Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd4b249db28d1a26…

MALICIOUS

PDF

79.2 KB Created: 2021-03-20 21:06:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7d99e8f51934ae138417178dd9e02c5 SHA-1: d64cc52a9462a5c610011936f315fc44ff91fb6e SHA-256: bd4b249db28d1a26e1c2a096d351cf4fc5a5ebbfeac557c301d9d8f3d5f7004c
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including PDF_SEO_LINK_FARM and ML_NYX_PDF_MALICIOUS, indicating a high likelihood of malicious intent. The presence of numerous external links, with one pointing to 'https://lozipotod.ru/wix?keyword=2k+wwe+apk', suggests a phishing or malware distribution campaign. The ClamAV detection further supports its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lozipotod.ru/wix?keyword=2k+wwe+apk
    • https://cdn.sqhk.co/fukafodifi/Yhbidhf/ladupagujeviweka.pdf
    • https://cdn.sqhk.co/lukuvekeliki/hiPwPFe/58565719243.pdf
    • https://kolekidir.weebly.com/uploads/1/3/4/4/134441437/kosota.pdf
    • https://cdn.sqhk.co/fabozesemi/gj06nUq/25101971423.pdf
    • https://fuwofinirofen.weebly.com/uploads/1/3/1/6/131637723/togazibevobogegijur.pdf
    • https://gamidamivagug.weebly.com/uploads/1/3/5/3/135324690/3933957.pdf
    • http://pofefazuvalime.iblogger.org/borug.pdf
    • https://zenamuvevabun.weebly.com/uploads/1/3/1/4/131453902/semezabodiwamow.pdf
    • https://jidedenevunuva.weebly.com/uploads/1/3/4/4/134498736/8572710.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/1a3890c3-dfbf-431c-9d99-a257d8633089/delaxamu.pdf
    • http://porilebunenagu.rf.gd/kit_logo_persija_dls.pdf
    • https://2e8e3215-33bf-4fe1-bc67-b38dac560527.filesusr.com/ugd/269bb8_af327f6472ff435dab1a95d1c12be5f2.pdf?index=true
    • https://uploads.strikinglycdn.com/files/7de39bbd-f86b-478d-a6dd-d580fa0a6336/80463339879.pdf
    • http://wulisafule.epizy.com/ejemplo_de_un_contrato_de_arrendamiento_de_una_casa.pdf
    • http://besosive.epizy.com/relaciones_diagrama_de_clases.pdf
    • https://a68e2ff5-bf17-48e3-82d4-ceb975b85758.filesusr.com/ugd/760101_295031a235214f5d8bdaa45437488879.pdf?index=true
    • https://28932ed2-21d9-4123-99cb-fcff0aac4472.filesusr.com/ugd/cc089a_fbccf294166b4a8bb3d0497d0a1ea63a.pdf?index=true
    • https://uploads.strikinglycdn.com/files/a784083e-cc72-42fb-95b3-68664c4ee450/biwogetukozopex.pdf
    • https://uploads.strikinglycdn.com/files/9aecfdf0-edd3-45c5-9888-6e068aed587c/82326025809.pdf
    • https://uploads.strikinglycdn.com/files/9884b482-3899-4163-8c9d-37dac7bde978/37854937747.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edc7.bin
983651b1f2b4b7331e5853787c8a35ff7c96ba9a5d4ebeaec5b64af74f8c63e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC7 4144 bytes
font_01_sfnt_off0000fbd6.bin
d30a57f4961f9e3d88b7b205a60b01970edf59a6cf254dd989a8401d4d16b597		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD6 11108 bytes
font_02_sfnt_off000121ba.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121BA 4324 bytes

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