Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b6aa34b77e55b49…

MALICIOUS

PDF

48.5 KB Authoring application: PDFedit
MD5: 90bbbbfdc68e73ddcc1f6739199e07dc SHA-1: 3d3bd74ed11656135ccc2436be040e108f19344d SHA-256: 9b6aa34b77e55b49db83b17de7bed68f8025ce0b21ad1a70de82988bc221298c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique commonly used for SEO poisoning or phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body contains text related to oregano oil, which appears to be a lure to disguise the malicious links. 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://trawallaprimary.com/uploads/1/3/0/5/130551160/9745473.pdf
    • http://jenniferbelphotography.com/uploads/1/3/0/5/130550882/3043728.pdf
    • http://hisglorypropertycare.com/uploads/1/3/0/2/130289244/faef4.pdf
    • http://sun.express-prachka.ru/uploads/2020/01/29/tokesuvugudo_didupesakidif_ranikon_wowevogedes.pdf
    • https://buduzuxosot.weebly.com/uploads/1/3/0/4/130475925/mixoder_kakofumaxuxiwob_puwofisof_nobogijituk.pdf
    • http://circusla.com/uploads/1/3/0/5/130588272/2772280.pdf
    • http://refreshingoasis.org/uploads/1/3/0/2/130287482/kivaf.pdf
    • http://skinstradechat.com/uploads/2020/01/28/3188826.pdf
    • http://zuxekefu.oklkab.ru/uploads/2020/01/29/xebozuzadimum_lawitikuwajix_fedabebuwuliv_lolojoxofodire.pdf
    • http://mufe.clearcaptioner.tech/uploads/2020/01/27/gusususujomabadirage.pdf
    • http://teachermomgaragesale.com/uploads/1/3/0/2/130272432/3fd9b1a.pdf
    • http://oakclass.com/uploads/1/3/0/4/130488312/130488312.html#para+que+sirve+el+aceite+de+or%C3%A9gano

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000137c.bin
b1e5381015ba956226031126b95e980433a935537243b5a255d97a3bb876172f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x137C 9108 bytes
font_01_sfnt_off00006bb8.bin
ee18ffa08420881848c3c0b60f13fdc23bc941ba36492b3f661957ec7c711e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB8 16252 bytes
font_02_sfnt_off000080a7.bin
4190081c84a9d9cd85c37af1630054d73eda37e52187eb3d7ba317b9d2047239		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A7 2596 bytes

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