Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4a1d32c2bad253e…

MALICIOUS

PDF

73.6 KB Created: 2021-02-22 03:18:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 654de079748e589daba71e538ad7dafb SHA-1: 4d4b05b2bde3624cfc9e782159dfb42e7c126c9e SHA-256: a4a1d32c2bad253ed7f31ddf11632d0d93a6733e1bac8bc07d51e12597de9f36
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://baarspo.ru/wix?keyword=idle+monster+tower+defense+guide PDF link annotation
    • https://cdn.sqhk.co/mekoposa/jb8igjb/drag_racing_wheels_6_lug.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/hi3zidJ/78859393643.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/hiibhjM/ping_pong_ball_size_hail.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/cB2NsfZ/23202790817.pdfIn PDF document text
    • https://cdn.sqhk.co/duzemata/gHiajfO/farmville_2_country_escape_unlimited_keys_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/dhivXux/71506154777.pdfIn PDF document text
    • https://cdn.sqhk.co/tifapoxur/K2kjgE0/project_management_software_for_mac_and_windows.pdfIn PDF document text
    • https://cdn.sqhk.co/ketusugedi/cjdkYuz/97974486030.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/dgcFbjf/denekosedadiduxida.pdfIn PDF document text
    • https://cdn.sqhk.co/vilitemeru/wjeKjjq/free_rough_diamond_price_calculator.pdfIn PDF document text
    • http://zunikezat.22web.org/99770637197.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/a6hjyPK/city_racing_lite_uptodown.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/ej8hejg/47437539740.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwetebep/ijjbJid/roxowujawaxitipigiru.pdfIn PDF document text
    • https://cdn.sqhk.co/tatogevi/iieijhf/430643919.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lozebaloporan.epizy.com/clash_of_clans_october_2019_update.pdfIn PDF document text
    • http://timaroxakex.epizy.com/nidomolunagefevikifiwema.pdfIn PDF document text
    • http://vulekagezefodek.rf.gd/zipibapit.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_off0000e45d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45D 5048 bytes
SHA-256: daaf1d129d331713c854f3433f5869e966438bdda09d377c993bc3d0e250e5cb
font_01_sfnt_off0000f589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF589 10324 bytes
SHA-256: b754546307bf85fab37ee98a06cb1895d142b67949550547083ac2d9dc3c3112