bf466d59372ebb94406f9450d6fbb8ba459f48d2 SHA-256: 40bf72b8f199da344ff9b60ff332204d4256fc1f52e9b83bf39ecce0ca262095
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, includes the same URL, suggesting an attempt to trick the user into clicking it. The presence of a large number of external PDF links also indicates a link farm strategy, likely for SEO poisoning or to obscure the malicious redirector.

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.cc/pify?keyword=askep+asidosis+respiratorik+pdf
    • http://files.myacousticlife.com/uploads/1/3/2/6/132682051/zoriviwikifidedix.pdf
    • http://files.bcrenergygroup.org/uploads/1/3/2/6/132682039/ded06b.pdf
    • http://files.leighkotsilidisart.com/uploads/1/3/0/8/130874067/6197307.pdf
    • http://files.gwenillwyd.com/uploads/1/3/1/4/131437056/wegosiwogem_kiresepef_gukugut_tunevutire.pdf
    • http://files.oleanbarbershopchorus.org/uploads/1/3/1/0/131071312/4c4cdd54e56b4.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/xepobofoz.pdf
    • https://cdn.shopify.com/s/files/1/0443/8881/0918/files/digi_key_paypal.pdf
    • https://cdn.shopify.com/s/files/1/0437/5799/4138/files/98173335223.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0111/files/baltasar_ile_blimunda.pdf
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/tugeliranegubagegobig.pdf
    • https://cdn.shopify.com/s/files/1/0429/9482/7415/files/kexukumamudegi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/zuvajix.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/zefolozesibogufatipop.pdf
    • https://cdn.shopify.com/s/files/1/0431/0423/9770/files/59748351490.pdf
    • https://cdn.shopify.com/s/files/1/0429/7709/9939/files/49100991357.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32823332632.pdf
    • https://cdn.shopify.com/s/files/1/0429/3951/5039/files/sipoteturijisudugeku.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_off0000a721.bin
91175ee1ca405149a74dfc464601d9871dded7d10fa31a9d59df609512f6a8a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA721 5056 bytes
font_01_sfnt_off0000b867.bin
346a4f2c62f2cc2ffef152af3c1c40ebe67cce3f473f8c9d8f35aa9950de90ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB867 13980 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.