Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e49f739602f1000…

MALICIOUS

PDF

244.7 KB Created: 2021-03-24 00:58:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: efb3b4cc9d783a1de83ab8679eddfdd7 SHA-1: 913a02330b1212b39ba75781b66c03c3783ceab2 SHA-256: 6e49f739602f10000ffec39c5749bd0377a71f8ec7d4ef685c79fcdb84c3eb74
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a phishing domain. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The PDF structure and embedded URI heuristic confirm the presence of an external link, likely used to deliver a malicious payload or redirect the user to a fraudulent site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://dugedepap.ru/award?keyword=ancient+carthage+pdf PDF link annotation
    • https://fetepidema.weebly.com/uploads/1/3/4/6/134684810/vogikim-vonetutolot-geduras.pdfIn PDF document text
    • https://kesegupopu.weebly.com/uploads/1/3/4/1/134131766/baxofawoso.pdfIn PDF document text
    • https://bopojebokup.weebly.com/uploads/1/3/1/4/131408204/7785855.pdfIn PDF document text
    • https://jemaveroker.weebly.com/uploads/1/3/5/3/135391058/bebazovejupazab_rimokabalilas_tazizom.pdfIn PDF document text
    • https://pebepatesova.weebly.com/uploads/1/3/4/4/134447190/9713417.pdfIn PDF document text
    • http://tonilukibifed.iblogger.org/zabebuj.pdfIn PDF document text
    • https://nimivisedasefu.weebly.com/uploads/1/3/1/0/131070972/4662293.pdfIn PDF document text
    • https://tuduzijusesuzi.weebly.com/uploads/1/3/1/4/131406801/kerapok_ladexa_lanaxapilazedi_niwenezaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pujinit/line_rangers_collection_guide.pdfIn PDF document text
    • https://cb8582fb-ab29-4f13-bfd4-623ca244ab52.filesusr.com/ugd/d61b30_699bfb1acc4c424bab1234f016e271f9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/somamere/are_hp_stream_laptops_good.pdfIn PDF document text
    • http://gametusepezuka.rf.gd/analytical_reasoning_by_mk_pandey_bsc_publications_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jotogorurekuro/longwood_lake_oak_ridge_nj.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/chess_rush_wallpaper_android.pdfIn PDF document text
    • http://pikididubemet.epizy.com/panagopun.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/62813753290.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/independent_t_test_apa_write_up.pdfIn PDF document text
    • https://f579be4a-c2ec-451d-94ee-532237c06880.filesusr.com/ugd/9f6a24_5ce89e1a23784fbc893f3eba0e13f2d7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/nasagafa.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/cheat_sheet_centos_7_terminal_commands.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003633b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3633B 5196 bytes
SHA-256: dc7983576360e822e9639bc985e02405fd6bebef0306c6be0b2de2cb2d787186
font_01_sfnt_off000374e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x374E9 19484 bytes
SHA-256: a89f01daa9c0e7248e1b74afdc15ffbecc7870f14f20f658c0be56229c573545
font_02_sfnt_off0003acf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ACF2 7940 bytes
SHA-256: f3fe9035ec5f72c30832628a5d5e33cd8d76b9751beb389e970dea1fdecd4df6

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