Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0de1d4dec17504b…

MALICIOUS

PDF

63.1 KB Created: 2020-11-21 05:13:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24860ae6153213543daf8480b57060da SHA-1: 1840a24b664cacb12b4dd0412c9ac0efb70688c3 SHA-256: d0de1d4dec17504b157f8d78ef6863c41cb4c255f1610af4ce1bf06a7db7d566
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which are disguised as a collector's edition guide for Destiny 2. The heuristic PDF_SEO_LINK_FARM indicates a large number of external PDF links, and ClamAV detected it as Pdf.Phishing.Trojan. This suggests the document is designed to redirect users to malicious websites, likely for phishing or to download further malware. No scripts were extracted, but the presence of external links points to a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffe.ru/123?utm_term=destiny+2+prima+collector%2527s+edition+guide+pdf
    • https://cdn-cms.f-static.net/uploads/4495065/normal_5fb38a1888d2c.pdf
    • https://cdn-cms.f-static.net/uploads/4456135/normal_5fa1a67b48ec9.pdf
    • https://cdn-cms.f-static.net/uploads/4446395/normal_5fa960b9ed6a3.pdf
    • https://cdn-cms.f-static.net/uploads/4379221/normal_5fa60a9190bff.pdf
    • https://dotofopig.weebly.com/uploads/1/3/4/3/134307416/nemigiwolipesu_risekamavevo_kagefomad.pdf
    • https://cdn-cms.f-static.net/uploads/4366357/normal_5f879a60e1e07.pdf
    • https://cdn-cms.f-static.net/uploads/4382414/normal_5f8d61fa9d472.pdf
    • https://cdn-cms.f-static.net/uploads/4411919/normal_5f95a3df442fd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/woberiz/shield_codes_for_borderlands_2_gibbed.pdf
    • https://uploads.strikinglycdn.com/files/a4321d99-8010-48ea-9be2-d25bb7f0ceaf/bajagipibebonogik.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b757.bin
7f6a7a29fc7daf806b0df9bd94e71649a81d9f70b2576c2766065bf1a1a044ff
pdf-font-stream PDF embedded font (sfnt) at offset 0xB757 5740 bytes
font_01_sfnt_off0000caed.bin
acac8b13c6f178d4ca5f538db42d423a3db9d089ddf4bd157bec590075498c53
pdf-font-stream PDF embedded font (sfnt) at offset 0xCAED 10800 bytes