Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fcf081becfe81a3…

MALICIOUS

PDF

37.4 KB Authoring application: PDF Studio
MD5: ba6ebc99c4a16af30bfbea9cd8f68811 SHA-1: 957622ba786a487e514d6cd0528a2b8d249be460 SHA-256: 7fcf081becfe81a360d631a0420edf0cc7b91a70cc30ec8decb448449727719f
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall-7605656-0.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ablehorsewomanship.com/uploads/1/3/0/5/130552034/6321844.pdf
    • http://thearchitecturalgardendigest.com/uploads/1/3/0/3/130323167/5667263.pdf
    • http://usdaum.one/uploads/1/3/0/7/130775679/4976e08c04.pdf
    • http://musiowskyed.com/uploads/1/3/0/7/130775760/nexeb-sijepitix.pdf
    • http://cascadesoft.net/uploads/1/3/0/7/130739233/e3c624b46558406.pdf
    • https://pepudenonibasi.weebly.com/uploads/1/3/0/4/130476298/6214696.pdf
    • http://mynkylc.com/uploads/1/3/0/3/130313536/zoderupuguxos.pdf
    • http://rheacafeandgrill.com/uploads/1/3/0/2/130271111/gimulijogajatif_gowin_wunibafav_gadiwev.pdf
    • http://tattoovictoriatexas.com/uploads/1/3/0/5/130588533/biruduzigixuzusagaf.pdf
    • http://aniltanriverdi.com/uploads/1/3/0/4/130488547/kalofaravepota.pdf
    • http://ethansanderlin.com/uploads/1/3/0/5/130588948/vuvelifelekuwunini.pdf
    • http://welcomehomeveteransusa.org/uploads/1/3/0/6/130604798/bizavo-fuwogejakavafe-jibasu-piturupepatibe.pdf
    • http://nghomeimprovment.com/uploads/1/3/0/5/130539034/zikememivex-bawibe.pdf
    • http://de.jwoc.de/uploads/1/3/0/5/130589099/e9d92.pdf
    • http://millerdriscollrenovations.weebly.com/uploads/1/3/0/4/130483244/nodepozo.pdf
    • http://cairnsclassictours.com/uploads/1/3/0/2/130289756/biduziluxamevez-lekurinululo-xisalatufezogaw-ruxir.pdf
    • http://nathanchizenreviews.com/uploads/1/3/0/7/130738650/5771568.pdf
    • http://lekow.clash-x.space/uploads/2020/01/29/xatadijewivifokil.pdf
    • http://buddy-burner.com/uploads/1/3/0/2/130289711/4942968.pdf
    • http://swietkowskilaw.com/uploads/1/3/0/4/130436147/a8f0448405.pdf
    • http://abetamassage.com/uploads/1/3/0/6/130604220/zuwijugof_kaporor_muwalaketewe.pdf
    • http://juliablack.net/uploads/1/3/0/3/130323510/lakuguvomasi.pdf
    • http://adeptwebsolutions.com.au/uploads/1/3/0/3/130313632/vemaromokipisefe.pdf
    • http://nswminiaturepony.com.au/uploads/1/3/0/2/130288661/7753151.pdf
    • http://chuyitos.com/uploads/1/3/0/5/130588885/130588885.html#explain+noun+clause+as+subject+and+object

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f7e.bin
d069355dd48ee15d4a2ef8e501105a9c0293c874222cfff2d2314447595fcb54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7E 7448 bytes

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