Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80bcffff8c29cd5…

MALICIOUS

PDF

94.3 KB Created: 2020-11-26 05:17:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 16b039727482b200b37121b237264117 SHA-1: 821d72658bcb86d682745a7fd3432ba81208ce31 SHA-256: f80bcffff8c29cd5a00dee28db7c703c5320ca8bb309ff4554d8a4933c03f531
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'trafficel.ru' suggests a phishing or malware distribution attempt. The heuristic 'SE_URGENCY_LURE' indicates the document likely uses deceptive language to prompt user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://trafficel.ru/strik?utm_term=solar+powered+pumpkins PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450044/normal_5fb48e8cd2fcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487423/normal_5fbc5f52e292f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382209/normal_5fb96efa280a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474222/normal_5fa511a0d35d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374013/normal_5f9f7df622af5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401505/normal_5fa7423a11e7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366984/normal_5f8e94ff48230.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/world_of_warcraft_enhancement_shaman_leveling_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e585dae-1fcd-42c6-b331-a2e0bb1787cc/3967440667.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c35a811-a483-41a3-80fa-79b5518ac95a/jorokepopurodijanunukowow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0895e7b-eada-41eb-9c9a-fd5ab1f83aea/gigadupixebomus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c34638d-4933-46f8-b6b7-3ff688d9f4b2/no_mercy_mods_rom.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f57e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF57E 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off00010541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10541 2888 bytes
SHA-256: 6f2a6df54add4989ddb944bf337afdbe14cfe9709f41fdb3d2996e2e7fab70a8
font_02_sfnt_off00010f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F85 5364 bytes
SHA-256: 71275cacf7bd6d36763f6ceb89289b1c7b8830d3e6e6197674eefe93fc6ee0cc
font_03_sfnt_off000121b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121B5 2728 bytes
SHA-256: f2a0f140d7fbbfdf5a459b9f0f47bad0f80c34554e0399a28ef661b5f0e7f32e
font_04_sfnt_off00012db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DB2 11240 bytes
SHA-256: b91faacd0707153ed458c7ba5c339e521fcbcd8a75041cb0a673f278c95070a1
font_05_sfnt_off000153ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153FF 16096 bytes
SHA-256: 010fedfb0e8455d497fb8a6767d0ed7089474232cfc9291a6c65c70cfd9a5baa

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