Malicious PDF — malware analysis report

Static analysis result for SHA-256 b42f5706f1411782…

MALICIOUS

PDF

38.3 KB Authoring application: Solid Converter PDF First seen: 2020-07-24
MD5: 921ad647cecd7a0932b454453916db88 SHA-1: 8ef89966e605f5c3e7ece97d29c3c6a300b62ebd SHA-256: b42f5706f1411782846de0f10c9cafc74a18e13540dd756beffd057192856814
192 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. These URLs point to various external PDF files, suggesting a link farm or a method to distribute malicious content. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://webdisk.creativevisionhome.com/uploads/1/3/0/5/130589033/794b8bc7d86e6.pdf In PDF document text
    • http://realtimecases.net/uploads/1/3/0/2/130270776/3392390.pdfIn PDF document text
    • http://freethought.com/uploads/1/3/0/5/130539035/123baa716.pdfIn PDF document text
    • http://mirrorimagemissions.com/uploads/1/3/0/5/130538922/8318486.pdfIn PDF document text
    • http://aspire.ejrp.org/uploads/1/3/0/3/130379821/pimolorajavaresami.pdfIn PDF document text
    • http://jayexner.com/uploads/1/3/0/6/130604181/48e2ca.pdfIn PDF document text
    • http://rasmussenconsultinggroup.com/uploads/1/3/0/9/130969004/2830767.pdfIn PDF document text
    • http://wsdcdebate.com/uploads/1/3/0/6/130639590/5633445.pdfIn PDF document text
    • http://seatfm.com/uploads/1/3/0/2/130272233/7650780.pdfIn PDF document text
    • http://theartistghost.com/uploads/1/3/0/6/130604546/fezapowipon.pdfIn PDF document text
    • http://victimswanted.com/uploads/1/3/0/8/130874114/8114703.pdfIn PDF document text
    • http://applicationpromoter.com/uploads/1/3/0/7/130740387/841761.pdfIn PDF document text
    • http://welcometothehouseofsewingandcrocheting.com/uploads/1/3/0/4/130436288/b2b49b.pdfIn PDF document text
    • http://cristawadsworth.com/uploads/1/3/0/5/130589124/batawoxoj_wibiluwurena_kilunimazile.pdfIn PDF document text
    • http://thelegodocumentary.com/uploads/1/3/0/7/130775563/2689477.pdfIn PDF document text
    • http://afforablehomesociety.com/uploads/1/3/0/6/130639400/zimelavur.pdfIn PDF document text
    • http://nowhitmoreorless.com/uploads/1/3/0/7/130739303/nidukila_kaxamotogajif.pdfIn PDF document text
    • http://mx.6433creative.com/uploads/1/3/0/4/130435581/202c964d7.pdfIn PDF document text
    • http://winesbymina.com/uploads/1/3/0/3/130379379/5b523c5964a11f.pdfIn PDF document text
    • http://yaamardance.com/uploads/1/3/0/3/130323291/laxapuxoturen_nomagikukoxe_repodadorixunex_damiguleba.pdfIn PDF document text
    • http://splitnest.com/uploads/1/3/0/5/130539244/d53ec53aeab007e.pdfIn PDF document text
    • http://theinstituteformeditationstudies.com/uploads/1/3/0/6/130604377/698826.pdfIn PDF document text
    • http://dangerouslycollaborative.com/uploads/1/3/0/4/130483909/tekobetemi_nemuleriko_zavomiz.pdfIn PDF document text
    • http://arvplumbing.com.au/uploads/1/3/0/4/130476563/xubivowuwurunuz_watul_jipagonovo_fapakolaniwok.pdfIn PDF document text
    • http://adriannesblends.com/uploads/1/3/0/5/130550901/famidegovesazinif.pdfIn PDF document text
    • http://www.windows-defender.com/uploads/1/3/0/8/130813650/130813650.html#buku+akuntansi+manufaktur+kelas+12+pdfIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3287 7348 bytes
SHA-256: 6ce5c5ce7dacd65285b916939a299859db852cf5e5922795b541a3b09701128a

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