Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbe06e299e4fb0fc…

MALICIOUS

PDF

77.1 KB Created: 2021-04-11 20:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cee71976152e226533391244b6a5c31a SHA-1: dc299ddbbb5f919edc69b6c4a5c84810c0e8c66f SHA-256: fbe06e299e4fb0fc7f3d432d93cd554c325a74b87b5d7234a2eeee4ffac71f66
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an embedded URI pointing to 'jumiwimov.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a common attack pattern where users are directed to external malicious sites.

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://jumiwimov.ru/strik?utm_term=is+mars+heaven
    • https://cdn.sqhk.co/jebavimot/hhAgjhf/bow_target_shooting_arrows.pdf
    • http://alcexpress1.xyz/gun_strike_blood_shoot_game_downloadxwpgj.pdf
    • https://cdn.sqhk.co/sesijisova/ekhgiSZ/paint_by_numbers_online.pdf
    • http://feedbacrnz.space/eat_it_all_gifsvx8c.pdf
    • http://fotonagosuslugi-01.space/60864827881mblpv.pdf
    • http://qqkaxes.xyz/lepexozls73.pdf
    • http://gufutaca3.xyz/jaxovavifepajogauj5.pdf
    • https://cdn.sqhk.co/bimepefav/cif7aUY/flickr_unavailable_apple_tv.pdf
    • https://cdn.sqhk.co/wuxobilan/hHRQTha/gegugirimapowarizipala.pdf
    • https://cdn.sqhk.co/dapumexader/yjcGidm/xixiduv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/3be26ad4-6516-4483-abe7-b3fe59407b9d/what_does_gta_5_premium_online_edition_give_you.pdf
    • https://1e1f235d-56dd-4976-b20d-d38e3fe7b172.filesusr.com/ugd/210b45_6e043b7d61df44bebd81249e4a923105.pdf?index=true
    • https://s3.amazonaws.com/wobuzisibal/bteb_admission_form.pdf
    • https://35e1cc1d-5f6c-4a41-9b1b-b9ae8dddc97a.filesusr.com/ugd/351eee_ab05ff319a9a40439ab78a901a5d5774.pdf?index=true
    • https://s3.amazonaws.com/jezaxojipevu/rusomatire.pdf
    • https://cdfb6f36-dde2-4af5-b3b7-55ff39976061.filesusr.com/ugd/c6ac46_2368509ca10b43d1a933b8c420815d60.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d3cd2ba8-0f18-49c5-9d87-b4ccfaf95422/36232020900.pdf
    • https://154530d8-637b-49d0-b90a-43bf07a176fb.filesusr.com/ugd/59359a_01823f7b291048b6814088ce130fce89.pdf?index=true
    • https://uploads.strikinglycdn.com/files/4306e892-f664-4d27-a9fd-20bac6066974/what_literary_devices_are_used_in_the_tempest.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f154.bin
cc685349c075e54e348d61d00dd2de1fde71631216f204ad9abb2ae5355d9539
pdf-font-stream PDF embedded font (sfnt) at offset 0xF154 4892 bytes
font_01_sfnt_off000101cb.bin
519e4fb5a0db6352aad249d2868eb7f7c72e3b82317f2b5d3c40b1a75cc04736
pdf-font-stream PDF embedded font (sfnt) at offset 0x101CB 11052 bytes