Malicious PDF — malware analysis report

Static analysis result for SHA-256 5da6a8d4699d488e…

MALICIOUS

PDF

88.3 KB Created: 2021-04-14 15:55:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 856fddad9145289c2952333c3828242a SHA-1: 10db8cd00a197ca4c15bf294a5056333d0617aca SHA-256: 5da6a8d4699d488e60a84023a473a26fa5fa9a3c442080045f8b914cde551f23
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9989

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://jacksth.ru/strik?utm_term=best+10000+watt+generator+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379477/normal_5fde6f7db1458.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405904/normal_6041bb52b7e63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410702/normal_60215b75492b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476939/normal_60066d14c7a76.pdfIn PDF document text
    • http://lady-bug.club/734186758363iupf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419654/normal_601483775f610.pdfIn PDF document text
    • http://takipleskazan.org/vivah_video_song_tinyjukeifxmz.pdfIn PDF document text
    • http://natnat.fun/dd_214_separation_code_jga5qnou.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481166/normal_5fc9fde48b0b0.pdfIn PDF document text
    • http://cetapp.xyz/94148938600z2dxh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393761/normal_5fcebbe1aba3c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/software_windows_10_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/36269373312.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/vijaliz.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/lurerixu.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/nuduwikavavawurupo.pdfIn PDF document text
    • https://s3.amazonaws.com/resabomibogodaw/business_management_mg_university.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/nizuxazawutiginojusoxake.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/kebilotir.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/list_and_briefly_define_the_fundamental_security_design_principles.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/audacity_lame_enc._dll.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/zafapinadomeb.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/timixefufojil.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/collections_in_java_by_durga_sir.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/lg_d415_sim_card.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EF4 5028 bytes
SHA-256: cbc880004e370e788686d187d94eed4cf1de588b33418118807d6384cf0af2e4
font_01_sfnt_off00012029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12029 10864 bytes
SHA-256: c491157f89d53d5822d4dab2c1cc2407ee7c6a152ce2cc0a12212eecc4042142
font_02_sfnt_off00014523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14523 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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