Malicious PDF — malware analysis report

Static analysis result for SHA-256 322b7fbff1cf8502…

MALICIOUS

PDF

191.5 KB Created: 2021-02-26 03:18:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: b3749bf2ae3b2f22a39b89c6eee690a4 SHA-1: c7a2ba1dbf11ba9baf0d0487c3a41c59feb3f615 SHA-256: 322b7fbff1cf8502c9c9ef6ca387b790247b7a842a08305e89228b72c0a5509b
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ML classifiers and ClamAV, indicating a phishing attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a malicious website. The document body, though heavily obfuscated, contains text that could be interpreted as a lure for an award.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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
  • 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://bologen.ru/award?keyword=holy+koran+circle+7+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477877/normal_60223ed3b0ff6.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/65967771343.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496582/normal_5ffbb3b0cdf74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378390/normal_5fd1ef32a75f6.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/honeywell_pro_8000_thermostat_installation_guide.pdfIn PDF document text
    • https://vulemozebo.weebly.com/uploads/1/3/4/6/134693025/ritibaposapu-mowovamadod-fugurulime.pdfIn PDF document text
    • http://bodaweziwov.mypressonline.com/2012_jeep_grand_cherokee_srt_recalls.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418557/normal_5ff42eb7d8698.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/ge_6_device_universal_remote_codes_cl4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485163/normal_5fffa1106f612.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426408/normal_60035dc6d6ee5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kutepiguzusudax.epizy.com/17392391506.pdfIn PDF document text
    • http://fedasumenusum.rf.gd/nedive.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002bab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAB9 5180 bytes
SHA-256: 4a40cdd563bc1060cd884b01ab37ce8780c3195863d70d3b6e990ac49b4631af
font_01_sfnt_off0002cc7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC7B 10504 bytes
SHA-256: e30aec728193817b36cd918d4121c61f4013628b34da4276419aa25e67033aa0