SUSPICIOUS — niluxikebofizas.pdf

SUSPICIOUS — niluxikebofizas.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (68/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: e20bb936caa392867f0c0b20a56513923028b934c11fb9bd5ee304ddb1cb0b40
• SHA-1: 6bc7e6ca63eb03ea778b5331dc8a4f8319aedaf8
• MD5: 563ee3840ba4821d360480acd5b4506f
• ssdeep: 768:9gGzpDaYxb+ojRQ+Ck0jxgpfuQL6N1MlBR1fj8HtJolHgRiLb0uW+6RriNN2+yG7:+GF2edQypfuh1HtJwgELwuWjR8BldP5
• TLSH: T18335AFF351ABDD8C36CFAF17EA6A11586406D6C82072ABA0048D7B3CC47C6FCAE11651
• Submitted as: niluxikebofizas.pdf
• File type: pdf · Size: 57662 bytes
• Verdict: suspicious (68/100)

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

• T1112
• T1105

Why this verdict

The suspicious score of 68/100 is the fusion of 6 weighted signals:

• Contacted 23 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded network infrastructure: https://gettraff.ru/strik?keyword=ashraful+insha+1+pdf+download, http://tisoreli.noidurham.org/uploads/1/3/0/8/130814328/feb85a1c14.pdf, http://files.jimgerhardlearning.com/uploads/1/3/2/7/132741272/5778997.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
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Extracted generic config (15 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9551 behavior events · 1 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
• 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
• 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
• 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
• 255.255.254.169.in-addr.arpa
• 79.243.254.169.in-addr.arpa
• 250.255.255.239.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\654f3b5c68c8ce48c99d78db5f69b7d8.png - cae83891264c4a79c06b17342189132fc48586a99476bde2887bd77b848b6363
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 8547911823d1d23f154cd6a8ed8a6bd92f9e7da9c477c8c32ddc6d29b32c709f
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://gettraff.ru/strik?keyword=ashraful+insha+1+pdf+download
• http://tisoreli.noidurham.org/uploads/1/3/0/8/130814328/feb85a1c14.pdf
• http://files.jimgerhardlearning.com/uploads/1/3/2/7/132741272/5778997.pdf
• http://files.abatelakechapter.com/uploads/1/3/0/8/130814591/9051416.pdf
• https://uploads.strikinglycdn.com/files/e2f14a66-c2b8-46c1-a29b-559ad891fc2b/gejosozujur.pdf
• https://uploads.strikinglycdn.com/files/ce108809-bc8e-4596-82d0-57ebf2db8f92/rulimuberiji.pdf
• https://uploads.strikinglycdn.com/files/303395c6-ad1f-46d4-b373-1496a7b51360/fugonozofexalubadetepijof.pdf
• http://fofubuf.breaksticks.pitbullhill.com/uploads/1/3/1/6/131606212/444dddafc0.pdf
• http://gezoza.myteslawraps.com/uploads/1/3/0/8/130874104/tedazepukiwivajiw.pdf
• http://jekili.mosaicolearning.com/uploads/1/3/1/3/131383314/tafebovob.pdf
• https://uploads.strikinglycdn.com/files/0174bda8-6844-4b34-91f5-e62b9d5b5391/nexulalifavuluwoxawebu.pdf
• https://uploads.strikinglycdn.com/files/ff6f26f4-89da-44e4-a1fb-046e61453e28/xapapegiruzuwofo.pdf
• https://uploads.strikinglycdn.com/files/2c374089-8bd8-4ad6-960b-735fcccb1cb1/regupugepu.pdf
• https://uploads.strikinglycdn.com/files/91bd73db-b023-4df4-b1c9-2ac8abd2a51a/zasuxopetisasene.pdf
• https://uploads.strikinglycdn.com/files/5c40b70e-952b-43cd-bb24-02970c9554eb/49198949647.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
• http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com

Embedded domains

• gettraff.ru
• tisoreli.noidurham.org
• files.jimgerhardlearning.com
• files.abatelakechapter.com
• uploads.strikinglycdn.com
• fofubuf.breaksticks.pitbullhill.com
• gezoza.myteslawraps.com
• jekili.mosaicolearning.com
• www.w3.org
• purl.org
• ns.adobe.com

Embedded IP addresses

• 20.165.94.46
• 52.123.252.245
• 52.168.112.66
• 74.178.240.61
• 20.184.175.14
• 172.172.255.217
• 20.42.65.89
• 4.230.171.124
• 52.110.12.22
• 135.234.160.244
• 135.232.92.137
• 40.99.133.242
• 72.145.35.96
• 172.66.2.5
• 74.178.240.51
• 4.150.223.114
• 52.123.128.14
• 20.165.94.63
• 203.26.79.13
• 4.150.223.111
• 52.123.252.242
• 52.123.252.239
• 162.159.36.2

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report