Malicious PDF — malware analysis report

Static analysis result for SHA-256 88fe11e8f6991aef…

MALICIOUS

PDF

67.8 KB Created: 2020-12-23 00:40:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ff0df8290f40c8016784d02ddfb05cea SHA-1: 5bac3f5e3735b7f95e096d6f4ba8c6b40a744021 SHA-256: 88fe11e8f6991aef1a524a37238bf65ddd6b9e027fb1a0a54024be2ab1cd26d4
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-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://trafffe.ru/strik?utm_term=peacemaker+sims+4+brindleton+bay PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fe26f848142496b9bb69c4a/t/5fe27587d6737c201f58403c/1608676745393/fikebatatovazemalowenire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15e2be35-9c66-4079-8f0e-05217ae5ba10/jirajovozukopubozevuzajox.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/black_and_decker_waffle_maker_instruction_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6708eaf-1059-40af-a196-728607927ffb/san_antonio_classifieds_rooms_for_rent.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0bebbcd1e280355d37542/t/5fc1b3315147b1480472d7a1/1606529842370/ranaramo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/744d62cf-3760-4966-a0e7-10d2ae34ad1a/75915324953.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4605ec4b-5cc5-4e14-8138-8322498bb59f/sintesis_aditiva_y_sustractiva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c64c8dd-5b4c-4333-b7ec-c60b554aee20/kitugerotopaluzatuga.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/bautismo_en_agua_cristiano.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc27b7e60f2895dc1f1e23b/t/5fc548d0173fb5383b517757/1606764752598/wolfpack_one_card_photo_upload.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/18986180986.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/32519234534.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_off0000c7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D1 5480 bytes
SHA-256: 222a5c6805aa8070004a2f51c35b52cd975ef55cc2ec747cbc74727f2e7ad0b3
font_01_sfnt_off0000da6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6E 12452 bytes
SHA-256: 5f13abfe677bccec6c56e69bffd485c308631086fab13b28938b1c69ce300c7d