Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bce64ffc899bc6f…

MALICIOUS

PDF

83.9 KB Created: 2021-03-29 14:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16ac91b2333bf2bd840069781bd1429c SHA-1: 7ff8b17ce5a3fdb120e401d643edd11d78eb9545 SHA-256: 7bce64ffc899bc6fbbfcb3b2d7b5217755a57d2589903373c1caa2000e9f59ee
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for further exploitation. The document body, though heavily obfuscated, suggests a lure related to games or entertainment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=ace+gangster+taxi+unblocked+66
    • http://milesnires.xyz/36890088345ozx1f.pdf
    • http://rubeatyshop.xyz/snc1d_chemistry_testi1pyg.pdf
    • http://toxaxugepevu.iblogger.org/zedatijubabimokesena.pdf
    • https://cdn.sqhk.co/fadejiweruw/jj2iaib/sogufo.pdf
    • https://cdn.sqhk.co/kibizatududo/hcicEv9/bird_feeder_squirrel_proof_diy.pdf
    • https://cdn.sqhk.co/vizakifito/FiagTPE/pavifidubevimezaxaxir.pdf
    • http://rawiduti.medianewsonline.com/can_i_move_my_fios_router_to_a_different_room.pdf
    • http://metalllift.ru/43526426259p7to7.pdf
    • http://qqkaxes.xyz/872207432474gswa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://vatujub.rf.gd/xuvajot.pdf
    • http://vezoxonu.epizy.com/47223291944.pdf
    • http://nejoselox.epizy.com/energie_renouvelable_tunisie.pdf
    • http://rawuvotatu.rf.gd/european_guideline_variation.pdf
    • https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_b507de0a74f34d6b845092d479dddda2.pdf?index=true
    • https://033a7475-7ccb-45c1-8f1e-38fd320d48d0.filesusr.com/ugd/03a576_410c368de6884d4a9f02f761be20d76b.pdf?index=true
    • https://dce09894-55e7-49e1-9c43-b94069c58f23.filesusr.com/ugd/11ae40_540c13f4148b4ba18856f0a4bee007d0.pdf?index=true
    • https://0306adf0-382e-42f1-903d-71c3961c97f1.filesusr.com/ugd/7ff653_4dac2bf52a134ee6afab03235f0d1008.pdf?index=true
    • http://sogivuwe.onlinewebshop.net/99819179531.pdf
    • http://nofolimuri.myartsonline.com/lng_bunkering.pdf
    • https://aa700e4b-9450-4a85-8b7e-8c92ffe47626.filesusr.com/ugd/de972d_d8be8d8cec4043a4958dc493eaf9cbb3.pdf?index=true
    • http://fijoxim.epizy.com/77087357032.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_off0000f9a4.bin
5dba463daebd0b6fa1a2135cb215258c6ff49a69aed688a745b6dd892ff5ab91		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A4 5404 bytes
font_01_sfnt_off00010c06.bin
0a6a8a688e7938603ca5603ef782cc74bc9d542b608d80a272e6ab7c39d30ec9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C06 11684 bytes
font_02_sfnt_off000133e2.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x133E2 4324 bytes

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