Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ecd998c94732e5c…

MALICIOUS

PDF

41.7 KB Created: 2020-08-11 17:30:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03ccb45cdfbcee932985f9c80d3126e2 SHA-1: 15e094e159ee1d041a98ba33d9831c4f51ba3946 SHA-256: 1ecd998c94732e5c0ff63e163ef1847d91b33c19bfbc309991177425bf6bc4b6
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning tactic designed to funnel users to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.com/pify?keyword=butler+parker+pdf
    • http://files.thetlacademy.shop/uploads/1/3/1/3/131384789/dupive-madelubupazape-dezarekinoza.pdf
    • http://monojifi.paraglidingintaiwan.com/uploads/1/3/1/4/131437886/944670.pdf
    • http://files.laplancheltd.com/uploads/1/3/1/4/131453421/tavir_jovosopu.pdf
    • http://fikutul.mrhaglin.com/uploads/1/3/0/8/130814328/5743800.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/dotuvup.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/gubilepiforupu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/zovegelizidufudixiwab.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/teaching_thinking_skills.pdf
    • https://cdn.shopify.com/s/files/1/0434/1448/7190/files/zetekogojoxum.pdf
    • https://cdn.shopify.com/s/files/1/0436/0346/0259/files/ielts_writing_actual_test.pdf
    • https://cdn.shopify.com/s/files/1/0431/0243/7527/files/borawezaratonuvuzugefaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/81232481245.pdf
    • https://cdn.shopify.com/s/files/1/0428/5644/8167/files/76853353847.pdf
    • https://cdn.shopify.com/s/files/1/0429/6015/8873/files/46043951246.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/how_to_download_videos_from_vimeo.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_off0000653c.bin
e1e4a2cdccf1c6d5b7d7290b41ba544b50a414c0d5e623865985d512828120e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x653C 4968 bytes
font_01_sfnt_off00007639.bin
4144c432811cbbb43babc5d5f6ad3135de0a5b54f4925adaec55cc48b8a8ab2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7639 10584 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.