Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d24460d276767ac…

MALICIOUS

PDF

42.2 KB Created: 2020-08-08 06:27:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4eacf2bd6c50219e528d51af09d40bdd SHA-1: 52aea1c36495cdac20514c2bd05f274a80339e48 SHA-256: 3d24460d276767ac6d06ba0de894f357ab2f5f087975998ef178a87e76a125a2
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body and embedded links suggest a tactic of SEO poisoning, using seemingly relevant keywords to attract victims. The primary malicious link identified is https://ttraff.ru/wb?keyword=livre%20physique%20des%20plasmas%20pdf, which likely leads to further malicious content or exploits.

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/wb?keyword=livre%20physique%20des%20plasmas%20pdf
    • http://files.ver.enermotech.com/uploads/1/3/2/6/132682647/bc1f95887a45.pdf
    • http://pojojo.acumuseum.org/uploads/1/3/1/3/131384169/nolisojab_soladibogir_magozilugijaxat_jepug.pdf
    • http://files.alysongroll.com/uploads/1/3/1/3/131380107/fuginiwezomi_rononufivibemi.pdf
    • http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.pdf
    • http://files.kirstenangerbauer.com/uploads/1/3/1/3/131380279/suvizo-bomafumeba-lokinidopididux-lalawevoguga.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/giwugize.pdf
    • https://cdn.shopify.com/s/files/1/0431/2668/5850/files/basic_financial_accounting_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/3750686780.pdf
    • https://cdn.shopify.com/s/files/1/0430/9775/1709/files/carding_machine_electrical_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38684703775.pdf
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/kejuxibogumetipis.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/35869639581.pdf
    • https://cdn.shopify.com/s/files/1/0435/7344/4767/files/ridabububimogenuxo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5294/0968/files/bozokabimowamiwepobusenir.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/29051175069.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52733892229.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_off00006287.bin
ae3e3849949b5df45d2b8a3ff9ee5086e6acdd822b25f8f24e3528ab9ad0199c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6287 5512 bytes
font_01_sfnt_off0000752c.bin
9b0c87850bd2e2f3b5e253a4ca7bc234eb57cda0f9be71347d3e1b2ce22c7a72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x752C 11780 bytes

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