Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8db0b0d4c7b1e85…

MALICIOUS

PDF

77.2 KB Created: 2021-04-05 11:27:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d4deedb6ba0ecc69d3d3f58c171f9955 SHA-1: 0fee4ce180b576bd39ba29058128d4869e70e6a5 SHA-256: f8db0b0d4c7b1e85888ebfafc4898c2d92c8e752ba2570d6d0d12023c476f8cd
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that appears to be part of a phishing or scam campaign, disguised as a product listing. The presence of PDF-specific heuristics and embedded URLs suggests an attempt to trick users into navigating to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/strik?utm_term=toro+leaf+blower+vacuum+replacement+bag
    • https://pipulelinukebe.weebly.com/uploads/1/3/4/3/134364851/ziwukojebemat.pdf
    • https://mojisavavuke.weebly.com/uploads/1/3/5/3/135312470/xitusabajazateme.pdf
    • https://reropazorulofo.weebly.com/uploads/1/3/4/4/134437501/logafexi-janef-sozud-jeboni.pdf
    • https://nevipezuke.weebly.com/uploads/1/3/4/6/134652321/7260515.pdf
    • https://tuwoganerolet.weebly.com/uploads/1/3/4/6/134631505/wodufuribozisazev.pdf
    • http://wutigesekigaj.22web.org/jedejadotebaj.pdf
    • http://ragofilud.medianewsonline.com/american_gods_script.pdf
    • http://lumufurisazela.mywebcommunity.org/sekaxobugeju.pdf
    • http://bomumerodozo.22web.org/verewaz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://firasala.epizy.com/37290337465.pdf
    • http://xuwegivogitarut.epizy.com/bikuxifufewaraforoze.pdf
    • http://fufapawaxuta.rf.gd/creasing_of_paper_board.pdf
    • https://s3.amazonaws.com/rubidokezive/cbse_class_12_accountancy_ncert_book.pdf
    • http://ravuwuvilusu.epizy.com/89928909742.pdf
    • http://zotawof.rf.gd/60607723089.pdf
    • http://vobewegogiz.rf.gd/nivepuw.pdf
    • https://s3.amazonaws.com/suzujewa/math_word_problems_grade_2.pdf
    • https://s3.amazonaws.com/matogapibelifiv/painting_ideas_for_eight_year_olds.pdf
    • https://s3.amazonaws.com/vufupu/23620304701.pdf
    • https://s3.amazonaws.com/libusamagowuvo/lsf_twin_and_earth_cable_data_sheet.pdf
    • https://s3.amazonaws.com/xunilukegez/72865888992.pdf
    • https://s3.amazonaws.com/lukepepe/tijidawowewi.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_off0000f041.bin
8cdeabef3b7db73ea373cc8605caec99ce742c5b8dfd369fe06030f362b8adf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF041 5396 bytes
font_01_sfnt_off000102a8.bin
da13b8ff22ddeaead5660818346fa63430e31619c4bc3a30d864a8a870c2621e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102A8 10708 bytes

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