Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1595bd526e869b…

MALICIOUS

PDF

80.8 KB Created: 2021-01-05 08:39:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: eb75f56b1946ee8f86baf22a52c812b2 SHA-1: 5c8708468be2ed1baf32835402415122b1a2cc12 SHA-256: ae1595bd526e869bfcf8414505608eb8a10970a9240ffe7fbd9ff8a4d20fd5f2
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into downloading further malware or visiting a phishing site. The document body, though heavily obfuscated, contains references to 'Helena build summoners war', suggesting a lure related to the game Summoners War.

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://traffset.ru/123?utm_term=helena+build+summoners+war PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449004/normal_5fe9092bd36f9.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
    • https://uploads.strikinglycdn.com/files/30c9f6be-7a19-4e98-bb61-4b5b2dafe0f3/swami_kadambari_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3660ba0-fb71-43b4-a168-be590d3e905e/mons_palace_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cf82abe-0ebe-4906-93b0-7edc0172001d/68363669834.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61399d4e-34af-451f-a12e-f75f7e07f8eb/ddo_artificer_bonus_feats.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ff6d51-172d-4b1e-8f28-9369cd2ec450/rufuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbdd39e7-e883-401f-b055-a0a4121aab9f/rekupegudevezunabuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4144751c-9b75-4ec2-b18e-f3d03916d2b4/study_guide_for_animal_farm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed33683f-093a-469d-a6c5-4f00055e80b7/download_adobe_cc_2017_full_crack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4bb4ff1-46cb-4391-8d47-dc5326e62c22/73169127799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77355d16-4680-47da-ba0c-b1d98ccf5511/12724939163.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/joni_mitchell_river_sheet_music_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98e0a7f4-0a6b-42c1-abf1-648f6e46cd38/60290832771.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef812d5c-c7e5-45ce-aacd-194204dc86b5/1033044049.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBD 4968 bytes
SHA-256: 459235798b8c0abac58f7236ee870651bd85b5d3b3e546122bd689c9f0d9dd3f
font_01_sfnt_off0000ec79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC79 11220 bytes
SHA-256: 186866a6d03e357557c7e43a8153a0cbb7e48be3a12595ad2bf63bdcb7170eba
font_02_sfnt_off0001133a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1133A 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2
font_03_sfnt_off00012801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12801 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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