Malicious PDF — malware analysis report

Static analysis result for SHA-256 021dc06c02bfcd5c…

MALICIOUS

PDF

78.8 KB Created: 2020-12-22 12:00:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 9a4c66aca866f073a39c5fda7e8b12af SHA-1: 6ec7231df912ebf6bb68aeff4e36d422f6480491 SHA-256: 021dc06c02bfcd5c3ae70705a266499487c6ecf003d39fa1f54f18a579f401f6
222 Risk Score

Malware Insights

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

The sample is a PDF document that contains numerous embedded URLs, many of which point to link farms and redirectors, indicating a phishing or SEO manipulation scheme. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of techniques used to redirect users to malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/aws?utm_term=charting+companion+6 In PDF document text
    • https://bisenerujopok.weebly.com/uploads/1/3/4/8/134898299/xajodakojeboga_najimegin.pdfIn PDF document text
    • https://pirovosarelivo.weebly.com/uploads/1/3/1/4/131406751/bafakoz-mefosatojive-vizezefazarerim-bufibojuz.pdfIn PDF document text
    • https://wukonoru.weebly.com/uploads/1/3/4/4/134441013/pakadijokusowulefez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420617/normal_5fc6172c3e466.pdfIn PDF document text
    • https://revibafejinaj.weebly.com/uploads/1/3/4/4/134485322/7890029.pdfIn PDF document text
    • https://polabobaxadujo.weebly.com/uploads/1/3/4/7/134775235/zovolanasudutuza.pdfIn PDF document text
    • https://woxabajaret.weebly.com/uploads/1/3/4/8/134884657/6152756.pdfIn PDF document text
    • https://zumukematil.weebly.com/uploads/1/3/4/7/134716366/zuluforujumopili.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381973/normal_5f932d29ed6e8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfe8179c08c7f2b9f349f/1606221441632/23301199481.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e75b072-89b0-476a-bafe-2332472531d8/zuxiboj.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2acbdbda9c57a97c99165/t/5fc7125c4f9413233b18ffcc/1606881884416/best_lightsaber_brands.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0fbd9104edf1d778138b3/t/5fcf10cccaa95a391e65cef9/1607405773113/fupixowidajotugogodazo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf52eb7a66e04eaf41a10/1606219055694/lixebapa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c115e41-3ace-4132-8373-4b6a90b569cb/fojaw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdfdbf19d00c472c28c2758/t/5fe05112f3f88b619f39ef53/1608536338792/fenarepanogoxut.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e70f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70F 4984 bytes
SHA-256: 7b966877a5f6a20faffcea40c8bb93ac10ae16205f26f2614115b9a0f5319726
font_01_sfnt_off0000f7d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D0 11740 bytes
SHA-256: 9df40b8b83f012073e23c71cdf4f432fce3ab8c6a793aa7e354d50dbce1adbee
font_02_sfnt_off00011e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E73 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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