Malicious PDF — malware analysis report

Static analysis result for SHA-256 a309bbfd4cd001ba…

MALICIOUS

PDF

50.9 KB Authoring application: pdf-parser
MD5: 3ce46c33334f015a2a9b7470821b7cf1 SHA-1: b9c6736c2bffe841d077f184a396eea18098be6f SHA-256: a309bbfd4cd001ba3c04b12b77c36236f81201748fd5e235691268d462134598
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further indicates a phishing or malicious redirection intent. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the attack pattern.

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://wifeycosmetics.com/uploads/1/3/0/5/130545421/dibizewed_dezuzam_lelakobufomi.pdf
    • http://myanmardiscover.com/uploads/1/3/0/6/130639892/vejizizurexogugaf.pdf
    • http://mimariposadesigns.com/uploads/1/3/0/2/130288751/6b2c132.pdf
    • http://dipuvawide.rawfaljuice.com/uploads/2020/01/28/putimofozefa-fezug-pupiwasajek.pdf
    • https://kerebipokesam.weebly.com/uploads/1/3/0/2/130289570/71eeb4095e1f64.pdf
    • http://wanderingalchemistjuiceco.com/uploads/1/3/0/2/130270980/aed8d10.pdf
    • http://zeroxuz.osteopat26.ru/uploads/2020/01/28/f07ff1bb1158.pdf
    • http://hayatimbirfilm.com/uploads/2020/01/28/9aeafb8220a58e6.pdf
    • http://ndtasanantonio.org/uploads/1/3/0/2/130289340/130289340.html#boxer+strength+training+workout

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001231.bin
b59f23887bf1bdc36a2ff8f01ff8a7fd090fa5c16fe5d3f2d4a90c925aaaab1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1231 8320 bytes
font_01_sfnt_off00008065.bin
1d1fa5121415f8f5353993473374918b9d2a38f433752094af4cce5d3be72c8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8065 16312 bytes

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