Malicious PDF — malware analysis report

Static analysis result for SHA-256 5699f22f8c6ec1c9…

MALICIOUS

PDF

42.4 KB Created: 2020-08-06 21:25:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50e4ed55e498f8e7d2b04a39196abf1a SHA-1: 0fc8361c3c6a1743aa68d405b26c0e96f49a2342 SHA-256: 5699f22f8c6ec1c9ee8c5c72567aa28bfc30799dbb00f12f0bd134223856534c
120 Risk Score

Malware Insights

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

This PDF document contains a malicious redirector link disguised as McDonald's coupons. The document body and embedded URLs indicate a lure to a suspicious domain, ttraff.ru, which is known to host malicious redirectors. The PDF also hosts a large number of external PDF links, suggesting a link farm for SEO manipulation or traffic redirection. No scripts were extracted, but the primary malicious activity is the redirection to the malicious URL.

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=mcdonalds+coupons+may+2020+pdf
    • http://files.jillianburt.com/uploads/1/3/1/4/131437299/buvorona.pdf
    • http://files.markbrayfineart.com/uploads/1/3/0/7/130738949/2571407.pdf
    • http://files.sustainabilityconference.us/uploads/1/3/1/6/131607075/xibanom.pdf
    • http://files.100womenwhocarestlucia.com/uploads/1/3/0/7/130775308/4eac479463644.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/13788149829.pdf
    • https://cdn.shopify.com/s/files/1/0431/3301/0074/files/agreement_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/7430/6727/files/tiperonuduviku.pdf
    • https://cdn.shopify.com/s/files/1/0440/0162/4214/files/krav_maga_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7301/1866/files/1_to_1000_numbers_in_english_words.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdf
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/zunon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/34066191023.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6334/files/goxafilozugibokaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6568/files/tupebat.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_off00006660.bin
cf27fad148735cc76bc93d22afd125bab584b342647f4f9323f43dd0a559c462		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6660 5584 bytes
font_01_sfnt_off00007969.bin
f89daa3bf5ff62b090ab4ba328a548c2f0e70cb7c520dcd45d300788ff791a9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7969 10292 bytes

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