Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad76f7d004c19c7…

MALICIOUS

PDF

82.7 KB Created: 2020-12-18 10:05:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 0f9d441aa58384673ee782b6c9bcca9f SHA-1: 9dd58fee437a12370ad706606e98600c92d6c095 SHA-256: 8ad76f7d004c19c710e4f44d4edbe2a17148870ad64d01f7b675dbf9d4a08188
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to a "Chariot cougar 2 manual" and an embedded URI pointing to a suspicious domain. This suggests a phishing or social engineering attack aimed at tricking the user into visiting the malicious URL.

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://trafficel.ru/strik?utm_term=chariot+cougar+2+manual PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.orgThisIn PDF document text
    • https://uploads.strikinglycdn.com/files/40a5cd3f-edf2-487f-980d-9c3c1a8e9d4a/nubibefesojuluwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae808c1d-6666-45fd-b64f-74c067b64200/watch_chopped_online.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/resisajevuloruzubope.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9735a9be-356d-4985-b6c0-216aeb12e827/where_to_buy_por_15_fuel_tank_sealer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d85de1c6-21bb-4d72-831c-7136a9dd9bd3/paradise_kennels_nl.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/commerce_city_kush_smoke_report.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/streaming_tv_guide_directv_now.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/83192418589.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79f73b0f-5175-4c61-9bfa-db1cab26c4d0/75281412228.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/xuwegasezugaxaxor.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b6c78787e8798971b212/t/5fc7f9fe6ff1704bbbc2aa94/1606941196208/yamgun_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a693f41b-d0d9-4c34-ad41-418b434faf43/raxerogorujifi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc67957ec917750a3fde254/t/5fd72db23ebe04163179961d/1607937459132/shipwrecked_vbs_games.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
    • http://scripts.sil.org/In PDF document text
    • http://scripts.sil.org/OFLAbyssinicaIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC32 5072 bytes
SHA-256: e341875749c98a9080180c0b2e5475c67bab10f0350e2e544438152817bc06dc
font_01_sfnt_off0000ed43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED43 21552 bytes
SHA-256: 4e24c3f8f68ed7d04fa5b441b5abcb00ed8e4597c0c9d83a2cba1c3e75665e3c
font_02_sfnt_off00010ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EBD 2048 bytes
SHA-256: e6288a8b3c5ceab98dbfeb43f9498ec0cd1af6bc72dea1fb7e7969938b35b09f
font_03_sfnt_off000117a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117A4 10976 bytes
SHA-256: 81731e54ff77afe38e688b0d99e2e216c97e4d6bcfb3bed27454004e36264a29

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