Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7cdee08d5da25c1…

MALICIOUS

PDF

180.1 KB Created: 2021-03-24 08:34:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c8d1f1701fc2e06b63e3a7c1216271e6 SHA-1: e8bd74681c9392cc06184af5d93a3a6787b06a53 SHA-256: d7cdee08d5da25c19499caa506249af2459dac5ed74b225977d219716d7650de
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. The document body, though heavily obfuscated, contains keywords related to network hardware, suggesting a lure for technical information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://kuzutuzo.ru/strik?utm_term=netgear+wgr614+v6+dd-wrt
    • https://wixezijuni.weebly.com/uploads/1/3/5/3/135312108/57e011af5.pdf
    • https://sepanafawo.weebly.com/uploads/1/3/4/3/134316973/7923764.pdf
    • http://niwadeg.mywebcommunity.org/how_to_program_a_luxpro_thermostat.pdf
    • https://cdn-cms.f-static.net/uploads/4449422/normal_601dcfd6e45e0.pdf
    • https://cdn-cms.f-static.net/uploads/4490376/normal_6016a9dbd92b5.pdf
    • https://cdn-cms.f-static.net/uploads/4385230/normal_6048e1cb1cf12.pdf
    • http://pejelurim.getenjoyment.net/how_to_find_the_amount_of_grams_in_a_compound.pdf
    • https://zebazefapik.weebly.com/uploads/1/3/1/3/131383848/2789519.pdf
    • https://static.s123-cdn-static.com/uploads/4377410/normal_5fee4b430b0c5.pdf
    • https://mudulavodeg.weebly.com/uploads/1/3/1/0/131070753/feriresa.pdf
    • https://kibimibenafozo.weebly.com/uploads/1/3/5/9/135979164/kotaw_nerenimip_goragik.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tamovagag/aov_taiwan_apk_pure.pdf
    • https://s3.amazonaws.com/xufoxorog/amaravathi_tamil_movie_songs_free.pdf
    • https://d2ea4bfc-f92a-4379-acf2-d9b69981ddb7.filesusr.com/ugd/739437_43ebbcbb593f4d569ad0583fcce27107.pdf?index=true
    • https://bf23b77b-49a9-4bef-a898-a03cfb94aefa.filesusr.com/ugd/134172_ad1cb8c6a608484db96119415a7e0c7c.pdf?index=true
    • https://9f503c4c-bf14-4dcb-9a7a-68e0e5bb3568.filesusr.com/ugd/8ac1ab_c9e3a8963dd143d5be3115f2e87df6d7.pdf?index=true
    • https://s3.amazonaws.com/jutenojamega/fundamentals_of_statistics_5th_edition_sullivan_free.pdf
    • http://pulutugorivexek.atwebpages.com/53715471958.pdf
    • https://s3.amazonaws.com/ronenitevodo/14995028996.pdf
    • https://s3.amazonaws.com/rizezobabub/bandwidth_limit_exceeded_mega_jer_2018.pdf
    • https://s3.amazonaws.com/wovugi/milikagaxabewugevaniro.pdf
    • https://5c839259-519f-4cee-a1a2-6639d654070b.filesusr.com/ugd/140efa_f832d430bb4d4c1091844464a4e60fdb.pdf?index=true
    • https://s3.amazonaws.com/lodazojamuva/manual_de_organizacion_estructura.pdf
    • https://48bf584d-d56c-45cf-b4f3-c1c05dce5274.filesusr.com/ugd/3f4b99_cf9b20629a0d4bbb954d4f4b11cbd538.pdf?index=true
    • http://tatesit.myartsonline.com/cours_bascule_jk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4da.bin
136717caa0a4fb7dfe0a916990301cad35c0649b9e41d6fcbc6253c2d1cbb287		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DA 137980 bytes
font_01_sfnt_off00028bc5.bin
0eee1b68579b83ef99d2513d5a658f87c29231076ccfcf86d543fffbd07a5773		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28BC5 5232 bytes
font_02_sfnt_off00029dd1.bin
94502b10746c320d195f03aa70b3a571f5e99651d8fec88b370e6794e8eab46e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29DD1 10680 bytes

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