Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb624fb4883e42de…

MALICIOUS

PDF

80.8 KB Created: 2021-03-17 04:35:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ae07e4e31c7c56e91d49092167118fa5 SHA-1: 95042cf2e56aaba0fa6df13b8690bbbdbcbe36bf SHA-256: eb624fb4883e42de712f402beee635f3e86385e72f5cfff30b89c526ff6d8169
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://mezovuduw.ru/123?utm_term=malayalam+story+for+childrens+pdf PDF link annotation
    • https://cdn.sqhk.co/xenaporo/RieoIDi/53911306787.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457005/normal_5ffb079197062.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426090/normal_5ff65eb83f8b3.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/jipihLG/wumupapegalosukovope.pdfIn PDF document text
    • https://cdn.sqhk.co/gofuzurafano/7B8ihVI/68566866706.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385424/normal_5ff33fdcd8a3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445888/normal_602e0970af2ce.pdfIn PDF document text
    • https://cdn.sqhk.co/gonolesuzam/4oMG9iZ/nintendo_3ds_xl_gold_edition.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/jigfbnU/dragon_city_hack_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/wifinalimow/gDtDggs/call_of_mini_double_shot_hack_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405899/normal_5ff8db4c5d29b.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/b6Yigdq/fast_notepad_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/namaboniki/gehftji/it_floating_balloon_light.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381748/normal_60374f1855b08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421476/normal_60512b7b9cc37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403259/normal_5fe8b9585bbbb.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/e27149b0-33f9-4c60-890a-84f42893784d/88264921551.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73e3e9e8-a770-4064-9b42-0adf4ad45280/css_table_cell_width_percentage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c14bbef0-c65e-4367-98af-50b0841521af/failure_to_record_accrued_interest_expense.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b8cc65f-ec3a-4d15-9415-8842aa06faf5/asus_maximus_vii_hero_bios_flashback.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a38519b5-0504-4d70-a7a9-3492eac91f8d/89017518556.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d47a7b5c-7c1b-4397-bf21-8dd4b4e939a1/fasuwugedizikumu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE8B 5288 bytes
SHA-256: 5675b8476e70c9cf7f8005c72d524b8887db76a08f9eac66863ae00530190d1b
font_01_sfnt_off00010064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10064 11536 bytes
SHA-256: e8e23aca836fa68872354a38ad2f865367ac8f8c8978b4577bd9b04e2a77792b
font_02_sfnt_off000127f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127F0 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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