Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac99606127dd4fbc…

MALICIOUS

PDF

47.5 KB Authoring application: Solid Converter PDF First seen: 2020-09-24
MD5: 5a971bcdda266737622b8f77855891af SHA-1: 4765fa1a9568a86fae93c9e061301dfc70b49a89 SHA-256: ac99606127dd4fbcc33fb250e1a7b375819b20e46d892bfb12a9cf6311f39166
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files. This is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection further supports the malicious nature of the file. No scripts were extracted, limiting the ability to determine specific execution methods.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://waeschemode-roesler.net/uploads/1/3/0/5/130590464/tugakuk_kibuwasofum_pefukula.pdf In PDF document text
    • http://lovetilal.thetracker.online/uploads/2020/01/28/83fdd5713c93.pdfIn PDF document text
    • http://birgitniefanger.weebly.com/uploads/1/3/0/4/130477193/3786917.pdfIn PDF document text
    • http://summeratolg.com/uploads/1/3/0/5/130551621/fejajekejat.pdfIn PDF document text
    • https://tokexotedodem.weebly.com/uploads/1/3/0/5/130543740/kakurosa-tilofapezagile.pdfIn PDF document text
    • https://zumopojis.weebly.com/uploads/1/3/0/3/130313208/55eb5c86d.pdfIn PDF document text
    • http://atlantaareaaeration.com/uploads/1/3/0/4/130488432/5266236.pdfIn PDF document text
    • http://thevidvos.com/uploads/2020/01/29/a5c184969242.pdfIn PDF document text
    • http://tifimufi.tehnobay.com/uploads/2020/01/28/paguzebupowadatixap.pdfIn PDF document text
    • http://mcginnecommconsulting.com/uploads/1/3/0/4/130489072/6721025.pdfIn PDF document text
    • http://texanhomestudy.com/uploads/1/3/0/5/130544547/vusubezuvidudide.pdfIn PDF document text
    • http://sporttihetki.net/uploads/1/3/0/2/130289532/rebogowus.pdfIn PDF document text
    • http://professorstylz.com/uploads/1/3/0/5/130544138/ee0ef88.pdfIn PDF document text
    • http://thestrangefantastic.com/uploads/1/3/0/6/130604494/f5e8d5.pdfIn PDF document text
    • http://greenlandretail.com/uploads/1/3/0/4/130488847/lukafejiz_gasikufa_revubosiluxew.pdfIn PDF document text
    • http://thepinkmews.com/uploads/1/3/0/4/130435902/8669ad25afb8c2.pdfIn PDF document text
    • https://gokuzuxoni.weebly.com/uploads/1/3/0/6/130604632/kutev_vogejemaweg.pdfIn PDF document text
    • https://vowofaka.weebly.com/uploads/1/3/0/4/130483856/terugogex-fukisazurudiwa-tugowo-duxuxekufevim.pdfIn PDF document text
    • http://nikiahseeds.weebly.com/uploads/1/3/0/6/130639347/wudazulomasetexop.pdfIn PDF document text
    • http://buko.epiad.com/uploads/2020/01/29/3236626.pdfIn PDF document text
    • http://zimi.decenturion.wiki/uploads/2020/01/27/7047826.pdfIn PDF document text
    • http://435676578364674396.com/uploads/1/3/0/6/130604218/4165890.pdfIn PDF document text
    • https://janegutuzo.weebly.com/uploads/1/3/0/5/130551130/9948536.pdfIn PDF document text
    • http://k-fprojects.weebly.com/uploads/1/3/0/5/130589345/suvugipisawij.pdfIn PDF document text
    • https://jijirokasosiv.weebly.com/uploads/1/3/0/5/130589384/93cd0fa.pdfIn PDF document text
    • http://paseandoablas.weebly.com/uploads/1/3/0/6/130639664/130639664.html#ghodi+bargi+chaal+video+songIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000017a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17A0 8092 bytes
SHA-256: 14eaa8e93ec47a06f5336741f0db2e92b63d8a6b644e398458007271a669d898
font_01_sfnt_off000061da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DA 1388 bytes
SHA-256: 1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0
font_02_sfnt_off00006a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3F 10888 bytes
SHA-256: 79880894e3daf45e571717135af0f5307ca8a6c707e4fc8318ff55098eaf3c5f

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