PDF malware analysis — malicious · 2fbbb6a2e9dda5d4

MALICIOUS

PDF

69.5 KB Created: 2020-12-07 00:53:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: bcf3847847b853e8101bb1a938b1c85e SHA-1: d97406b1ae8f1d1118c4c4ef194ebc207d41ec6a SHA-256: 2fbbb6a2e9dda5d43f53ef5836b17acc8df7c55c32660e6786f42c113437f7d6

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 0.9995

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://trafffi.ru/123?utm_term=blank+year+calendar+2020+printable PDF link annotation
- https://tatunonomufobuf.weebly.com/uploads/1/3/4/3/134355176/3bbf44cbf44040.pdfIn PDF document text
- https://saronikevuvu.weebly.com/uploads/1/3/4/4/134460573/dorur.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468836/normal_5fbfa6e539e54.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367940/normal_5f89a3e635940.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388596/normal_5f9dd61705273.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/6b234959-15c1-4e3b-8279-46159495c8f1/regovuzerawafejoliza.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/10a05484-62d2-48ed-888c-8e2a624b0ade/47038308277.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c73bc7b5-4d0a-4f27-8fb3-b32abf416048/mongolian_horse_bow_for_sale.pdfIn PDF document text
- https://s3.amazonaws.com/fatikonavori/82815270374.pdfIn PDF document text
- https://s3.amazonaws.com/fefurorobumi/smash_bros_melee_beginner_guide.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c473.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC473	5196 bytes
SHA-256: `38b6e5460f8210727a6605ad2733f305ffee9e78fff79f982d74b82ccd37b435`
`font_01_sfnt_off0000d622.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD622	10784 bytes
SHA-256: `eb45c7f3a8054cb1e53d970d642e27b67076f9a54c7688fb121f0d65d376649e`
`font_02_sfnt_off0000fb25.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB25	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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