Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae23026d78bb4cf9…

MALICIOUS

PDF

78.0 KB Created: 2021-02-17 00:52:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: ea98dfc6caa24ba6592e5994b023cab4 SHA-1: 4006f843760a8e5ec75f68bd04c0db290ac03e67 SHA-256: ae23026d78bb4cf97134e60170f9f870b2ceca0187c17491b96298ac0e6c3cf4
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing campaign. The document body, though heavily obfuscated, suggests a lure related to 'Myers briggs types chart pdf', indicating a social engineering attempt to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/strik?utm_term=myers+briggs+types+chart+pdf PDF link annotation
    • https://cdn.sqhk.co/gabadifofibo/4ii4bQH/zumaxetalurokubuviluze.pdfIn PDF document text
    • https://cdn.sqhk.co/fekurisakez/gjSNhf9/lepexamesixidef.pdfIn PDF document text
    • http://ductsunlimitedins.com/sotizikimewuzuxis4d24k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485436/normal_5ff0b0211752f.pdfIn PDF document text
    • http://obsluzhivanie-kompyuterov.moscow/physiology_cardiovascular_systembcfcx.pdfIn PDF document text
    • https://cdn.sqhk.co/salobosemiv/diaidhb/fugugajalanakedor.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/b2JJjbG/download_game_3d_rollercoaster_rush_new_york.pdfIn PDF document text
    • http://instapriz365.online/stihl_hedge_trimmers_petrol17k6o.pdfIn PDF document text
    • http://energierecrute-emplois.com/vudavobijnhcp5.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/lorifumofelu/mozilla_firefox_nightly_free_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/61963697319.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/1627050832.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/international_dependency_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/wishing_well_nursery_bingley_ofsted_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/53136317033.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/vivavideo_pro_video_editor_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/jomusirogi.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_off0000f430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF430 5632 bytes
SHA-256: 6137a11620b55e358a074fd5270b42b7ca2b1a64533db0bec16b13afd765af94
font_01_sfnt_off00010765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10765 10496 bytes
SHA-256: 66ae615442f6c0c84518b0c114441dc9ec0c98d05231a76b70af794c598f08f2

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