Malicious PDF — malware analysis report

Static analysis result for SHA-256 13e05cb046927aa5…

MALICIOUS

PDF

77.4 KB Created: 2021-03-12 12:36:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d667fd8b2cec39dc5739a4b2416ddba1 SHA-1: 2b9844482c11d559f633b1773658b8761b3a661b SHA-256: 13e05cb046927aa578f03ce37f104f86a964606f124a953aea53edef286eeb47
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malicious content. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF structure suggests it's designed for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/award?keyword=atharva+veda+in+kannada+pdf+download
    • https://cdn-cms.f-static.net/uploads/4412767/normal_603403c0a580b.pdf
    • https://static.s123-cdn-static.com/uploads/4385014/normal_5fee771018d66.pdf
    • https://cdn-cms.f-static.net/uploads/4369646/normal_602cf8e8d2fd9.pdf
    • http://vajamerafimal.iblogger.org/finite_element_analysis_solidworks.pdf
    • http://pezigedires.22web.org/barron_s_ielts_vocabulary_free.pdf
    • http://pufujijixupoxo.iblogger.org/62823632081.pdf
    • http://puzezaxu.22web.org/object_oriented_programming_java_final_exam.pdf
    • https://cdn-cms.f-static.net/uploads/4451228/normal_6020b5c1078b2.pdf
    • http://jabisoj.22web.org/highway_capacity_manual_2016_knovel.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • http://suzurexitumafod.epizy.com/autocad_weld_symbols.pdf
    • http://fumesowira.epizy.com/durobawonesodalukibarofam.pdf
    • http://gebutetivifupa.epizy.com/merriam_webster_dictionary_for_computer.pdf
    • http://jurolabadujo.rf.gd/xowowok.pdf
    • http://damoserik.epizy.com/22633961560.pdf
    • http://validexa.epizy.com/jump_attack_minecraft.pdf
    • http://xuperag.epizy.com/rojogige.pdf
    • http://mogedolexit.rf.gd/timojojoro.pdf
    • https://a8a2d6b8-6248-42a0-90a4-e25e421c2e59.filesusr.com/ugd/f63f29_390a473e9b1c4e8aadccd2ba20a728fb.pdf?index=true
    • http://sipomivizipe.epizy.com/89438295503.pdf
    • https://921790ca-7b53-43bd-a25d-275d6f056404.filesusr.com/ugd/9d24cb_a665e77cd9e04046870aa60f5c29a8cb.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e14f.bin
254506a40abfe3438fb238135886236d95b41c3ddb4d139991cedfbfa227ef4b
pdf-font-stream PDF embedded font (sfnt) at offset 0xE14F 5156 bytes
font_01_sfnt_off0000f2ec.bin
678896a0540a33bbf14216006f40e6501c17ac35b5eefcf3b6be5fe700045dd5
pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EC 12308 bytes
font_02_sfnt_off00011be7.bin
c51bb53f4c5c63db8b22769ac3f9a81779bfa673e43469b94fefba3a84fb84e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x11BE7 3136 bytes