Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad68a3dd27d2bbd…

MALICIOUS

PDF

40.1 KB Authoring application: Scribus First seen: 2020-09-24
MD5: cf7bcd909cbf6c05fcc1df4da008174e SHA-1: a436954317a3d1e68609ad9d0a3a7ff77b012c30 SHA-256: fad68a3dd27d2bbd9d5063e1baaf90a6da6c2de7591bcfd858248185efd5c5e5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV specifically identifying it as Pdf.Phishing.TtraffRobotInstall. The document body text, though partially corrupted, contains the phrase 'What to do after blighted ovum' and lists numerous URLs, suggesting a phishing or spamming campaign. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://teplolip.ru/uploads/2020/01/28/jitubasijalodapavenu.pdf In PDF document text
    • https://zemozujabuwixux.weebly.com/uploads/1/3/0/4/130476035/3524954.pdfIn PDF document text
    • https://gezafelusuw.weebly.com/uploads/1/3/0/4/130436213/061024204b2.pdfIn PDF document text
    • http://zeloz.dekocasa.com/uploads/2020/01/27/0cd1cd3b.pdfIn PDF document text
    • http://jajutupux.powking1.ru/uploads/2020/01/28/66b53038a97bac.pdfIn PDF document text
    • https://budiwewozu.weebly.com/uploads/1/3/0/5/130543057/vabatokas.pdfIn PDF document text
    • http://durewito.market-gorod.ru/uploads/2020/01/27/23728f714cb4ecf.pdfIn PDF document text
    • http://uaenoon.net/uploads/2020/01/28/jafejunuro-nategaxisow-beseruz.pdfIn PDF document text
    • https://rafilaluxonijew.weebly.com/uploads/1/3/0/4/130476150/130476150.html#what+to+do+after+blighted+ovumIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A4 8184 bytes
SHA-256: f70485fbbbbbd368826baf27a878b5690893a9cd2bdd3f2094a917eab8deb55a
font_01_sfnt_off0000551f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x551F 16268 bytes
SHA-256: 5d7ebd720715cd86529581f1d40cc643f68465477bd430d4be5ff736bc95f798

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