Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a7021c706a5704…

MALICIOUS

PDF

38.6 KB Created: 2020-08-28 04:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64c30c56f11e9d7006123098131f1689 SHA-1: 75a8628814d831d82996df932f8807e1aef0ee4f SHA-256: 53a7021c706a57046f12a688260acb0ff018003dcf708559d00d01fb1138ea86
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'Dre beats powerbeats2 wireless' and the malicious redirector URL, suggesting a lure to a phishing or scam page. The presence of a malicious redirector link is the primary indicator of malicious intent.

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=dre+beats+powerbeats2+wireless
    • http://files.hippovalley.org/uploads/1/3/1/1/131163533/6804981.pdf
    • http://files.betterwiththebible.com/uploads/1/3/0/7/130738758/fixatarake.pdf
    • http://files.elyscouture.com/uploads/1/3/2/7/132710676/raronoxabuk_sasunux_xewawovigi_vexafezajeku.pdf
    • http://lafixibo.lifehealthstrength.org/uploads/1/3/1/6/131606289/rumilogokanedu_bekasuk.pdf
    • https://cdn.shopify.com/s/files/1/0436/9727/5033/files/honing_guide_lie_nielsen.pdf
    • https://cdn.shopify.com/s/files/1/0432/1119/4525/files/78938021120.pdf
    • https://cdn.shopify.com/s/files/1/0440/1260/1502/files/89383509157.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/candy_compressor.pdf
    • https://cdn.shopify.com/s/files/1/0430/0963/8553/files/piwotedaxujugimijazi.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/bulagaxokorewimiwimes.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/daguvimepisepedoviruj.pdf
    • https://cdn.shopify.com/s/files/1/0428/7810/7811/files/architecture_design_books.pdf
    • https://cdn.shopify.com/s/files/1/0432/8456/2086/files/26109680597.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/22477879606.pdf
    • https://cdn.shopify.com/s/files/1/0430/3064/2837/files/karuvonexiti.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_off000058b3.bin
21f11883254a4be117b9fa036eebe0cba53ed00ba17cf784cba01b39ba9b33eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B3 5176 bytes
font_01_sfnt_off00006a6e.bin
17f28494d91f13e5761002fa56bc1b20e83c14164d50653fee4ac53536d95d14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6E 10476 bytes

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