Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bdf1ac1bd896ba…

MALICIOUS

PDF

50.5 KB Created: 2020-08-02 22:45:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3cdcd20f4d7cc0a492260459a66f438 SHA-1: b9033aa5f21bb9d521d76c406843d51d6c730aa0 SHA-256: 30bdf1ac1bd896ba3efb78d4e36b1d4915c8bbf8e39f58f9c124beaf6fb4bbea
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm pattern, with numerous links hosted on cdn.shopify.com, likely to obscure the malicious destination. The document body, though heavily obfuscated, contains embedded URLs that are consistent with these findings. The presence of urgency and callback lures further suggests a phishing or scam attempt.

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=fundamentals+of+financial+management+test+bank+pdf
    • http://files.jacksonvilleartistsguild.org/uploads/1/3/0/7/130775557/nasinonuninolukafaz.pdf
    • http://files.baln.org/uploads/1/3/0/8/130814232/e7828.pdf
    • http://files.paiboon.biz/uploads/1/3/1/4/131406762/1208977.pdf
    • https://cdn.shopify.com/s/files/1/0433/9793/9361/files/45415084583.pdf
    • https://cdn.shopify.com/s/files/1/0432/0487/0305/files/morapevekekubelagemafid.pdf
    • https://cdn.shopify.com/s/files/1/0438/3241/0272/files/2018_mustang_brochure.pdf
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/47698979207.pdf
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/8431260365.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/visaboxe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2768/5799/files/sparknotes_the_things_they_carried.pdf
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/pulibifuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/9779/2420/files/fuzowezupef.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/pivifatejalul.pdf
    • https://cdn.shopify.com/s/files/1/0435/1416/7450/files/k_michelle_net_worth.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4496/files/sadesajozodo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4618/2822/files/62034922535.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/50270405731.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_off0000785b.bin
7eb8358f0adecdb062763b1902d57fcc884b6bb702ecc723134b31b8bce97d42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x785B 5420 bytes
font_01_sfnt_off00008ab8.bin
a0259320a93c3f124efee30bb8c1e8c7615ad8bbf521cc088ab2339604ee0936		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB8 10288 bytes
font_02_sfnt_off0000ade6.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADE6 4324 bytes

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