Malicious PDF — malware analysis report

Static analysis result for SHA-256 10338307c5d34324…

MALICIOUS

PDF

163.5 KB Created: 2021-03-14 09:40:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09c690b04989c0be1ef09412143fe002 SHA-1: 3db5091c9b6e001ee9c9f369756caf1cd1aa9ad6 SHA-256: 10338307c5d3432487f25d30ab4819c723ebce7973a5071e482b558eb668bbcd
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://xezojetit.ru/wix?keyword=elvenar+strategy+guide', which is likely a phishing or malware distribution URL. The document body, though heavily obfuscated, suggests a lure related to 'Elvenar strategy guide', aligning with a phishing or social engineering attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/wix?keyword=elvenar+strategy+guide
    • https://cdn.sqhk.co/gopilufifeda/eNEpPih/cannon_shooting_story.pdf
    • https://static.s123-cdn-static.com/uploads/4492250/normal_5fc572a00c76e.pdf
    • https://cdn-cms.f-static.net/uploads/4408993/normal_600f8a12e5428.pdf
    • https://cdn-cms.f-static.net/uploads/4470679/normal_5fd26b5e9e06f.pdf
    • http://pugisapi.mypressonline.com/nudekufuxeju.pdf
    • http://kvyovk.xyz/after_book_series_box_setsiu3c.pdf
    • http://monstergym.ru/setagasewupapikem165n2.pdf
    • https://cdn.sqhk.co/posogamumut/hBkNvzi/30165996768.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/856ed8f3-8193-40c9-9afe-8e69e126c015/dinimogunetufe.pdf
    • https://uploads.strikinglycdn.com/files/96a7348d-1e86-4246-848b-a1ff8334a471/xapanip.pdf
    • https://uploads.strikinglycdn.com/files/4347c9ae-b64c-4c1a-a6d3-23513285948e/wedur.pdf
    • https://569961a5-e6b5-462d-8b38-7193d5e7b20b.filesusr.com/ugd/a37a2e_8a84ef43d981453f90f85206e724bd0a.pdf?index=true
    • http://vovakupalujum.onlinewebshop.net/88641016092.pdf
    • https://uploads.strikinglycdn.com/files/e8ba85ce-78a4-4072-88c0-77efb4dbecd9/how_much_does_a_nba_sports_agent_make.pdf
    • https://88211235-bf86-4d40-a6ec-a052db2f682e.filesusr.com/ugd/94e5ef_82f8470926094b84ba3bc10132519455.pdf?index=true
    • https://b86313a8-447b-404d-ae6d-bc69740d899e.filesusr.com/ugd/e54fc7_deb1a54d499d455aa25e8f9f77df9ece.pdf?index=true
    • https://uploads.strikinglycdn.com/files/74003c2c-2c78-44fa-b22f-426cb7804ea3/how_to_see_log_table_in_hindi.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_off00024a48.bin
216f0480384ba5badec545074bf2d3388d64650628c9a39aab1ea9533f6a82e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x24A48 5112 bytes
font_01_sfnt_off00025bca.bin
5fe60f95b3c820cb32849af51131c6feef8ab65c382eeae0c6b202c95d5d488b
pdf-font-stream PDF embedded font (sfnt) at offset 0x25BCA 10912 bytes