Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba4289fbe79b3ee6…

MALICIOUS

PDF

79.9 KB Created: 2021-03-02 05:44:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: ed3592c85096fd5ef0c9f744984269d7 SHA-1: 01eb546452c9530b1b9a57032f779ae2b19f72d3 SHA-256: ba4289fbe79b3ee6d53946c6708fb5df74497f48d110ddd88541cc26d12401c9
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. The document body, though heavily obfuscated, contains text related to WordPress website creation, likely serving as a lure. The embedded URL `https://jottigo.ru/strik?utm_term=how+to+create+a+wordpress+website+divi+theme` is the primary indicator of a phishing or redirection attempt.

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://jottigo.ru/strik?utm_term=how+to+create+a+wordpress+website+divi+theme PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403143/normal_6006a8cea27c5.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/0vhhXij/top_10_music_charts_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420924/normal_60327290885a3.pdfIn PDF document text
    • http://nurokojo.mypressonline.com/white_rodgers_thermostat_wiring_diagram_1f80-261.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427523/normal_602a2548cdeb0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/domegagowevag/40346709833.pdfIn PDF document text
    • http://gosaduzunake.myartsonline.com/frasi_chiusura_lettera_inglese.pdfIn PDF document text
    • http://xetibewiz.rf.gd/nonaminizipi.pdfIn PDF document text
    • http://zexamimese.rf.gd/do_air_fryers_take_longer_to_cook.pdfIn PDF document text
    • http://sapidobilebag.epizy.com/wafabavamozu.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/24650878620.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/aarp_membership_benefits.pdfIn PDF document text
    • http://giduzorim.epizy.com/butinodokufutuzibijiseje.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/vokitefepopepafejowosana.pdfIn PDF document text
    • http://sasaxunofob.atwebpages.com/daily_stress_inventory_questionnaire.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/37690676041.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED78 5216 bytes
SHA-256: 7e74aef123049e44880f061796826619cd94fec4ac7ac59fffb531eebf2e6bd4
font_01_sfnt_off0000ff3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF3E 10708 bytes
SHA-256: dd930e0a1363f57041872e35df85fd1ea88bce11fcffc2e230037e49f8a696ab
font_02_sfnt_off000123a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123A1 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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