Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2af7af7f06caab…

MALICIOUS

PDF

83.1 KB Created: 2021-03-14 03:31:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: c81054cd24b031281d3d3ad179fb354d SHA-1: 3f4a7f6595e4aab29b489d53c4f3a2dce5088352 SHA-256: 0a2af7af7f06caab2123284f4df986c280e53ac7b155f1f282a2fa9b28caa9d5
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a domain associated with phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit PDF viewers or trick users into visiting the malicious URL.

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://botokaw.ru/wix?keyword=minecraft+trade+servers+tf2 PDF link annotation
    • https://cdn.sqhk.co/fuguwaso/lD3vpjh/raben.pdfIn PDF document text
    • https://cdn.sqhk.co/votojuxosaf/gFiageB/haha_text_message_ringtone_download.pdfIn PDF document text
    • http://silujokiz.mypressonline.com/homoeopathic_temperament.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/wih9kic/pockets_billiards_and_brew_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/zaxuloxedu/lpsW2Lh/91976608940.pdfIn PDF document text
    • http://xagugudel.sportsontheweb.net/logitech_z623_2.1_channel_thx.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/jbihhad/jupajexeme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • https://s3.amazonaws.com/jebokizez/how_to_check_my_covid_19_test_result_in_abu_dhabi.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/tosuxo.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/rujubevelelu.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/determination_of_soil_ph_lab_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3603144e-3d7a-4112-87d1-15214c18d165/windows_7_ultimate_32_bit_torrent_download_kickass.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/008bb21c-2bd5-422f-a16e-89f71c6bbaa8/lista_tascon_excel.pdfIn PDF document text
    • http://pimobepetokonud.myartsonline.com/how_to_reset_insinkerator_hot_water_dispenser.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/human_anatomy__physiology_laboratory_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/acurite_outdoor_thermometer_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/marizalal.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/17824945733.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/63300250811.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://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d37c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37C 2976 bytes
SHA-256: 6887d0bd04090c38d9084fabb5d442c645de89d7d69425d7332b6ba14270deb4
font_01_sfnt_off0000de2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE2D 5180 bytes
SHA-256: 9f4b2cbf1dcd2e6bea2457ee06c77da2cca827afe6c265ea65236ca4dbac2b91
font_02_sfnt_off0000eff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF6 8904 bytes
SHA-256: 90f5ced83addfbc5c39873d5da9b876fc788cbae8de3ea08fc1499e3c9e92ce6
font_03_sfnt_off000101a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A5 10872 bytes
SHA-256: b8cf4fe03f4eef0439f9da7a6c2e84dfe0303a77a9abe83bc35425ab2bb4091e
font_04_sfnt_off0001273a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1273A 16360 bytes
SHA-256: 4fb1e3630348dcbba8b0b2b84db08c968c79051e225671b55b9354c3713727e8

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