Malicious PDF — malware analysis report

Static analysis result for SHA-256 362d6ab250468dff…

MALICIOUS

PDF

42.3 KB Authoring application: PDF Studio
MD5: a4cc221acd81a4788544cf99321dc0c6 SHA-1: 2977c9e5364d690021efbe1f0cec86700994f710 SHA-256: 362d6ab250468dff78ab8e25af2d7b1cd693817c730f4c9358ed44f0ba541fb9
150 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, identified by the PDF_SEO_LINK_FARM heuristic, which is a common technique for SEO manipulation or distributing malicious payloads. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded links likely serve as a lure or a method to redirect users to further malicious content.

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 http://mid-atlanticmountainworks.com/uploads/1/3/0/6/130604749/bufod.pdf
    • http://charity-parties.com/uploads/1/3/0/4/130483408/e2aa6f.pdf
    • http://4peggy.com/uploads/1/3/0/5/130589411/puzutabufezi.pdf
    • http://kresadmissions.com/uploads/1/3/0/6/130622012/favuleteb.pdf
    • https://forozamasemu.weebly.com/uploads/1/3/0/3/130313105/tajewuzuxur.pdf
    • http://kazahstan-kepy.fun/uploads/2020/01/28/pogotuxexarap-jovubu-kitijilusamo.pdf
    • http://naderafzalan.com/uploads/1/3/0/4/130483253/2218fa3b.pdf
    • http://edutainmint.com/uploads/1/3/0/6/130639532/liduri-pasagujazev-nupexezep-lapinufosilux.pdf
    • http://politicizingbeyonce.com/uploads/1/3/0/4/130435532/mukikavew.pdf
    • http://millhouseconsultants.com/uploads/1/3/0/5/130551124/66502.pdf
    • http://democrathollow.com/uploads/1/3/0/6/130639307/timezotuji.pdf
    • http://staceylytle.com/uploads/1/3/0/6/130604251/vokowarupiwofa.pdf
    • http://ofa-ko.org/uploads/1/3/0/6/130604168/binudubu.pdf
    • http://prosamoe.ru/uploads/2020/01/29/wakemamuf.pdf
    • http://banevim.gamefreeplus.ru/uploads/2020/01/27/47f99ea66ee99.pdf
    • http://northernbeacheshousewash.com/uploads/1/3/0/6/130639747/domataweri-rusus.pdf
    • https://xaletogu.weebly.com/uploads/1/3/0/3/130323424/zokaga-navedubozororup-mejesisetamufo-gusolovoxi.pdf
    • http://aratikreibich.com/uploads/1/3/0/6/130603865/warovinulamedil.pdf
    • http://sgdpress.com/uploads/1/3/0/6/130620604/333024.pdf
    • http://shopcenter11.fun/uploads/2020/01/27/zojakaraxofozit-gojogikira-dokifejekami-majizijapok.pdf
    • http://carpetcleancary.com/uploads/1/3/0/3/130379517/130379517.html#presenteeism+health+definition

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015f4.bin
04c98a8904f1a2d0e815bc768f5a21067252a8524d7bd133701277a9b1a685bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F4 8060 bytes

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