Malicious PDF — malware analysis report

Static analysis result for SHA-256 dca3cdad2a438a8a…

MALICIOUS

PDF

196.3 KB Created: 2021-03-21 06:49:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 94ff366f9afcbbc4c7c1b8891235c8fb SHA-1: 1d50f92370d5a622fe9314c08b5b7ff5ef42fcd7 SHA-256: dca3cdad2a438a8a3e67c7de27657d0a493e6c511176e2ac98449df45d99160c
96 Risk Score

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 0.9986

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://seumenha.ru/strik?utm_term=list+of+haruki+murakami+books PDF link annotation
    • https://cdn.sqhk.co/virapazetif/fAjgfCI/61695962354.pdfIn PDF document text
    • https://cdn.sqhk.co/vuveleni/szlPgfm/raspberry_pi_b_1._2_pinout.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/32753685507.pdfIn PDF document text
    • http://wifefavowe.iblogger.org/ancient_greek_civilization.pdfIn PDF document text
    • https://cdn.sqhk.co/pesofesidoke/Yy50jjg/sajiwu.pdfIn PDF document text
    • https://cdn.sqhk.co/votijavos/hjsK0ie/wiresumofexizumuzugufawij.pdfIn PDF document text
    • http://tedusoxunola.22web.org/tatedofukapevage.pdfIn PDF document text
    • http://xamawigokoke.mygamesonline.org/83728890090.pdfIn PDF document text
    • http://penafur.scienceontheweb.net/les_castes_en_inde_aujourd_hui.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://80f75f89-a1e3-4611-a0ef-7a704eb82da9.filesusr.com/ugd/0286dd_6b4ddc2cb69f44b990215e5c6b90de1b.pdf?index=trueIn PDF document text
    • http://kojeziponoduv.epizy.com/cosco_infant_car_seat_instructions.pdfIn PDF document text
    • http://gejevebo.epizy.com/danemesa.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/best_calendar_app_android_exchange.pdfIn PDF document text
    • http://raxajuneneg.epizy.com/delivering_bad_news_letter_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/zukaluvobujewanexusutaxil.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/vapiduvoruku.pdfIn PDF document text
    • https://c2267750-1f6d-4c2f-944a-eb302c7f07d7.filesusr.com/ugd/93971e_dfa651b9008a40158346b6dd62911358.pdf?index=trueIn PDF document text
    • https://3175e58c-9db9-4d87-bcb9-15e03531d93d.filesusr.com/ugd/c93210_88ded0aaaed54c35b20506edfe852a38.pdf?index=trueIn PDF document text
    • http://bugexiwur.epizy.com/51623509116.pdfIn PDF document text
    • https://2d130471-2a64-48ba-87cf-8f1e86c6acad.filesusr.com/ugd/9c43ec_449118a3acfd4d698830ebb4a2c43fa4.pdf?index=trueIn PDF document text
    • https://bbf05351-1c49-455c-8ea8-df349977a4d5.filesusr.com/ugd/15c6d6_7e4aa75394f34c589cd36c3f59676b03.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/what_is_the_bolt_pattern_on_a_2000_jeep_grand_cherokee.pdfIn PDF document text
    • http://zekumom.epizy.com/messenger_lite_app_play_store.pdfIn PDF document text
    • http://fawalexigin.epizy.com/g_shock_ga_100_battery_price.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
stream_003_off0001b48f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B48F 90744 bytes
SHA-256: c3b160407bd5124f48038fa44976be7460ab418ad6c285cd52468a5c19178ce2
font_01_sfnt_off0002c5e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5E7 5120 bytes
SHA-256: de1123c5eeb3380846c4813c99f16814f65248c4c26dfc5ffc344864aff9de4b
font_02_sfnt_off0002d730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D730 13620 bytes
SHA-256: 8175d0db07ce2884674f1d8598ebc85b4bcfa4a66c58299d8b21e5d9b5e8e793

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