Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0df05ee278633b…

MALICIOUS

PDF

120.0 KB Created: 2020-12-23 03:18:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 68633497e93dfb3f5806934eae0bd625 SHA-1: d8e0ec11b25eb98a8f9554308b9f0074582864a3 SHA-256: ea0df05ee278633b81765a98e7bfdba62ba919ae94a0ae181029e5420ce3fbc6
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure and a machine learning model outputting a high probability of maliciousness. The document impersonates Facebook and uses urgency lures to trick users into clicking the embedded link, which leads to the malicious URL. The ClamAV detection further confirms its malicious nature as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://gettraff.ru/strik?utm_term=bloons+td+battles+download+free.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://gettraff.ru/strik?utm_term=bloons+td+battles+download+free In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc4dea13398ff7515474161/t/5fc6ccaf3ac9c763f4c2e47e/1606864048294/82605723431.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99b30d1b-f17f-44bd-a9a2-d526e0662c48/datiwal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d795eb37-6214-4496-bfdc-f55d8ff5399f/vozedised.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc562fe40f1034a5cc6d69f/t/5fcc458605ddc9599d15496f/1607222667095/protection_of_the_flag_amendment.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/8820288580.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da89acbf-f96f-4817-916a-a3b7eccba5ad/26417430597.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c103614-526b-4b24-b66f-11c492ecfafc/first_touch_soccer_2015_apk_mod_download.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/pokemon_dnd_podcast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9aab93c7-e309-4c38-ae4f-cd489a817146/pyle_backup_camera_wiring_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30bf03a0-32f9-4207-b2b6-8210d0743b5b/66228744342.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/stratiform_meaning_in_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cf248a8-5849-4d8f-9838-5dd40c6fac67/mekasasiwozotar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41a1e117-fc47-4300-83d8-9a5b87df7c8f/vasefu.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_off00019b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19B14 5184 bytes
SHA-256: 4cb7fefb7a16b3774379def30cf528508f60dfdb1e73cac5a8a56fb81f3225a0
font_01_sfnt_off0001acd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ACD7 11256 bytes
SHA-256: a5c70b0fcc638a13a5dcb51c394714f6ddc91432f18ce35b8564451ad5601b2d

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