PDF malware analysis — malicious · 4e461ae6be99ab46

MALICIOUS

PDF

72.3 KB Created: 2021-03-10 05:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3e0b29ed1ece059520eb0c4bd51dc300 SHA-1: 7c6634d060b5d4989dd09c703a23102bed19fd2d SHA-256: 4e461ae6be99ab462c5d632e05cf88abc29fa878b87d5e84ea75aca64b982e91

104 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of a visual download button and an embedded URI pointing to 'zajinet.ru' suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to software downloads, reinforcing the lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://zajinet.ru/strik?utm_term=rockwell+rslogix+5000+software+download
- https://cdn-cms.f-static.net/uploads/4464730/normal_5fd1ee8e52cab.pdf
- http://form-copyrightservices.com/kosoziguluvazajunixe8d1q8.pdf
- http://xejopegig.mypressonline.com/ozeri_precision_digital_bathroom_scale.pdf
- http://astrology-personal.online/the_lion_the_witch_and_the_wardrobe_bbc_trailerxip69.pdf
- http://golomashvanna.xyz/learning_to_drive_a_car_step_by_steptvuz5.pdf
- http://duzixofiwisegi.mygamesonline.org/aquaculture_biosecurity.pdf
- http://prodson.space/citra_emulator_android_best_settingsckm2d.pdf
- http://bred-enligne.com/mejagepidim2jcgn.pdf
- https://static.s123-cdn-static.com/uploads/4446770/normal_5fc5753fc4375.pdf
- http://all-gopro.com/ponixitoxewosibivvt2oa.pdf
- http://xitabijasava.getenjoyment.net/tagivo.pdf
- http://smartcreditus.info/lorejiramasadg5rpk.pdf
- http://tryporte.xyz/porter_cable_router_1001_plunge_base5qhmr.pdf
- http://kemamibuke.mygamesonline.org/talotulox.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/luborinizu/chewbacca_sound_bite.pdf
- https://s3.amazonaws.com/sojebelevenex/defender_chords_g.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_off0000d77d.bin` `0f2b62ea2fcc8ab253a22372f980b3387d2fb1787b03842d0ffbbb9f278cc29a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD77D	5684 bytes
`font_01_sfnt_off0000eb0f.bin` `a8f054c6b5f91c161cdaef3c3ee37a25e4d5c7374cc7ff93fff8c2b5634cc9a8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB0F	11744 bytes

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