Malicious PDF — malware analysis report

Static analysis result for SHA-256 92073e7555bde232…

MALICIOUS

PDF

46.3 KB Authoring application: Solid Converter PDF
MD5: 8e07bed4401909ad3471c87e242e2b22 SHA-1: 994cc3a1523c2e08002e7c0f84efbd7d106e6ea7 SHA-256: 92073e7555bde232e5ab994a520116ff66eee88548af295335a4270e906fe722
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 external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection also flags this as a phishing-related threat. The document body, though partially corrupted, contains many of these same URLs, suggesting the primary purpose is to direct users to a large collection of other PDF files hosted on various domains. This is consistent with SEO spam or a phishing campaign aiming to distribute malicious content or gather credentials.

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://tafojuja.rbc-crypto.ru/uploads/2020/01/28/71f1bfb85f0de.pdf
    • http://nicklibonati.com/uploads/1/3/0/5/130546294/c5d5e0.pdf
    • http://tbarandelahairstudio.com/uploads/1/3/0/5/130539497/d8144184bf8.pdf
    • http://acupunturavetbarcelona.com/uploads/1/3/0/4/130488662/sazojubazogegix.pdf
    • http://troitsa-ld.ru/uploads/2020/01/28/3760681.pdf
    • http://stalvanjaarsveld.nl/uploads/1/3/0/4/130435729/c304c2d0f10efd.pdf
    • https://noberiwimenikew.weebly.com/uploads/1/3/0/4/130488749/lemabona.pdf
    • http://smilyface.org/uploads/1/3/0/5/130543878/jufunuwek.pdf
    • http://momsofzion.com/uploads/1/3/0/3/130323255/885e4974.pdf
    • http://vipiski-besplatno63.icu/uploads/2020/01/28/6a714c96e02e.pdf
    • http://themindfulchristian.net/uploads/1/3/0/5/130546803/8549558.pdf
    • http://loveandorthodontics.com/uploads/1/3/0/4/130476045/fosipobejudemil.pdf
    • http://poxilebugo.i-love-my-mother.com/uploads/2020/01/28/wekesojofeve.pdf
    • http://rachelnamba.com/uploads/1/3/0/2/130288861/1b203.pdf
    • http://rhfibers.com/uploads/1/3/0/6/130621220/febeximetelomow.pdf
    • http://drliannebrown.com/uploads/1/3/0/5/130541881/pijami-tuvajolo-zikoxafanokukod.pdf
    • http://samarakajo.okna-alis.ru/uploads/2020/01/28/gelenazirevu.pdf
    • http://picturesbygerry.net/uploads/1/3/0/4/130488316/2994754.pdf
    • http://rudaneb.huba.tech/uploads/2020/01/29/lobapogiru.pdf
    • http://mystrugglemyvictory.com/uploads/1/3/0/3/130313241/konusupirogowe.pdf
    • http://mygametruckcostamesa.com/uploads/1/3/0/5/130544938/130544938.html#example+of+qualitative+research+paper+pdf+philippines

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015f6.bin
622b8a873a8f7aca26ca1d6ef3fec1a7e2d753bc557fbeddf6bcd945ba59ee59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F6 8224 bytes
font_01_sfnt_off00006da5.bin
5de3a077031988e6cf4ab4b743bd1cc7e8c72b6bb0cd8f7440092e49c94205c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA5 16204 bytes

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