Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b8be8f388704412…

MALICIOUS

PDF

80.1 KB Created: 2021-03-09 15:30:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a2ec8385a36aba9ef05a2e5954f29d3 SHA-1: 18241c2b6b5539884250d97172adc48f66fba5b8 SHA-256: 1b8be8f3887044124464b308a42f45af2387af0e2e1065ebc880e8b7f7d55ab9
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL disguised as a download link for 'Agile software development'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting the user is directed to a malicious site to download a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lozipotod.ru/award?keyword=agile+software+development+pdf+download
    • http://xifotole.iblogger.org/97889074834.pdf
    • http://gufutaca3.xyz/download_game_rope_rescue_mod_apkjffds.pdf
    • http://lnstagramcopyrightmanagement.com/novezeboridimufakennsumr.pdf
    • http://triple-doska4.club/23610319913r3a7a.pdf
    • http://sozetil.66ghz.com/ffxiv_leveling_guide_30-_50.pdf
    • http://mabisujolaman.iblogger.org/don_juan_demarco_full_movie_streaming.pdf
    • http://yewes.fun/bawalunijaziwaw1q4nw.pdf
    • http://policyhelpcenter.com/favuzalaliwobotexop78l3.pdf
    • http://toolsbestpricemicrometer.site/corningware_slow_cooker_replacement_knob94cdh.pdf
    • http://wonnaturila.space/graphic_designer_resume_template_2020dkond.pdf
    • http://pankreatitum.ru/solijosokitu42vzv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://boxitevu.rf.gd/swan_lake_piano_music_sheet.pdf
    • https://uploads.strikinglycdn.com/files/62ad792c-86aa-4beb-ad46-eacd7a770cf5/what_words_begin_with_fuc.pdf
    • http://kasabapagikaki.rf.gd/gimp_cant_create_layer_group.pdf
    • https://uploads.strikinglycdn.com/files/94c80792-b405-44b5-a7ab-5a40f18eed11/12617066808.pdf
    • http://pasazaxara.rf.gd/71284661192.pdf
    • http://kuwoguki.epizy.com/63553540889.pdf
    • https://uploads.strikinglycdn.com/files/73fd7c0d-b3e9-4803-858a-5e407e98018d/the_shack_william_p._young_characters.pdf
    • https://uploads.strikinglycdn.com/files/e073e460-56a7-41d6-9d92-3a6f32cd3dba/vapuluref.pdf
    • https://uploads.strikinglycdn.com/files/1f14c74a-0b30-4d68-b844-7ad4f15587e2/furevab.pdf
    • https://uploads.strikinglycdn.com/files/eda15ad7-cabb-47eb-87be-279959ae6b82/child_play_2019_tamil_dubbed_movie_download_isaimini.pdf
    • https://uploads.strikinglycdn.com/files/b3f8662e-d9c7-46b7-b24a-81232fc4e899/cloud_9_meaning_origin.pdf
    • https://uploads.strikinglycdn.com/files/16b98f92-43cd-4a9a-91ad-1b00c0529922/24092553995.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed2e.bin
3b5245318e05f57bfab83e36345b63f041fd6af5a4fd8643da2bceb8248dd58c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED2E 5288 bytes
font_01_sfnt_off0000ff27.bin
6d328e6d2a36e3929b9978875990545d61c5dadd78a836748a50a63a960dd532		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF27 10984 bytes
font_02_sfnt_off000124af.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124AF 4324 bytes

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