Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd855428280a03a…

MALICIOUS

PDF

82.9 KB Created: 2021-03-06 20:28:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d158b57924b40708eb9356059334607 SHA-1: ed50778dd01f77528f3a1d701c206f0b847f3fc7 SHA-256: ffd855428280a03a504b6c58b8fd2ae773965079ccabedd252fcd7ba8cf18af9
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, indicating a high likelihood of malicious intent. The embedded URL `https://mezovuduw.ru/wix?keyword=harry+plopper+simpsons` suggests a phishing or scam attempt by directing the user to a potentially harmful website. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://mezovuduw.ru/wix?keyword=harry+plopper+simpsons
    • http://mitsumoro.ru/can_i_get_youtube_on_my_dish_hoppervih3k.pdf
    • http://barcaporirternet-interbank-pe.com/94398905992xfbhd.pdf
    • https://static.s123-cdn-static.com/uploads/4460708/normal_5fe0bd11ce73d.pdf
    • http://tumbaa.space/vemunetimapujanosaluxkdn02.pdf
    • https://cdn-cms.f-static.net/uploads/4386618/normal_601c8809c6d98.pdf
    • https://cdn.sqhk.co/tomubozes/dghtXij/super_phantom_cat_2.pdf
    • https://cdn-cms.f-static.net/uploads/4483856/normal_603d56b819ca3.pdf
    • https://cdn-cms.f-static.net/uploads/4374373/normal_603a5e2b700ed.pdf
    • https://cdn-cms.f-static.net/uploads/4476593/normal_5fe781cfbbe95.pdf
    • http://creampiepow.club/38277178366i0vcf.pdf
    • https://cdn.sqhk.co/pagifizipafo/gdabnbl/parallel_world_meaning_in_tamil.pdf
    • http://runmasten.online/wumetuwojf34yu.pdf
    • https://cdn.sqhk.co/libavesonon/cOpjejf/upcycle_wedding_dress_diy.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/geradi/juroneja.pdf
    • https://8546b567-499d-44cb-812b-f4cb210fa0cc.filesusr.com/ugd/1f0b74_3b23e197b1a64a19a0aaa5d8fd1976be.pdf?index=true
    • https://s3.amazonaws.com/napejaxosinages/fixusibedizunewowas.pdf
    • https://df4002df-ed14-466c-b758-10ced248c840.filesusr.com/ugd/3b03e6_40847aa5f98e448cac27f13899da7cf2.pdf?index=true
    • https://87c8fc71-818b-4167-bf0d-2ac3bc49ffd1.filesusr.com/ugd/f9d4cd_0042f164167044418452a53c83e8a8d4.pdf?index=true
    • https://45f91bdd-2b68-4e60-ae2c-b14373ae5332.filesusr.com/ugd/0d089b_25988d1bdfde45b19247f239da423bcf.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_off0001081a.bin
5334a5cb8a7a59cd2a615d21238dd019dd14c379e852c44c30beaf16177b51c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x1081A 5028 bytes
font_01_sfnt_off00011926.bin
393c9a552e4346de68e2c05259bc14e25c0988632927c0bd7f96304175d3c087
pdf-font-stream PDF embedded font (sfnt) at offset 0x11926 11104 bytes