Malicious PDF — malware analysis report

Static analysis result for SHA-256 a606e3498eca0c9d…

MALICIOUS

PDF

219.7 KB Created: 2021-03-28 09:46:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b257bf661a34fe04e58f4636e2552079 SHA-1: 572ffbfa58d6993629f918d3d9f8c068b753fa17 SHA-256: a606e3498eca0c9da12071ff9672ba1444b5e3a0c068f4b12271f8d1cac225cf
96 Risk Score

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 0.9551

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://druttle.ru/123?utm_term=hanasu+volitional+form+japanese PDF link annotation
    • https://cdn.sqhk.co/guwuweri/ji512ii/blockman_go_pc.pdfIn PDF document text
    • https://fajesafopumusid.weebly.com/uploads/1/3/1/8/131871419/2df190.pdfIn PDF document text
    • https://cdn.sqhk.co/zufutetuwume/LoDjhji/53616154341.pdfIn PDF document text
    • http://wow50.pro/56234733666isre0.pdfIn PDF document text
    • http://dusanaputojinon.mygamesonline.org/lion_king_circle_of_life_piano_sheet_music.pdfIn PDF document text
    • http://labincom-med.ru/athanasius_on_the_incarnation_cs_lewis2lddw.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/bhbBFVL/alienware_monitor_34_specs.pdfIn PDF document text
    • http://serawuv.mygamesonline.org/89166879895.pdfIn PDF document text
    • https://niromovikusuzu.weebly.com/uploads/1/3/4/6/134651616/1c9cdffb6.pdfIn PDF document text
    • https://fupefodomixeja.weebly.com/uploads/1/3/4/8/134889506/4303657.pdfIn PDF document text
    • https://cdn.sqhk.co/banamasuvaj/he2yibJ/nebuniribotogojitu.pdfIn PDF document text
    • http://xufelaketodo.getenjoyment.net/25602125364.pdfIn PDF document text
    • http://regvoolkim.website/believer_piano_sheet_music_robloxfbury.pdfIn PDF document text
    • http://mkr-olimp.info/7988335821187dsf.pdfIn PDF document text
    • http://yourbigdick.space/how_to_use_crock_pot_express_slow_cookerenbhs.pdfIn PDF document text
    • https://powigakiluxoja.weebly.com/uploads/1/3/4/5/134521341/menideve.pdfIn PDF document text
    • https://gomafaned.weebly.com/uploads/1/3/5/2/135296522/832101.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://d78d2789-9aef-4bfd-88be-9093bec910ef.filesusr.com/ugd/87a178_ce67ec4af4d64058b388a544ebc53f0e.pdf?index=trueIn PDF document text
    • http://viwuwijagabote.myartsonline.com/42745163771.pdfIn PDF document text
    • https://61069a5e-3c5f-4884-a3c7-8c7552058b74.filesusr.com/ugd/0789d5_c2bf66245b7d4813af215bf42341f0c5.pdf?index=trueIn PDF document text
    • https://a80c0318-1640-4d50-a016-df037fc402b9.filesusr.com/ugd/895bef_48459cbc5135495e8fe013cda7c1fbcd.pdf?index=trueIn PDF document text
    • https://7afcd0b8-98df-42a4-afe0-9544d44c9539.filesusr.com/ugd/74e9cf_5964fa4f34504aeea710acf8bd86b77a.pdf?index=trueIn PDF document text
    • https://fe426b01-1dd0-498a-b08e-7ec37e320b94.filesusr.com/ugd/6b45f0_d787176323f440eeba2dfca9ab44f265.pdf?index=trueIn PDF document text
    • https://e1bd05e7-a2ed-43df-b5fc-9bc8ee0b1a84.filesusr.com/ugd/08acf3_58cf28b1c756419ca18060d8ba0c77bb.pdf?index=trueIn PDF document text
    • https://f06ae689-34e6-4fd9-b749-a5985747e370.filesusr.com/ugd/4117a9_d4e021a87c1d4baa8ea81e83638662c3.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0001ea28.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1EA28 84860 bytes
SHA-256: 40a9db03b0d9449cc4c839cb695d50eade4903c643ae100d160c41de033dc3c6
stream_007_off0003445d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3445D 17968 bytes
SHA-256: d35ea6498557ddff6664d822288055ad39ed60c7cc259ac8d1a3782fddbde773
font_01_sfnt_off0002e6b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6B5 5144 bytes
SHA-256: 0d9228b165d2c47d8ab74cceb389b38ef7ea79249d492db6b9bfa6b02e945ba0
font_02_sfnt_off0002f81d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F81D 7840 bytes
SHA-256: 85ed183da7dd6db38346a54c624f7aad7e89ef7249408f266c5111f7440455cb
font_03_sfnt_off00030d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D56 18908 bytes
SHA-256: 1ed7b41fe754f0df43d822f7beda8384e37e1cd1736d793b8ce583e8600ed9ea