Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd4456361914a105…

MALICIOUS

PDF

72.0 KB Created: 2021-01-07 04:51:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: e14118f3ab284c61dbbdcb2a8aa46792 SHA-1: 7bc4f6f6f53f0f0e6d56cd32b5845cb6b7f32d75 SHA-256: bd4456361914a1052fd7429bdc1c4655911f41db5cf8d1623f73804818e2d3ac
214 Risk Score

Malware Insights

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

The PDF contains multiple links to external websites, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a "Pokemon x strategy guide pdf". The presence of numerous links and the malicious redirector indicate an attempt to lead the user to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/123?utm_term=pokemon+x+strategy+guide+pdf In PDF document text
    • https://cdn.sqhk.co/badaxiloru/xviaAHM/samsung_blockchain_wallet_download.pdfIn PDF document text
    • https://xukanimuwuvam.weebly.com/uploads/1/3/2/6/132696198/d66635d9d2.pdfIn PDF document text
    • https://daxulidotuviwo.weebly.com/uploads/1/3/4/5/134597057/wudas_tafetawej_mekukenadokax_mijuz.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/6687882.pdfIn PDF document text
    • https://vesovagesigopek.weebly.com/uploads/1/3/4/6/134614223/vodebolerelotiza.pdfIn PDF document text
    • https://pimupaxepa.weebly.com/uploads/1/3/1/8/131857198/rotikep_gekana.pdfIn PDF document text
    • https://xagufiwukana.weebly.com/uploads/1/3/4/6/134694649/xegubezupifozi-xozawojosu-vaxugivajirum-juwujowalap.pdfIn PDF document text
    • https://cdn.sqhk.co/fanoxozowupe/ZniiSy8/war_robots_filmpjes.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/fedojigudaj/lightweight_tripod_head_large_format_camera.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/heartbeat_song_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/mekuz.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/coreldraw_x5_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/personality_disorders_dsm_5.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/zubixodebo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF15 3840 bytes
SHA-256: b578ca989edc8019a6761b8ffc46ba0ef1e486ce716066e608673fd94ccd1a27
font_01_sfnt_off0000ccc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC2 5448 bytes
SHA-256: 2042b57dd5b6ffdb2376028817b82168fbe1aa2858d433a7fc11346808085775
font_02_sfnt_off0000df3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3C 10396 bytes
SHA-256: ee1b5bac27261c585e7d9b68a96fdf198dcd789a0daf2c797ddc8c12c8da272c
font_03_sfnt_off000102e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102E3 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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