Malicious PDF — malware analysis report

Static analysis result for SHA-256 d51b6213b3622990…

MALICIOUS

PDF

88.3 KB Authoring application: Pdftk First seen: 2020-09-24
MD5: 48b89260591b4f5bd74ef57acfad561d SHA-1: 09437aa37035c4b0efe2ccc98a222fb27fba91a0 SHA-256: d51b6213b36229908f0d25cfb84175459a2186cd0d6cf6f855552182c3ff8449
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute phishing content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious traffic redirection intent. No scripts were extracted from this sample, and the document body was heavily obfuscated and truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vez.portal-doempreendedordigital.com/uploads/2020/01/27/xugagon_boxode_diritoworo_zixuteb.pdf In PDF document text
    • http://xoglamaccess.com/uploads/1/3/0/4/130477566/mawufexudofade_bapanobu_guguvopara.pdfIn PDF document text
    • http://myrocketflow.com/uploads/1/3/0/4/130490006/398324361c170.pdfIn PDF document text
    • https://tijomodu.weebly.com/uploads/1/3/0/3/130379105/26af709060.pdfIn PDF document text
    • http://mujekomuvi.malka-cc.com/uploads/2020/01/27/fodolibalamat.pdfIn PDF document text
    • http://brookeholden.com/uploads/1/3/0/5/130588595/5964819.pdfIn PDF document text
    • http://msportsix.com/uploads/1/3/0/5/130588775/eadf008.pdfIn PDF document text
    • https://nutejenubexejaf.weebly.com/uploads/1/3/0/2/130289154/160657.pdfIn PDF document text
    • https://jupedisa.weebly.com/uploads/1/3/0/5/130541763/9619067.pdfIn PDF document text
    • http://gritnursingreview.ca/uploads/1/3/0/5/130551258/vefonokabop-vowedawaxoki-jajotulexerod-jolebusemuwas.pdfIn PDF document text
    • http://mil-algorithm.com/uploads/2020/01/28/lulezije.pdfIn PDF document text
    • http://advicelogic.net/uploads/1/3/0/2/130274322/konud.pdfIn PDF document text
    • http://kbp-wichita.com/uploads/1/3/0/6/130604428/xiwev_wasut.pdfIn PDF document text
    • http://addaihealthedu.net/uploads/1/3/0/2/130288419/wadun-xosufesipa.pdfIn PDF document text
    • http://kpeggphoto.com/uploads/1/3/0/4/130483868/jafimuja.pdfIn PDF document text
    • http://filmliteracyeurope.org/uploads/1/3/0/3/130313046/7585149.pdfIn PDF document text
    • http://degosidu.netto-tc.ru/uploads/2020/01/27/8995146.pdfIn PDF document text
    • http://gbwbathsponges.com/uploads/1/3/0/3/130313284/9d9a3d7.pdfIn PDF document text
    • http://jioulian.com/uploads/1/3/0/4/130483587/d4c5f823f5085c.pdfIn PDF document text
    • http://bardswine.com/uploads/1/3/0/2/130288317/39710.pdfIn PDF document text
    • http://bowo.faithmirror.com/uploads/2020/01/29/gifewo_rususunatune_vadosenekep_delunubez.pdfIn PDF document text
    • http://brittanygrahamrealestate.com/uploads/1/3/0/5/130551129/womusoze.pdfIn PDF document text
    • http://newperspectivemedical.com/uploads/1/3/0/2/130274258/130274258.html#edzie+varskvlavi+sheniIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1367 7356 bytes
SHA-256: a00c7e0850e8967ea92c5b7ee16f4ddfe0586958c65f19d5daaa8af1e7b59039
font_01_sfnt_off0001085f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1085F 19980 bytes
SHA-256: 51a158895e300be189c3e93e3e06c6dba20083732fc819e976afdd1d73bc806b

Open this report in the interactive analyzer, or submit your own file for analysis.