Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1061b88b1a82efa…

MALICIOUS

PDF

74.8 KB Created: 2021-02-22 23:21:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1b362f54abe45efbe5f61e8580f0fe76 SHA-1: d18dc5d3d0616774784b5b0906b26cefa92d34c2 SHA-256: e1061b88b1a82efafae31152e0b17235cc3697f91da3b0609ea3ba541c6fa1c5
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 0.9996

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://druttle.ru/123?utm_term=who%2527s+afraid+of+virginia+woolf+streaming+free PDF link annotation
    • http://rabuvuz.22web.org/speed_queen_washer_and_dryer_coin_operated.pdfIn PDF document text
    • http://wabuxon.iblogger.org/yanny_or_laurel_right_answer.pdfIn PDF document text
    • http://ryduslim.website/gizowubimolasobodonokxfq1.pdfIn PDF document text
    • http://tofabukusakuni.22web.org/soxewasidono.pdfIn PDF document text
    • http://neyroskakalka.site/bimidopobudosiq3ys.pdfIn PDF document text
    • http://kibasemenatax.22web.org/how_many_calories_are_in_a_taco_bell_bean_burrito_fat_grams.pdfIn PDF document text
    • http://wimilarudiza.iblogger.org/58730801419.pdfIn PDF document text
    • http://ninureluxoxanu.22web.org/gre_test_dates_2021_nj.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/fotepopunaj/compartment_syndrome_guidelines.pdfIn PDF document text
    • http://diruxepuf.epizy.com/89987752662.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/9125571672.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/1609443113.pdfIn PDF document text
    • http://rutotonofawe.rf.gd/rojoxiwaxitinitesexifipim.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/mac_os_mojave_hackintosh.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/bofaxirikux.pdfIn PDF document text
    • http://jimulopipuxofom.rf.gd/jijuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/1000_basic_english_vocabulary.pdfIn PDF document text
    • http://mefadagisi.rf.gd/15610850574.pdfIn PDF document text
    • http://selofedibaxonal.epizy.com/24658033750.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/javirosaxuroxukixojo.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/kyle_landry_inochi_no_namae_sheet_music.pdfIn PDF document text
    • http://jabepujun.epizy.com/batching_plant.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CB 5520 bytes
SHA-256: ac8201a098a62f0ce015d6d6332cad9f710f2700e06cf940def914c2fb185bde
font_01_sfnt_off0000f78c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF78C 11100 bytes
SHA-256: d9441566f9c676fce9b5684db6b3f2252777fead8b87b913253831a4dfe1eae0

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