Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa880dfa20d504de…

MALICIOUS

PDF

101.4 KB Created: 2021-03-21 20:47:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aae3af7267dde8643f7e038ffbcd2128 SHA-1: 035ed2d19e93a8a8a3187ccff5bc8b1e7c87277b SHA-256: fa880dfa20d504de465c2c187373d7182f7376efc777f56e1180cab63832a622
104 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and ClamAV detection confirms its malicious nature. The heuristic 'SE_URGENCY_LURE' suggests a phishing pretext, likely to trick the user into clicking the malicious link. While no scripts were explicitly extracted, the PDF structure and embedded URLs are strong indicators of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://seumenha.ru/strik?utm_term=best+online+eyelash+extension+training
    • https://static.s123-cdn-static.com/uploads/4416927/normal_5fe41386347ce.pdf
    • http://evatopshop.xyz/ban_gayi_rikshawala_dj_songosjch.pdf
    • http://freehookup.xyz/merolilevugawokefujilyigpr.pdf
    • https://cdn-cms.f-static.net/uploads/4420927/normal_5fd2efb70a407.pdf
    • https://cdn-cms.f-static.net/uploads/4380857/normal_602d39b6168b2.pdf
    • http://5-euro.info/gafikuwojoxubokiv3vqwh.pdf
    • http://storeeu.info/bozokbw7os.pdf
    • http://ig-mediateam.net/daxaferegabuwulugiloz2p86.pdf
    • http://xagekofa.iblogger.org/harman_xxv_pellet_stove_distribution_blower_not_working.pdf
    • http://ninozefumuwu.iblogger.org/attendance_sheet_template_for_preschool.pdf
    • http://reduslimer.website/minecraft_pc_free_1._14._4ouk7z.pdf
    • https://cdn-cms.f-static.net/uploads/4500446/normal_6027f316b2a0e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mawesenasijoser/gavodavisavojube.pdf
    • http://funazowo.rf.gd/siwiwegir.pdf
    • http://funegabupeg.rf.gd/binaural_beats_research.pdf
    • https://s3.amazonaws.com/tokit/application_for_leave_form_office.pdf
    • http://bemijeranokawu.epizy.com/27994527610.pdf
    • http://zowozuzibo.epizy.com/78208098768.pdf
    • http://tuvinasonim.epizy.com/23552570588.pdf
    • https://s3.amazonaws.com/vavebufevodutob/crying_guy_meme_template.pdf
    • http://dodudulu.epizy.com/86995213098.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2f5.bin
9072bf546defe44eef4bd8a4cd413dde6c68cc170fb408ac03575b412d37dc23		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F5 30000 bytes
font_01_sfnt_off00014ebc.bin
967d997e77aee55d092d1b85647794552cd5a370aa94cf54ef7f67423520eda6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14EBC 5168 bytes
font_02_sfnt_off00016059.bin
19c332dfbed1dd530b15e88d9271ebc27357843a383f6e78c221e1dfc8b7f7e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16059 11688 bytes

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