Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e9fe227e57bb77…

MALICIOUS

PDF

33.3 KB Authoring application: ImageMagick
MD5: 527e721ba97f6dd81acd91079d0315ae SHA-1: 57191262f9f6589c389b326d11d30c11237b55ea SHA-256: 92e9fe227e57bb77abbd21a99aab26c35f86aff7f28b67f8e0e0da65effba2be
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO poisoning or phishing campaigns. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports this assessment. No scripts were extracted, and the document body contained mostly obfuscated or irrelevant text, but the heuristic firings and the sheer volume of external links are strong indicators of 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://memeg.ogo.best/uploads/2020/01/27/af4d1f.pdf
    • http://shoprichlee.com/uploads/1/3/0/6/130639360/vexebifatupir_jojunukavam.pdf
    • http://silane-guard16.ru/uploads/2020/01/28/8471635.pdf
    • http://actorheadshotphoto.com/uploads/1/3/0/3/130323789/bameban.pdf
    • http://kibedu.aroxj.info/uploads/2020/01/28/funudaxufumafakagis.pdf
    • http://rainbowsprinklescupcakery.com/uploads/1/3/0/4/130488696/sekosolovadagate.pdf
    • http://shtory.pro/uploads/2020/01/27/ff474fcf6e109a.pdf
    • http://weddingenchanted.com/uploads/1/3/0/5/130551391/de15cfb94f.pdf
    • https://mozaxazanukotab.weebly.com/uploads/1/3/0/4/130435684/404898.pdf
    • http://lauferrari.com/uploads/1/3/0/4/130435577/jusizuwulatinilazuk.pdf
    • http://cosmicads.top/uploads/2020/01/27/58ceb8093905.pdf
    • http://dominicbercier.com/uploads/1/3/0/5/130551585/xabopisinagozozu.pdf
    • http://myfloridaec.org/uploads/1/3/0/6/130640236/7477139.pdf
    • https://tenimilo.weebly.com/uploads/1/3/0/6/130604351/xirikevexifoz.pdf
    • http://seanrancier.com/uploads/1/3/0/6/130604441/xitanutobo.pdf
    • http://copyrightcontact-1000021974142.com/uploads/2020/01/27/gatonisolodidix_senugutami_xiwaf.pdf
    • http://rawobosek.bibaandboba.info/uploads/2020/01/28/gepekefobareni.pdf
    • http://mikaelpettersson.net/uploads/1/3/0/2/130289290/4876317.pdf
    • http://sixunavofi.audiostart76.icu/uploads/2020/01/29/mikavowavowegaxenane.pdf
    • http://t3wellness.com/uploads/1/3/0/6/130605384/8550182.pdf
    • https://zawavapivas.weebly.com/uploads/1/3/0/5/130588733/f1d9cd0a.pdf
    • http://thiruvizha.ca/uploads/1/3/0/6/130620384/xamabubefe.pdf
    • http://nanoluge.com/uploads/1/3/0/6/130621829/6155433.pdf
    • http://lojavuv.markskc.xyz/uploads/2020/01/27/7965614.pdf
    • http://yaldocargo.com/uploads/1/3/0/2/130272332/130272332.html#terraform+aws+login+profile

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001672.bin
784ae47964d942b77c6f8e6c804fca77b204d31f0da0aa9ebfb54fc458304d60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1672 7200 bytes

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