Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b08e74573c3b8f2…

MALICIOUS

PDF

51.4 KB Created: 2020-08-23 22:29:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b259169214dddcf7d4e9638b601e498 SHA-1: f61ac4dd6534f3287d173e47450e0aeab0273b47 SHA-256: 2b08e74573c3b8f23df5cd3c62c1bf77d79a7f76ecaa22a71890e1e56a8fabdf
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to PDF files hosted on Shopify. One critical heuristic indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=accident+report+template+microsoft+word'. The document body also contains the same lure text, suggesting a social engineering attempt to trick users into downloading malicious content or visiting further compromised sites.

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.
  • 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.cc/pify?keyword=accident+report+template+microsoft+word
    • http://reruvi.suemannpaintings.org/uploads/1/3/1/1/131164250/bemip_dowojojogev_vejevejukobol.pdf
    • http://boxigobok.enjoyourlife.net/uploads/1/3/0/7/130739678/nosopiserojegisixi.pdf
    • http://files.lalearningacademy.com/uploads/1/3/1/4/131453598/judababin_wenademivexajes.pdf
    • http://files.weerkids.net/uploads/1/3/2/6/132682124/2bdb6f3bf05b.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/46073943196.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/newizasa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4452/7525/files/zanikepofodif.pdf
    • https://cdn.shopify.com/s/files/1/0433/2614/4670/files/21053743629.pdf
    • https://cdn.shopify.com/s/files/1/0434/6445/8405/files/biometrics_facial_recognition_technology.pdf
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/75999792136.pdf
    • https://cdn.shopify.com/s/files/1/0436/8121/8710/files/37647554271.pdf
    • https://cdn.shopify.com/s/files/1/0436/4910/6073/files/forbid_past_tense.pdf
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/14102092144.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_off00008b86.bin
33051d82b2581459db4d66d1990a5bb4ea876732eb42a5f187af09b4db621e6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B86 5384 bytes
font_01_sfnt_off00009db9.bin
73c7e9e397d5540588e679644f0c32b3a9ed6b56d7c47a45fdb5c81e6120a86c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB9 10376 bytes

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