Malicious PDF — malware analysis report

Static analysis result for SHA-256 079adc9f2f60223f…

MALICIOUS

PDF

33.2 KB Created: 2020-08-26 14:53:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0eec8135680d05977681af089501cf19 SHA-1: eb889f2a8c03fcf1a55e58afc2684e28626115f9 SHA-256: 079adc9f2f60223f557d2dbb603c20e455426e0adb7ed74770b41279c7ef0306
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains this URL and appears to be a lure related to 'Pokemon go weakness chart reddit'. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic to distribute the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.com/pify?keyword=pokemon+go+weakness+chart+reddit
    • http://files.brushandbranch.co/uploads/1/3/0/7/130740344/2297158.pdf
    • http://files.frederickcitybaberuth.com/uploads/1/3/1/6/131637584/katoxamusowimof.pdf
    • http://xafememuj.realdisciple.org/uploads/1/3/1/6/131636612/6c1bea952.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdf
    • https://cdn.shopify.com/s/files/1/0435/4041/4615/files/fojezudunezebima.pdf
    • https://cdn.shopify.com/s/files/1/0438/3024/7584/files/correlative_conjunction_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0429/2725/9815/files/pesunorewixobinejawidakuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5199/files/wuzubo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3591/7464/files/xixati.pdf
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/44261154434.pdf
    • https://cdn.shopify.com/s/files/1/0428/6903/1078/files/ledapazupuwawatosil.pdf
    • https://cdn.shopify.com/s/files/1/0434/5017/1554/files/top_reader_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0457/7922/2694/files/nadra_b_form_registration_requirements.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000449b.bin
360d7d843d6cd52bf6ec636ba0d002a33272ea619068896c073b85bba7a7e160
pdf-font-stream PDF embedded font (sfnt) at offset 0x449B 5480 bytes
font_01_sfnt_off0000571d.bin
4d0de131477ff821181995b03b0d64b3f5b00f2e06c5525bf2fe6c8569f3451b
pdf-font-stream PDF embedded font (sfnt) at offset 0x571D 9696 bytes