PDF malware analysis — malicious · da38a396158fa332

MALICIOUS

PDF

81.3 KB Created: 2021-02-23 03:37:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7b6edbe8eecde6baee5b91fdc63f45e0 SHA-1: 33bbe0575b0f6004c3434821016ef88ef3ef3192 SHA-256: da38a396158fa3324f71d55fac97ccc189c28111cdf313c0b08262c8ba5f032e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were extracted, the presence of external URLs suggests the document is designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://crophysi.ru/aws?utm_term=supreme+court+cases+apush+period+4
- https://cdn.sqhk.co/wadusazilox/1jhdAid/baixar_app_vr_e_voce.pdf
- https://cdn.sqhk.co/fetebutujo/Hjaq2ha/head_ball_2_hack_generator.pdf
- http://jebumivusesujan.iblogger.org/how_to_make_user_guide_template.pdf
- https://cdn.sqhk.co/sesumaku/enJaejb/69809863790.pdf
- https://cdn.sqhk.co/miloxuso/SibhjfC/disneyland_park_california_map.pdf
- https://rikafikisejale.weebly.com/uploads/1/3/0/7/130740062/4064726.pdf
- https://narikimixak.weebly.com/uploads/1/3/5/9/135961736/8073995.pdf
- http://sigipotewal.22web.org/1286699932.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/mejobu/elca_transformer_datasheet.pdf
- http://xumizaxojumiko.epizy.com/tatulugarasebositi.pdf
- https://s3.amazonaws.com/sudevejerifu/advanced_diploma_in_information_technology_syllabus.pdf
- https://s3.amazonaws.com/desenaz/tomelekanojegejor.pdf
- http://wovovaj.rf.gd/fitokatodajeturewekejobij.pdf
- http://bixikaw.epizy.com/72233972814.pdf
- http://gofudawaropuz.epizy.com/64981254514.pdf
- https://s3.amazonaws.com/dujepav/berichtsheft_vorlage_tglich.pdf
- http://rukinemofe.rf.gd/79095051103.pdf
- https://s3.amazonaws.com/palevijuj/other_words_meaning_guide.pdf
- https://s3.amazonaws.com/kovibu/chaperone_quest_guide.pdf
- http://likabagumaza.rf.gd/69572988605.pdf
- http://gebejofokim.rf.gd/blackmagic_atem_4k_manual.pdf
- https://s3.amazonaws.com/viromibukoleliw/dunno_mac_miller_sheet_music.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00010247.bin` `2f0bcfaffc2cabb95935c550976db7d0faf4881e1e627e45427fca1b66d487ff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10247	5472 bytes
`font_01_sfnt_off000114b8.bin` `4db1f528dd57f4fd5d2393a0cde5fd5f84e2e26bbb10e9e94d53da1d269b8181`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x114B8	10248 bytes

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