Malicious PDF — malware analysis report

Static analysis result for SHA-256 d22993eb183c83cf…

MALICIOUS

PDF

69.5 KB Created: 2021-03-23 14:42:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 88e5ba9bcccbb866ea15d2a98019d6c2 SHA-1: 30f6dd1e678aa1622fb72e4f1ef1adba31b86512 SHA-256: d22993eb183c83cfdf99c1e94fc1dd9cf3b4b4902e720843d3d606f8dd418163
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, pointing to various domains. One of these URLs, https://mezovuduw.ru/wix?keyword=mi+hombre+obsesion+pdf, is directly embedded and likely serves as a phishing or malware distribution lure. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://mezovuduw.ru/wix?keyword=mi+hombre+obsesion+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446259/normal_5fc80f68ef9c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482413/normal_5ffd45f408a1c.pdfIn PDF document text
    • http://pss77.ru/cuales_son_los_sintomas_de_covid_19_imsshcbp9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450636/normal_5ff06c0413353.pdfIn PDF document text
    • https://puxofigu.weebly.com/uploads/1/3/5/3/135347112/3260483.pdfIn PDF document text
    • http://a-trvl.ru/business_mathematics_chapter_1_questions_and_answersmmcyj.pdfIn PDF document text
    • https://simepatu.weebly.com/uploads/1/3/4/2/134267103/wojitaxopozakew-nulogoromezil-xofebojuve.pdfIn PDF document text
    • http://irbestate.ru/gagiluwc7db.pdfIn PDF document text
    • https://badivesexofo.weebly.com/uploads/1/3/1/8/131856590/3588108.pdfIn PDF document text
    • http://tradebot.space/nxp_mifare_desfire_androidu58hb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391903/normal_603fc7a731cb7.pdfIn PDF document text
    • https://wepizowo.weebly.com/uploads/1/3/0/8/130813330/rezolaxizobalunuzi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464734/normal_5ff02174f3dbf.pdfIn PDF document text
    • http://afracheat2.xyz/dowodotagidobebexal7goa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4fd47d7d-96cb-4cdc-943f-55997d715fc9.filesusr.com/ugd/ab3424_785b83e988094b60a6e9d607679f2e84.pdf?index=trueIn PDF document text
    • https://9cf5cc10-3c2e-4e30-ae6b-73ed7beed88a.filesusr.com/ugd/5c2b46_71043cf0e98b40669e3f3c4fbe7981ca.pdf?index=trueIn PDF document text
    • https://45ae50e1-98a8-4501-9ad6-fc0df438eb43.filesusr.com/ugd/b16523_588f0c9469594477a67ba8cce663ebc9.pdf?index=trueIn PDF document text
    • https://7c3a386c-9197-44ff-a2a0-26a6be1b6260.filesusr.com/ugd/bba797_77ce3820b5dc47dda6b07d7f2667ca2e.pdf?index=trueIn PDF document text
    • https://fac30f9c-1bc3-4ff6-ac40-7ced1d2a170b.filesusr.com/ugd/3b7182_64bd4e99c81b4ee78f052c01524f29cc.pdf?index=trueIn PDF document text
    • https://0793e221-2e7e-4176-aae8-4ff4b75d8f7a.filesusr.com/ugd/64bd79_20f7bee95fef42eb9c404b465822da6c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/ffxiv_carpenter_leveling_guide.pdfIn PDF document text
    • https://c01188fd-d8af-4b86-846b-090f7ecd58d8.filesusr.com/ugd/9058e5_969d2824667b40ec9f46986f6debe07a.pdf?index=trueIn PDF document text
    • https://006b50d4-ad2a-4261-8279-34542eb0d7b0.filesusr.com/ugd/a640e9_b52f6b43d0d14e78a39ea695d88f16d1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xujitezu/18860406678.pdfIn PDF document text
    • https://56f9ebfc-1b58-4ccd-90b9-24793863e956.filesusr.com/ugd/0f3536_29cd0ca15314419bb884534c23bb193d.pdf?index=trueIn 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_off0000d06f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD06F 5184 bytes
SHA-256: 6ad5118cf0b61e83ec98730ba77e8b87df40b31ac210e99885b152d586c83a65
font_01_sfnt_off0000e1e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E9 11404 bytes
SHA-256: ca38bea71689b9cf1eb2958221c1dd035063a972fa5b8f84bfed17841be8a4df

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