MALICIOUS — 71cad41e77be752f57e6326e2c2f2af3ba099bb2913e0701a503c925597d3f1b

MALICIOUS — 71cad41e77be752f57e6326e2c2f2af3ba099bb2913e0701a503c925597d3f1b is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100). 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 71cad41e77be752f57e6326e2c2f2af3ba099bb2913e0701a503c925597d3f1b
• SHA-1: ffb2fcb18539af9d223f165b885501cc74678ad9
• MD5: 4dae30f137868442b44cf2eb5166e9f0
• ssdeep: 1536:Rr6R5ur9zWGhNevLuGzYtfM6TCciCPQ2halswiZxrCPkkKIWYpO2+WlTKF19qN0D:25ur7re9zYHO6aywiWPk127iwEoO
• TLSH: T1A53AD0F330D7DE8DB2938F9775EA16986186F6C43621AFA0408876AC807C5BDEF50521
• Submitted as: 71cad41e77be752f57e6326e2c2f2af3ba099bb2913e0701a503c925597d3f1b
• File type: pdf · Size: 100346 bytes
• Verdict: malicious (98/100)

Detections (4 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• ClamAV (daily): Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1105
• T1566.002

Why this verdict

The malicious score of 98/100 is the fusion of 7 weighted signals:

• ClamAV (daily) flagged Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 (rule Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0) - engine signal, weight 0.90, confidence 0.95
• Embedded link rated malicious by URL analysis: http://sirindhorn.net/upload/File/faxilawonejugagesamolar.pdf - network signal, weight 0.70, confidence 0.80
• Contacted 20 external host(s) and 8 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Embedded network infrastructure: http://sirindhorn.net/upload/File/faxilawonejugagesamolar.pdf, https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/88vis01b52s96d286pjr5kk11j/99766246380.pdf, http://infunplastic.com/d/files/xajalatidowurededa.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Extracted generic config (16 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9727 behavior events · 0 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• _dosvc._tcp.local
• desktop-hsgcbep._dosvc._tcp.local
• desktop-hsgcbep
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• ntp.ubuntu.com
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\60f058667bad690c181fc746c1d861ae.png - e9cb18cd6f7bc1bb606f9c01227cb1e58492b11024f9d39ed3d9772c51c922d4
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 12148413665a78cb6416e43a45d3b88ff58d0123aa5c6afa232b1b7708c6be4a
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://feedproxy.google.com/~r/Xvkpad/~3/D9plVHj2VOU/uplcv?utm_term=los+7+habitos+de+los+adolescentes+altamente+efectivos+sean+covey+resumen
• http://sirindhorn.net/upload/File/faxilawonejugagesamolar.pdf
• https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/88vis01b52s96d286pjr5kk11j/99766246380.pdf
• http://infunplastic.com/d/files/xajalatidowurededa.pdf
• https://printsolutions.ro/uploads/wysiwyg/files/nasotipunezige.pdf
• https://agros.net/uploads/file/35881305989.pdf
• https://ctners.com/ckfinder/userfiles/files/46856321429.pdf
• http://donaldnathanlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sadaror.pdf
• http://soc-in.com/data/media/files/86884089891.pdf
• http://yusungchart.com/userData/board/file/27890108138.pdf
• http://csc-vietnam.vn/uploads/userfiles/file/32364039849.pdf
• http://thcsducthang.pgdbactuliem.edu.vn/ckfinder/userfiles/files/23962781676.pdf
• http://ap116.ru/userfiles/file/31230803308.pdf
• http://interiorconsignments.com/media/file/62286499858.pdf
• http://chothuexehochiminh.com/userfiles/file/zarazufur.pdf
• http://cementfeet.com/userfiles/file/pitivexewaf.pdf
• http://canadianrockies.info/files/file/lufizevuwezor.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://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D

Embedded domains

• feedproxy.google.com
• sirindhorn.net
• cananalimdar.com
• infunplastic.com
• agros.net
• ctners.com
• donaldnathanlaw.com
• soc-in.com
• yusungchart.com
• ap116.ru
• interiorconsignments.com
• chothuexehochiminh.com
• cementfeet.com
• canadianrockies.info
• www.w3.org
• purl.org
• ns.adobe.com
• printsolutions.ro
• csc-vietnam.vn
• thcsducthang.pgdbactuliem.edu.vn

Embedded IP addresses

• 51.132.193.104
• 52.123.252.220
• 184.84.165.136
• 52.230.59.222
• 52.110.12.47
• 4.247.188.233
• 4.230.171.124
• 20.165.94.63
• 4.150.223.101
• 20.236.44.162
• 74.178.240.61
• 52.123.128.14
• 172.178.240.161
• 20.165.94.46
• 203.26.79.13
• 57.155.101.212
• 52.168.112.67
• 4.209.250.170
• 20.184.175.5
• 52.148.114.188

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report