MALICIOUS — 81680303431.pdf

MALICIOUS — 81680303431.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (86/100). 3 of 52 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: b27de4a690c12a62af52fd7824d38d49e42686439567fa3acf52af86352648aa
• SHA-1: 3871d025f7f02c37281cf470e4114b0ae31650df
• MD5: e0970fe8ba152bca11d2aaf430bfb5d2
• ssdeep: 768:ugGzpDX5LpNsVfyxx91D7rYMkadxKVDopwmfGQOKqm9MAOXwOu1Zd:LGFT5J9V7NXdOQOKOXX1u1Zd
• TLSH: T14F329DF310A7ED8C76879B13ADA6256A4086CB4C7173D761188CBB7DC4BC2BCAE10560
• Submitted as: 81680303431.pdf
• File type: pdf · Size: 46755 bytes
• Verdict: malicious (86/100)

Detections (3 of 52 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 86/100 is the fusion of 7 weighted signals:

• Memory forensics: 3 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 6196) (rule windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85
• Contacted 20 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/bedaf280-5755-4d49-96b7-e30f0beb7903/rovepag.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: https://ggtraff.ru/strik?keyword=coordinate+system+pdf, https://cdn.shopify.com/s/files/1/0437/9105/7058/files/effective_business_communication_murphy.pdf, https://cdn.shopify.com/s/files/1/0432/5795/4464/files/94728780137.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 (14 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9778 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
• 255.255.254.169.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
• 252.0.0.224.in-addr.arpa
• 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
• 79.243.254.169.in-addr.arpa
• 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
• desktop-hsgcbep
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - e401846311fc8af2278558f4b8aea74e47177d43ec0517e808ea55fcba65184f
• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\ae8190dbc31443a87bec85bdea028073.png - db4c048a3a373ea713281a07056e3fb96e058546b1e2430c18a7f4556202272b
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://ggtraff.ru/strik?keyword=coordinate+system+pdf
• https://cdn.shopify.com/s/files/1/0437/9105/7058/files/effective_business_communication_murphy.pdf
• https://cdn.shopify.com/s/files/1/0432/5795/4464/files/94728780137.pdf
• https://cdn.shopify.com/s/files/1/0437/6707/0877/files/bissell_proheat_2x_revolution_manual.pdf
• https://cdn.shopify.com/s/files/1/0431/2953/6676/files/fesatarazaje.pdf
• http://vipokide.bobcooperhomeinspections.com/uploads/1/3/0/8/130814416/bamogozi.pdf
• http://luxakasap.thevineidaho.org/uploads/1/3/1/4/131437361/totajojafawez-widegasamo-xubatejiwix.pdf
• http://sofedegub.shannondellmodelrailroad.org/uploads/1/3/1/4/131406710/8ab46dbe0f4.pdf
• http://binidixaz.your-us.com/uploads/1/3/1/4/131407406/1883333.pdf
• http://lebubuk.tcsavet.com/uploads/1/3/2/6/132681361/afdeed6f037ccb1.pdf
• https://uploads.strikinglycdn.com/files/bedaf280-5755-4d49-96b7-e30f0beb7903/rovepag.pdf
• https://uploads.strikinglycdn.com/files/82d38b9a-2c1a-4cbf-874e-f126436a3cce/kokuvivagaxozu.pdf
• https://uploads.strikinglycdn.com/files/4aab2421-193e-4794-81db-6f89622d1c89/66135647711.pdf
• http://robudekev.honkerflats.com/uploads/1/3/2/6/132683071/figupikejum_gureniw_fapele.pdf
• http://files.accesseuropetour.com/uploads/1/3/1/0/131070152/f84feb6a33ed.pdf
• http://sodil.dragonarkh.com/uploads/1/3/1/4/131437046/64bc0c2be50.pdf
• http://files.estellessweetitchblankets.com/uploads/1/3/0/8/130874424/medijokawigi.pdf
• http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.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

• ggtraff.ru
• cdn.shopify.com
• vipokide.bobcooperhomeinspections.com
• luxakasap.thevineidaho.org
• sofedegub.shannondellmodelrailroad.org
• binidixaz.your-us.com
• lebubuk.tcsavet.com
• uploads.strikinglycdn.com
• robudekev.honkerflats.com
• files.accesseuropetour.com
• sodil.dragonarkh.com
• files.estellessweetitchblankets.com
• files.reikifortheplanet.com
• www.w3.org
• purl.org
• ns.adobe.com

Embedded IP addresses

• 51.116.253.168
• 135.233.95.144
• 52.230.59.222
• 52.110.12.24
• 85.210.193.152
• 4.230.171.124
• 74.179.77.204
• 51.104.15.253
• 20.236.44.162
• 52.123.129.14
• 40.99.133.226
• 20.165.94.46
• 203.26.79.13
• 20.184.175.2
• 20.42.65.90
• 85.210.196.11
• 20.42.65.88
• 20.42.65.84
• 51.105.71.137
• 52.148.114.188

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report