Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ff4a6e47f875106…

MALICIOUS

PDF

73.9 KB Created: 2021-03-31 05:38:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 20be7bd5db1a2ba7422425c90bfa2d70 SHA-1: 88d1c9e0aaeb8ecc1c0f1a1e5123c944e67af81a SHA-256: 1ff4a6e47f8751068303023a34b98a508aeb283aeff448ffc715ce44f86d7b4e
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL, https://lozipotod.ru/wix?keyword=starbound+base+design, suggests a phishing or social engineering lure, likely intended to trick users into visiting a compromised or malicious site. No scripts were extracted, but the PDF structure itself contains malicious indicators.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lozipotod.ru/wix?keyword=starbound+base+design
    • https://cdn.sqhk.co/dizoketa/ijjjin4/snaker._io_voodoo_online.pdf
    • https://cdn-cms.f-static.net/uploads/4480403/normal_5fd177e81c925.pdf
    • http://fapasevusiledap.mygamesonline.org/51455220916.pdf
    • https://cdn.sqhk.co/zikegasenar/vkSijgE/golf_galaxy_in_warwick.pdf
    • https://cdn.sqhk.co/xafiguzi/dsIghav/58260026465.pdf
    • http://lunatan.medianewsonline.com/48691618312.pdf
    • https://cdn.sqhk.co/kivipemo/Coljfza/20686375296.pdf
    • https://static.s123-cdn-static.com/uploads/4495246/normal_5fc5e85898afb.pdf
    • https://static.s123-cdn-static.com/uploads/4374853/normal_5fdd5d62e1e1c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://61249681-e2d1-4375-841a-b3723294d79c.filesusr.com/ugd/3d514e_692b0650b92b4848b30df5a41ad211fb.pdf?index=true
    • https://uploads.strikinglycdn.com/files/2f6855fe-a217-48dd-bddb-3bac51b70240/47725946431.pdf
    • https://dba0ca6b-c979-46b3-87c9-041648dee063.filesusr.com/ugd/6f58fb_69806ba1fe634a35a58e1fc6c4343af8.pdf?index=true
    • https://uploads.strikinglycdn.com/files/757c92b7-1e2f-4eb3-b636-7fa0cb16ab30/how_much_does_deltek_ajera_cost.pdf
    • https://uploads.strikinglycdn.com/files/635ea8d7-883a-4708-a9b3-459e63dc69d8/download_light_novel_sword_art_online_progressive_bahasa_indonesia.pdf
    • https://uploads.strikinglycdn.com/files/0dc70dd9-24c0-4d36-a89d-2e95918c6467/diagramas_electricos_de_transmisiones_automaticas.pdf
    • https://4bbf79d8-97e4-42de-9a75-948158c354f0.filesusr.com/ugd/52f5d3_1220d1f8a8044ad9ac6092cc8e8131a5.pdf?index=true
    • http://gavekur.epizy.com/xunanenogalebuf.pdf
    • http://segukilu.epizy.com/soft_skills.pdf
    • https://uploads.strikinglycdn.com/files/3498ed81-8d79-4b2b-b4cc-4403cf54b8f2/ver_diarios_de_una_motocicleta_online_espaol.pdf
    • https://d38713d8-f9e0-49bf-8e72-3f46774ce551.filesusr.com/ugd/b3faf5_e744a261fc1447299e718b57a609d795.pdf?index=true
    • https://5e6d3f51-9b35-4a29-baf4-1f036254a461.filesusr.com/ugd/99a8f2_17b3d80864774c319955a6beafd45e9f.pdf?index=true
    • http://dovelarewiju.epizy.com/bulleya_sultan_ringtone.pdf
    • http://kupipeda.epizy.com/tusetupa.pdf
    • http://fuwutowamig.myartsonline.com/bester_ebook_reader_fr.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3f2.bin
8f0c28f1c1e076b3cc8c70900d8be401590b1b9093910aa9df378a4b551a3b3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F2 5204 bytes
font_01_sfnt_off0000f5aa.bin
a26648287a2f0b383043264607b99663b5f09c08a76d9a71c2cd5cbe9f1f0927		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5AA 10672 bytes

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