Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee30faeeab5a9fc…

MALICIOUS

PDF

46.2 KB Created: 2020-07-25 18:43:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: debc6d149e68d39aac9476b8ac3e9a4a SHA-1: f1e252021aaedb56a494fee045cad8faa4fde606 SHA-256: 9ee30faeeab5a9fc3e3013f17a00c0c18772dfc0394b1e22fd62c835ee84c846
152 Risk Score

Malware Insights

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

The PDF document contains a malicious redirector link and a large number of external links, indicating a link farm designed to distribute malicious content. The document body, though heavily obfuscated, suggests a lure related to 'Money Heist' to entice users to click the malicious link. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=money+heist+netflix+parents+guide
    • http://files.militariarg.com/uploads/1/3/1/8/131856052/kixewokozomivaf.pdf
    • http://files.merakicowithlove.com/uploads/1/3/1/3/131380445/tifolazixisefone.pdf
    • http://files.elginparkathletics.com/uploads/1/3/1/4/131406413/xikudenaw.pdf
    • http://files.blackandrightconsulting.com/uploads/1/3/0/8/130813934/1631458.pdf
    • http://files.courtesytravel.ca/uploads/1/3/0/8/130814238/donenofod.pdf
    • http://files.courtesytravel.ca/uploads/1/3/0/8/13081423
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/60948562621.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5687/files/busidowafofusujeginat.pdf
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/wufemilikusata.pdf
    • https://cdn.shopify.com/s/files/1/0429/2250/8454/files/fefotot.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6165/files/tugik.pdf
    • https://cdn.shopify.com/s/files/1/0430/8772/4704/files/93463649867.pdf
    • https://cdn.shopify.com/s/files/1/0434/8733/0464/files/56394969380.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/97130804004.pdf
    • https://cdn.shopify.com/s/files/1/0436/4405/9806/files/fewenovunawudaxalizax.pdf
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/67698857981.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_off000074fc.bin
1e290f73cf4002373a54d5680bc890836fe55a3305d57c1cadf737b4e2a5f5a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x74FC 5360 bytes
font_01_sfnt_off0000873d.bin
080cb8e74785fc3c96a35f2fef50dbd96bb963fa253a53d62ce5360b1cf69292
pdf-font-stream PDF embedded font (sfnt) at offset 0x873D 10712 bytes