Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae016fe2e0f46342…

MALICIOUS

PDF

53.1 KB Created: 2021-03-17 17:31:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b19006c04d30f64c204baada5f455de2 SHA-1: 2aa82d2dd4cd3e0b7b1637aeb6c8604699f0cc62 SHA-256: ae016fe2e0f4634231d8d7a208ea30fb8ed711785ccac813ce52f53281b98d5b
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as a phishing lure due to its small size and image-heavy content, typical of a screenshot designed to hide clickable links. The presence of numerous external URLs, including one pointing to 'xajibur.ru', suggests an attempt to redirect users to malicious sites. ClamAV detection further supports its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6818

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 53 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://xajibur.ru/award?keyword=pathfinder+rpg+bestiary+2+pdf
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    • http://ladekepevij.mygamesonline.org/69106828454.pdf
    • https://sizamuvexiluti.weebly.com/uploads/1/3/4/6/134644091/fusukeze-ruxowavob-leterudakizig-lekatuviko.pdf
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    • https://ff0b3df2-dc61-4aeb-9024-93fa9b5bc175.filesusr.com/ugd/aa14a9_3f2faad2d107459f971915a6b0a3dd97.pdf?index=true
    • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_3eafbaf0f19842868276f77c9c0fb41e.pdf?index=true
    • https://0feddc0e-03bc-46a3-a741-45303deff239.filesusr.com/ugd/6ea6a2_9ebfc5b167f0493b80ed72cdc6393473.pdf?index=true
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    • https://97d49ff2-d914-4ae4-8ac8-5e5cf5f77cad.filesusr.com/ugd/6350c7_6c4bcd899a924ca4b17b146e1fb3b266.pdf?index=true
    • https://ac263381-fdad-4fda-ae78-6df6d71032d6.filesusr.com/ugd/25c42e_31ac54056c98441bb57bec498defa3e9.pdf?index=true
    • http://vigejufad.rf.gd/roland_xp_80_no_sound.pdf
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