Malicious PDF — malware analysis report

Static analysis result for SHA-256 c64107522675f8b4…

MALICIOUS

PDF

89.9 KB Created: 2021-03-25 10:35:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa9fb2c49fafe8eace8995ed70691a37 SHA-1: d199781e08f4c26763c2750d99a7fe676a7bbc81 SHA-256: c64107522675f8b47e415e443ecbd87f665f856cf3aac6415672c1f5c9d4e23e
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with a significant number pointing to potentially malicious domains, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or distributing further malware. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xezojetit.ru/award?keyword=candy+pdf+crop
    • http://devlp.club/lights_out_2011_s018jyr9.pdf
    • https://boviseweduxiraz.weebly.com/uploads/1/3/0/7/130776594/032ab66e7643de.pdf
    • http://vovpomnim.ru/minions_illumination_full_movie_free5qy64.pdf
    • http://shopeuro.pro/18030962177xn6uc.pdf
    • https://zexawowa.weebly.com/uploads/1/3/6/0/136081798/5251330.pdf
    • https://sokijaxojo.weebly.com/uploads/1/3/5/4/135400829/ce75279903cd.pdf
    • https://vazewelekataba.weebly.com/uploads/1/3/1/6/131606588/sejunodo_bipiwo_vipas_tokofel.pdf
    • https://toxujubew.weebly.com/uploads/1/3/1/4/131437446/7ce35ad978d26d3.pdf
    • https://vizegibog.weebly.com/uploads/1/3/4/4/134458583/6597582.pdf
    • http://masalev.ru/700026272339ih98.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://d4bcd744-2348-4fe3-9006-05b2fcbd3cbd.filesusr.com/ugd/704566_df9094ee45cc43fc96693cacc4f53b44.pdf?index=true
    • https://e49cd12a-7e53-4a25-9f98-ae37b5ff2e44.filesusr.com/ugd/35dc59_f6f0cd6245de49508ba3c8700d6274f5.pdf?index=true
    • https://438c9214-13ba-44a2-8469-a4c97ff43377.filesusr.com/ugd/5d46a0_45ccdea4ea754d7b956a0f9e003eff65.pdf?index=true
    • https://899154e9-876a-4ab4-94d5-c8ef2aed10f2.filesusr.com/ugd/dcf9ad_4a597be729474775b02904631e96f586.pdf?index=true
    • https://s3.amazonaws.com/gapuruxumeg/rijadezezo.pdf
    • https://b5f62e6e-b620-4b0e-90dd-fa81fc7fb5c2.filesusr.com/ugd/18d815_6a62505c4cbb4bafa3f82d2a474b0cdb.pdf?index=true
    • https://0c3b2bb2-3ac9-4e0e-a0b2-530a831cdf0d.filesusr.com/ugd/23193f_4c7fd2099b614a7880bc1e54656c5e9f.pdf?index=true
    • https://765a5d72-5774-4a4d-a421-5c90307110ba.filesusr.com/ugd/f2a868_917b281489524506b3819f893bc3d7f8.pdf?index=true
    • https://fa202315-5cd5-4006-9a99-7c5d4406650e.filesusr.com/ugd/61804c_ea86f60527e24494b8ac83db916bf685.pdf?index=true
    • https://s3.amazonaws.com/warapagefasovi/9145379496.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed64.bin
61e961092dcf782ed0c52bbdbb6cc9850dbdff48801ffdf2ef03f8dab91af37e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED64 3612 bytes
font_01_sfnt_off0000fa4c.bin
89c659236b0fa13f94e9c2c67f94e574f593b05eee9ac00b1fe26cf20b079285		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4C 4948 bytes
font_02_sfnt_off00010b3c.bin
ae059c3d186e3a807348f6d87e65baf9a0d2dbc9db20b3b0195a3a3d1caa01ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3C 22408 bytes
font_03_sfnt_off00013e0c.bin
fa552623c7d9a86c5ff2ac5d13d0cf4e4a1b2360572083c3bd215055b51a15c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E0C 17988 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.