Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec9924065943ad68…

MALICIOUS

PDF

47.2 KB Created: 2020-08-11 17:34:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 022adf9416dd3596ab3edee8c7c7272c SHA-1: b4da407d12857a9275fbe68109416becff20d10c SHA-256: ec9924065943ad686fbca3267e0cb5a524ad05e8ffb3965b39230026b799d9cd
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=alain+de+benoist+on+being+a+pagan+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to Shopify domains. The ML classifier also strongly flagged this PDF as malicious. The document body contains garbled text but includes the malicious URL, suggesting the document's primary purpose is to trick users into visiting this malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=alain+de+benoist+on+being+a+pagan+pdf
    • http://files.gorgeousgoldendoodlesnc.com/uploads/1/3/1/0/131071067/1143586.pdf
    • http://files.anekaingold.com/uploads/1/3/2/6/132695531/10be3010c.pdf
    • http://files.blueridgelanegermanshepherds.com/uploads/1/3/2/7/132710601/zorulapu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/beginner_s_russian_kudyma.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/84057625668.pdf
    • https://cdn.shopify.com/s/files/1/0437/7319/8497/files/kezonozowuvorobi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9557/2126/files/wusogebesuwup.pdf
    • https://cdn.shopify.com/s/files/1/0432/8564/3420/files/modal_verbs_exercises_advanced.pdf
    • https://cdn.shopify.com/s/files/1/0431/7036/5602/files/bufurewopepimipefi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1021/2519/files/75414109953.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/86970885427.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/cch_chuyn_file_nh_sang_trn_in_thoi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2897/0647/files/pegurupeluvotebimupilakaj.pdf
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/what_is_lovemp3.pdf
    • https://cdn.shopify.com/s/files/1/0437/3191/0810/files/10438767025.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_off0000798b.bin
ba47847b09663bfaa61ba030c16c4a8018c169eb6efd8bb69bfe6763480bd842
pdf-font-stream PDF embedded font (sfnt) at offset 0x798B 5244 bytes
font_01_sfnt_off00008b6e.bin
5da54d18e35f52d7ddd3a427142f85232eea7f7a88f3426e3d7549d9b84bef49
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6E 11396 bytes