Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6035543624db5e…

MALICIOUS

PDF

39.1 KB Authoring application: Poppler-utils
MD5: a073ab99ef5fbebca5990d99fb787d6d SHA-1: 7ae8ed4e8114d78cc51ae35173dc78d0f1f61c47 SHA-256: ce6035543624db5ecd9833937ff5a912469967f53f56f488788bd5f95bdee737
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. This strongly suggests a phishing or malware distribution campaign. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports this assessment. No scripts were extracted from this sample.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://nothingtotriflewith.com/uploads/1/3/0/5/130547286/povawovi-dewijuji-magobep.pdf
    • http://sugine.fcshield.com/uploads/2020/01/28/d46406eb1483f.pdf
    • http://animaliadiertraining.net/uploads/1/3/0/6/130621220/zugitijebazux.pdf
    • http://xil.premier-b.ru/uploads/2020/01/28/guwasu.pdf
    • http://redbarhalifax.com/uploads/1/3/0/6/130603696/8721956.pdf
    • http://mylifebuilder.org/uploads/1/3/0/5/130551656/bcd50.pdf
    • http://nirvanaeventlighting.com/uploads/1/3/0/3/130313345/65ca60d57398.pdf
    • http://declareyourday.com/uploads/1/3/0/4/130476157/6a37ca01e8.pdf
    • http://wheelhorseparts.net/uploads/1/3/0/6/130603959/pawevufabunuvaz.pdf
    • http://thesingbabysingshow.com/uploads/1/3/0/7/130738882/130738882.html#feminist+critical+perspective+definition

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000125d.bin
4133c3ebee74f73d1dd6a8b8b5b2f0d73c72bec868e0680f4dabae963f897681		 pdf-font-stream PDF embedded font (sfnt) at offset 0x125D 8960 bytes

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