Malicious PDF — malware analysis report

Static analysis result for SHA-256 da7261892959c931…

MALICIOUS

PDF

73.1 KB Created: 2021-03-21 01:20:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 6855c7502889c8443bd8d9e80238eec5 SHA-1: 50ee95dc79b0b59aa978735fdbdc38426c433f95 SHA-256: da7261892959c931cd0f079fc1552762524c08a3680dcf87c107d51de5892e96
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://druttle.ru/123?utm_term=regina+public+school+board+annual+report PDF link annotation
    • http://cryogen.me/1391352570520gbp.pdfIn PDF document text
    • http://topcreditcheck.info/irobot_braava_m6_robot_mop_reviewsjf5sv.pdfIn PDF document text
    • http://d-youtube.com/metro_2033_redux_walkthrough_dead_citycv98k.pdfIn PDF document text
    • http://8gusevshop.space/fevutkeaqt.pdfIn PDF document text
    • http://bu-markett.com/3291758663cyvtj.pdfIn PDF document text
    • http://kprovk.xyz/hp_p1606dn_wifi_setuprhwro.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/lolaritemukole/muvalusi.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/ragapigirijumazujamupiwaj.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/what_color_does_red_yellow_and_white_make.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/92114894975.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/ketevaxevik.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/fazenatexojerogogux.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/tujasobatufesun.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/starfinder_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/begugisegozagosawadiw.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/sejop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7af9a0a1-0f85-4a47-a6fd-bf983b40b80a/harry_potter_editorial_salamandra_bolsillo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdf93bff-c67f-4522-81e6-2980d5f5ce09/how_to_openline_zte_pocket_wifi.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_off0000e046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE046 5484 bytes
SHA-256: 57bbcc38661fb8333f1bdf2218a20cde3666bb540e2d016727090dc3fe153f3b
font_01_sfnt_off0000f2e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E0 10764 bytes
SHA-256: 993ecd54fd26a7b2df6f6d084557a0fc4ffbf370ce91db304e592a6f867e37f2