Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b303f2298fd71ef…

MALICIOUS

PDF

86.3 KB Created: 2021-03-15 07:20:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a794bbb50bb7ba8f21d1647307d3e7e SHA-1: 823affeaeda1f912f0186e3e183bcd2c36a7b8ba SHA-256: 8b303f2298fd71ef9a72a161850a713468514351d3c0468eca714f7ab1610b45
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains heuristics indicating it is malicious, including ML classification and ClamAV detection. It also features a lure for a password-protected archive and a call-to-action button, suggesting a phishing or social engineering attack. The embedded URL points to a suspicious domain, likely serving as a download source for a secondary payload.

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://ponafet.ru/wix?keyword=hollywood+undead+full+album+download
    • http://lisojuribopuwad.22web.org/xagutimafewofazojuluje.pdf
    • https://cdn.sqhk.co/letopoto/jPiaWja/best_archery_shooting_block.pdf
    • https://static.s123-cdn-static.com/uploads/4406456/normal_5ffd72b896469.pdf
    • https://static.s123-cdn-static.com/uploads/4366969/normal_5fc7da31aba87.pdf
    • https://cdn-cms.f-static.net/uploads/4427091/normal_602e2229b3a29.pdf
    • http://favowavuwoxi.iblogger.org/47870350254.pdf
    • https://static.s123-cdn-static.com/uploads/4492278/normal_5fe2bca4d2aea.pdf
    • https://cdn.sqhk.co/sidogorego/hbhjfQ5/36435817682.pdf
    • https://cdn.sqhk.co/kibutonap/ikigygi/cookie_cat_steven_universe_lyrics.pdf
    • https://cdn.sqhk.co/zaviresodew/iuepfGB/hay_day_wiki_lobster.pdf
    • https://cdn.sqhk.co/xalibolopov/WY8w8hg/69115083080.pdf
    • https://cdn-cms.f-static.net/uploads/4368240/normal_5fd27c07c0f9d.pdf
    • https://cdn-cms.f-static.net/uploads/4385230/normal_604d2dc4d74f7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_88eecf7fd6674c62b5ddebcd1dcbf0d1.pdf?index=true
    • http://vanudedu.epizy.com/cnet_itunes_64_bit.pdf
    • https://77a80da1-97a3-4b40-ba11-54c6d232eb66.filesusr.com/ugd/39a0fd_b228d4fec1214a2b8f9b5ee1050448b5.pdf?index=true
    • https://s3.amazonaws.com/lorerexeg/master_plan_of_evangelism_study_guide.pdf
    • https://s3.amazonaws.com/zowibatev/87887053376.pdf
    • https://a62e46b8-d933-4087-892c-e5439cec6991.filesusr.com/ugd/e9cba9_25c898f9eb4a413b8d9f853fe31812fb.pdf?index=true
    • https://d1b33a7b-cde1-45d4-bc15-d4d3b6236ac5.filesusr.com/ugd/1d64af_f2c3f9dcf1564f1db8bbcaff6effad37.pdf?index=true
    • http://wazuvit.rf.gd/26002712738.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_off000103e7.bin
ed48cfb42adb6055769b50dff1f534e3e0358e695b04d17b182ff54da44a3312		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103E7 4828 bytes
font_01_sfnt_off0001144d.bin
4e9f20970044e3510069516cec6f6cc4c6779ae0fcf64e509ce9df1baf0a816c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1144D 13136 bytes
font_02_sfnt_off00013d87.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D87 4324 bytes

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