Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02d0c2d04bb945e…

MALICIOUS

PDF

61.0 KB Created: 2021-04-14 11:15:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e775ee12e1d31a53ed78d42cb82cf844 SHA-1: fb4c1a97df0aad85710fbb632a816c1cf5d83ed5 SHA-256: a02d0c2d04bb945eef1f9c4d0fee9be02c42fbda3e402c14962c5a48bd2e242d
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, one of which is a feedproxy URL that appears to be a lure. The document body, though heavily obfuscated, suggests a deceptive title, reinforcing the phishing pretext. No scripts were extracted, but the presence of embedded URLs and the malware detection strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8124

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://www.osgeurope.com/sites/osg-corporate.dev/files/webform/10654010608.pdf
    • https://ambrose.edu/sites/default/files/webform/93854264345.pdf
    • https://ambrose.edu/sites/default/files/webform/sudelo.pdf
    • http://klm3fg.grhosting.cz/sites/default/files/webform/files/todoxobolukajit.pdf
    • https://www.mothercare.ro/sites/default/files/webform/resumes/jilagofuzepev.pdf
    • https://grossenbacher.co.nz/en/system/files/avoidance-training-certificates/pidefukil.pdf
    • http://cicatsalud.com/html/sites/default/files/webform/17654710786.pdf
    • http://cicatsalud.com/html/sites/default/files/webform/dizage.pdf
    • https://ambrose.edu/sites/default/files/webform/58588935603.pdf
    • http://www.pbttphtk.gov.my/sites/default/files/webform/74795851198.pdf
    • https://ambrose.edu/sites/default/files/webform/11364316539.pdf
    • http://www.pbttphtk.gov.my/sites/default/files/webform/31626011693.pdf
    • https://www.jsif.org/sites/default/files/webform/54250685962.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=que+pobres+tan+ricos+capitulos+compl
    • https://printandmail.princeton.edu/system/files/webform/85064040694.pdf
    • https://community.princeton.edu/system/files/webform/13590028771.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7c5.bin
f1622170c248306b1005cc44acd14673ec96ee42b3743a9c1e834e989e378ee4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C5 5280 bytes

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