PDF malware analysis — malicious · beca8a464f7c4f98

MALICIOUS

PDF

74.3 KB Created: 2021-04-04 06:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bf2d018d6683e07aca377729aac27a83 SHA-1: 2459057e47741c9d13d21170011722217c6a9fa6 SHA-256: beca8a464f7c4f98f58a50158c8bbff31b489ef08442031da80aea278cf38f20

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 a high confidence score. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware delivery. Although no explicit script was extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a malicious resource.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/123?utm_term=pick+image+from+gallery+android
- http://kakafeg.scienceontheweb.net/veterinary_microbiology_and_microbial_diseases.pdf
- http://wiwajekirutiw.scienceontheweb.net/23704918341.pdf
- https://cdn.sqhk.co/tamurikubol/g37jcge/sharpen_image_apple.pdf
- http://taxarigi.sportsontheweb.net/72326173759.pdf
- http://boothattendant.com/wufujipoxideronobivepagotk724l.pdf
- http://securespot.ru/fagadimetawikumabolu372dz.pdf
- http://salleop.xyz/xuzufavax9l.pdf
- https://cdn.sqhk.co/bedogipaxog/mxhbmAK/marktplaats_auto_curacao.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://ladurabazidema.onlinewebshop.net/4873351569.pdf
- http://likewiwojuxus.atwebpages.com/26251386394.pdf
- http://bemijeranokawu.epizy.com/citroen_c5_2008_manual.pdf
- https://5862e4ea-63a6-4c92-af93-e06d02d1a664.filesusr.com/ugd/eaa371_3ae2dead4dc24ce7a97521cb073d2859.pdf?index=true
- https://s3.amazonaws.com/wizakokowe/memurovu.pdf
- https://dc58184e-bbba-402a-8e08-a55d552c8f3f.filesusr.com/ugd/0ebc1f_fd7b3d08a4a045b08c26dde5dbec694b.pdf?index=true
- https://05e27880-d5e1-4d3d-8428-ba943e9300bc.filesusr.com/ugd/b56239_b510ca2c30824f51b876b7b48cdbe232.pdf?index=true
- http://fofapisavinuf.epizy.com/21539445941.pdf
- https://s3.amazonaws.com/devuxuzejozam/lawn_care_service_agreement_template.pdf
- http://fizusosikirizi.epizy.com/managing_emotions_worksheet.pdf
- https://s3.amazonaws.com/padosumifubobo/our_lord_calling_your_name.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_off0000e2bf.bin` `89c988bf0a30239876bf50f532d1e643755d6777be206ce689c13b9d1c62d02a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2BF	5332 bytes
`font_01_sfnt_off0000f4db.bin` `786cd61aad6737a774d0789af55f3c323962c38de6953fb6a64dd6324903ddbd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4DB	11820 bytes

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