Malicious PDF — malware analysis report

Static analysis result for SHA-256 56d06401e1a0fa5c…

MALICIOUS

PDF

38.2 KB Authoring application: ImageMagick
MD5: 72aa4ef854b92813ff224d4f56c15b61 SHA-1: 187bebfbd6a63e69d1a4ba3a6af0a57b47936024 SHA-256: 56d06401e1a0fa5ce84243746e14912ce81b3c29397b6576264897a3b5c26344
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF files. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to drive traffic to malicious sites or distribute further malware. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious nature of this file. The document body itself contains garbled text mixed with legitimate-sounding phrases and the embedded URLs, suggesting a lure to disguise the malicious intent.

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://slot.cx/uploads/2020/01/28/9120047.pdf
    • http://lorilearnardart.com/uploads/1/3/0/6/130603878/5679392.pdf
    • http://adamsoilcompany.net/uploads/1/3/0/5/130540609/b36aaf9dd6827bc.pdf
    • http://korekoku.knives.promo/uploads/2020/01/29/3782862.pdf
    • http://rup.sabuyjaishopping.com/uploads/2020/01/28/1300500.pdf
    • http://cedarcreekgypsy.com/uploads/1/3/0/5/130545884/dejifujuwajara.pdf
    • http://musicforsoho.com/uploads/1/3/0/5/130588589/4859670.pdf
    • http://rotateproxy.com/uploads/1/3/0/2/130272988/4871512.pdf
    • http://zeturifota.cabalpulse.pw/uploads/2020/01/28/241f938b7.pdf
    • http://acumensalestrainingconsultants.com/uploads/1/3/0/4/130483202/ruvemojo_rosot.pdf
    • http://morgane-claudine-laurent.com/uploads/1/3/0/3/130379583/tatojaxufi-lisotagerukop-gomosuba.pdf
    • http://mscalvin.com/uploads/1/3/0/7/130738871/130738871.html#riverside+chaucer+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012a6.bin
a73137f300a42ea6983c062b5b6c8cbf67552c3586f49d5ddc5fc825b84432e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A6 8248 bytes

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