Malicious PDF — malware analysis report

Static analysis result for SHA-256 01c8d2f67d442a3a…

MALICIOUS

PDF

78.9 KB Created: 2021-02-14 03:44:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 4bb74f5ea88cd3458810dc934b6f0d83 SHA-1: 0bdb01555080e17c45756accd7b603298b2df3df SHA-256: 01c8d2f67d442a3a69e5fd085a3ae962d565e97705b9317bf64857f6092e0987
126 Risk Score

Malware Insights

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

This PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, contains references to 'Andhra pradesh government schemes pdf', suggesting a lure for users seeking information. The presence of numerous external URIs, many hosted on disposable domains, points towards a phishing or malware distribution scheme. No scripts were extracted, but the PDF structure itself facilitates redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/wb?keyword=andhra%20pradesh%20government%20schemes%20pdf PDF link annotation
    • https://zegekeli.weebly.com/uploads/1/3/4/6/134616407/0af699.pdfIn PDF document text
    • http://znatural.space/457207935902rd1e.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/kiije7H/checar_tu_saldo_at_t.pdfIn PDF document text
    • https://cdn.sqhk.co/xekawiba/aieriYq/puwavesekome.pdfIn PDF document text
    • http://electriccannoz.club/top_2020_songs_countryxqdcx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481552/normal_602488bbd951a.pdfIn PDF document text
    • https://sagerogokijisoj.weebly.com/uploads/1/3/4/6/134601402/gefefasutevo.pdfIn PDF document text
    • http://how2clever.com/photosynthesis_virtual_lab_answer_kezdzb1.pdfIn PDF document text
    • https://notagudoda.weebly.com/uploads/1/3/0/7/130776089/6a9f38078f7fe.pdfIn PDF document text
    • https://cdn.sqhk.co/lupobikud/fjcih7f/62750108435.pdfIn PDF document text
    • https://vesanawe.weebly.com/uploads/1/3/4/6/134602832/2252400.pdfIn PDF document text
    • http://price-list.moscow/amsco_ap_human_geography_answer_key_unit_3drzyn.pdfIn PDF document text
    • http://gefejisu.22web.org/octopus_1._1_1_apk.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/dejazuvorira/44125059976.pdfIn PDF document text
    • http://jawolaguf.rf.gd/cheat_engine_6._3_roblox.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.

FilenameKindSourceSize
font_00_sfnt_off0000f7a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A9 5584 bytes
SHA-256: f08ea4c7377ef10e72c72eb9e7554a506f8ea6e8d71c372f1c81aba8b54187f9
font_01_sfnt_off00010a86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A86 10640 bytes
SHA-256: 2cdd6c98ee4c9cd05c50d3f3b977777efb89dfc38e4876e5368e87aa9672f836

Open this report in the interactive analyzer, or submit your own file for analysis.