Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b0b059f97b2c5aa…

MALICIOUS

PDF

38.1 KB Authoring application: Mobipocket Creator
MD5: 1e0d7942f697549044bfa4a45869ea8a SHA-1: 8ba64f1184815940cdc555b40ab72d9764aedefe SHA-256: 9b0b059f97b2c5aa3445f87aacf6281e9fde028a2220adec0f2102490fa22212
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a large number of external links, indicating a link farm. ClamAV also detected it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs suggest a phishing or redirection campaign. The document body, though heavily corrupted, contains fragments related to 'Episode ignis achievement guide', possibly a lure.

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://cafefresco48.com/uploads/1/3/0/5/130589373/varivovevupofawifin.pdf
    • http://drosplans.weebly.com/uploads/1/3/0/6/130604154/6393634.pdf
    • http://themovingconcierge.com.au/uploads/1/3/0/4/130483961/tezinubaxako.pdf
    • http://younggunsfishingteam.com/uploads/1/3/0/6/130604737/pibuvejebut_melipapezekamo_fidum.pdf
    • http://paroxo.kelta.ru/uploads/2020/01/28/kosuxuvaxezo_jidepevure.pdf
    • http://cajarycapital.com/uploads/1/3/0/2/130272420/2fd6b124.pdf
    • http://molizu.raz-ezzhaya.ru/uploads/2020/01/28/puxazarudozafin.pdf
    • http://whatwonderfulwine.com/uploads/1/3/0/4/130436450/3a2d1457.pdf
    • http://trentriverdesigns.com/uploads/1/3/0/7/130776795/130776795.html#episode+ignis+achievement+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f9.bin
9dfce84950137b8b026753b1c280ad0b5d3cd1ab6f4c95f40f17fb2ec97bd16e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F9 8412 bytes

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