Malicious PDF — malware analysis report

Static analysis result for SHA-256 9da3b2fb14e0927c…

MALICIOUS

PDF

61.1 KB Created: 2020-08-17 10:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca355fa87f1213db0e0d7c19ffbf766c SHA-1: 06cded55a62fec72b3ecae685d953494f00522ab SHA-256: 9da3b2fb14e0927cb89257c3669214f0bae2517597a6367bd79786c9b6008b77
180 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body also contains text that appears to be a lure for a password-protected archive, and a callback phone number lure. These elements suggest a phishing or scam campaign designed to trick the user into interacting with malicious links or providing sensitive information.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=blackberry+8900+os+6++link
    • http://files.lvapparel.net/uploads/1/3/0/7/130738614/6039566.pdf
    • http://piwuxefip.uncdf-a2f-kigoma.com/uploads/1/3/0/7/130776225/881982.pdf
    • http://sobokasob.dosterleadershipconference.com/uploads/1/3/1/1/131164250/giwotu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1837/0728/files/48590151753.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7539/files/8047088669.pdf
    • https://cdn.shopify.com/s/files/1/0437/6264/7191/files/binkw32._dll_for_sleeping_dogs_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/carson_dellosa_reading_comprehension_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/fumutajadofokekonir.pdf
    • https://cdn.shopify.com/s/files/1/0431/6538/4866/files/49232836543.pdf
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/87153488900.pdf
    • https://cdn.shopify.com/s/files/1/0432/1637/1867/files/dapujiliduwemi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8333/2772/files/faxagiwizusikemekovi.pdf
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/31562071677.pdf
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/12177161450.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1803/files/91036361357.pdf
    • https://cdn.shopify.com/s/files/1/0433/9512/1319/files/lajaso.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_off0000aba0.bin
67ebcc3b7f9a41e6f10a5824e759c09b47f1f86ffb0686d079e38caacc3d1baa
pdf-font-stream PDF embedded font (sfnt) at offset 0xABA0 5796 bytes
font_01_sfnt_off0000bf65.bin
93acf7283f1d7f6342bb41bff8813f8cd272af39821f6197864e7d274a4c68ed
pdf-font-stream PDF embedded font (sfnt) at offset 0xBF65 11448 bytes