Malicious PDF — malware analysis report

Static analysis result for SHA-256 42b72cfdec04e66a…

MALICIOUS

PDF

43.3 KB Created: 2020-08-03 10:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 583e2b71c4e1396a9079da31f4c79bc2 SHA-1: c73bb498aea64ab803ea5e3308f06ac86543437e SHA-256: 42b72cfdec04e66a9a153112c5057f59979a2dff0e6dada6c9479bdf8e7c1724
140 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though obfuscated, contains the malicious URL and appears to be a lure, possibly related to a scam or phishing attempt. The presence of a callback lure heuristic further supports a phishing or scam context. No scripts were extracted from this sample.

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.ru/pify?keyword=sailor+moon+theme+lyrics
    • http://files.diopayouth.org/uploads/1/3/1/3/131382092/gakexopewiwivak.pdf
    • http://kirinam.roanmountainglass.com/uploads/1/3/1/4/131437601/tibibu-powereribun-wipodanuvogidu.pdf
    • http://files.lizcraftillustrations.com/uploads/1/3/1/6/131636719/0aadc9edfe6dac.pdf
    • http://files.dantealighierimelbourne.com/uploads/1/3/0/7/130776864/togadero.pdf
    • http://files.lwcmusic.org/uploads/1/3/2/6/132681901/sosevolizute-fizudozi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2609/6036/files/55815194139.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/80362562332.pdf
    • https://cdn.shopify.com/s/files/1/0438/2985/4368/files/68818610658.pdf
    • https://cdn.shopify.com/s/files/1/0438/4181/4693/files/kewawotazobazezoma.pdf
    • https://cdn.shopify.com/s/files/1/0433/5199/8623/files/welding_skills_workbook_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/8339/1395/files/9433264985.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/peniwusov.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6952/files/wosoxujudidujepimowepa.pdf
    • https://cdn.shopify.com/s/files/1/0437/2578/3190/files/vevekawanafe.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/85490674543.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/sefomukup.pdf
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/23743643976.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/21628764984.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fb6.bin
dc07a79e2f31972dae265941f76fba088f2bfabeaa819062b42c5b0235721d79
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB6 5032 bytes
font_01_sfnt_off00007090.bin
5e2f82705fdddaaeae81d47e5838e216da90389ff136b5fe6f729a9fe748d03e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7090 9824 bytes
font_02_sfnt_off0000923a.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x923A 4324 bytes