Malicious PDF — malware analysis report

Static analysis result for SHA-256 b044142f9b6bd459…

MALICIOUS

PDF

68.9 KB Created: 2021-03-03 14:17:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: aa6bb52b1f32dbd0b2e87e3fdece3517 SHA-1: 5be083268220933e2e99676d8eed07ad4752539b SHA-256: b044142f9b6bd4590814fa4186eba854982fb10858436f9a567ceb76d82a6b05
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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+make+a+water+table PDF link annotation
    • http://sowopezamiw.medianewsonline.com/30396920891.pdfIn PDF document text
    • https://cdn.sqhk.co/redusebi/LJhixjh/best_ever_racing_driver.pdfIn PDF document text
    • http://websporizle4.com/activex_control_iej1khh.pdfIn PDF document text
    • https://cdn.sqhk.co/nexetifosam/9hjhgh4/police_counter_terrorist_shooting_fps_strike_war.pdfIn PDF document text
    • http://gudokav.sportsontheweb.net/pawelolukafo.pdfIn PDF document text
    • http://torchland.xyz/6372156800331x5.pdfIn PDF document text
    • http://kerutugizuxig.mygamesonline.org/wadonodabu.pdfIn PDF document text
    • http://hotloveme.online/novajovusakojufoxitilun48ocj.pdfIn PDF document text
    • http://fezibinuzot.iblogger.org/dovovirirubalale.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/litunux/98203035727.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/2096782010.pdfIn PDF document text
    • http://rozazidugo.epizy.com/day_bang_roosh.pdfIn PDF document text
    • http://tadufadimokoje.epizy.com/fumena.pdfIn PDF document text
    • http://pilomewolax.epizy.com/baxuvevilatanis.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/boukenger_vs_gekiranger_sub_indo.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/45586354043.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_off0000c57c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC57C 4544 bytes
SHA-256: 6bc1e05e2922a9a6b171ebec4615cbc489e7fb0a1f25dbd2d36fce46411d20c5
font_01_sfnt_off0000d4f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F5 10448 bytes
SHA-256: 9a079eb9c9bda316c309e53f76aa71858fb397974ba792f052014aa4119cfcb5
font_02_sfnt_off0000f8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C0 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e