Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad68a3dd27d2bbd…

MALICIOUS

PDF

40.1 KB Authoring application: Scribus
MD5: cf7bcd909cbf6c05fcc1df4da008174e SHA-1: a436954317a3d1e68609ad9d0a3a7ff77b012c30 SHA-256: fad68a3dd27d2bbd9d5063e1baaf90a6da6c2de7591bcfd858248185efd5c5e5
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to domains that appear to be part of a link farm designed for SEO manipulation. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing and traffic redirection. The embedded URLs are likely used to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://teplolip.ru/uploads/2020/01/28/jitubasijalodapavenu.pdf
    • https://zemozujabuwixux.weebly.com/uploads/1/3/0/4/130476035/3524954.pdf
    • https://gezafelusuw.weebly.com/uploads/1/3/0/4/130436213/061024204b2.pdf
    • http://zeloz.dekocasa.com/uploads/2020/01/27/0cd1cd3b.pdf
    • http://jajutupux.powking1.ru/uploads/2020/01/28/66b53038a97bac.pdf
    • https://budiwewozu.weebly.com/uploads/1/3/0/5/130543057/vabatokas.pdf
    • http://durewito.market-gorod.ru/uploads/2020/01/27/23728f714cb4ecf.pdf
    • http://uaenoon.net/uploads/2020/01/28/jafejunuro-nategaxisow-beseruz.pdf
    • https://rafilaluxonijew.weebly.com/uploads/1/3/0/4/130476150/130476150.html#what+to+do+after+blighted+ovum

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011a4.bin
f70485fbbbbbd368826baf27a878b5690893a9cd2bdd3f2094a917eab8deb55a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11A4 8184 bytes
font_01_sfnt_off0000551f.bin
5d7ebd720715cd86529581f1d40cc643f68465477bd430d4be5ff736bc95f798		 pdf-font-stream PDF embedded font (sfnt) at offset 0x551F 16268 bytes

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