Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbe4a9c723a5e7af…

MALICIOUS

PDF

65.3 KB Created: 2021-06-08 06:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bb091d3db98143ef0a6df14547574c89 SHA-1: 6befef89af9e801e59dc26c3468796d71ef75554 SHA-256: dbe4a9c723a5e7afaebb4c3c4f18f2a8da543fed0deed80cd55a25a9dc108d57
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8428

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://pistant.ru/pbw?utm_term=taotronics+usb+barcode+scanner+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447464/normal_604645cf9ea3a.pdfIn PDF document text
    • https://maninuwag.weebly.com/uploads/1/3/4/5/134577581/goxuv-pefoz-gopono-dazokunujum.pdfIn PDF document text
    • https://pobogovowot.weebly.com/uploads/1/3/5/3/135323888/zewezikige.pdfIn PDF document text
    • https://fujinimozebuxe.weebly.com/uploads/1/3/0/7/130738673/ruloxegapo.pdfIn PDF document text
    • https://warasogufav.weebly.com/uploads/1/3/4/4/134440103/vinifelamijamefe.pdfIn PDF document text
    • https://gazukevofuw.weebly.com/uploads/1/3/4/5/134597640/pigivotejorerud_ginapuw_tolemomitokuw.pdfIn PDF document text
    • https://zonepebitebebo.weebly.com/uploads/1/3/4/3/134369254/48706d274da7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450419/normal_5fdcfa6d203fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459780/normal_6005aef025978.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367922/normal_5fe637c2818d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445103/normal_6056e49438881.pdfIn PDF document text
    • https://jozeturibunoza.weebly.com/uploads/1/3/4/4/134491641/muviwejajas_sobosiwazokig_sakafidoluxigi.pdfIn PDF document text
    • https://nifavoweju.weebly.com/uploads/1/3/0/7/130739528/jomeluwawenizu.pdfIn PDF document text
    • https://ponuwusareti.weebly.com/uploads/1/3/1/6/131636782/8654410.pdfIn PDF document text
    • https://xudufuzed.weebly.com/uploads/1/3/0/8/130815664/vapabefiruvo-kuxukopavizut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://furalagaposu.pbworks.com/w/file/fetch/144567363/50011799359.pdfIn PDF document text
    • http://jizakatum.pbworks.com/f/el_anillo_de_salomn_libro.pdfIn PDF document text
    • http://ririgifavem.pbworks.com/w/file/fetch/144706857/89606053339.pdfIn PDF document text
    • http://bekojifutok.pbworks.com/w/file/fetch/144785901/lusugutexaruburuj.pdfIn PDF document text
    • http://fisojun.pbworks.com/w/file/fetch/144821862/4643798141.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE259 5176 bytes
SHA-256: daf73408e1faa2374e4fb8c06cdddc6d4a79ae73045b7e96ac467573da4d256c

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