Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e97379aa035dff2…

MALICIOUS

PDF

147.1 KB Created: 2021-03-15 08:45:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 93e2b727e04057ac72acc627af6d4ea9 SHA-1: b3161ca7e5136ec0997f40560eac826d51429e83 SHA-256: 9e97379aa035dff2251e7340c7de1f8f4e75f2906b8e9e2726c8e51dfa6c5b6d
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains heuristics indicating it is a link farm and a lure for command execution. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic suggests the document instructs the user to copy content into a shell, which is a common technique for executing malicious commands. The presence of external URIs further supports the likelihood of a malicious payload download or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://golowaki.ru/wix?keyword=mettler+toledo+ind560+calibration+manual PDF link annotation
    • http://zozezobakuk.iblogger.org/33037259756.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450037/normal_604d332a6da44.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/igjhrMl/29692753921.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369626/normal_5fd262018871c.pdfIn PDF document text
    • https://cdn.sqhk.co/ramazunor/ibjdhPo/pinovidavuvu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485153/normal_5fd67ec7b73c0.pdfIn PDF document text
    • https://cdn.sqhk.co/vafizolubev/dgfhd5E/tazavaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374374/normal_603af68d7c952.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380405/normal_6032397594528.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/OmgcigS/41316215088.pdfIn PDF document text
    • https://cdn.sqhk.co/gasariba/Khbwiaz/dibasadogutirakofax.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/8abb6be2-d0d3-4c3b-b585-6638dc9740d7/faxojolamaxo.pdfIn PDF document text
    • https://f3c4034a-4a94-4c47-b6c5-0445626d7bf8.filesusr.com/ugd/655f09_d41768ba23c64c8692aab5311b10ebd1.pdf?index=trueIn PDF document text
    • http://wivufaw.epizy.com/kindle_acepta_formato.pdfIn PDF document text
    • https://9b704b87-3668-414c-a24e-b30400fe0e33.filesusr.com/ugd/51c472_b5444bf31b42459fb8d55e745f6e89b1.pdf?index=trueIn PDF document text
    • http://bajaxugezozego.rf.gd/organizational_structure_template_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8422b696-9035-44c9-b615-db8d03db056e/the_soul_collector_2020_music.pdfIn PDF document text
    • https://76df98a8-3e94-4eee-a6f5-23e1de06049b.filesusr.com/ugd/54c74c_01ff616b5255454b8f3b9c38912c5ebe.pdf?index=trueIn PDF document text
    • http://saliguk.rf.gd/45736703801.pdfIn PDF document text
    • http://dibulokesimerog.rf.gd/christie_boxer_4k30_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50161873-b123-41ac-bbe0-7771eb154189/lalokipokugifemijiti.pdfIn PDF document text
    • http://liwisug.rf.gd/albeniz_tango.pdfIn PDF document text
    • http://mavoweba.epizy.com/37683470440.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7376426-4a9d-42f4-b20d-1b7866e80aa7/aeschylus_eumenides_summary_sparknotes.pdfIn PDF document text
    • https://3e1d1bad-f645-4ebd-ac75-469e7ff7c972.filesusr.com/ugd/e745be_c63b8037ba664000a6e29132b221e02a.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001e061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E061 5472 bytes
SHA-256: 11fe1e38e8f5434ab0190332ccd7b7d0d7522c0d41efa2e100ea1dae2e4902ae
font_01_sfnt_off0001f2ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F2EF 18400 bytes
SHA-256: 719e89fbe886c6d9e86da7d00c06f503b90218863ae09da09af42dfe0b62a0cb
font_02_sfnt_off000228fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x228FA 16112 bytes
SHA-256: 04c641d0aedeaa8c494855f42a2e9ae6fad9e3679126e7dc5c08fccc4b41c292

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