Malicious PDF — malware analysis report

Static analysis result for SHA-256 8786292fb7c460d1…

MALICIOUS

PDF

74.9 KB Created: 2021-03-15 00:42:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cc2df371a0dfb7bd215e2d04ba8618e SHA-1: be0a6a4d1de07251483546d2cc36de709adf8da4 SHA-256: 8786292fb7c460d1a3aa49d3b99cf15bd9462959d754a98831d4d2d980ce4197
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 multiple heuristics indicating the presence of external URIs and embedded URLs. The document body, though partially corrupted, suggests a lure related to 'Parasitic infections treatment pdf'. The embedded URLs likely serve as phishing links or download locations for further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/award?keyword=parasitic+infections+treatment+pdf
    • http://kovuzaxaf.medianewsonline.com/how_to_create_google_adsense_account.pdf
    • https://cdn-cms.f-static.net/uploads/4415768/normal_5fdc507029092.pdf
    • http://rowomonug.mywebcommunity.org/timex_indiglo_watch_straps_india.pdf
    • http://hrushch.space/connected_no_internet_fix_androidminkl.pdf
    • http://acgmgroup.ru/vocaloid_5_free_crackr97tn.pdf
    • http://fojefojegut.medianewsonline.com/radicales_libres_unam.pdf
    • https://wojanoxunoliwam.weebly.com/uploads/1/3/5/3/135394081/340c3f4518e.pdf
    • http://fomijegi.mypressonline.com/apache_tomcat_7_tutorial.pdf
    • http://palitra-cveta.ru/64749946629er7qw.pdf
    • https://potepivogatofef.weebly.com/uploads/1/3/2/7/132740463/niwotas-maxoxezobew-powoxu.pdf
    • https://suwuvonujijipi.weebly.com/uploads/1/3/4/0/134042364/ridodafuwofobuwof.pdf
    • https://ludiwutigavas.weebly.com/uploads/1/3/4/6/134697468/6683131.pdf
    • https://static.s123-cdn-static.com/uploads/4501656/normal_5fcc8cccdcde4.pdf
    • http://idealicaitaly.site/lg_top_loader_washing_machine_instruction_manualjzvu2.pdf
    • http://paktum.pro/how_can_lions_adapt_to_the_environmentgpovi.pdf
    • https://xuxozuxar.weebly.com/uploads/1/3/5/3/135326767/vobitepabatanuxu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tosevud/28127022571.pdf
    • https://s3.amazonaws.com/rolefosiju/vuwomuxobabugurigo.pdf
    • https://s3.amazonaws.com/jugobimuraje/un_agenda_21.pdf
    • https://s3.amazonaws.com/lokijuronig/winpe_bootable_iso.pdf
    • https://s3.amazonaws.com/lorifawuvawot/packers_vs_bears_prediction_bleacher_report.pdf
    • http://lojabupabavize.onlinewebshop.net/51634014492.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e964.bin
bd4416f3703e71d328cbac6f7e9b794e940d87c45437a427b4ae7bf1498127d1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE964 5272 bytes
font_01_sfnt_off0000fb3b.bin
da2b2db6ea70baf7603fdbf4a7be8e5f622572e82b70a327194ebb47fa02b3bb
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB3B 10220 bytes