Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8a8c1c9363968ef…

MALICIOUS

PDF

38.8 KB Authoring application: pstoedit
MD5: bcccc0abf79363a61b7ff2f7e402cb29 SHA-1: 963e8d6e7d1504a201496a14d7b226d06ddcbdac SHA-256: f8a8c1c9363968efb7787fecb50c66915cb27a3412aa3325a071d81709a9d02e
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The PDF_SEO_LINK_FARM heuristic indicates a large number of embedded external links, with the primary domain being callthemformeprototype.com. The document body contains numerous URLs, suggesting a phishing or redirection attempt. The presence of these links and the high confidence scores from detection engines strongly indicate a malicious intent to lead users to harmful content.

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://callthemformeprototype.com/uploads/1/3/0/3/130379237/1871030.pdf
    • http://beatricecloakefineart.com/uploads/1/3/0/4/130436171/c4ee7e7584.pdf
    • http://tranquilityhilllodge.com/uploads/1/3/0/6/130621203/6096051.pdf
    • http://bethanylutherancushing.org/uploads/1/3/0/2/130288924/2306054.pdf
    • http://yeldos.com/uploads/1/3/0/3/130313345/1b7159901.pdf
    • http://susanmastalsfoundation.org/uploads/1/3/0/6/130621622/fepiwuleroredinag.pdf
    • https://rewivozilalod.weebly.com/uploads/1/3/0/5/130543511/7281149.pdf
    • http://midlandareahomes.org/uploads/1/3/0/4/130489226/484028.pdf
    • http://varshiniarza.com/uploads/1/3/0/4/130478261/2625633.pdf
    • http://ucddowntown.org/uploads/1/3/0/5/130589362/3f7e85f6320.pdf
    • http://thepilgrimageofhope.org/uploads/1/3/0/5/130551002/tokirinajiti_godewadix_nusibufaw.pdf
    • http://phoenixrunners.weebly.com/uploads/1/3/0/5/130539046/407845.pdf
    • https://kumizadeti.weebly.com/uploads/1/3/0/4/130483428/7659279.pdf
    • http://20yrsyoung.com/uploads/1/3/0/2/130273799/1166931.pdf
    • http://xplanator.com/uploads/1/3/0/2/130271217/f3686.pdf
    • http://wisteriawren.com/uploads/1/3/0/4/130489367/5c9b3c.pdf
    • http://laketravischeerleading.com/uploads/1/3/0/5/130589328/duxiwinetokewebo.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/5/130588968/130588968.html#hipmunk+free+printable+bulletin+board+letters+templates

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014f3.bin
e9001520f4f42b891e4d9f4a6ef5f4c87572d2312d7cce2216522f5587acb541		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14F3 8552 bytes

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