PDF malware analysis — malicious · 615d32d2bf620e56

MALICIOUS

PDF

80.3 KB Created: 2021-03-29 12:50:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e308c93db85813ca087297dac113c14c SHA-1: 0276afb48229bb8d3ea0d79396d96180ab20ffd3 SHA-256: 615d32d2bf620e5669e6dc519d5c0d9dbd4c6a2160e8bba4e4bb7f721e27c15d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL pointing to a malicious domain, identified by ClamAV and ML classifiers as malicious. The document body, though heavily obfuscated, suggests a lure related to 'analytical method development'. The presence of external URIs and the high risk score indicate a phishing attempt designed to redirect users to a compromised site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/award?keyword=analytical+method+development+pdf
- http://zedakobogesa.mypressonline.com/43974772170.pdf
- http://dusamoka.mywebcommunity.org/les_livres_apocryphes.pdf
- http://tk-time.site/wanasobusetujowomfy.pdf
- http://idealslimitaly.site/how_can_i_recover_my_facebook_password_without_email_and_phone_number_2018cydgz.pdf
- http://albl.ru/how_to_use_rival_4_qt_ice_cream_makeritt5p.pdf
- https://cdn-cms.f-static.net/uploads/4403264/normal_600fd60419538.pdf
- http://jenuxijaf.mygamesonline.org/xabefefoborolukurulosu.pdf
- http://gaxesujite.medianewsonline.com/pusejuzivix.pdf
- http://jozipuvuwuzaj.mywebcommunity.org/electronics_symbols_and_functions.pdf
- http://stavki-na-sport.site/94320209933bc7x1.pdf
- https://cdn-cms.f-static.net/uploads/4427799/normal_605229836d839.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/kulinisokakewi/mission_mangal_song_songspk.pdf
- https://s3.amazonaws.com/tokatefozude/koporiwepufoxojosamut.pdf
- https://s3.amazonaws.com/mujevubutukoxu/70485541523.pdf
- http://kipejefanowisu.atwebpages.com/koluduku.pdf
- https://s3.amazonaws.com/lulelepese/54632539546.pdf
- http://vokesakogo.onlinewebshop.net/36535323976.pdf
- https://s3.amazonaws.com/nefunupu/thyroid_hormone_formation_steps.pdf
- https://s3.amazonaws.com/senodiw/celtic_harp_sheet_music_free.pdf
- https://s3.amazonaws.com/remeranexe/14408619841.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_off0000f9e4.bin` `ac94b26605fa3e3f19ad781f5530c31c88b95ae4031ecda2107f5db0540b6d76`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF9E4	5272 bytes
`font_01_sfnt_off00010bc2.bin` `d94a5cb3eab10b1be117401aef6f46a687cf62af32b45da71510654d8b989c9a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10BC2	11412 bytes

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