Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0d487f9d2e06ded…

MALICIOUS

PDF

93.8 KB Created: 2021-03-16 07:05:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a1671aca135b4d5c80a4c96da1434eb SHA-1: b1fc4c7835cd6c82e1eda291b8e1d8334a176867 SHA-256: f0d487f9d2e06dedca25f1b69a51cfcb9a0656371c3f55c1e570c1b050fd5f7b
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified by both heuristics and a machine learning classifier as malicious. The ClamAV detection further confirms its malicious nature. The document body, though heavily obfuscated, contains text that appears to be a lure related to religious content, suggesting a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/123?utm_term=mata+lakshmi+ji+aarti
    • https://cdn-cms.f-static.net/uploads/4448746/normal_6031c1049859d.pdf
    • http://zuxemesemubozo.mywebcommunity.org/amharic_books_free_download.pdf
    • http://tapasin.sportsontheweb.net/3_month_old_baby_development_in_hindi.pdf
    • https://static.s123-cdn-static.com/uploads/4466666/normal_5fe1359089771.pdf
    • https://cdn-cms.f-static.net/uploads/4369508/normal_5fe9e7200ebbd.pdf
    • http://fedorahosted.org/lohit
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nejesezape.myartsonline.com/26504654450.pdf
    • https://1bf92926-22d0-44a1-94fb-b51843c41cd5.filesusr.com/ugd/762c1a_ccecb16589e241368dd932abfe8bded7.pdf?index=true
    • https://s3.amazonaws.com/zomuzigo/children_s_chef_hat_template.pdf
    • https://01d7ec8a-e38e-4e33-8c76-1be31754498b.filesusr.com/ugd/24d943_4d40f5249a364ac5b24eaaa239eacc67.pdf?index=true
    • https://15e12281-0fef-4bb1-b284-2b61ddec1698.filesusr.com/ugd/6c5390_85b6758cc8e943b0bc42e41f7af8c6b2.pdf?index=true
    • https://562c2315-396f-49d1-9e45-1236e049cb13.filesusr.com/ugd/ec0012_c9c237eb61e24392a54595273f96b403.pdf?index=true
    • https://cceb078e-1df6-42b0-9e12-359f30e42f1d.filesusr.com/ugd/e8506d_a2b41966368746b2ad150dabaf08e41a.pdf?index=true
    • https://s3.amazonaws.com/bajapovogam/men_s_fashion_guide_uk.pdf
    • http://jujobope.atwebpages.com/97053925889.pdf
    • https://29ce6865-365c-47c4-9f0a-635d6f965865.filesusr.com/ugd/0d6b77_8d6fed4627504b61aa93252acc081b57.pdf?index=true
    • https://0b7b936c-93ac-4a60-9644-6ba220b934cc.filesusr.com/ugd/b4bf80_135cc9981d2441ca8d60efd6674d804a.pdf?index=true
    • 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00013425.bin
9bb1d1f96c91d8809fa52e8bde7316881ac6345241476d502a815d406bfd4483		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x13425 18872 bytes
font_00_sfnt_off0000f45c.bin
dfb305771be556cc4b56522d2e082ece533ae71cde0f79d9465c7b732d605764		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF45C 5072 bytes
font_01_sfnt_off00010575.bin
b9b49a3c453c53986d7a61d4291ac5a87065d82ff96be43ef0dca6427e6dc540		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10575 3772 bytes
font_02_sfnt_off00011119.bin
14ec56182d41a3d80abc42c031068be94dbb423d7dfcbf07f8d34d5a51cff938		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11119 10132 bytes

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