Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d1b5be5d07d4632…

MALICIOUS

PDF

78.9 KB Created: 2021-03-23 09:39:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 118b9fd0009ec62efd4207644cf60019 SHA-1: 3a443c6bc1f6555dcda82789e58378bc476aeb54 SHA-256: 1d1b5be5d07d4632d2ab2dc1f476795888afd5bd18ffb2183d14ac8efc4d2359
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 URLs, many of which are unknown or suspicious, suggest the document is designed to redirect users to potentially harmful content. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://cdn.sqhk.co/nupozifulija/cA43YbM/geometry_dash_spider_challenge.pdf In PDF document text
    • https://cdn.sqhk.co/wedekimelol/ihVhfge/delicious_dinner_recipes_for_two.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwozobo/zISKOjj/minukonujedowukawowe.pdfIn PDF document text
    • https://cdn.sqhk.co/bipozipo/jcQzuIL/wave_live_wallpaper_mod_apk_revdl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450145/normal_5ff7f72aa3b4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469116/normal_601286a69efef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387244/normal_5fe338bc8c82a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459636/normal_5fde6ea93ad09.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453890/normal_5fcfb034bc5f7.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/fljhchc/lefawanuzogesez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486742/normal_5fc8f3ef94ccc.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxarogajib/XRTdKhd/wamoruriwakolijagut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483870/normal_5fe2f7a2a9cf9.pdfIn PDF document text
    • https://cdn.sqhk.co/xafogatok/hiigdhj/vepilowe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/Xr6F2PkPTcg/wb?keyword=nec%20dt300%20phone%20change%20namePDF link annotation
    • https://s3.amazonaws.com/fulosobezur/coliform_bacteria_test.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/4314975329.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/89189944556.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/software_manual_template_word.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81c8826e-ee39-4065-b850-cf059bf830a2/what_cameras_are_compatible_with_lorex_dvr.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/phonics_flashcards_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b08e8f6e-ed7e-48d9-bd7a-634184c39cef/baridop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15301bd8-382f-4ec4-984d-a14500711fab/how_to_use_tracktion_7.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_off0000f83f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83F 5456 bytes
SHA-256: 787c6dd802c216960917a9a34d870a503030bd4f3f6bc9bbe2db79b7e2465300
font_01_sfnt_off00010ab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB9 10460 bytes
SHA-256: 51b865532e30f808bbb72c2b98665c5b4bddd5f83f4dddd3edc0b1b022340792

Open this report in the interactive analyzer, or submit your own file for analysis.