PDF malware analysis — malicious · c125242609155de6

MALICIOUS

PDF

65.4 KB Created: 2020-12-01 20:44:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 4ee5ce2eaf8d29327257c4fce44e8037 SHA-1: d2a81b88992f68aec269ea8e9d57d56d8c1ef68a SHA-256: c125242609155de6e4621189e5f31de6fa642a75c68c7b80f1d365cf346d0cc5

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 0.9979

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://traffset.ru/strik?utm_term=human+bones+worksheet+answer+key PDF link annotation
- https://cdn-cms.f-static.net/uploads/4501231/normal_5fb617ac7b493.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/dusined/bluestacks_pubg_apk_ykleme.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0c66b27a199023ab4af32/t/5fc137fbe6d49a06bbbe4317/1606498299887/20117196467.pdfIn PDF document text
- https://s3.amazonaws.com/takeju/25118868889.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/21a02536-0678-4601-b8fd-a10708d3aa30/k7_antivirus_installation_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1331ded5-bfa9-4b96-a550-5365fac388cd/jetujokuwamizojozokoda.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc2fc780b6b03258f43150d/t/5fc5222ce6d49a06bb370578/1606754860937/dungeons_and_dragons_monster_manual_5.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe512e6e-c3e8-462f-8b98-48074711fe8d/mini_dozer_for_sale_uk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c3a2b014-3815-417b-8b35-9e64adfbc23b/how_to_compile_a_c_program_in_linux_using_gcc.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_off0000c6b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC6B6	5252 bytes
SHA-256: `2f7e99758cf2575102a467876db3d34e7f37e3dfcf986af78a96df52c541906e`
`font_01_sfnt_off0000d872.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD872	9740 bytes
SHA-256: `70918073251166ea92797533c20c63681476ba281d0c7b653a75301cc60afa97`

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