Malicious PDF — malware analysis report

Static analysis result for SHA-256 adb2cd869aa28de1…

MALICIOUS

PDF

62.7 KB Created: 2021-04-07 03:55:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93f6b8741a25926e054c9c25b4f1922f SHA-1: a9ad12d6f16b325cfcc2d3975f6c8ed3844f5f6e SHA-256: adb2cd869aa28de157650a9a3f40c18f88136f4fbd80175d0726b7e231595193
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. The heuristic 'PDF_IMAGE_LURE' indicates it presents as an image-only document with an action trigger, designed to deceive users into clicking embedded links. The presence of numerous external links, including 'https://baarspo.ru/award?keyword=ethnic+conflict+in+south+sudan+pdf', suggests a link farm or redirection mechanism for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7441

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=ethnic+conflict+in+south+sudan+pdf
    • https://giwuvapelefawi.weebly.com/uploads/1/3/4/8/134869604/bagigikovituruw-nadapejiwepan-sanifesuwumal-gomewexevowup.pdf
    • https://pakefipeve.weebly.com/uploads/1/3/4/0/134017053/47e34add3.pdf
    • https://pevidutapare.weebly.com/uploads/1/3/0/7/130740538/webigager.pdf
    • https://favipipuwebex.weebly.com/uploads/1/3/5/3/135397367/xojumasob-kusibir.pdf
    • https://lovepugijojuz.weebly.com/uploads/1/3/4/6/134672364/adebc079781a.pdf
    • https://welukixavise.weebly.com/uploads/1/3/1/0/131069839/golukofuna.pdf
    • https://cdn-cms.f-static.net/uploads/4369141/normal_6053833716648.pdf
    • http://groshyk.site/casio_g_shock_5146_ga_110c_manualonupn.pdf
    • https://static.s123-cdn-static.com/uploads/4459787/normal_5ff1af1c3ffa3.pdf
    • https://dobopekajami.weebly.com/uploads/1/3/4/3/134314215/vimosejimi_juzusixu.pdf
    • https://golurivuj.weebly.com/uploads/1/3/4/7/134744385/dizinoluvesewisaxite.pdf
    • http://hugertely.xyz/sas_ods_font_sizeh1qa6.pdf
    • https://cdn-cms.f-static.net/uploads/4403954/normal_60660793e1e84.pdf
    • https://gelasapatawo.weebly.com/uploads/1/3/0/8/130874371/9684208.pdf
    • http://pepebejawu.epizy.com/hp_laserjet_pro_400_m401dne_service_manual.pdf
    • http://dazigeles.rf.gd/managementstudyguide_motivation_incentives.pdf
    • https://c3d762b3-5d50-4891-ab6d-43710edd2423.filesusr.com/ugd/3254bf_bd8d8ba91f96436f93fd209e631c76c1.pdf?index=true
    • https://8316a071-1c81-4729-bbc9-bb84f51c1359.filesusr.com/ugd/b2ba6b_58e19579bc2348e9ab2f17d5b8254abc.pdf?index=true

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