Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec8cc4e0f8d0c6ad…

MALICIOUS

PDF

77.2 KB Created: 2021-05-19 22:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: aebccece0a1d97b1851886bf78eef99c SHA-1: 914ec95c1639aa0b1f0ca12e7c1d9fefb5496270 SHA-256: ec8cc4e0f8d0c6ad4e85d64793b7a697477d61f10dcdcb15892e910f63a9708f
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO poisoning or phishing campaigns. The ClamAV detection and ML classifier strongly indicate malicious intent. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic suggest the document is designed to redirect users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/strik?utm_term=can+you+drive+a+prius+with+a+bad+hybrid+battery PDF link annotation
    • https://lupomixuliwir.weebly.com/uploads/1/3/4/7/134728854/sifijulida.pdfIn PDF document text
    • https://mebemawadaj.weebly.com/uploads/1/3/5/2/135295691/1415664.pdfIn PDF document text
    • https://wixotavu.weebly.com/uploads/1/3/4/7/134764887/juroresivovu-xirumavosupi-nugewawo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445564/normal_601113ac80136.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459163/normal_6043b4c92beaa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366324/normal_5fe1e9bf1d83f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501028/normal_5fed96d4bc761.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/bbb4c9cc-48da-4e3e-a3c2-32830e4d7b81/88823873357.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/colts_injury_report_week_12.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0d95e13-e7c7-4cb9-bc02-9ad7c9761d1a/dapokobobepepumunarul.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/graco_pack_n_play_on_the_go_instruction_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/820ee44d-b6c6-4e99-980a-a8adc474bcbf/vegenete.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/37000150580.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e111af5f-de60-4189-9fe2-d7b2ee2db9d4/what_is_url_for_google_search.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/70423613145.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/77360818894.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f368dee8-6c10-48e3-a0b6-174a81a00dce/88701569344.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/627c8a5c-7be3-4135-8e52-931c6445fdb5/cuisinart_bread_maker_cbk-100_bread_pan.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/psicomagia_alejandro_jodorowsky_italiano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4b56bea-861d-4d9d-826d-8a1ae1ec416b/70111375047.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/wapimabafe.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_off0000edde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDE 5312 bytes
SHA-256: 7d34f3eb6875da474dc33b0f433b637cd228b63bdba00b3f922de8ef49cd6f61
font_01_sfnt_off0000fffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFC 10964 bytes
SHA-256: 6e24df926c67b84cb1679277711c5b9ce3339f65689a3b7efe9c5a8d42a94f67

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