Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ed3af863778d12e…

MALICIOUS

PDF

38.9 KB Created: 2020-08-02 08:58:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0fd5104617844035b4c360194726633 SHA-1: 6f86682f55b8b5d2b124106921a95e8e638b2c2c SHA-256: 9ed3af863778d12ed021a69194e9ddf106f9999cd8642cb835e7179397b1cbd5
148 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=xfinity+com+norton'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on cdn.shopify.com, suggesting an attempt to game search engines or distribute content. The presence of a low-severity heuristic for a download button and a medium-severity heuristic for a callback lure further supports a phishing or scamming intent. The document body contains the malicious URL and references to Xfinity and Norton, likely as part of a lure.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=xfinity+com+norton
    • http://files.icnorcom1970.com/uploads/1/3/1/4/131454355/sefav.pdf
    • http://files.vividbeautybar.com/uploads/1/3/1/0/131071056/degemugo_kufeturora_gexomafebedipa_nasuwak.pdf
    • http://files.sidleymountainoutlaws.com/uploads/1/3/1/4/131408942/9084672.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/28222747259.pdf
    • https://cdn.shopify.com/s/files/1/0430/7386/3842/files/menomelemolafotim.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1782/files/kusirunumemu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/rorukavorupa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sekokejeninidifowabofu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/pefuzowunipinu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3579/4344/files/90697353397.pdf
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/lonegudefadomofexizi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1089/files/rizukilupijuzagumosote.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puwojadudabub.pdf
    • https://cdn.shopify.com/s/files/1/0429/6487/7475/files/ryobi_bt3000_tablesaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/xutiwuvuwa.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/nomokavesabarotumil.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_off00005b9c.bin
431eda454165ad3b4745324e5c8ff418a2f29555f43ca9946e2a0c62c58d0b7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9C 4684 bytes
font_01_sfnt_off00006b82.bin
b0d51b845f6fb76e276dd36659486295cc04ba50ea8951d7387cfe97396c6490		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B82 10404 bytes

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