Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f1a2dc1d207850…

MALICIOUS

PDF

62.7 KB Created: 2021-03-29 19:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90ef6718777b551e74a51aee26f3f147 SHA-1: ff0c5b909b372921b37129c7479978c5db93b986 SHA-256: 82f1a2dc1d20785056d12c29dffcc220bdce00c49b557ad8b58202011d01773c
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and a clickable action triggering an external URL. The document body contains text that appears to be a lure for 'Brahmin gotra pdf', directing users to a suspicious URL. The presence of numerous external links, many pointing to PDF files hosted on free web hosting services, further supports the phishing and potential malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7471

Heuristics 5

  • 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.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 62 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://baarspo.ru/award?keyword=brahmin+gotra+pdf
    • http://lufesemi.iblogger.org/77425991546.pdf
    • https://wirimodarezekas.weebly.com/uploads/1/3/5/3/135314182/813257.pdf
    • http://wide-do.top/laruberuxedokifalolevijcfmln.pdf
    • http://1xbets-regs.site/how_to_windows_steam_on_mace3euy.pdf
    • https://cdn-cms.f-static.net/uploads/4366048/normal_60334c2413170.pdf
    • https://vaxuzumop.weebly.com/uploads/1/3/4/8/134870956/zudidek-fupefawig.pdf
    • https://static.s123-cdn-static.com/uploads/4393632/normal_5fe49f9cb8ece.pdf
    • http://zonodejizifiti.iblogger.org/ct_trang_nh_th_no.pdf
    • https://cdn-cms.f-static.net/uploads/4448558/normal_601b43101c4b6.pdf
    • http://xedovafimolodem.epizy.com/21696064499.pdf
    • http://lumawasisoxo.rf.gd/75646595732.pdf
    • https://s3.amazonaws.com/supefujoxopubu/dsc_impassa_installation.pdf
    • https://s3.amazonaws.com/jizubisetebof/tomagagu.pdf
    • http://nowaginog.epizy.com/gixevi.pdf
    • https://s3.amazonaws.com/kewakuko/zimiwi.pdf
    • https://s3.amazonaws.com/senodiw/hello_caller_id_apkpure.pdf
    • https://s3.amazonaws.com/kulinisokakewi/mekulimevogamijet.pdf
    • https://s3.amazonaws.com/jivagajamav/fractions_math_worksheets_free_5th_grade.pdf
    • https://s3.amazonaws.com/baposivarabuj/lalaborodosilim.pdf

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