Malicious PDF — malware analysis report

Static analysis result for SHA-256 0171b0e266964156…

MALICIOUS

PDF

74.6 KB Created: 2021-03-22 04:51:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6de10c8605491255c17da14a1a34f350 SHA-1: e8d6cf64c5233822663515d22099bdbd440dde74 SHA-256: 0171b0e266964156190eb3fa277770f0be4965382de88505466f5736723e341b
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The PDF contains a large number of external links, indicating it functions as a link farm, likely to direct users to phishing sites or download further malware. The presence of embedded URLs and the overall structure strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://soxebez.ru/wix?keyword=be+taylor+productions
    • https://cdn.sqhk.co/karadirimose/ihjxhj6/car_stickers_custom_design.pdf
    • https://cdn-cms.f-static.net/uploads/4384050/normal_603ec5f6bd8a8.pdf
    • https://static.s123-cdn-static.com/uploads/4446507/normal_5fee6fcb59b31.pdf
    • https://cdn.sqhk.co/rokabumake/w3aD9gj/tic_tac_toe_home_friends_app.pdf
    • https://cdn.sqhk.co/josedinis/1Njden3/69393889510.pdf
    • https://cdn.sqhk.co/kisasizaro/tE4hhge/happy_racing_apk.pdf
    • https://cdn-cms.f-static.net/uploads/4499023/normal_603121f626e82.pdf
    • https://static.s123-cdn-static.com/uploads/4402717/normal_5ff7777e004de.pdf
    • http://zilijakal.iblogger.org/8906271154.pdf
    • https://cdn.sqhk.co/tajiwikiter/S5EjgbH/toxokikusuzigimesekini.pdf
    • http://dixagodal.iblogger.org/numerical_reasoning_test_free.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://de7eff9d-5c50-4122-bb99-ee112abf7a8f.filesusr.com/ugd/db8f21_f257de40692f43f8a91cd9b0660ab78b.pdf?index=true
    • https://0e627107-309b-4451-a84d-e7064c41fccd.filesusr.com/ugd/04c368_d1b0a884555f4de3930aa6a026c25733.pdf?index=true
    • https://b7e73dfe-ad35-4791-b4f7-7500f5b7882c.filesusr.com/ugd/bc79a4_85be236996f843a48faf3ec19198a993.pdf?index=true
    • https://b0837e58-6fb0-4b2c-a83d-c451c4d85cc2.filesusr.com/ugd/1169b1_68334fbd7f894497a335396a2e005747.pdf?index=true
    • https://f50ece36-1901-4a7b-9396-968a400df7f4.filesusr.com/ugd/3ecb95_c964995e8d2a412eb8747b6f363f6754.pdf?index=true
    • https://cb70cc59-2297-49c3-b7e2-2ac7e26e28d4.filesusr.com/ugd/4479ed_5cb1c5c7302042ce9955f84b66c2d86e.pdf?index=true
    • http://sadopumudoraka.epizy.com/zojofetegu.pdf
    • https://e691ad07-92dc-45fa-af10-8929b4045ede.filesusr.com/ugd/87b9a8_198739da54114d33928f251b583135c2.pdf?index=true
    • http://pawekixezad.epizy.com/world_travel_and_tourism_competitiveness_report_2018.pdf
    • https://f84ffea9-2755-49c2-9cb5-47ca8b55fe65.filesusr.com/ugd/0adedf_40e5049615764b7288fd27dc3e869955.pdf?index=true
    • https://95a83a18-022f-4aa5-9dc2-588eac4c5c4a.filesusr.com/ugd/ccb6ab_4c4bab0e489c4326bc88d9077e9bc180.pdf?index=true
    • https://8ed7b8cb-9bae-4def-ad9b-66b28cd11f91.filesusr.com/ugd/740d8c_0af2e3e2fc0e466698b5c0198556ed66.pdf?index=true
    • https://5f8b0e40-2141-4341-98ab-6145db4b8156.filesusr.com/ugd/2072cd_f8ee4ec3d4174c3882f61b6b65953162.pdf?index=true
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4be.bin
7f0cde6728f91e6462f1d10b2eacca608a45505a91e544359183e9c1a4a39eed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BE 5220 bytes
font_01_sfnt_off0000f693.bin
dcd39dca2b8e2c99a052bd65aa007ee661aad3cc78800168cc5c1a4ee7f4fc06		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF693 11248 bytes

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