Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7476f04b25c8774…

MALICIOUS

PDF

34.0 KB Authoring application: Poppler-utils
MD5: a8d00c12352720af46cfb9debbe81e8b SHA-1: 0f5cd78c523a64ea642622a344268687d32ee0bb SHA-256: c7476f04b25c87740fc533e0f416f6c887b7136055a118e50415ede3ec605c8b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF files on various domains, consistent with SEO poisoning or phishing campaigns. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though partially corrupted, contains text related to transformer polarity testing, which may serve as a lure.

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://basiccomputertutoring.com/uploads/1/3/0/4/130489572/9722166.pdf
    • http://cabinetdanconsulting.com/uploads/1/3/0/4/130489448/f77eb5bda3e19a.pdf
    • http://cindycroot.com/uploads/1/3/0/4/130478160/xosatiju.pdf
    • http://straitcycles.us/uploads/1/3/0/6/130620940/5616276.pdf
    • http://ncohouston.org/uploads/1/3/0/6/130604102/16eb88977c.pdf
    • http://myqualityvalue.com/uploads/1/3/0/4/130483546/piwuj.pdf
    • http://nextgenadvancedsupplements.com/uploads/1/3/0/5/130590295/vimux.pdf
    • http://lukasnotten.com/uploads/1/3/0/5/130590334/fimisoxosezu_liduk_lavasujesim.pdf
    • http://bozemanradiant.com/uploads/1/3/0/5/130590594/birarefuja.pdf
    • http://yissilmissil.com/uploads/1/3/0/5/130590374/7614420.pdf
    • http://dream-maker-institute.com/uploads/1/3/0/5/130544243/vunageme.pdf
    • http://run-u-nut.net/uploads/1/3/0/6/130605065/7535bd17.pdf
    • http://nataliegoldfein.com/uploads/1/3/0/6/130605314/9915236.pdf
    • http://campowasa.com/uploads/1/3/0/5/130539838/864596.pdf
    • http://whiterosecoaching.weebly.com/uploads/1/3/0/6/130639643/1622260.pdf
    • http://netada.xs-motors.pro/uploads/2020/01/29/2337572.pdf
    • http://naturalacumen.com/uploads/1/3/0/6/130639575/b7d076ab.pdf
    • http://taylorsplayground69.com/uploads/1/3/0/6/130640061/78b842b30b50a.pdf
    • http://koidesing.com/uploads/1/3/0/2/130273625/tubuwetobe_bosadatuxitun_xufuliragivid_rudipab.pdf
    • http://behinddallas.com/uploads/1/3/0/2/130270987/noduripetoveperuru.pdf
    • https://jepizalobatise.weebly.com/uploads/1/3/0/2/130272394/9531514.pdf
    • http://mynutritioninnovation.com/uploads/1/3/0/5/130539657/130539657.html#polarity+test+of+transformer+lab+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001592.bin
99cb7be88b81e3ded3343041148ee451b72d47a8fdfbccb4389a3ec04660c07b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1592 7408 bytes

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