Malicious PDF — malware analysis report

Static analysis result for SHA-256 001c6ddad236b5a7…

MALICIOUS

PDF

75.1 KB Created: 2021-03-09 15:50:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2dc450293d9efec32788166c5c59868 SHA-1: 690ef854a70b6de789c6b6f6429ae538b478a3ea SHA-256: 001c6ddad236b5a7cad12bbb3bc6321f019d728363f19f011910d34d7f59d56a
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 URL pointing to 'resalured.ru', which is likely part of a phishing or malware distribution scheme disguised as a user manual. The PDF structure and embedded content suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://resalured.ru/strik?utm_term=toshiba+model+dp5022-sd+user+manual
    • http://lightstart.xyz/what_are_the_different_theories_on_the_origin_of_life_illustrate_and_describe_eachpulo3.pdf
    • http://load-bcp.com/28165148954fqna5.pdf
    • https://cdn-cms.f-static.net/uploads/4501501/normal_6013c9bee340e.pdf
    • https://cdn-cms.f-static.net/uploads/4472208/normal_602759f94a1ca.pdf
    • http://fixmarker.fun/integrated_chinese_level_1_part_2_workbooke13iw.pdf
    • http://fikofeva.22web.org/38707108848.pdf
    • http://legovimoz.iblogger.org/kakejomadobedubej.pdf
    • http://strita.space/platform_bed_frame_queen_cheappfbey.pdf
    • https://static.s123-cdn-static.com/uploads/4413573/normal_5feb1b7047f61.pdf
    • https://cdn.sqhk.co/jisepozidis/gjIgjhi/williams_pinball_parts_coils.pdf
    • https://static.s123-cdn-static.com/uploads/4422147/normal_5fec658073d0d.pdf
    • http://rimka.xyz/runipijutukikuzugajivodp16r3.pdf
    • https://cdn-cms.f-static.net/uploads/4374535/normal_5fdc4788d17be.pdf
    • https://cdn.sqhk.co/tosilura/bswSZqo/83838023515.pdf
    • http://malespw.xyz/angulo_de_elevacion_y_depresions554w.pdf
    • http://milanomoda-italy.website/68011794203wpfjn.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0ea28b16-58c2-472d-b6be-3e97fe9b7bb6.filesusr.com/ugd/696b8a_0b74d7a022d74543b4be4e0e3ab98b25.pdf?index=true
    • http://sadusijof.rf.gd/nawiruvaxexozulonedefij.pdf
    • http://wosoremozojofam.epizy.com/69854925847.pdf
    • https://86a9da1b-0b57-4b35-a77a-523886b904cd.filesusr.com/ugd/0d9a50_af1854050cea4962b8ce15f450fe952e.pdf?index=true
    • http://kadanokadija.epizy.com/el_futbol_a_sol_y_sombra_completo.pdf
    • https://cf587a47-7c2f-4f55-8bbb-21a4c73503f7.filesusr.com/ugd/8ea597_485430415962405692de3939d280c2d3.pdf?index=true
    • https://84d655c4-d84a-4a0c-9c32-0387925bd622.filesusr.com/ugd/6233da_b837e5c22b8c46b29fa59ad41d14a546.pdf?index=true
    • 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_off0000e752.bin
a4e7ac4b3a55e58fc186624876fb76712bc3193b6534e4251098075a9a58c92e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE752 5716 bytes
font_01_sfnt_off0000fa98.bin
cb6c01a40d33afb02b2ca9152dbbd309858754b0db6db9a49da010aafc3437b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA98 10636 bytes

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