Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bda73689f584855…

MALICIOUS

PDF

77.0 KB Created: 2021-03-01 04:36:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: e22f178a42ec33ef8dcae7d115042f55 SHA-1: 209b346f540f10e92c285b41088e1d70bba92f93 SHA-256: 5bda73689f584855437ff7253edc0e2d9e67260ccc79af43a7c96cf81afe5d84
156 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to suspicious domains and appear to be part of a link farm designed to host malicious content. The document body, though heavily obfuscated, suggests a lure related to search engine results. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.

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 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://gimoguvi.ru/123?utm_term=how+to+search+google+images+with+a+photo+on+ipad PDF link annotation
    • http://startbastar.online/la_trampa_de_satanastm3ee.pdfIn PDF document text
    • http://instofficial.online/57098577155z21br.pdfIn PDF document text
    • https://kiloxuloje.weebly.com/uploads/1/3/5/3/135398856/0d286fbfef37.pdfIn PDF document text
    • https://ginadilu.weebly.com/uploads/1/3/4/7/134768391/9338451.pdfIn PDF document text
    • https://gixisisopovi.weebly.com/uploads/1/3/4/7/134713576/8961333.pdfIn PDF document text
    • https://rofizikijomosuj.weebly.com/uploads/1/3/4/0/134012810/371e1f8d62893de.pdfIn PDF document text
    • https://nukanepinax.weebly.com/uploads/1/3/1/4/131454046/dezepefixologat_fatabetawa_bolawusurax.pdfIn PDF document text
    • http://puvepum.getenjoyment.net/sirusufarowoje.pdfIn PDF document text
    • http://flylovel.com/zuvumo9lxot.pdfIn PDF document text
    • http://4338bacchus.com/re2_super_tyrantifelp.pdfIn PDF document text
    • http://forexgeeks.net/lg_front_load_washing_machine_ie_error_codelfrwd.pdfIn PDF document text
    • https://demomejisalazi.weebly.com/uploads/1/3/4/8/134869482/zunitoka-kalen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373259/normal_5fedc7d10a679.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://s3.amazonaws.com/defipedibe/35477369937.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/wamokomavarifuxubolovif.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/video_er_firefox_48.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/dipipazoxadodutimo.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_off0000e068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE068 5328 bytes
SHA-256: efe899f7af2357f3afa350db404cbdad912c8827bf2480ff3e18df71dd9b6221
font_01_sfnt_off0000f265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF265 10956 bytes
SHA-256: b4c229fd0ed09eb54ff3883305c603400a1bf06690e4170d89836f484f4f6a00
font_02_sfnt_off000117d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117D8 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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