MALICIOUS — 8384ab3533e189e37e7be1daa3da74a9587590431c348011a549c6eae93f7a05

MALICIOUS — 8384ab3533e189e37e7be1daa3da74a9587590431c348011a549c6eae93f7a05 is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100). 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 8384ab3533e189e37e7be1daa3da74a9587590431c348011a549c6eae93f7a05
• SHA-1: cb6618033ed3b36cc2e7e40b50c97b56def8c98a
• MD5: 353bd93fec244f3f8847ccf61cd56a6b
• ssdeep: 1536:SL/4glSw1y4zhkRLadK5PpOMllveM4GpYO9T1UUWypOlWWx5zjMPPHskA/ZlEgc:4ldcuklaEPpOMlNB9COMFlD5zjMWZlu
• TLSH: T13E38E1F35097CC9C7A578F03A8BA8668645AD6D836729AB001CC773CC978ABD7B10701
• Submitted as: 8384ab3533e189e37e7be1daa3da74a9587590431c348011a549c6eae93f7a05
• File type: pdf · Size: 83419 bytes
• Verdict: malicious (96/100)

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 96/100 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
• Contacted 14 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: https://tunhuaduytan.com/upload/userfiles/files/23971274503.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://dogomanhnghia.com/uploads/files/87660134796.pdf, http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f84eceda33---nifixorug.pdf, http://fipjp.com/userfiles/file/megezerekunalox.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 (15 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9673 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
• desktop-hsgcbep
• ntp.ubuntu.com
• 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
• 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
• 250.255.255.239.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\480d876061afd04a8580528290415067.png - 2cb9431057a11c40b5b8ef833e6bef0bf631a4b65e7e84b9dfafda01549bc1e3
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 47f29908ff9029f431762032c8376babf7e4125970de91f3cc80a560b8097da0
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=my+body+is+sore+after+workout
• http://dogomanhnghia.com/uploads/files/87660134796.pdf
• http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f84eceda33---nifixorug.pdf
• http://fipjp.com/userfiles/file/megezerekunalox.pdf
• https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613d96c5bb393---tazev.pdf
• http://charolais-hessen.de/write/userfiles/file/pugapupu.pdf
• https://tunhuaduytan.com/upload/userfiles/files/23971274503.pdf
• http://bio86.fr/userfiles/fichiers/samokalefem.pdf
• https://felixtrail.com/imagini_ws/82321738044.pdf
• https://makenie.com/upload/files/vopimomupeto.pdf
• http://bresky.cz/res/file/4848124219.pdf
• http://indianspringhomes.net/userfiles/files/risukojujemesozodunuxes.pdf
• http://lex-ter.ru/admin/ckfinder/userfiles/files/regituvavedamol.pdf
• http://frutapac.es/ckfinder/userfiles/files/sapalegogikofisuzetuximo.pdf
• http://opakowania-loga.pl/zdjecia/fotki/file/gekomagaxupoxegovawerage.pdf
• http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/be98725ce078bb8133b2d3a51766482c/4813327024.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
• http://rb.symcb.com/rb.crl

Embedded domains

• feedproxy.google.com
• dogomanhnghia.com
• www.blackhillsdancecentre.com
• fipjp.com
• www.limratechnologies.net
• charolais-hessen.de
• tunhuaduytan.com
• bio86.fr
• felixtrail.com
• makenie.com
• indianspringhomes.net
• lex-ter.ru
• frutapac.es
• opakowania-loga.pl
• www.w3.org
• purl.org
• ns.adobe.com
• bresky.cz
• ne-moloko.ee

Embedded IP addresses

• 40.84.85.40
• 4.230.171.124
• 20.247.184.142
• 104.208.16.94
• 20.165.94.63
• 52.123.128.14
• 40.99.134.2
• 4.150.223.105
• 20.165.94.46
• 203.26.79.13
• 57.154.63.210
• 20.42.73.25
• 4.209.250.170
• 20.42.65.93

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report