PDF malware analysis — malicious · 989a4173e7f0631b

MALICIOUS

PDF

77.4 KB Created: 2020-11-18 14:12:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 23b48bc6e868d7fcfd73d422ab621f29 SHA-1: 107a2557e637744debea54cc9e1cb4c991402682 SHA-256: 989a4173e7f0631bedce0c6fa33ae55e265c6e088360d6a75dc5a3d02b240f5f

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://traffnew.ru/aws?utm_term=c+format+unsigned+int PDF link annotation
- https://cdn-cms.f-static.net/uploads/4375353/normal_5f8982ab14890.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470968/normal_5fadd26f9c6a8.pdfIn PDF document text
- https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/4785052.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/238ab3b0-0a48-45c2-b06e-69267540b655/dark_souls_3_silver_serpent_ring.pdfIn PDF document text
- https://s3.amazonaws.com/domegagowevag/42381978788.pdfIn PDF document text
- https://s3.amazonaws.com/takeju/naduxasabovikiwepuxis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cc443e18-3e4c-4330-94bd-8ced08647535/83127579554.pdfIn PDF document text
- https://s3.amazonaws.com/juxatop/48240008972.pdfIn PDF document text
- https://s3.amazonaws.com/baritexovopa/cryogenic_engine_ppt.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ba72aae6-dee4-4135-9ad1-1869d0d25e9b/wevitu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/302ec0e5-1446-4d35-b647-78123c25e815/37228490644.pdfIn PDF document text
- https://s3.amazonaws.com/fasomusogapovi/gijazimolo.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_off0000ec5e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC5E	5100 bytes
SHA-256: `915b94c86721f8a744c9120c886c55d9662305887109a8d261df78c23013fb1b`
`font_01_sfnt_off0000fd96.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD96	12288 bytes
SHA-256: `86264f3231792ca6a97575a913445831a3063aa2756f02b88e9d218e3da1a14f`

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