Malicious PDF — malware analysis report

Static analysis result for SHA-256 966a8d4fcc0a6bae…

MALICIOUS

PDF

44.4 KB Authoring application: Scribus
MD5: 31d7d654e5d7fa24d9d1e4de91d2748c SHA-1: e78715d1693fe309f6b7256adacf66b0d3816f88 SHA-256: 966a8d4fcc0a6bae3650b060a49ce923b080526c78f68b555ff9ef875eea7d76
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also indicate maliciousness. The embedded URLs are likely used to redirect users to malicious sites or to distribute further malware. No scripts were extracted from this sample.

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://www.carenetofharnett.org/uploads/1/3/0/6/130639766/8624557.pdf
    • http://nikkirelford.com/uploads/1/3/0/4/130476974/7824883.pdf
    • http://kumfsteez.com/uploads/1/3/0/5/130589261/zebufudatatibup.pdf
    • http://www.sawsoundengineer.com/uploads/1/3/0/5/130551427/golise_rogodazanaga.pdf
    • http://california-state-roleplay.com/uploads/1/3/0/6/130622048/dojojav.pdf
    • http://gladiatorfs.com/uploads/1/3/0/6/130639121/1944604.pdf
    • http://dcexploration.net/uploads/1/3/0/6/130639396/81524b4cf160.pdf
    • http://cpanel.lemonade-uk.com/uploads/1/3/0/2/130274330/zaxubevo_sazul.pdf
    • http://dram.media/uploads/1/3/0/4/130488779/65d24ab984.pdf
    • http://corvidaewines.com/uploads/1/3/0/6/130620942/8986793.pdf
    • http://hostmaster.plvacuum.uk/uploads/1/3/0/6/130604288/vasirerosej.pdf
    • http://campdejourhockeydemortagne.com/uploads/1/3/0/7/130776474/1a7dd8414.pdf
    • http://oshey.space/uploads/1/3/0/5/130539260/fefab3.pdf
    • http://rmckendreeb.com/uploads/1/3/0/7/130775395/kavunavezaso-lixunuvod-sefebidizew-rewixo.pdf
    • http://livemedia.nl/uploads/1/3/0/7/130740265/6759548.pdf
    • http://letuscallforyou.com/uploads/1/3/0/2/130273738/tixafof.pdf
    • http://selvesgroup.com/uploads/1/3/0/5/130551623/rovaraloti.pdf
    • http://rightlinc.org/uploads/1/3/0/5/130588809/zemene.pdf
    • http://flatpackassembly.biz/uploads/1/3/0/6/130621702/kogit.pdf
    • http://www.coniferarts.com/uploads/1/3/0/2/130272290/xumomobeguja_besurul_waxapo_wogasozubid.pdf
    • http://kathyfitzsimmonsart.com/uploads/1/3/0/2/130270982/278634.pdf
    • http://riceblack.com/uploads/1/3/0/4/130435509/9443709.pdf
    • http://www.thesimplestinstructions.com/uploads/1/3/0/7/130740387/xixufejuzok.pdf
    • http://www.adventure-academy.ca/uploads/1/3/0/7/130739927/1648441.pdf
    • http://www.mykawaiilens.com/uploads/1/3/0/2/130289803/sawupepodage.pdf
    • http://destinationcelebrationtravel.voyagerwebsites.com/uploads/1/3/0/6/130621592/130621592.html#esl+grammar+games+and+activities
    • http://dcexploration.net/uploads/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a27.bin
1cfcbff356662d9d5142c5e6d1d47ad749073b70dbd6e7eda837379460b397d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A27 7632 bytes

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