Malicious PDF — malware analysis report

Static analysis result for SHA-256 bad1b250485ccb14…

MALICIOUS

PDF

70.7 KB Created: 2020-11-17 15:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 8548527ef4d51076af9a76688349c3c5 SHA-1: ba3ff2e56122cf9d9818a0ae060031859e61a624 SHA-256: bad1b250485ccb149d5a2fa7163618df55aef156a3a8fd893ea9e4212d0a6c98
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI to 'traffine.ru', which is a common tactic for phishing or distributing further malware. The document body, though heavily obfuscated, contains references to '99c atm near me', suggesting a lure for users seeking financial services.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffine.ru/123?utm_term=99c+atm+near+me PDF link annotation
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/4108359.pdfIn PDF document text
    • https://vobiromab.weebly.com/uploads/1/3/4/6/134653190/5c3a41ee9cbb.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/f0a02171159fa43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417526/normal_5fab3f7fc4506.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366057/normal_5f984dbc22a72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366984/normal_5f9922fcda1e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387811/normal_5f8da1752e451.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408853/normal_5fa3a80e699f0.pdfIn PDF document text
    • https://ribifafugulif.weebly.com/uploads/1/3/4/6/134650062/41068.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/muxozuvalubi/mass_effect_3_cheats_ps3.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/mevakabadalifar.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/cause_and_effect_paragraph_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/puridesa.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/eccentricity_of_ellipse_formula.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/avengers_infinity_war_streaming_complet_vf.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/zendesk_chat_sdk_android.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_off0000d924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD924 4796 bytes
SHA-256: 78bc895ce9e7befb53b3bd1053a7c1f9be343abdfe5f76463e820653050d2c39
font_01_sfnt_off0000e960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE960 10932 bytes
SHA-256: 70b4295fedfda1d7bc1cfb7b47424f56f675861bc85785f6b62e2146361e91c2

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