Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6bf39afbd15e2a4…

MALICIOUS

PDF

70.2 KB Created: 2021-02-09 05:54:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 868b4272a2e7376c21175db75f283e15 SHA-1: 304708c4a45e7186c88cd953549ba0a40ddbac28 SHA-256: d6bf39afbd15e2a4f4add6d691fa7df431ecc0dda5ba5e1bbbc4f2eb00b1f89e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://jacksth.ru/aws?utm_term=sscn+bkn+go+id+formasi+aceh PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407562/normal_6021cf0f5db94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475212/normal_5fe9b01bea8e4.pdfIn PDF document text
    • https://rorezumi.weebly.com/uploads/1/3/4/5/134591247/tezewozosinilubon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_6016d1e516c0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483097/normal_5ff37f20ddcc1.pdfIn PDF document text
    • https://xulavuxedipi.weebly.com/uploads/1/3/4/0/134017657/xobebesumanela.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367268/normal_5ff16c0578fca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491673/normal_5ff5be1d71f1f.pdfIn PDF document text
    • https://livuwijonirib.weebly.com/uploads/1/3/4/7/134732661/117871.pdfIn PDF document text
    • https://cdn.sqhk.co/xolokenuw/UghOkig/durasipoluzajuto.pdfIn PDF document text
    • https://matigolexa.weebly.com/uploads/1/3/2/6/132682665/84505eee.pdfIn PDF document text
    • https://cdn.sqhk.co/putizimetiwe/yqihfhd/latest_bollywood_ringtone_free_download_2019.pdfIn PDF document text
    • https://tewabigonin.weebly.com/uploads/1/3/4/7/134760563/wezosatiniriv_wujifejed_repujolomuzolar_fenutuv.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/zobuwubedak/beleske_jedne_ane_momo_kapor.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/babosifimem.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/chauvin_arnoux_ca_8335_software.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/crystal_report_xi_free_full_version.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9D2 5420 bytes
SHA-256: 754afd3fb1c6ef67bffcad23286bb4320ef2c49abdcee48e0a48ae589f6948a7
font_01_sfnt_off0000dbf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF3 9928 bytes
SHA-256: 10f992910678c2fa5ad3014edd16d17428dd63f231d8e82caa2c5419eac46f78
font_02_sfnt_off0000fdf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF6 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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