Malicious PDF — malware analysis report

Static analysis result for SHA-256 038cce525547496a…

MALICIOUS

PDF

79.4 KB Created: 2021-05-19 23:03:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 575a6d9a3009660372ea708897ffad94 SHA-1: 25392f64a3f09f9ff8f03caf988dad4a530d203c SHA-256: 038cce525547496a46dedb1e3982bcdcd499989268bfaa10220d99d5d4553c18
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to "mobile legends mod apk 2019 unlimited money and diamond android 1", directing users to a suspicious URL. This URL is likely intended to host or redirect to a malicious payload, such as an exploit or malware downloader. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://dafemum.ru/strik?utm_term=mobile+legends+mod+apk+2019+unlimited+money+and+diamond+android+1
    • https://cdn-cms.f-static.net/uploads/4448096/normal_602ec8addc88c.pdf
    • https://cdn-cms.f-static.net/uploads/4481067/normal_60121d5cec2b9.pdf
    • https://cdn-cms.f-static.net/uploads/4463794/normal_5fd1d7c4cdf83.pdf
    • https://cdn-cms.f-static.net/uploads/4448995/normal_604515a9ed033.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/4b8918d7-8f0a-42cb-8e72-daf4f6edf078/examples_of_quantitative_research_methods_in_sociology.pdf
    • https://uploads.strikinglycdn.com/files/cbe1daf0-1194-43ff-b1e3-98ba6fa155b6/wendys_fries_nutrition_label.pdf
    • https://uploads.strikinglycdn.com/files/77473749-8145-441d-9f17-df318fe26e58/meaning_of_estar_como_agua_para_chocolate.pdf
    • https://uploads.strikinglycdn.com/files/3d748acd-0ae6-4036-9eba-595695e4342b/49944826361.pdf
    • https://uploads.strikinglycdn.com/files/3074f151-3482-4f4c-bf65-3138213129f2/83344223083.pdf
    • https://uploads.strikinglycdn.com/files/a2b765db-26f9-4968-8122-49350f9ee8b0/area_and_perimeter_of_rectangles_and_triangles_worksheet.pdf
    • https://uploads.strikinglycdn.com/files/89275280-f20b-4b15-92e7-fe7839e815dd/coleman_powermate_3000_generator_manual.pdf
    • https://uploads.strikinglycdn.com/files/38d4cfa5-f6b9-40ef-98e8-53af18cedb23/craftsman_lt1000_carb_adjustment.pdf
    • https://s3.amazonaws.com/wuzalugiseto/54157142125.pdf
    • https://uploads.strikinglycdn.com/files/1f9fb2a4-63c7-4b39-ac4f-1b33eb28ef15/understanding_business_and_personal_law_student_activity_workbook_chapter_2_answers.pdf
    • https://uploads.strikinglycdn.com/files/3d50dd61-a871-479a-a927-67e303235aa4/42855492377.pdf
    • https://s3.amazonaws.com/zafijukopa/62598555562.pdf
    • https://uploads.strikinglycdn.com/files/cc38170a-8df4-4d37-9dcb-091bdff5f052/23545903674.pdf
    • https://uploads.strikinglycdn.com/files/f9aa13bf-a602-4ea6-8166-984f1209266a/how_to_put_pictures_on_top_of_pictures.pdf
    • https://uploads.strikinglycdn.com/files/455aa743-a7be-4d04-b6da-5c04ccfdda2c/92085984528.pdf
    • https://uploads.strikinglycdn.com/files/5141c4db-38b5-4777-b96e-d1ed950ce934/can_every_living_thing_die.pdf
    • https://uploads.strikinglycdn.com/files/1c422b9d-0275-407f-bab8-fd0de9e2e814/battletech_mods_steam.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f627.bin
df0af02c6c35dae40e6437438dd70e0fdd8c2e5ea90e5bbbf65163cd5d2dfe3b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF627 6072 bytes
font_01_sfnt_off00010acb.bin
fdbe521a153cc9ebb01af1d8b22c4bb8d261107b7587231b29604602c7960317
pdf-font-stream PDF embedded font (sfnt) at offset 0x10ACB 10712 bytes