PDF malware analysis — malicious · ac377a47e0980fe6

MALICIOUS

PDF

69.3 KB Created: 2021-04-02 23:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a01df44907616c2c23968015943fb1fa SHA-1: bd3cf8c9b85c3a54be188af018417bd295c430d9 SHA-256: ac377a47e0980fe6e2746234d09ae56a72aa6ce6fb0eb329d0c127dcf8049b00

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that, when clicked, likely leads to the download of a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of multiple suspicious URLs further supports this assessment, suggesting a phishing campaign aiming to distribute malware.

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://bologen.ru/wix?keyword=introduction+to+geometric+sequences+worksheet
- https://cdn.sqhk.co/legesizas/aphuqIb/tovukazokosalupapixikevan.pdf
- https://cdn.sqhk.co/noxivudeva/hih2vjh/what_does_amazon_kindle_unlimited_cost.pdf
- http://kefoweloruzopos.22web.org/99792290229.pdf
- http://lonupupob.iblogger.org/wojovovabalenasaravozirop.pdf
- http://jejufanafozotet.22web.org/autocad_2007_app_for_pc.pdf
- http://bikefevogob.iblogger.org/senilosopojatusililemuva.pdf
- https://cdn.sqhk.co/sawomunuj/uTlibDk/amaze_meaning_urban_dictionary.pdf
- https://cdn.sqhk.co/dunuxorigu/fG3hizy/98280828617.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/936910e0-e63b-46c3-82db-a64d569caa7b/lutumu.pdf
- https://uploads.strikinglycdn.com/files/94625b0b-cab4-4e77-84c3-b7d7ae2895aa/how_to_sync_usb_receiver_and_wireless_mouse_logitech.pdf
- https://uploads.strikinglycdn.com/files/9d3c8c9c-cd73-4ffc-878d-b1f81ac00267/16582445873.pdf
- http://mapureju.epizy.com/chitkara_school_pad.pdf
- https://uploads.strikinglycdn.com/files/725b5daa-5eb4-4772-a8df-dfe10daed52d/degakedofe.pdf
- http://jewomegoka.epizy.com/75486325414.pdf
- https://uploads.strikinglycdn.com/files/2a259e05-0336-4133-bf8a-f896f452bf29/zavamizilavijon.pdf
- https://uploads.strikinglycdn.com/files/f27592ef-b93b-4a95-a16c-8b995762ebdd/lenovo_t510_ram_max.pdf
- https://uploads.strikinglycdn.com/files/64389583-bd5e-4bb6-9b65-5580bdf5e6dc/megam.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_off0000d19d.bin` `588c3ae0f9cafddb70a9220d53ef873f29c895d19d183a83fb2715925b321bd4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD19D	5332 bytes
`font_01_sfnt_off0000e39f.bin` `45bf02fe0f9e03bba94a800097f08138a253f6d746196e90b525055651effa12`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE39F	10580 bytes

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