PDF malware analysis — malicious · e897e90fa9bc7c87

MALICIOUS

PDF

64.0 KB Created: 2020-12-01 23:39:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 157be9c1c4af69012c5d6a8460e6eb8d SHA-1: d7f4e4fabbc02354fb0dcc8b377e93e2965f2a29 SHA-256: e897e90fa9bc7c8759aadf9ba70341e09f7834a49e83d19b341024c86519c161

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-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://trafffi.ru/123?utm_term=christian+learning+center+huron+sd PDF link annotation
- https://cdn-cms.f-static.net/uploads/4371788/normal_5f8a0750a5173.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370056/normal_5f957ed6bca2b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376599/normal_5f8d4a86a5172.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486552/normal_5fa98e2736aa0.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/wuniku/dupadiwovazemulekematiku.pdfIn PDF document text
- https://s3.amazonaws.com/gexixixuda/free_novels_by_lynne_graham.pdfIn PDF document text
- https://s3.amazonaws.com/lixuduwonifa/foretixeregexowudimap.pdfIn PDF document text
- https://s3.amazonaws.com/gavobawum/87729486507.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/diplomov_prce_upol.pdfIn PDF document text
- https://s3.amazonaws.com/wipotegadodorek/marvel_future_fight_hacked_apk.pdfIn PDF document text
- https://s3.amazonaws.com/fekazudabo/vatexiletujesowawexug.pdfIn PDF document text
- https://s3.amazonaws.com/sitok/larousse_francais_anglais_apk_cracked.pdfIn PDF document text
- https://s3.amazonaws.com/jubiferekaka/57916982814.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_off0000bb48.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBB48	5104 bytes
SHA-256: `59fd82cb42c2ab08e258e221895b0ab63beb1f1be6ce90ebc9d2443900478d4c`
`font_01_sfnt_off0000cc91.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCC91	11196 bytes
SHA-256: `9f17605d46b7307e1edea9127fd5d7eaa2770d780a51ca965457de6ebcc54e54`

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