Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee119f4d7f3be55…

MALICIOUS

PDF

88.4 KB Created: 2021-03-21 05:08:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 7e02ca39e32d29bd04e0ee37769a6758 SHA-1: 2e0e1e5abc5be6dc513327972c28ebbc8be24de5 SHA-256: 8ee119f4d7f3be55ff4ae3b808d691535b3d0ec216b2d51d0dfeb83a4bb35e20
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, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that promises a free dictionary download, a common lure for phishing attacks. While no scripts were explicitly extracted, the presence of embedded URIs and the nature of the detection suggest it likely attempts to download and execute a secondary payload.

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://seumenha.ru/award?keyword=medical+dictionary+english+to+bengali+free+download+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480899/normal_601b435abec62.pdfIn PDF document text
    • https://cdn.sqhk.co/notizejamebo/gcIgjD1/zomojaxerogumumupifada.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369655/normal_6012253dd4764.pdfIn PDF document text
    • https://cdn.sqhk.co/wajuletixex/hahd3JP/86561095418.pdfIn PDF document text
    • https://cdn.sqhk.co/jaselavujuwi/hdpFlpg/sodilizotelaburadodemawen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421039/normal_6054919d2968f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413112/normal_6034cd2b71c63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416939/normal_60421b605ddf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478685/normal_60541da5d9d3f.pdfIn PDF document text
    • https://cdn.sqhk.co/rasadenibe/ehh1ghS/mumijalolibujugafi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452171/normal_5fdc3f8502013.pdfIn PDF document text
    • http://paxebuli.iblogger.org/lowebaniba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370996/normal_600c8bf104bc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463538/normal_602026312703e.pdfIn PDF document text
    • https://cdn.sqhk.co/jigekuragige/P1wqqjh/dwight_howard_wife_tea_cooper.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473044/normal_5fcc6cd26c5d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368242/normal_601bb2fe00ffe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2305b40b-acec-4a8a-8ed1-e287dbb99f98/lifunezixi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53424284-eec7-40c2-b8c3-9611bf986b90/64139248402.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b30739b2-7c8f-493f-bf28-e37a3e13eb02/kerbal_space_program_control_rocket.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/484c2339-9668-4f7b-9f92-5728216e8e54/fozoki.pdfIn PDF document text
    • http://joxisuzu.rf.gd/brahma_vaivarta_purana_in_bengali.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.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B0 5756 bytes
SHA-256: 970593d630356d146056247fd7e7b358ca77d09f39b35b61b3a6145c177e6926
font_01_sfnt_off00010d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5E 10332 bytes
SHA-256: 51a1c087f703e08de4a3bc20b401aed175a693661250e35ae5e404a6295aa893
font_02_sfnt_off00012e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E35 10776 bytes
SHA-256: 6c2a1d864ecb7da943c5007ea1ebbe8d8a1a1a825f80843391b91e1da3531643

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