Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e600cdf7c53ad22…

MALICIOUS

PDF

71.0 KB Created: 2020-08-19 20:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1921d37b56642233de849eb55810d96 SHA-1: 334a4a57fdeea872f71299a0f3eee6228345f6c8 SHA-256: 7e600cdf7c53ad222a5dcfccf272cb948613e106bacc0a56dfddfa9b28018088
160 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=yandex+music+er+firefox', indicating a likely redirection to malicious content. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's purpose is to trick users into a financial scam.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=yandex+music+er+firefox
    • http://files.tankuanaw.com/uploads/1/3/1/3/131379612/eda4253071.pdf
    • http://tisexa.hiddenvalleymammoth.com/uploads/1/3/2/6/132680955/jakarofaredos.pdf
    • http://lufep.midnightbordercollies.com/uploads/1/3/0/9/130969352/8ea67c6a53a0.pdf
    • http://majuda.ushooker.com/uploads/1/3/2/6/132682052/nabelurigo-letelaganuw-zigetusejon.pdf
    • http://kirekanu.stephaniecpassman.com/uploads/1/3/1/3/131398140/3fc7f78.pdf
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/19808226746.pdf
    • https://cdn.shopify.com/s/files/1/0443/4470/5180/files/pidumu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3769/5895/files/tukebujejaxoxomogizitero.pdf
    • https://cdn.shopify.com/s/files/1/0429/2988/1244/files/16797507178.pdf
    • https://cdn.shopify.com/s/files/1/0431/4916/4705/files/92689561232.pdf
    • https://cdn.shopify.com/s/files/1/0440/5601/9109/files/3506715768.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdf
    • https://cdn.shopify.com/s/files/1/0434/6164/0352/files/air_pollution_and_control_notes_download.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/
    • https://cdn.shopify.com/s/files/1/0432/1142/39

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d531.bin
3cba5914aec7f06edf498a8f5147c26d067eb6b124950b140e930d74ae5e2b34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD531 5164 bytes
font_01_sfnt_off0000e6a2.bin
8814c994a65f4825157c3d0c8996c5e2fa3851d20704f2e81df8abe036c9962b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A2 12612 bytes

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