Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e0399ab149e5cd7…

MALICIOUS

PDF

88.8 KB Created: 2021-03-27 10:04:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 0a51cd9fda7db5abdfcf5ef71f38d3a4 SHA-1: 84f103f4bdc07aef0a90e528d16e82e87fddc10d SHA-256: 6e0399ab149e5cd75cb890cb887a072ad828b20909d839f6c5e1f597043f506c
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, 'jacksth.ru', which is likely used for phishing or to serve a malicious payload. The document body, though heavily obfuscated, suggests a lure related to technical fabrication processes to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/award?keyword=photolithography+process+in+ic+fabrication+pdf PDF link annotation
    • https://cdn.sqhk.co/zimuteraf/jiNjfhb/42055911213.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/iRih77C/votufimidorimatenubag.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/tiduro/circular_economy_eu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6c4160e-4e19-486a-97a4-5413e1ef375a/diwazopegi.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/aristotle_poetics_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/847190bd-dd6c-4896-9120-88eb60908fa9/pidakelofijewokawagesivel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d64026c-be9a-432f-95c9-501d9b757821/gukam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0c33206-7807-4d3d-81d7-3e1448b6b70a/95959052805.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/galenivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf2792ec-280b-49aa-bb7c-59c727e677c0/hype_active_gear_bluetooth_earbuds.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/rakivikuloravikojim.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/jamusobifudotakuzevut.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/85817940793.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/arris_tg862g_modem_speed.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/sudokese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68be836f-eed1-497a-8d06-b91d1f4ed3e8/74530493538.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/downingtown_weather_report.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_off00011d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D7A 5660 bytes
SHA-256: 429cad8ee8051cb09c0db5c36d5ab552580a121f5eb0a037ba58ea5a4b4846b7
font_01_sfnt_off000130b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130B7 10804 bytes
SHA-256: cfd405a996fcd4f9beabf5af84e33a6fdc7acfd2b51e849fcf3eb70c51433575

Open this report in the interactive analyzer, or submit your own file for analysis.