Malicious PDF — malware analysis report

Static analysis result for SHA-256 705495f6f74d1f14…

MALICIOUS

PDF

76.6 KB Created: 2021-06-01 05:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a4e6fdc53a56da8008ee1a10254fc45 SHA-1: 9c1912c6c38ea7a4f88f32d0e70066c82d8e09d6 SHA-256: 705495f6f74d1f1400a5a51efaf736ac6fa569cfb6ade691ac94bf5204d96c41
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan payload. It contains an external URI pointing to 'pixomot.ru', which is likely part of the malicious infrastructure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://pixomot.ru/pbw?utm_term=manual+garrett+gti+2500+con+ojo+de+aguila
    • https://zunotebizi.weebly.com/uploads/1/3/4/6/134648513/a27064d.pdf
    • https://cdn-cms.f-static.net/uploads/4466154/normal_60504d2f3c6ff.pdf
    • https://static.s123-cdn-static.com/uploads/4377400/normal_5fcd5df027cef.pdf
    • https://ruzamoga.weebly.com/uploads/1/3/4/7/134761687/dopivurababuze-selipi.pdf
    • https://tovijivesigaz.weebly.com/uploads/1/3/5/3/135327805/70742b2b8.pdf
    • https://cdn-cms.f-static.net/uploads/4370542/normal_603c6b7be125a.pdf
    • https://cdn-cms.f-static.net/uploads/4422147/normal_600a736ec2be3.pdf
    • https://cdn-cms.f-static.net/uploads/4446511/normal_60605ac6ad67f.pdf
    • https://jafedemigizol.weebly.com/uploads/1/3/4/5/134588438/ed37a47a1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://barumena.pbworks.com/f/how_to_set_large_animal_trap.pdf
    • http://tusawijer.pbworks.com/w/file/fetch/144441033/bihar_stet_computer_science_result_2020.pdf
    • http://mibegenav.pbworks.com/w/file/fetch/144436749/30246928495.pdf
    • http://wuxikadafi.pbworks.com/w/file/fetch/144416727/ruwupixidupabifenaronipu.pdf
    • http://kokoxudalux.pbworks.com/w/file/fetch/144427326/zudado.pdf
    • http://poforezufovu.pbworks.com/f/55167006306.pdf
    • http://nefusim.pbworks.com/f/dresser_son_chien_gratuit.pdf
    • http://letonepamusi.pbworks.com/w/file/fetch/144437361/cuanto_es_2_3_8_pulgadas_en_centimetros.pdf
    • http://bofamawetodo.pbworks.com/f/walobujavima.pdf
    • http://tisowowuduwe.pbworks.com/f/94552463651.pdf
    • http://rujuboxu.pbworks.com/w/file/fetch/144440667/93539553847.pdf
    • http://tagexoba.pbworks.com/w/file/fetch/144421737/23428337183.pdf
    • http://wozixokumo.pbworks.com/f/veronika_decide_morir_descargar_completo.pdf
    • http://didaneguk.pbworks.com/w/file/fetch/144428997/how_to_pass_your_cdl_permit_test.pdf
    • http://rasovuxosew.pbworks.com/f/how_to_build_circuits_in_tinkercad.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb08.bin
4623a2010f7d2e264446d31eea1684d6f5137a108ef50663990b19d1a5034813		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB08 5408 bytes
font_01_sfnt_off0000fd8e.bin
a917799a6c79df2850278bd277a517bf5f0db21946b8586370cd616d7e4f1c8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8E 12200 bytes

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