Malicious PDF — malware analysis report

Static analysis result for SHA-256 79ed34c162f90784…

MALICIOUS

PDF

75.6 KB Created: 2021-03-09 06:19:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1cc7d639ba5f6e18f9b62c112a4e8d07 SHA-1: 2d77962e6aae7c5e324f90a48c521f8a291109e2 SHA-256: 79ed34c162f9078467eff17adad26cb459ae257d3042b4606b7b491588e1de15
96 Risk Score

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. The presence of numerous external URLs, including one pointing to 'botokaw.ru', suggests the document is designed to redirect users to potentially harmful websites. Although no scripts were explicitly extracted, the PDF_URI and EMBEDDED_URL heuristics indicate the document contains links intended for malicious redirection, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/123?utm_term=chakra+balancing+anodea+judith
    • https://webebusili.weebly.com/uploads/1/3/0/9/130969565/39a0b43d50b5bd.pdf
    • https://tajafakedebufu.weebly.com/uploads/1/3/1/4/131438499/maxuwesejad_sugurikaras.pdf
    • http://easy-money-cash.space/wadebotakitiviwiwtnkr0.pdf
    • https://cdn.sqhk.co/bewewojiwo/bo3jdji/powuvavetoguwovuwerutuzi.pdf
    • http://tobufupevujuma.mygamesonline.org/17697072581.pdf
    • https://sovufejado.weebly.com/uploads/1/3/0/7/130740048/9828989.pdf
    • https://cdn-cms.f-static.net/uploads/4423155/normal_602ffab639942.pdf
    • https://wisamifogafize.weebly.com/uploads/1/3/4/5/134598642/nokuxarafe_sakozovus_vapawaboxanosi_kibapug.pdf
    • http://theharaka.online/68709016210cg8fm.pdf
    • http://mrshadow.net/top_notch_fundamentals_workbook_unit_1474n4p.pdf
    • http://iranomics.com/ultimate_epic_battle_simulator_gameplay_pcpxx0k.pdf
    • https://static.s123-cdn-static.com/uploads/4459177/normal_6001f7db43e5f.pdf
    • https://cdn-cms.f-static.net/uploads/4530846/normal_602c3adf9909e.pdf
    • https://cdn.sqhk.co/vujagefamig/2qcn6wH/58521089728.pdf
    • http://lomigakorak.getenjoyment.net/94560306180.pdf
    • http://gatorama.site/wag_the_dog_online_freeji95g.pdf
    • http://jofufunobek.sportsontheweb.net/how_many_carbs_to_eat_on_diabetic_diet.pdf
    • https://munulokepopat.weebly.com/uploads/1/3/5/2/135297381/b0f75cd10319f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sagoralezerelo.onlinewebshop.net/68744316569.pdf
    • http://tiluxusimutine.atwebpages.com/72611636081.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_off0000dc0d.bin
ec42631a2cad06cb66fe6b1f3b0907033034cab889809fc1ed4a6a1b0f79dba5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0D 5208 bytes
font_01_sfnt_off0000edb3.bin
a981ef58687654f3d0ff9f28ef3c89e479faee062a5c80c99db854722e96c693		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB3 10892 bytes
font_02_sfnt_off000112f7.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112F7 4324 bytes

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