Malicious PDF — malware analysis report

Static analysis result for SHA-256 b07d653b18f8d931…

MALICIOUS

PDF

77.5 KB Created: 2021-03-07 20:10:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: da16c1ffaeda69b81f49173e0f8b33a8 SHA-1: 61aa74ea84f4b38ea58492fdedc479511ee71131 SHA-256: b07d653b18f8d931baf3721b9aac2d411bf9b730cfdec774beca6824b6b0879c
126 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that is disguised as a manual for an 'iei 212i keypad'. This URL is hosted on a disposable domain and is part of a link farm, indicating a phishing or malware distribution attempt. ClamAV detection and ML classification strongly suggest malicious intent, likely related to phishing or delivering a secondary payload.

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://jottigo.ru/wix?keyword=iei+212i+keypad+manual PDF link annotation
    • https://bukodagunotul.weebly.com/uploads/1/3/4/0/134012399/luvoje.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370542/normal_60025d463baed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456128/normal_6038205636ab9.pdfIn PDF document text
    • https://resodarapasak.weebly.com/uploads/1/3/4/6/134659305/sofebo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451757/normal_5fc80b0e22fce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444098/normal_5ff6884ba6eb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495973/normal_60404c4216de7.pdfIn PDF document text
    • http://natbeach.space/89344886941js9fq.pdfIn PDF document text
    • http://euroshopme.site/45319151656pwfjr.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/what_is_the_newest_ps_vita.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391620/normal_5fcaceffde506.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413567/normal_6017b91f0f1dd.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/pinodonor.pdfIn PDF document text
    • https://xevefozivoro.weebly.com/uploads/1/3/5/3/135339272/8041454.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/ef42352b-ddb1-4999-a710-07eee0b9a6b1/bitoluxibogaxijedujig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d21765d0-9eca-47b5-9e52-c17fd557e14b/kelefodar.pdfIn PDF document text
    • http://duvodix.myartsonline.com/how_to_adjust_seat_on_schwinn_bike.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6401f60-1400-4470-a4eb-68aa0cf8a0cd/pepasofopanefixixuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/689b6efe-21ca-4031-9361-3935de970b6f/maguribim.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_off0000f2ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EE 5116 bytes
SHA-256: 1f8354180d62da79eca34329bebce86e2aeb92a4b6e8302716a2d199daa224f6
font_01_sfnt_off0001045c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1045C 10748 bytes
SHA-256: 896a413e6c158ba37259bf104b3d587929c2768e994bd298a07f8bf9df7d5050

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