Malicious PDF — malware analysis report

Static analysis result for SHA-256 a65c0f67b1fb26f8…

MALICIOUS

PDF

87.4 KB Created: 2021-03-19 09:28:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4373f375140999ba99f67e6cbb89b34 SHA-1: d7f673724176a777846eb176393f43b1f1309c5d SHA-256: a65c0f67b1fb26f8ba74d7eced735fd3f28a6c8be319a7acb327030e14990daf
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or malware. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Radical acceptance tara brach youtube'. No scripts were extracted, but the presence of an external URI and the overall detection profile suggest a phishing or malware distribution attempt.

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://vilenefex.ru/strik?utm_term=radical+acceptance+tara+brach+youtube
    • https://cdn.sqhk.co/redusebi/jbHJx7x/iot_architecture_3_layers.pdf
    • https://cdn.sqhk.co/nujidegowupi/hgOk5ic/dwyane_wade_net_worth_forbes.pdf
    • https://cdn.sqhk.co/goxobuve/rmigehj/nojodaxovigudo.pdf
    • https://cdn.sqhk.co/sadirorig/gjVT3x1/xusipumajawagew.pdf
    • https://cdn.sqhk.co/vatepasoxi/e0licl0/video_to_audio_converter_app_apkpure.pdf
    • https://cdn.sqhk.co/luzigagoguna/4HjchfQ/punoraxozogipikom.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://b23183eb-b2e5-455e-bc25-91fac1efd10f.filesusr.com/ugd/cc14e4_b1d1732c830c4bc7a94b98c06674bf48.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e683bfb9-d5f5-4160-ac2d-f75876e19bcf/20261868862.pdf
    • https://fb413987-6e77-4bf1-aaa6-e97eb550fbee.filesusr.com/ugd/108936_47c183f049834155b50a30fa17533a23.pdf?index=true
    • https://s3.amazonaws.com/fasomusogapovi/60596154405.pdf
    • https://s3.amazonaws.com/silubebebefuju/catholic_bible_concordance_online_free.pdf
    • https://uploads.strikinglycdn.com/files/dcb4eadd-72ab-4209-9b49-a834ddb84425/90871021644.pdf
    • https://uploads.strikinglycdn.com/files/c50a6d1e-aa85-4a75-8749-01064d4a0e50/gonosenige.pdf
    • https://s3.amazonaws.com/xalexojaxipud/28410826416.pdf
    • https://uploads.strikinglycdn.com/files/d6e449cd-4c36-4fed-86fd-2ede35953b93/quelques_connecteurs_logiques_en_anglais.pdf
    • https://02ee9779-94d6-4ec7-959f-c0f99fe19a35.filesusr.com/ugd/cdc607_0b6e63452a384bb8b3a99bb1e4256b2e.pdf?index=true
    • https://s3.amazonaws.com/jusagi/how_to_make_simple_ice_cream_at_home_in_tamil.pdf
    • https://e5720c39-3c1c-4a52-9be9-509675281b5a.filesusr.com/ugd/0010c8_d4b7cac2623b4d6481e149ddf6f4e0c1.pdf?index=true
    • 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_off00011a11.bin
98b5af28729eb7dfd9c86dea9bbf3fa8cd0c7c8ea7954530d9e9b2f1529930ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A11 5232 bytes
font_01_sfnt_off00012bdb.bin
fd3c5efbb2674eb746d8ec99f52167790b1ebad82bb139f1149187ec238805b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x12BDB 10620 bytes