Malicious PDF — malware analysis report

Static analysis result for SHA-256 1987ea2013746aa3…

MALICIOUS

PDF

48.4 KB Authoring application: SWFTools
MD5: 4872fb7ec61fab174de5ddebf4349a42 SHA-1: fca95cda5463366cb91decc41da371c93cdbd9da SHA-256: 1987ea2013746aa3b301d8de10dbee91f559a6bb9d1c51fc0fc795aff1883904
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. The ClamAV detection and ML classifier strongly indicate maliciousness, likely related to phishing or malware distribution. Although no scripts were extracted, the sheer volume of external links suggests an attempt to redirect users to malicious content or manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://corpsaccess.org/uploads/1/3/0/2/130288431/mekuwibuvefozezater.pdf
    • http://nicol.live/uploads/1/3/0/6/130604556/vabivu-zuxerov-gomuf-fipebo.pdf
    • http://ginkgoliving.net/uploads/1/3/0/2/130270946/3310209.pdf
    • http://appraisalprogroup.com/uploads/1/3/0/2/130288401/3225812.pdf
    • http://jlsroofing.com/uploads/1/3/0/6/130621689/8391194.pdf
    • http://phillysportspassion.com/uploads/1/3/0/4/130488934/8492197.pdf
    • http://2tranquility.com/uploads/1/3/0/6/130621636/2f5d7b251a95a57.pdf
    • http://scanauto.xyz/uploads/2020/01/27/jowolitamumod-jijuket-reruzorujof.pdf
    • http://ketymae.com/uploads/1/3/0/3/130379740/temirinif-tezekigun.pdf
    • http://keith-allred.com/uploads/1/3/0/5/130544898/subewivakegowa-salef-gamumudufegal.pdf
    • http://simplymagicaljewelry.com/uploads/1/3/0/6/130620869/7838358.pdf
    • http://sumner167.com/uploads/1/3/0/5/130539437/solaluzu.pdf
    • http://myrockstarbusiness.weebly.com/uploads/1/3/0/4/130489051/lanaguxirubitu.pdf
    • http://beatbunkr.com/uploads/1/3/0/3/130379117/1041773.pdf
    • http://wisi.nolep-checker.net/uploads/2020/01/28/zidijebef_xenezaramoxal.pdf
    • http://cardinaltranscribing.com/uploads/1/3/0/5/130590153/besidawaxuwofi_moxivoxugog.pdf
    • http://xiz.blogfule.ru/uploads/2020/01/27/taremukusivaj.pdf
    • http://fagumize.rmc-metall.ru/uploads/2020/01/29/belelune.pdf
    • http://tukatas.7artllc.com/uploads/2020/01/27/jadibunox-lotekukavitij-timeroziwutetu.pdf
    • http://xex.find-me-2019.com/uploads/2020/01/28/nadoseloluwomosefo.pdf
    • http://sittingwarrior.com/uploads/1/3/0/5/130547576/8507090.pdf
    • http://pofadd-voicecall.com/uploads/1/3/0/6/130603715/xotezowarebom.pdf
    • http://williamfelts.com/uploads/1/3/0/6/130621131/zojilatumaz_wozoxekoziju_zatuw.pdf
    • http://cyclebavaria.com/uploads/1/3/0/5/130551338/130551338.html#cardinal+wiseman+6th+form+uniform
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000176c.bin
74e46eb0ed37a4fe6b6c7e7047d48738226784f10fd5cd2dddaccad24c33c335
pdf-font-stream PDF embedded font (sfnt) at offset 0x176C 8388 bytes
font_01_sfnt_off00006d4d.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4D 16036 bytes
font_02_sfnt_off00008172.bin
2c32c498f23db3cae400dac070c72b38d41a5d5dbe5041cbe08e7cee44e1acfd
pdf-font-stream PDF embedded font (sfnt) at offset 0x8172 2648 bytes