Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca422d71fa705f2d…

MALICIOUS

PDF

45.4 KB Authoring application: ImageMagick
MD5: 5e3cfa97bf2bdb7b537f1a8964fe716f SHA-1: 3fe079c4a816d040e186503dfdfb8b71dbeaaa7e SHA-256: ca422d71fa705f2da612acdba373bd2148d489c0fab6c2bd461b89fb0dcab297
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded URLs, indicating a link farm designed to redirect users to potentially malicious content. The heuristic PDF_SEO_LINK_FARM specifically flags this behavior, with the first observed URL being http://lenovoruti.smart-time.store/uploads/2020/01/28/karodijuwa-bawanatumel-kevoroxebuketu-fupafolul.pdf. No scripts were extracted from this sample.

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://lenovoruti.smart-time.store/uploads/2020/01/28/karodijuwa-bawanatumel-kevoroxebuketu-fupafolul.pdf
    • http://aimhealthgta.com/uploads/1/3/0/2/130271219/zovogili.pdf
    • http://slimeshoppe.com/uploads/1/3/0/2/130271095/4632718.pdf
    • http://obituar.org/uploads/1/3/0/5/130539742/2d98891f7c662b.pdf
    • http://srilanka-explorer.net/uploads/1/3/0/5/130589078/rilerilitete.pdf
    • http://mobilityeco.com/uploads/1/3/0/5/130539792/50bd1d74.pdf
    • http://metrodetroitofficials.com/uploads/1/3/0/2/130270936/998044.pdf
    • http://vokum.agicole-acces.com/uploads/2020/01/28/fotebamagozirizov.pdf
    • http://mojohomeautomation.com/uploads/1/3/0/2/130271087/5026922.pdf
    • http://nc-zeitgeist-foundation.org/uploads/1/3/0/4/130478295/girokikopuwatedexave.pdf
    • http://summit2summitcoaching.com/uploads/1/3/0/5/130551164/282a4.pdf
    • http://nowphotobooths.com/uploads/1/3/0/5/130544138/keruwekaz_kenonejes_parabip_valoguma.pdf
    • http://puwikigej.invoicing.space/uploads/2020/01/28/9094e0e8546dd.pdf
    • http://thehumancult.com/uploads/1/3/0/6/130639863/bojuvezudanajo_buvosa_zifadux_zatikiputafan.pdf
    • http://miamfoundation.org/uploads/1/3/0/3/130379098/2788396.pdf
    • http://tccstories.com/uploads/1/3/0/5/130588434/345fcf.pdf
    • http://bumed.penostroy.com/uploads/2020/01/28/4957226.pdf
    • http://judgeammendola.com/uploads/1/3/0/3/130379653/3649358.pdf
    • http://gosapar.com/uploads/1/3/0/5/130550724/7477732.pdf
    • http://smashmouthsweetsllc.com/uploads/1/3/0/6/130621998/7366706.pdf
    • http://mydmdesign.com/uploads/1/3/0/6/130604667/696f73812bd5.pdf
    • http://latoniaprice.com/uploads/1/3/0/2/130289235/47338232877a38.pdf
    • http://balloonsoverbranson.com/uploads/1/3/0/4/130489226/jaxunijapuba_perix.pdf
    • http://myajtraining.com/uploads/1/3/0/5/130539553/130539553.html#myasthenia+gravis+treatment+guideline
    • http://balloonsoverbranson.com/uploads/1/3/0/4/130489226/jaxu

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001731.bin
d053fc337e9fcf0f3b851c2a8a3aa7420a89fd97f25e8539424e8e115a110187		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1731 8372 bytes

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