PDF malware analysis — malicious · 16f7b2277a70137a

MALICIOUS

PDF

70.5 KB Created: 2020-11-29 08:49:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: e103b4bc557ca01c0542809ade70567a SHA-1: 9fbf9635434d88dbe7c3456cebde676171c0d342 SHA-256: 16f7b2277a70137a96aef99fa52f997297a248b27a5a9282cab18cf8e5443e48

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic firing for an external URI pointing to a suspicious domain, and the ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains strings that suggest a lure related to 'Sap basis tcode pdf'. The primary IOC is the external URL which is likely used to host a malicious payload or redirect to a phishing site.

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://traffking.ru/aws?utm_term=sap+basis+tcode+pdf PDF link annotation
- https://kapumalozaz.weebly.com/uploads/1/3/4/8/134892255/ac6f5bd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493200/normal_5fb9ee1192200.pdfIn PDF document text
- https://nipefewemaxu.weebly.com/uploads/1/3/4/3/134387654/dizopumuse.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486758/normal_5fb2bc9b3a65d.pdfIn PDF document text
- https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/beparinunij.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/rekawexuretowo/hogfish_demo_font_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/01648349-9032-445f-89c7-62b84e0a8e2c/fortnite_apk_download_android_no_survey.pdfIn PDF document text
- https://s3.amazonaws.com/dutimajizowa/48050576295.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/29dcdddb-1228-4dc7-9d94-961f9441397d/12039002728.pdfIn PDF document text
- https://s3.amazonaws.com/kizuporowefib/basketball_math_worksheets_printable.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_off0000d563.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD563	5264 bytes
SHA-256: `2491acd13b323732af269e6303c3438268b1b2b9cf7029609189eba72f94866b`
`font_01_sfnt_off0000e754.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE754	11180 bytes
SHA-256: `810c83857c1286ee919c787f48cac2da977a1a371984da890e2d6c9eb2a0a407`

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