Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2d53b2a21a4ebe…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 20:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62f0b1d23006c5cb2f6ff688b331d555 SHA-1: 3fb216aad2c38ddf77f4781bce17d7d06ab22caf SHA-256: ee2d53b2a21a4ebe76ce979df9054ceedacdda4c77067d0fd991532972070267
140 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments and URLs consistent with a callback phishing or tech-support scam, likely aiming to trick the user into calling a number or visiting a malicious link. The primary malicious URL is https://ttraff.cc/pify?keyword=affinity+water+email+address+format, which redirects the user to further malicious content.

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.
  • 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
  • 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.cc/pify?keyword=affinity+water+email+address+format
    • http://nuwin.rocksfestivals.com/uploads/1/3/2/3/132302780/f86f0d5d393f443.pdf
    • http://files.aquabydesign.co.uk/uploads/1/3/0/9/130969888/495522.pdf
    • https://cdn.shopify.com/s/files/1/0437/6769/3474/files/kevanudukokerumaxobozif.pdf
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/28331263593.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/online_application_form_1093.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5602/files/54400627218.pdf
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/avenir_font_family.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/62186581315.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/crm_manager_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/android_volume_booster.pdf
    • https://cdn.shopify.com/s/files/1/0436/1358/5566/files/luwizudatakurozazuduga.pdf
    • https://cdn.shopify.com/s/files/1/0433/7333/0586/files/fenivowo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/79361474106.pdf
    • https://cdn.shopify.com/s/files/1/0436/2380/9187/files/wezizopuxarivino.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_off000057a0.bin
628bd39c5e10cc012609218b2b18795f8ca09be87c6b1329c4fa8cd1544a8a03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A0 5236 bytes
font_01_sfnt_off00006968.bin
a801d5c6376da7ece9f8120547738b6383432619b04b9c488be0a999d4ae1834		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6968 15628 bytes

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