Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c69c4b205a1dbe3…

MALICIOUS

PDF

83.2 KB Created: 2021-03-16 04:04:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34c37acae4f5fcf0407be528760a7d27 SHA-1: 7db15dd5fb87a265f7c1401c431cc20d71364a27 SHA-256: 6c69c4b205a1dbe39d087511bf929507d8fc1b154271392b49458651b45a12c8
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, which is a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a digital antenna manual, directing users to the suspicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://soxebez.ru/wix?keyword=supersonic+360+hdtv+digital+antenna+manual
    • http://dompodklyuch.com/musgrave_public_financef2i8x.pdf
    • http://all-casino.xyz/52096633631jvrj6.pdf
    • https://gokewulifas.weebly.com/uploads/1/3/4/5/134599519/silem-zipef-zatomov.pdf
    • https://gikotaduxig.weebly.com/uploads/1/3/1/4/131454052/pawuxodigu.pdf
    • http://romabeveseruzor.22web.org/amoeba_sisters_video_recap_enzymes_answers_chart.pdf
    • http://pr-bux.online/37380703691yu2km.pdf
    • http://bomezifubaf.iblogger.org/39780614449.pdf
    • http://povutigu.22web.org/fukiwu.pdf
    • http://kleomaften.online/rofuzubemuf9fsdy.pdf
    • http://shimano-stradic.ru/rojekogipogapemomg8r4.pdf
    • http://idealicaitaly.site/moto_g6_play_wallet_case5oe8d.pdf
    • https://fumewalifo.weebly.com/uploads/1/3/4/8/134884483/rufolixojulawilerir.pdf
    • http://ralenexixozuk.iblogger.org/gapobemivag.pdf
    • http://xebenijafojomef.iblogger.org/allen_bradley_nat_9300-ena_manual.pdf
    • http://vemolizikogevu.22web.org/19535749004.pdf
    • http://dixajadabaw.66ghz.com/17033214386.pdf
    • http://sberin.xyz/70188290792bacf6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://powiwuroda.epizy.com/how_many_amps_is_a_10000_watt_generator.pdf
    • http://vedisupekak.epizy.com/1846676703.pdf
    • http://ruzojonawa.epizy.com/82252178977.pdf
    • http://lavodusepigixu.rf.gd/kips_english_vocabulary_book_2020.pdf
    • http://bideliv.rf.gd/busoxumevatitijemebuzes.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9d8.bin
eee545cdca1c3b1100bcdc1a4fff97f024ad7f65525cdc6adf3de5942a0f8219
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D8 6112 bytes
font_01_sfnt_off0000fe75.bin
be169f07eac23044266177151e281b395979bc6cdd89a1bf3d9d77ab5cf888d8
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE75 12476 bytes
font_02_sfnt_off0001278e.bin
57cc76c5d0821ee651784b05a7a7e6780fe5113b8f4359c05205522d11f96342
pdf-font-stream PDF embedded font (sfnt) at offset 0x1278E 16148 bytes