MALICIOUS — 94967377146.pdf

MALICIOUS — 94967377146.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (86/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 6d1853b4af5ccc70df1cc47ca6a82eee4b89398d057b29a45963bc4dbd232437
• SHA-1: ef5242e8ec0af50c8221578770cabf980acfbf92
• MD5: 01e5b6b67a218852f128ce16cd140cc4
• ssdeep: 768:6gGzpDrCrHQI/OTdWqYh0VClvO/XfyC7d0azn3/W5KHOssZ9ElUA:nGFHO4BRCdO/KC7dtr3/Wm5uElUA
• TLSH: T1AF319DF39057ED4C7A8BAB03ADDA1589518ED3C8313296615899377CD07CAFCAF00622
• Submitted as: 94967377146.pdf
• File type: pdf · Size: 43024 bytes
• Verdict: malicious (86/100)

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 86/100 is the fusion of 7 weighted signals:

• Memory forensics: 3 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 7188) (rule windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85
• Contacted 14 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: http://files.lushandstyles.com/uploads/1/3/0/7/130738921/vezuwivax.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: https://cctraff.ru/strik?keyword=imaginary+and+complex+numbers+worksheet, https://site-1037018.mozfiles.com/files/1037018/73705899825.pdf, https://site-1036626.mozfiles.com/files/1036626/69485540760.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 (12 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9644 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
• 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
• 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
• 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
• desktop-hsgcbep
• 250.255.255.239.in-addr.arpa
• 255.255.254.169.in-addr.arpa
• 251.0.0.224.in-addr.arpa
• ntp.ubuntu.com
• http://www.msftconnecttest.com/connecttest.txt

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\96984f52514f439a21109f20203ed18c.png - 052a7172a8bbe3698752118b654b0ee5fd7257c63c86da28d211015be00fea12
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - e44790f8a7b6372a6762fe86407c209421258876c705276887ed1bef68b66073
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://cctraff.ru/strik?keyword=imaginary+and+complex+numbers+worksheet
• https://site-1037018.mozfiles.com/files/1037018/73705899825.pdf
• https://site-1036626.mozfiles.com/files/1036626/69485540760.pdf
• https://site-1043887.mozfiles.com/files/1043887/mapek.pdf
• https://site-1039919.mozfiles.com/files/1039919/fajudakofelojegagirutebin.pdf
• https://site-1040284.mozfiles.com/files/1040284/35981159400.pdf
• https://cdn.shopify.com/s/files/1/0437/1139/8039/files/sepia_in_photoshop_elements.pdf
• https://cdn.shopify.com/s/files/1/0433/0763/0747/files/41206464046.pdf
• https://cdn.shopify.com/s/files/1/0500/1003/0238/files/gafikobib.pdf
• http://files.flalaw.pro/uploads/1/3/0/7/130740186/3012811.pdf
• http://files.tworiversreserve.org/uploads/1/3/1/4/131436997/jizedisijatiwuk.pdf
• http://files.lushandstyles.com/uploads/1/3/0/7/130738921/vezuwivax.pdf
• https://site-1037887.mozfiles.com/files/1037887/41196096015.pdf
• https://site-1036950.mozfiles.com/files/1036950/firuxawelezufiw.pdf
• https://site-1036833.mozfiles.com/files/1036833/famulasa.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

• cctraff.ru
• site-1037018.mozfiles.com
• site-1036626.mozfiles.com
• site-1043887.mozfiles.com
• site-1039919.mozfiles.com
• site-1040284.mozfiles.com
• cdn.shopify.com
• files.flalaw.pro
• files.tworiversreserve.org
• files.lushandstyles.com
• site-1037887.mozfiles.com
• site-1036950.mozfiles.com
• site-1036833.mozfiles.com
• www.w3.org
• purl.org
• ns.adobe.com

Embedded IP addresses

• 52.123.252.222
• 85.210.196.11
• 52.110.12.3
• 4.230.171.124
• 20.247.184.197
• 57.155.101.212
• 74.178.240.51
• 52.123.129.14
• 13.89.179.15
• 135.234.160.244
• 72.145.35.109
• 203.26.79.13
• 4.150.223.113
• 52.148.114.188

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report