PDF malware analysis — malicious · 43e1cb3fd9784d88

MALICIOUS

PDF

79.8 KB Created: 2021-03-19 03:24:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5ced4184ccdcf1eeecbca83eabb19898 SHA-1: db14ea5aaf341c890b1ff74d1f96c643e313ce44 SHA-256: 43e1cb3fd9784d88e357e96b8d75202c5f26a09d62488ab7233b4a6ad55f484e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with one specifically flagged as an external URI pointing to 'ponafet.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata that could be used to disguise the true nature of the file.

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://ponafet.ru/aws?utm_term=go+ask+alice+movie+music
- http://7gusevshop.website/age_of_sigmar_realms_of_battle_rulesh3f25.pdf
- http://rexevivejegox.scienceontheweb.net/xoborokovurabuwunaneke.pdf
- http://lestyprin.online/what_is_urban_life_definitionr9nl8.pdf
- https://cdn.sqhk.co/lerapuraroke/rdhbJRf/guide_foil_turning_3d.pdf
- http://youla-24.cc/gupapixeketargw2g9.pdf
- http://brumbum2.xyz/norse_tree_of_life_tattoo_ideasdtpkq.pdf
- http://texoraw.sportsontheweb.net/43743775039.pdf
- https://wirosumarot.weebly.com/uploads/1/3/1/3/131398493/kefowufibur-niponetisefezow-topap-wajuvular.pdf
- https://luvabuzizav.weebly.com/uploads/1/3/5/2/135294148/7674819.pdf
- http://daliadiago.com/pawovawiretilogupemeworopkx3i3.pdf
- https://cdn.sqhk.co/gadujotev/ggiddih/jejotobowasejozixuvome.pdf
- https://gegovowazuravas.weebly.com/uploads/1/3/1/3/131398401/dc838d7ced.pdf
- http://libutulidux.medianewsonline.com/how_heat_mode_works_in_samsung_ac.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/faxaxos/12967947339.pdf
- http://satawakerexe.atwebpages.com/75314232387.pdf
- https://s3.amazonaws.com/xapidajovaji/zulufo.pdf
- https://s3.amazonaws.com/luxelula/xekulotejuvufukenataf.pdf
- https://s3.amazonaws.com/xomepixo/sexukinibogojutafow.pdf
- http://jawuwibunoropo.atwebpages.com/xukofudasijazof.pdf
- https://s3.amazonaws.com/wisuw/baul_song_2018_video.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_off0000fa1d.bin` `f1ef5a954d9cc7f695cc0de10aad272e2e268f3afcf80505b337f072265245f4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA1D	5004 bytes
`font_01_sfnt_off00010b21.bin` `b26a14ccfad894b4f173def04a869763ed6704e9f26400ac9a1b9bd327726453`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10B21	11668 bytes

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