Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a3a260763d40a5…

MALICIOUS

PDF

74.6 KB Created: 2021-05-22 13:17:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 905b8bd29d81051c35d78362f948ab08 SHA-1: 6f0c6f79d63394d7a5ee2708e161fa7586cfb381 SHA-256: 01a3a260763d40a51d1691417d6ccd43bea0b5b8401596598f11c8e28fd56d87
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains numerous external links, a technique often used in link farms to obscure malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded URLs and the 'PDF_SEO_LINK_FARM' heuristic suggest the document is designed to redirect users to malicious sites, potentially for downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • 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
  • 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=project+status+report+template+in+word PDF link annotation
    • https://sorezoxawo.weebly.com/uploads/1/3/2/7/132712551/ddfce7c445bd806.pdfIn PDF document text
    • https://jovovanin.weebly.com/uploads/1/3/1/8/131871717/3a03535859d2.pdfIn PDF document text
    • https://meverofukibax.weebly.com/uploads/1/3/4/6/134620555/9422571.pdfIn PDF document text
    • https://sirofutalaga.weebly.com/uploads/1/3/4/7/134706343/2d1d149ae33.pdfIn PDF document text
    • https://vugogirofezufus.weebly.com/uploads/1/3/4/3/134355312/gexopejubavijuzi.pdfIn PDF document text
    • https://bapidovomefizeb.weebly.com/uploads/1/3/4/3/134382768/fulobefitepim.pdfIn PDF document text
    • https://fojexoduzasob.weebly.com/uploads/1/3/4/6/134693365/6128643.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/69028351-ad37-483f-a40b-1366c38eb9c7/ue_megaboom_charger_nz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dcf1427-63fb-4f17-a7a2-3507df33df87/gta_v_psp_download_rar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa239b06-a571-4693-91c7-7c046c40968c/karorazezizadar.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/72051635113.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/jebajebikine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8e0bd57-ba34-4b70-9425-17df10674a1b/math_formula_in_hindi_file_download.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/how_to_replace_battery_liftmaster_keypad.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/tomizeluzixukabimone.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/99303174105.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/steam_api._dll_pes_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/bagokiko/5196677345.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/909b7d27-03a7-4456-9df8-9d3536f8288a/how_to_read_wrist_blood_pressure_monitor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f2cf3f9-3b90-4292-a1c5-02b42232dd7c/jesawewelufigirufewonixu.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/gujisazawitir.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/97236414159.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_off0000e6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AC 5388 bytes
SHA-256: ff512c6c62c9051980c2c4b0e4d8c1ce3be6b8825e57b9159d4f3ea32f58a499
font_01_sfnt_off0000f8f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F6 10536 bytes
SHA-256: ac54628e65de23be56f3cf383aa012b048e340cc0802a3ee8ddbdc5feddaf09d

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