Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e19b00232af8de0…

MALICIOUS

PDF

269.1 KB Created: 2020-11-19 13:16:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b852af86fb2ab7b099566595d1041c2d SHA-1: 996eb8e4d4e68d4ee6e205f919372447a1a30270 SHA-256: 1e19b00232af8de087848497b13faca0d2b8f6c343e1f7c13defc32f3688c939
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'traffset.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Mega man mugen characters'. No scripts were extracted, but the presence of an external URI and the overall detection profile strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://traffset.ru/strik?utm_term=mega+man+mugen+characters
    • https://nogegonimever.weebly.com/uploads/1/3/4/3/134340032/4378182.pdf
    • https://cdn-cms.f-static.net/uploads/4373997/normal_5f8911b334428.pdf
    • https://fadevigobawu.weebly.com/uploads/1/3/4/3/134346767/gojawazutorufis.pdf
    • https://cdn-cms.f-static.net/uploads/4366004/normal_5f87020b57a70.pdf
    • https://cdn-cms.f-static.net/uploads/4473035/normal_5fadbce7606db.pdf
    • https://cdn-cms.f-static.net/uploads/4385020/normal_5f98212088267.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/1f341d25-e3e1-485f-9620-b062a92d9af4/famatizadagaburivap.pdf
    • https://s3.amazonaws.com/rebesudanolo/14189301170.pdf
    • https://uploads.strikinglycdn.com/files/80581b5a-a08c-43fe-a3cc-7bf0ab03f7f3/thin_ng_tng_my_th_8.pdf
    • https://uploads.strikinglycdn.com/files/de102e1b-a203-4e24-a607-48d24e4a2554/a_bluestocking_guide_to_economics.pdf
    • https://uploads.strikinglycdn.com/files/27b82128-9f1a-43e4-9f85-479dd81edaf9/xinowu.pdf
    • https://uploads.strikinglycdn.com/files/322b2cff-e79e-4e2c-8fbf-10fb5f5e2580/rogavujuvi.pdf
    • https://s3.amazonaws.com/wiwuxot/puraxusabofafebowu.pdf
    • https://uploads.strikinglycdn.com/files/b33cead5-5ce8-4c1e-93a0-d95c50f06c24/the_100_dollar_startup.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003af4d.bin
eccd9fb6e2d7645abbe96da6ca77d6957ff9478c7385323edbb5b3b7b47333ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x3AF4D 19384 bytes
font_01_sfnt_off0003ecf6.bin
bc0ef0acc3a6823bd80b41d06e489e481d5964e8bb87d4d02a7b9a66e83896cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x3ECF6 5184 bytes
font_02_sfnt_off0003fe7b.bin
758df064e146a36f682fed722993aa8e45f9bd1b6abc1323cbd567b5ff57d9dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x3FE7B 12088 bytes