Malicious PDF — malware analysis report

Static analysis result for SHA-256 de130ca2fdd423d4…

MALICIOUS

PDF

44.0 KB Created: 2020-09-03 06:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4604ae06a9fb6c607333f5f54f46165 SHA-1: 30c91122ab71afa1f1931a9bbd88925820e5c146 SHA-256: de130ca2fdd423d48c5b798be5992a1f737dd5d1d64866bbfd45d87fe8089567
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URL points to a known malicious redirector, suggesting an attempt to lure users to a malicious site. The ML classifier also strongly indicated maliciousness. The document body contains the same URL, reinforcing the malicious intent.

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/wix?keyword=conversion+sheet+metal+gauge+to+inches
    • https://static.usrfiles.com/ugd/b8c837_c9cfdad9411f46a3af873fc3decc710c.pdf
    • https://static.usrfiles.com/ugd/113e89_1092c9d8658a4a2a9874b71831b7078e.pdf
    • https://static.usrfiles.com/ugd/0d2908_037d3a030d2f4ffda23318d24d0ad082.pdf
    • https://static.usrfiles.com/ugd/a0905b_fc31fa10ce724cee9888c4afa8d1d7b0.pdf
    • https://static.usrfiles.com/ugd/baef12_82ede52cf3c144dba3040d032effbf24.pdf
    • https://cdn.shopify.com/s/files/1/0435/5584/8355/files/nufesupunijub.pdf
    • https://cdn.shopify.com/s/files/1/0434/2598/8757/files/filaxawilobalaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/46522645562.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1417/files/wowivuluwotixitiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/natepuradokipanonekiri.pdf
    • https://cdn.shopify.com/s/files/1/0435/0964/5478/files/75325025740.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/exercises_active_and_passive_voice.pdf
    • https://static.usrfiles.com/ugd/de9003_5911dce996c84fb58c47918c4d722888.pdf
    • https://static.usrfiles.com/ugd/857e61_0b06347ce4b847a2ab882b94480ebbe6.pdf
    • https://static.usrfiles.com/ugd/90c678_69f07ca2d45f46fe8884f1ad9ac25d85.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_off00006432.bin
dc02cfbb0ba242da8d0a19025551c44df40615b829b619c36a66c1ea85576df9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6432 5180 bytes
font_01_sfnt_off000075a7.bin
21baac8549f546837bef87268109fbf20bc488c792919e35bda6569b72a76f7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75A7 13880 bytes

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