Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a6e35c401a11e1b…

MALICIOUS

PDF

162.0 KB Created: 2021-05-18 01:47:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1d2766cea2fbd283f2eae667c4bccf7 SHA-1: b2be06455844c8df0350807142fee8164d4ae58e SHA-256: 3a6e35c401a11e1b1e80fffc936d4f54be9a239642a6b0e6ce76623a11a0edd9
104 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier and ClamAV as malicious, indicating it likely contains a malicious payload. The document body contains a lure related to downloading Snapchat, and an embedded URI points to a URL that appears to be part of a phishing or malware distribution scheme. The presence of embedded URLs and the ML detection suggest an attempt to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/strik?utm_term=snapchat+ios+9.3+5+apk+download+youtube
    • http://sakabeg.iblogger.org/rafatimasilonepeziko.pdf
    • https://potezevaledu.weebly.com/uploads/1/3/1/4/131406960/dadorujeg_bulaberibozifu_gonabuti.pdf
    • https://fejaxipanegis.weebly.com/uploads/1/3/2/7/132712099/zepevusamit_salogokax_tubigi_zolufi.pdf
    • http://nalatakojuzali.iblogger.org/tableau_calculated_field_functions.pdf
    • https://gedotelebuguda.weebly.com/uploads/1/3/6/0/136050260/3706245.pdf
    • http://fokefetebebinin.66ghz.com/census_2020.pdf
    • https://jedifugidu.weebly.com/uploads/1/3/1/3/131382595/zatinetirowupuveja.pdf
    • http://dudoguxu.22web.org/vufugorapanuwidedep.pdf
    • http://tapuxuwurumar.22web.org/jimalugobewavavowu.pdf
    • https://databuzub.weebly.com/uploads/1/3/4/3/134373368/9876468.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sobenikirija.rf.gd/conclusion_for_hotel_internship_report.pdf
    • https://s3.amazonaws.com/rovuweraja/motorola_moto_e_2nd_generation_frp_bypass.pdf
    • http://mibesajaku.epizy.com/netflix_for_sinotec_smart_tv.pdf
    • http://lizolubemerawi.epizy.com/schwinn_biodyne_220_manual.pdf
    • https://uploads.strikinglycdn.com/files/6e7e8613-31ae-4bb3-8430-16778ce32243/apc_by_schneider_electric_back-ups_es_700_manual.pdf
    • http://xuperaletofigaz.epizy.com/the_round_house_louise_erdrich_summary.pdf
    • http://numuvegar.rf.gd/95236348751.pdf
    • https://uploads.strikinglycdn.com/files/0635ce04-2b6b-4d50-947f-2640d6fa6a30/41892627947.pdf
    • https://uploads.strikinglycdn.com/files/2f013e11-4f5f-4095-ac39-377018bbda59/the_picture_of_dorian_gray_original_book_cover.pdf
    • https://s3.amazonaws.com/libosokune/reported_speech_sentence_transformation_fce.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001eff4.bin
e4bb9c9d52f57400be7c6fe2778aa8b2108c758dda13f6a268896e2fb847d23a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1EFF4 6976 bytes
font_01_sfnt_off000201b6.bin
c44ee4231118192beffb6b009d9b7c9e8c157594efff439d20d8437b9de1e5a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x201B6 5924 bytes
font_02_sfnt_off000215c7.bin
40f938d9d606acc1bcc80c6e07ce004f15f2b384c44a7ccf1c88e059eee59839		 pdf-font-stream PDF embedded font (sfnt) at offset 0x215C7 6104 bytes
font_03_sfnt_off00022922.bin
d4debed81a62a3aae5e65e6d6c0d7abca243157e5f9102534510631f43ccf0d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22922 12840 bytes
font_04_sfnt_off000253e7.bin
57fdcaafc6216ad57ef30050cd12a43e687595277955f6a30b6e9361691a0559		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253E7 16792 bytes
font_05_sfnt_off00026abf.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26ABF 4324 bytes

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