Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc732b733c036ed4…

MALICIOUS

PDF

78.2 KB Created: 2021-03-15 11:19:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d90a2b7d28908c52bda2f6d53061f950 SHA-1: 899e5aa654c5a7badfeabfd442d72c7530db4813 SHA-256: cc732b733c036ed4979097247db9a5d1ec89ed7e9780a5e2996b01c0494b25bb
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document body, though heavily obfuscated, contains references to 'Grand theft auto 3 ps4 trophy guide', suggesting a lure. The presence of numerous external URLs, including one pointing to 'lozipotod.ru', indicates an attempt to redirect the user to a malicious site for further exploitation or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/123?utm_term=grand+theft+auto+3+ps4+trophy+guide
    • http://riwaxutitono.iblogger.org/never_not_a_lovely_moon_the_art_of_being_yourself_caroline_mchugh.pdf
    • https://cdn-cms.f-static.net/uploads/4379613/normal_6038782be6ee8.pdf
    • http://duplicwcnj.space/nigab5u6rz.pdf
    • http://yazansoft.com/74744672727jmqg5.pdf
    • https://cdn-cms.f-static.net/uploads/4366341/normal_602800ff1d5a1.pdf
    • http://how2clever.com/formato_tesis_doctoral_uvaybnf1.pdf
    • https://cdn-cms.f-static.net/uploads/4388060/normal_5fdac880dfaa5.pdf
    • http://jakartapro.xyz/buwepajiforuvwrve7.pdf
    • http://segwaywheelchair.ru/mopepelisaligibokiponimo54t1v.pdf
    • http://pressit.space/fluke_pro3000_review52p4k.pdf
    • http://pupoxiweluzuvem.22web.org/11518796482.pdf
    • https://cdn-cms.f-static.net/uploads/4452152/normal_6020bb1f9fe01.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://gonoluripep.rf.gd/newtons_second_law_for_circular_motion_equation.pdf
    • http://polexunew.epizy.com/tasesokasad.pdf
    • https://580b68e3-2104-4118-ae5b-4f285de1c062.filesusr.com/ugd/dad7b5_0aff7ad8d0a54d308ff715ebef203898.pdf?index=true
    • http://vorasiwusiga.epizy.com/stihl_fs90_carburetor_adjustment.pdf
    • http://webubekesivamuf.epizy.com/mojova.pdf
    • http://vabijikabijapul.rf.gd/34203038434.pdf
    • http://dinopug.epizy.com/fccla_planning_process_template.pdf
    • https://1e1f235d-56dd-4976-b20d-d38e3fe7b172.filesusr.com/ugd/210b45_1dfd6924c2394352a57faafd34605ef2.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_off0000e438.bin
bd8ff54c5ecd407954708605ff3a6320a8d03e6a4d26d8861d70c6905f5d44db
pdf-font-stream PDF embedded font (sfnt) at offset 0xE438 5540 bytes
font_01_sfnt_off0000f714.bin
20e3aa8c34d243bb27bbb1090c31018e99014e0c7c1650b7f7b2e2eedd1adcc5
pdf-font-stream PDF embedded font (sfnt) at offset 0xF714 10684 bytes
font_02_sfnt_off00011baf.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x11BAF 4324 bytes