Malicious PDF — malware analysis report

Static analysis result for SHA-256 089ad9a89de57f4b…

MALICIOUS

PDF

73.1 KB Created: 2021-01-20 08:06:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e2c0a21e469a7bfa0c0e8dd70990dd12 SHA-1: eb4c14736d00d5a606a5715188b0389909b43867 SHA-256: 089ad9a89de57f4b0f157374d027ddeb06d6d25e3c366fffbd241780214caba3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as a phishing trojan. The document body, though heavily obfuscated, appears to be related to search terms, suggesting a phishing lure. The presence of multiple embedded URLs further supports the phishing attack pattern.

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://maypoin.ru/123?utm_term=space+engineers+cobalt+ingot PDF link annotation
    • https://cdn.sqhk.co/dirodivive/7CDFyhb/xaruxugaxokuzitavomodap.pdfIn PDF document text
    • https://cdn.sqhk.co/jagakutojut/4gzSihc/extreme_car_driving_simulator_hack_download_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373987/normal_5ffc510f41910.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371786/normal_5fa90340201bd.pdfIn PDF document text
    • https://cdn.sqhk.co/xarobumevux/YIxjwvh/noxegamoporatibidowibenix.pdfIn PDF document text
    • https://cdn.sqhk.co/janonaset/hhicOjj/ascoltare_radio_italiane_online_gratis.pdfIn PDF document text
    • https://cdn.sqhk.co/kajurineg/RQhaGcZ/outliers_meaning_in_urdu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414489/normal_5fc141f301719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501804/normal_5fb256e4dae62.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/gjjiahg/vezikitefaromepudog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393486/normal_5fb28954e5448.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393016/normal_5fe2734931d49.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tiduro/xomesuligu.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/powerpoint_agenda_template_free.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC698 5132 bytes
SHA-256: 80755ebf2377e55ae6b97bcd83f81d4686557f7f047deda1a1915b55158ae806
font_01_sfnt_off0000d7fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FC 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off0000e35f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE35F 11108 bytes
SHA-256: 3d50e518d65bf6a0b1f39ed0e1a718ea8159ca0011ddcaf0e203c9e16904da8f
font_03_sfnt_off00010951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10951 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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