Malicious PDF — malware analysis report

Static analysis result for SHA-256 4507f9af66569549…

MALICIOUS

PDF

41.4 KB Created: 2020-04-06 04:17:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c128b2bbbbe891b6a208140a64059c5f SHA-1: 07f3a4c287b03645c06ae6da775bc40fc008d10a SHA-256: 4507f9af665695497e13485d832f446bddca8cc9f06e61994a1647ec75625fba
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDFs hosted on various domains, indicative of a link farm or SEO spamming operation. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves directing users to a network of potentially malicious or low-reputation websites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://buyorsellyours.com/uploads/1/3/0/6/130620325/130620325.html#concepto+de+organizaciones+que+aprenden
    • http://soranthewholesale.com/uploads/1/3/0/6/130603932/7862640.pdf
    • http://laughingdragon.com/uploads/1/3/1/4/131454265/ziwolaseliposiju.pdf
    • http://cpsmachine.com/uploads/1/3/0/5/130551859/6569576.pdf
    • http://colorado420jeans.com/uploads/1/3/0/5/130542964/tifirusavu-lapiwimiwog-nopetimop-mejuvatozevisub.pdf
    • http://scharschool.org/uploads/1/3/0/5/130589261/visagafid_lizafajudegun.pdf
    • http://predierilegal.com/uploads/1/3/0/9/130969986/1318692.pdf
    • http://devboxtest.ca/uploads/1/3/1/3/131380183/6eef4220301.pdf
    • http://gotocampusa.com/uploads/1/3/0/2/130270866/8779801.pdf
    • http://bellaviwellness.com/uploads/1/3/0/7/130775048/625ec5fc1658.pdf
    • http://duanescarpetcleaning.com/uploads/1/3/0/4/130483993/fiwumoledoj_wigavox_jobakazu.pdf
    • http://southerncarolinaindustrial.com/uploads/1/3/0/3/130323762/kepeze.pdf
    • http://billysbbq.net/uploads/1/3/0/5/130539888/3851.pdf
    • http://emersoncurtisbradford.com/uploads/1/3/0/4/130476401/vuwakapeduwu.pdf
    • http://charles-heiner.com/uploads/1/3/0/6/130604079/disijajisepad_tevavujuba_jakilomop.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_off000070a3.bin
b095009e1aa7b679086a2dd093949a1e2bfdfa179c83d9e64a20210f199a406d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70A3 1544 bytes
font_01_sfnt_off00007813.bin
057a9f4f04aaea4a644b6518778f55d651a0a3c6d9d959e9463c51a051650d9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7813 8272 bytes

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