MALICIOUS — 52fa7a70e0d6bdce9bc7b1b3f92d09a813e0f883898b28a3fe9519a4b64c1c83

MALICIOUS — 52fa7a70e0d6bdce9bc7b1b3f92d09a813e0f883898b28a3fe9519a4b64c1c83 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Egairtigado family. 7 of 56 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

• SHA-256: 52fa7a70e0d6bdce9bc7b1b3f92d09a813e0f883898b28a3fe9519a4b64c1c83
• SHA-1: b8761bab02adca74d34a79d9c9b5c29ece72a642
• MD5: 4b1e72cbd5ce3bf2bbbf0636d50b3360
• imphash: 824c6c6d0ce07d7a82868ee41c437753
• ssdeep: 6144:/vZ7z+MBoa1+Mzmr/N2J13ZUotWYZu1R2MVwdqggX5acFH:/vZ7zBoa1+KmrldotWYg5ZgtE
• TLSH: T14B498D9D42173261E6B7DA946C549CDC9833F0DD307EA95E0A83C86E31E2A3FD8B1158
• Submitted as: 52fa7a70e0d6bdce9bc7b1b3f92d09a813e0f883898b28a3fe9519a4b64c1c83
• File type: pe · Size: 389632 bytes
• Verdict: malicious (99/100) · Family: Egairtigado

Detections (7 of 56 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• capa (capabilities): capability:credential-access
• YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Microsoft Defender: Trojan:Win32/Egairtigado!rfn
• Emsisoft (Emergency Kit): Gen:Variant.Zusy.406898
• Kaspersky (KVRT): UDS:Trojan.Win32.Xxmm.gen

MITRE ATT&CK

• T1055
• T1555
• T1003
• T1057

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 99/100 is the fusion of 13 weighted signals:

• Process injection API combination (rule Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90
• Microsoft Defender flagged Trojan:Win32/Egairtigado!rfn (rule Trojan:Win32/Egairtigado!rfn) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Variant.Zusy.406898 (rule Gen:Variant.Zusy.406898) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged UDS:Trojan.Win32.Xxmm.gen (rule UDS:Trojan.Win32.Xxmm.gen) - engine signal, weight 0.55, confidence 0.85
• access stored credentials (rule access stored credentials) - capa signal, weight 0.50, confidence 0.80
• Contacted 4 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• YARA: MalwareAnalyser built-in flagged Windows_Injection_Api_Combo (rule Windows_Injection_Api_Combo) - engine signal, weight 0.35, confidence 0.70
• capa (capabilities) flagged capability:credential-access (rule capability:credential-access) - engine signal, weight 0.35, confidence 0.70
• YARA: MalwareAnalyser community pack flagged TL_Shellcode_VirtualAlloc_Exec (rule TL_Shellcode_VirtualAlloc_Exec) - engine signal, weight 0.30, confidence 0.70
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
• inject code into another process (rule inject code into another process) - capa signal, weight 0.12, confidence 0.60
• Memory forensics: 5 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in SppExtComObj.E (pid 5768) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

18 behavior events · 0 ATT&CK techniques · 0 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• ctldl.windowsupdate.com
• update.googleapis.com
• desktop-hsgcbep
• login.live.com
• v20.events.data.microsoft.com
• licensing.mp.microsoft.com
• config.edge.skype.com
• windows.msn.com
• www.msn.com
• officeclient.microsoft.com
• odc.officeapps.live.com
• assets.msn.com
• www.bing.com
• watson.events.data.microsoft.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D

Embedded URLs

• http://schemas.microsoft.com/SMI/2005/WindowsSettings
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• schemas.microsoft.com

Embedded IP addresses

• 104.46.162.230
• 20.247.184.197
• 52.123.252.219
• 4.230.171.124
• 135.234.160.244
• 52.110.12.51

File paths

• C:\Users\Katy\Desktop\project\hyphernate_proc_exe\Typical
• R:\:b:m:
• T:\:d:l:t:
• C:\Windows\Installer\
• C:\Windows\
• C:\Windows\Microsoft.NET\
• C:\ProgramData\Microsoft\Assistance\Client\
• C:\Users\Public\Videos\5C41W68RACCZZ.msi

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report