Malicious PDF — malware analysis report

Static analysis result for SHA-256 db352b5f3182846a…

MALICIOUS

PDF

88.8 KB Created: 2021-02-28 13:18:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5501413b59771f5c1e56700d3148bc79 SHA-1: 54aad65de04342e33f8a544066d1bd081eaa8fde SHA-256: db352b5f3182846a9666e129959cf7c813efa6258d0da3ddde51c260af23a7b9
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a site that appears to be a lure, disguised as a service manual, to direct users to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through social engineering, likely leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/wix?keyword=samsung+wf330anw%252Fxaa+service+manual PDF link annotation
    • https://cdn.sqhk.co/jesovolavig/agheqjh/wifar.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/iigjWgg/fc_bayern_munich_players_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451750/normal_601548dabd518.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409113/normal_600fe7079f047.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368494/normal_6030dc86c7944.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/8gdgi5n/hide_all_files_on_desktop_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/feletitami/hj8jfy9/idle_champions_forgotten_realms_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/refowofiros/dgfijia/23850849144.pdfIn PDF document text
    • https://cdn.sqhk.co/tofatuxurejo/hE7he3n/simuboxelitewenemododi.pdfIn PDF document text
    • http://belugol.22web.org/lodaripida.pdfIn PDF document text
    • http://tifalez.iblogger.org/jexegimi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://vagekuzoxovav.epizy.com/86629616512.pdfIn PDF document text
    • http://tonezifimoraga.epizy.com/transformers_5_barricade_mustang.pdfIn PDF document text
    • http://domusas.rf.gd/deledititulufukelekimutuj.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001083a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1083A 5556 bytes
SHA-256: 4c553de1bef436bc58729c79ae41a1df1a8fc2364b1cd2f150028879f5ff5163
font_01_sfnt_off00011b13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B13 2224 bytes
SHA-256: c84bafe0f6818987e6ef43d5ffe1713867fb0382fcb965a6ba754f23732bcda7
font_02_sfnt_off000124c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124C6 10152 bytes
SHA-256: ab530f1b296ed0d58cb84c4735f0fcaa314d2fb690b546837e97319a9003b7ff
font_03_sfnt_off00014785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14785 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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