Malicious PDF — malware analysis report

Static analysis result for SHA-256 de429d271f97e1a2…

MALICIOUS

PDF

205.4 KB Created: 2021-05-18 05:30:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 2d79f668a7a2a06053b79a7a29ea9a0b SHA-1: 62646d61b0a29d14d3827b0c775a0ea967cd7a2e SHA-256: de429d271f97e1a257cd30f57b61da6e3f0fb93b6f73212fb2c8d9d22f37fe67
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high probability of malicious intent. The embedded URL points to a domain associated with phishing or malware distribution, likely serving as a lure for users seeking software activation keys. The document body, though partially corrupted, contains text related to 'Matlab activation key free r2020b', reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9937

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/strik?utm_term=matlab+activation+key+free+r2020b PDF link annotation
    • https://folozulo.weebly.com/uploads/1/3/5/3/135351090/b704cfa6.pdfIn PDF document text
    • http://jopekeniwuvino.iblogger.org/bafg_formblatt_3_zum_ausfllen.pdfIn PDF document text
    • https://milavigik.weebly.com/uploads/1/3/2/8/132815866/3841972.pdfIn PDF document text
    • https://rejovofutilux.weebly.com/uploads/1/3/1/4/131484728/dowiv.pdfIn PDF document text
    • https://pevaluxuduta.weebly.com/uploads/1/3/4/5/134502983/dojumo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/543a6a01-2527-4d75-8d28-f31e4fa8e474/tree_of_life_jewelry_pandora.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/airmen_selection_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/noxinujavoxuwonugivekimo.pdfIn PDF document text
    • http://fetufebutegiv.rf.gd/followspot_cue_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a57b58b2-eedb-4cfd-804b-fe1d8c258f5c/xoniv.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/bullet_bike_pics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e0957df-6014-46f1-ad29-36c0fcb79f58/56982534157.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24ee8226-9f9d-4656-8910-6554ddfbb457/taxebinizosukatataxelepe.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/fintrac_eft_reporting_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76bb20cf-41d8-49fe-aac0-a690880f8391/pod_xt_live_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/nergie_renouvelable_dfinition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0d9ce9e-6318-4955-914a-c6e14c0e689c/garmin_430_install_kit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f52f4236-b972-42c5-af58-35df9467bd92/ac_repair_guide.pdfIn PDF document text
    • http://dibalata.epizy.com/32636196058.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29acf1a9-fe94-43fb-b00f-e5c2001dde1c/76216345364.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB40 162604 bytes
SHA-256: 97032a71542e16e0daf95c4697eada94b1d445881830669aa858e949c1f93129
font_01_sfnt_off0002d8f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8F3 5340 bytes
SHA-256: 227ecea5d0fb33165a296de9b58e8511b92e5eb555398c32acc7a095da882399
font_02_sfnt_off0002eb52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB52 10736 bytes
SHA-256: bf69b67d4addd9a94dff2422b7c9f0b4336ea0e59d95eb67fe72b9852a2d3654
font_03_sfnt_off00030fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FA9 16232 bytes
SHA-256: 5550aee2d324c1284251b1b8f4ea932e27d1e8a15bb02d0b879354bc667cc3b8

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