MALICIOUS — jesozefuze.pdf

MALICIOUS — jesozefuze.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (84/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 1390da5f191b5cd293535d881ffda722f135ddb6a0c1ce9869e2857f86101d06
• SHA-1: dcb40eb4b2f3179edc2476109fe8799ab20e70d0
• MD5: 692279a0fb490034a550f8dd800d7f8e
• ssdeep: 768:Y9gGzpDV0V6Exw9S1vrlevi38+EdPYper3+udX4B/BtQ:nGFx0Fw9S1v0aJyPDqudX4B/BtQ
• TLSH: T1C7318DF34097EC8C69CBAF179EE710999189C78D6132C6A048987B7CC4BC7ED5E40A61
• Submitted as: jesozefuze.pdf
• File type: pdf · Size: 43033 bytes
• Verdict: malicious (84/100)

Detections (3 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Trojan.Script.Generic

MITRE ATT&CK

• T1105
• T1566.002

Why this verdict

The malicious score of 84/100 is the fusion of 6 weighted signals:

• Embedded link rated malicious by URL analysis: https://uploads.strikinglycdn.com/files/76edd0d2-4d0e-44d5-b8cd-e7233decf585/gilalajefutuvi.pdf - network signal, weight 0.70, confidence 0.80
• Contacted 20 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded network infrastructure: https://gettraff.ru/strik?keyword=past+simple+regular+verbs+exercises+pdf+perfect+english+grammar, https://site-1036746.mozfiles.com/files/1036746/milanurofijalomopijitedas.pdf, https://site-1037839.mozfiles.com/files/1037839/pabiwejeximuxiwan.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 (18 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9756 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
• 250.255.255.239.in-addr.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
• 252.0.0.224.in-addr.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
• 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
• 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\SumatraPDF-settings.txt - c6e67575f0645841138f7772543ea1f20cced7908943d5bfef9a46d23211bb3d
• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\09c687fd994a2997b932a3510f3fafa2.png - 1d6e7d4d1e6eb36f7cbd9e32f6ff50debcdb6dcaf9c3675a993ac353fe6ffd4c
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://gettraff.ru/strik?keyword=past+simple+regular+verbs+exercises+pdf+perfect+english+grammar
• https://site-1036746.mozfiles.com/files/1036746/milanurofijalomopijitedas.pdf
• https://site-1037839.mozfiles.com/files/1037839/pabiwejeximuxiwan.pdf
• https://site-1036951.mozfiles.com/files/1036951/85106499017.pdf
• https://site-1036675.mozfiles.com/files/1036675/jukojumajosa.pdf
• https://site-1036873.mozfiles.com/files/1036873/wotolekiwupigak.pdf
• https://uploads.strikinglycdn.com/files/76edd0d2-4d0e-44d5-b8cd-e7233decf585/gilalajefutuvi.pdf
• https://uploads.strikinglycdn.com/files/4e42251b-ab3d-4219-aced-90bc47ddd1aa/dabigedizu.pdf
• https://uploads.strikinglycdn.com/files/26bb4bc4-e913-423b-8bbb-7af368eaa367/24991884668.pdf
• https://uploads.strikinglycdn.com/files/5bf14924-3918-4f1b-a089-5221669abce3/peketafe.pdf
• https://site-1036733.mozfiles.com/files/1036733/84403106810.pdf
• https://site-1036692.mozfiles.com/files/1036692/57499535761.pdf
• https://site-1036651.mozfiles.com/files/1036651/90568238574.pdf
• http://navonu.matthewjosephtinkler.com/uploads/1/3/2/6/132682694/duliwojonopipor-zurojuleziw.pdf
• http://fixokofa.wesmillermusiclessons.com/uploads/1/3/0/7/130775209/7047551.pdf
• http://files.trevorbalthrop.com/uploads/1/3/2/7/132710563/77d35bdb0.pdf
• http://bumuto.enotecaathena.com/uploads/1/3/1/3/131381130/xefop.pdf
• http://files.cejdentalaccountants.co.uk/uploads/1/3/1/4/131437350/letigikatoxewo.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

Embedded domains

• gettraff.ru
• site-1036746.mozfiles.com
• site-1037839.mozfiles.com
• site-1036951.mozfiles.com
• site-1036675.mozfiles.com
• site-1036873.mozfiles.com
• uploads.strikinglycdn.com
• site-1036733.mozfiles.com
• site-1036692.mozfiles.com
• site-1036651.mozfiles.com
• navonu.matthewjosephtinkler.com
• fixokofa.wesmillermusiclessons.com
• files.trevorbalthrop.com
• bumuto.enotecaathena.com
• files.cejdentalaccountants.co.uk
• www.w3.org
• purl.org
• ns.adobe.com

Embedded IP addresses

• 52.148.114.188
• 172.172.255.218
• 20.42.65.88
• 52.253.84.76
• 52.110.12.56
• 172.215.188.232
• 72.145.35.106
• 4.230.171.124
• 203.26.79.13
• 52.168.117.168
• 74.179.77.204
• 52.123.128.14
• 135.233.45.221
• 20.184.175.10
• 92.223.78.30
• 135.232.92.34
• 135.233.45.222
• 48.192.143.121
• 20.184.175.15
• 4.150.223.96

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report