Malicious PDF — malware analysis report

Static analysis result for SHA-256 97bd8cc6a5738e5e…

MALICIOUS

PDF

69.9 KB Created: 2020-12-06 17:54:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 45bf052904df89acb86220d708062d1d SHA-1: e2d7ea7c56de6a0a1ac6b5a14599174dcdc36351 SHA-256: 97bd8cc6a5738e5ecf1dbd73abb960f559e7d9e2f3ab03133ad12d7c0c0e2d49
94 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by heuristics and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'controlled crying guide'. The presence of an external URI indicates an attempt to redirect the user to a potentially harmful website, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7687

Heuristics 3

  • 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
  • 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://trafffe.ru/aws?utm_term=controlled+crying+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4471988/normal_5fc25b025a536.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496592/normal_5fc78bd973cdb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vazisi/gurugram_university_date_sheet_2019_b._com.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/15773261647.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/acbl_learn_to_play_bridge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad0a59ab-9d30-4af2-8b36-63ec67eb98f7/kappa_kappa_psi_secrets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ada2cebd-5c89-4a76-b566-a6d7eee3ac81/lodajewamapomapu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c7018b1-51a0-473e-bed0-1ebbe06c9f6b/super_metroid_maridia_stuck.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71ce12f5-71b2-4bf5-b0e6-0753640b4442/65221882994.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31b86cec-7840-42b2-9d87-b4819051a440/activo_hoy_significando_happn.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/606f0fe4-7160-4c14-8a96-65c461731d65/pewiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f609af37-39be-4115-a994-3401722dcd29/do_stretching_exercises_increase_height.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/48767947055.pdfIn 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_off0000e687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE687 4724 bytes
SHA-256: 39c359397f6d9d9ad3e162c7949e7d753f5b611db06d2f19c52ab4c8fae3cad0
font_01_sfnt_off0000f6ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AB 10460 bytes
SHA-256: 63ee8b81d5cab034f28f07399af702b87804b92997dafa8f3818897b89c8ddca

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