Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa2cd47d1a62372…

MALICIOUS

PDF

41.4 KB Created: 2021-03-19 03:43:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 97e5126a319cfa34b98e03905df4b924 SHA-1: 73d7054d322268f6fb0c02ffc6ea0cc48a5477f9 SHA-256: 7fa2cd47d1a623720c1f1165880662fe086ad66bb2aa60a60b2707ec447e21ea
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7297

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://kuzutuzo.ru/aws?utm_term=business+mathematics+and+statistics+b.com+1st+year+pdf+download PDF link annotation
    • https://biwaxosele.weebly.com/uploads/1/3/1/4/131437294/levudorikilet_degulijilawono_givugutarema_raguf.pdfIn PDF document text
    • http://wibetunutivemi.iblogger.org/wubakolewupotijabik.pdfIn PDF document text
    • https://generixa.weebly.com/uploads/1/3/5/3/135350481/papofixaj.pdfIn PDF document text
    • https://ginimowawogob.weebly.com/uploads/1/3/4/7/134753870/doronoromuf.pdfIn PDF document text
    • http://lnstagram-helping-centre.com/sudegegefowmmocn.pdfIn PDF document text
    • http://arbitestpark.xyz/buzzr_tv_channel_schedulekk0wz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491445/normal_5fca99e5b89bd.pdfIn PDF document text
    • http://judafipixomet.iblogger.org/beers_criteria_ags_2020.pdfIn PDF document text
    • https://kixakusafi.weebly.com/uploads/1/3/4/8/134891224/d721958a93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481539/normal_602205a06338c.pdfIn PDF document text
    • https://kizinuraximi.weebly.com/uploads/1/3/4/4/134446503/foputi.pdfIn PDF document text
    • http://prizinsta24.online/nikavoruketam0micd.pdfIn PDF document text
    • http://de-bewertung-id2842384.icu/41240099469or4a7.pdfIn PDF document text
    • https://cdn.sqhk.co/vijukifezu/hgjdghV/12121176274.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474223/normal_5ff71b65848f6.pdfIn PDF document text
    • http://shlifovka-pol.website/takepekunibukipowagobpr2.pdfIn PDF document text
    • https://cdn.sqhk.co/luwiwaduna/hdwyghY/67986920012.pdfIn PDF document text
    • http://jowesokawebape.epizy.com/worogezejadaguweriwetujej.pdfIn PDF document text
    • https://2ed9768e-82a7-41f7-bc91-4b86d8d7aa0f.filesusr.com/ugd/bdbd91_af120945dbdb4bbebb3149d632cb3f34.pdf?index=trueIn PDF document text
    • http://wisigisovet.rf.gd/58816757148.pdfIn PDF document text
    • https://16fd32d6-95e0-4b29-89ad-7162b4f2ffbe.filesusr.com/ugd/9f4b57_a7382723c37245c580befcdf7c14fb58.pdf?index=trueIn PDF document text
    • http://wilafeduzavedew.epizy.com/nds_boy_emulator_apk.pdfIn PDF document text
    • https://3c45aaf8-24f3-4cde-9773-cf44a0a970d3.filesusr.com/ugd/ae7d54_5924b89c34e54fa5b59973b96a1bc9e8.pdf?index=trueIn PDF document text
    • https://78636f1b-f2d6-4e4a-b4e1-07eac4c165d1.filesusr.com/ugd/434c97_62752d8ae2aa4690b3e9305f6699b552.pdf?index=trueIn PDF document text

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