Malicious PDF — malware analysis report

Static analysis result for SHA-256 a01c088493154965…

MALICIOUS

PDF

42.7 KB Authoring application: Karbon
MD5: b6d61b5e58c93a66d1fc5015a52a7afd SHA-1: c145b0c7751708490c4ea21c762fc389a77a6444 SHA-256: a01c0884931549657bbce9b62174dfba1f64a84df8d5f68d765f4d1efb69aec5
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which strongly suggests a link farm or redirection tactic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or traffic generation. The document body itself appears to be corrupted or contains unrelated text, but the primary malicious functionality is derived from the extensive list of external links.

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 https://motabitoxine.weebly.com/uploads/1/3/0/2/130272610/beluzipeli.pdf
    • http://ktwines.net/uploads/1/3/0/4/130436121/01fc029.pdf
    • http://drconsultinginc.com/uploads/1/3/0/6/130604027/nolujutexel-bomik-gadad.pdf
    • http://cleaningservicesedm.ca/uploads/1/3/0/4/130476053/5913556.pdf
    • http://alessiadana.com/uploads/1/3/0/3/130379216/7612179.pdf
    • http://shahwar.com/uploads/1/3/0/2/130291596/8351395.pdf
    • http://melissathornephysio.com/uploads/1/3/0/6/130639317/fosorurafewes-lakule-vozojamegozubal.pdf
    • http://morgan-lindsey.com/uploads/1/3/0/6/130620478/sufatu-kebasipekepunul.pdf
    • http://spectacularvintageevents.com/uploads/1/3/0/6/130603748/4287138a166.pdf
    • http://satromforhouse.com/uploads/1/3/0/6/130620882/kibopagupuw.pdf
    • http://addisonbeaux.com/uploads/1/3/0/5/130551604/rixifozeduji.pdf
    • http://matchboxorganics.com/uploads/1/3/0/4/130476456/xeletawiro.pdf
    • http://dedotodep.valekor.ru/uploads/2020/01/28/jiperanuk.pdf
    • http://cocktailsnponytails.com/uploads/1/3/0/2/130270864/lomorek-zuwufo.pdf
    • http://promisewed.com/uploads/1/3/0/5/130539637/vosozipatobajoroxeze.pdf
    • http://mikefosterstunts.com/uploads/1/3/0/5/130551576/pozakalerujowijex.pdf
    • http://dutato.copyrightcontact-1000029438567.com/uploads/2020/01/28/1269192.pdf
    • https://bugulobo.weebly.com/uploads/1/3/0/4/130477152/7955668.pdf
    • http://mind4age.com/uploads/1/3/0/6/130639750/lirona.pdf
    • http://copyrightcontact-1000071854263.com/uploads/2020/01/29/rujezivesonupu_zarakogire_jejakew.pdf
    • http://studentcareer.ru/uploads/2020/01/27/dipedazuxuxes.pdf
    • http://krissyoneill.com/uploads/1/3/0/2/130291539/a5c92b1f06.pdf
    • http://millersgardenservicessuffolk.co.uk/uploads/1/3/0/2/130270837/67b06ebd8eb330.pdf
    • http://juliejesternewman.com/uploads/1/3/0/5/130550769/130550769.html#lloyd+webber+pie+jesu+sheet+music

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001760.bin
228a69051517fffd66f993f6151493a3ce850435ac68337f112216b470c2294a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1760 9372 bytes

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