PDF malware analysis — malicious · 99b557c7a97ddbcd

MALICIOUS

PDF

65.8 KB Created: 2020-11-19 23:36:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 5757e6fcb41bcbaba0299ea591ae28dd SHA-1: 9317f213d9dc8c4eadde1e4f83930031d1d1964c SHA-256: 99b557c7a97ddbcd92cf04489be584474e3450a69e311db873a2054731607453

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafftec.ru/aws?utm_term=format+sd+card+windows+10+for+android PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/cc7a4872-d2d7-4a1e-9ecb-be578b932609/32901209707.pdfIn PDF document text
- https://s3.amazonaws.com/zowejunef/33805893830.pdfIn PDF document text
- https://s3.amazonaws.com/moduxanakuri/32987569433.pdfIn PDF document text
- https://s3.amazonaws.com/tometubufimopim/ge_profile_double_oven_manual_self_clean.pdfIn PDF document text
- https://s3.amazonaws.com/tapelu/android_app_auto_screen_rotation.pdfIn PDF document text
- https://s3.amazonaws.com/dowadotiju/72953266050.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e336c945-e5e7-4c2a-89df-95fe17b3f4f1/pathfinder_kingmaker_best_monk_feats.pdfIn PDF document text
- https://s3.amazonaws.com/kopisigapub/93414964250.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5c0dd7f8-0f20-45c4-946e-843877ad1210/latukoxetalad.pdfIn PDF document text
- https://s3.amazonaws.com/megelugik/cengage_physical_chemistry_for_iit_jee.pdfIn PDF document text
- https://s3.amazonaws.com/jarawaxanivu/68196099531.pdfIn PDF document text
- https://s3.amazonaws.com/luresimosip/zotenefawes.pdfIn PDF document text
- https://s3.amazonaws.com/bewibiwat/tekab.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c4f0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC4F0	5376 bytes
SHA-256: `0b1f5bfb3159bd24c751dd2909dc131c78cecd475ba664169c5635990946ac02`
`font_01_sfnt_off0000d737.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD737	10412 bytes
SHA-256: `82e3a262f69523390a689c384311d99883ea5efc4e34d2f4f3e9f00465fa9e15`

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