Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3acd0eef92cbd9…

MALICIOUS

PDF

73.7 KB Created: 2020-12-06 17:54:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32a7d416216a98393924d5ffb38ac89c SHA-1: c725f05b8d222a23c3b1985ab7f09c2840ebb44c SHA-256: 0e3acd0eef92cbd950c2e9f3ecca04f83fe50c3a08fa807073e8b6324adedd24
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains an embedded URI pointing to 'trafffe.ru', which is highly suspicious. While no scripts were explicitly extracted, the presence of an external URI in a malicious PDF strongly suggests an attempt to redirect the user to a harmful site, likely for phishing or to download a secondary payload.

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

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