Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c6f9d9101e0645e…

MALICIOUS

PDF

91.7 KB Created: 2021-02-18 11:21:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 8a25334a67afc382e039f48e2f6729d8 SHA-1: 20e2fa0d16bae5c69a5c379ed53d7f88999e5489 SHA-256: 4c6f9d9101e0645ef0260d0bc977d56b1f8e28ef4162b702b7d366536df964a1
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 embedded URL, https://jacksth.ru/wb?keyword=d&d%20warlock%20hexblade%20weapons, is likely used to redirect the user to a phishing or malware distribution site. The PDF structure and embedded URLs suggest it's part of a phishing campaign, likely delivered as a spearphishing attachment.

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://jacksth.ru/wb?keyword=d&d%20warlock%20hexblade%20weapons PDF link annotation
    • http://tameenegypt.com/ketemuneliweruj9vcf.pdfIn PDF document text
    • https://cdn.sqhk.co/fowonawex/dja0jdy/zara_sale_2020.pdfIn PDF document text
    • http://shlifovka-pol.website/296948649283iyfk.pdfIn PDF document text
    • http://daxogupifixago.iblogger.org/lidixusaz.pdfIn PDF document text
    • http://ilkertr.shop/91797149457hjtbf.pdfIn PDF document text
    • http://persequen.com/dodiwejoxulopilufutesufg6d9y.pdfIn PDF document text
    • https://cdn.sqhk.co/nufopusifa/haiiig9/to_fu_oh_sushi_game_download.pdfIn PDF document text
    • http://help-nanny.site/97277040925flzy2.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/bQji5ic/21546594403.pdfIn PDF document text
    • http://koteyarn.moscow/arjun_r_meda_new_timli_2019qqecp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ralivapoked.epizy.com/17883468751.pdfIn PDF document text
    • http://vofiwevo.epizy.com/costing_sample_worksheet.pdfIn PDF document text
    • http://nokolul.epizy.com/aiims_raipur_admit_card.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/sigibedejapiwekinelek.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/76867782681.pdfIn PDF document text
    • http://rusesav.rf.gd/75950242339.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AF0 4156 bytes
SHA-256: 4137e011fb50e940388b7a91a31e36f70741d8ce55ef6fbc7fb0314564e06879
font_01_sfnt_off00013920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13920 12440 bytes
SHA-256: 264d0b9db69a4176bc8b520b845b08f2b730c61aab1e1879f2c706075bd5e91f

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