Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d1e7cfeda94eb9…

MALICIOUS

PDF

40.2 KB Created: 2020-08-30 11:39:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1261e3ea51051128705cacdb83595a6f SHA-1: 322b103c72a97e7e810ed489bc6e53b8d526f3c4 SHA-256: d0d1e7cfeda94eb9088e9c897b0a09b77b1527f12f2bc776b07a66cd5954fd28
152 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to a URL that appears to be a lure for downloading music. The document body also contains this URL, reinforcing the social engineering aspect. The presence of a large number of external PDF links, many hosted on Shopify and static.usrfiles.com, suggests a link farm used for SEO poisoning or distributing further malicious content. The ML classifier also strongly flagged this PDF as malicious.

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.me/wix?keyword=download+dj+tunez+ft+wizkid+and+reekado+banks
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/star_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1085/files/garakav.pdf
    • https://cdn.shopify.com/s/files/1/0434/2244/9820/files/proper_noun_examples_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/pesojipedesi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/resolejuwiroxugososito.pdf
    • https://static.usrfiles.com/ugd/b8c837_d87134b51c754a6f99a83597c7862a2f.pdf
    • https://static.usrfiles.com/ugd/b8c837_047d7581b34d4ac0aea64f87fae868b6.pdf
    • https://static.usrfiles.com/ugd/05900a_b97c479578734077baef5237e3ae13e4.pdf
    • https://static.usrfiles.com/ugd/e5a943_b0c4c1bee97d4e29bc2b5cd5a4b65fb2.pdf
    • https://static.usrfiles.com/ugd/cf79db_604261638ca0473e82ef8e7b234cee25.pdf
    • https://static.usrfiles.com/ugd/e4a001_0cf5859128f84d93a1bc17bb424a9a22.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec98312f23d4465883f3d64519f1ab75.pdf
    • https://static.usrfiles.com/ugd/87a178_ff750b75da75427ca6266bbd2e8642a8.pdf
    • https://static.usrfiles.com/ugd/d162e3_277b039ea9b04ba984d28bae48a56587.pdf
    • https://static.usrfiles.com/ugd/d01287_d086ca83980f4c209a7dbbd54876bb9d.pdf
    • https://static.usrfiles.com/ugd/b8c837_42a66ad919d34360ae6ce3c67c1ee1a9.pdf
    • https://static.usrfiles.com/ugd/b8c837_07d0c78823af452eb49be98f48523b22.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_off00005e30.bin
e1e999b72774fcf1985fad82bf7ea0123d0903e7ef9e5caae03b24f7db320b60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E30 5320 bytes
font_01_sfnt_off00007078.bin
b7397df5ca93aa7137a4d449054ad8d355d16c52b13821f2f1f3e1dba61eacef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7078 10340 bytes

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