Malicious PDF — malware analysis report

Static analysis result for SHA-256 27ab573279304b2c…

MALICIOUS

PDF

83.1 KB Created: 2021-03-25 14:22:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: c8a742616c49fba1874ade51a9e90da0 SHA-1: 6dcee8ba1faeb088bda07b639e3479950b754d42 SHA-256: 27ab573279304b2cf5ae0c60b7e73d96470b7feead5fa2305d770807b9494363
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, with a specific detection name indicating it's a PDF phishing trojan. The embedded URL points to a domain that appears to be a lure, disguised as a search result for hacking-related content. No scripts were extracted, but the PDF structure and heuristics suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://seumenha.ru/wix?keyword=how+to+hack+cooking+fever+casino PDF link annotation
    • http://wodebawoxisire.22web.org/cuisinart_ss-700_single_serve_brewing_system_silver.pdfIn PDF document text
    • https://cdn.sqhk.co/takejirasomu/fjceNih/ielts_full_listening_test_2018_with_answers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374978/normal_5fe21e1cbe987.pdfIn PDF document text
    • https://zalinojawovuga.weebly.com/uploads/1/3/4/8/134886974/zabubibiwo_filuzerare_xubuwaxi.pdfIn PDF document text
    • http://jigitozunawada.66ghz.com/14746274004.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471683/normal_5fe90a9c60512.pdfIn PDF document text
    • https://deparabijafepoj.weebly.com/uploads/1/3/4/0/134040416/9893898.pdfIn PDF document text
    • http://bitawulam.iblogger.org/zakefiju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478687/normal_604e8b22c3b68.pdfIn PDF document text
    • http://zavudonalu.66ghz.com/wawarekakezeko.pdfIn PDF document text
    • https://cdn.sqhk.co/bikuwizatag/ge25Zhi/stickman_fight_battle_shadow_warriors.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459937/normal_5ff2823b7d010.pdfIn PDF document text
    • https://lukafove.weebly.com/uploads/1/3/4/6/134655473/5436947.pdfIn PDF document text
    • https://tarokomilidifuz.weebly.com/uploads/1/3/1/6/131636676/laxugugitebin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413702/normal_6023e70560672.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wanalovum/android_phones_with_nfc_capabilities.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/intermatic_ej351c_timer.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/ditelepos.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/lagu_beautiful_in_white_cover_violin.pdfIn PDF document text
    • http://fosofeba.rf.gd/sixatokosukimomekazugi.pdfIn PDF document text
    • http://vijijowop.epizy.com/star_plus_serial_bahane.pdfIn PDF document text
    • http://fujifumava.epizy.com/aladdin_disney_story.pdfIn PDF document text
    • http://miruwofewap.rf.gd/42974722346.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF008 5288 bytes
SHA-256: 137d248b387f6b8a8966d3b744902ee6f23cef1d42ed3ae48b6650a5c91f9b65
font_01_sfnt_off00010222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10222 11768 bytes
SHA-256: f33b7a21564aecf515784b5ccfbea0ead702afd6859f7716de65ae137496e01b
font_02_sfnt_off000129e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129E5 16344 bytes
SHA-256: 51f6056c5dbfb2dd95d17d635e30e56c284352516084623530fca5da14e94d8a

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