Analysis
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max time kernel
126s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
22-04-2024 07:05
Static task
static1
Behavioral task
behavioral1
Sample
421c40695b1537b040830d13b7b860d8.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
421c40695b1537b040830d13b7b860d8.exe
Resource
win10v2004-20240412-en
General
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Target
421c40695b1537b040830d13b7b860d8.exe
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Size
89KB
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MD5
421c40695b1537b040830d13b7b860d8
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SHA1
a63377c184c808116f7c192cd7c5f4dd763a77d3
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SHA256
a48ed05b6c117fd2ecf7c9bbf17ae3253e6aab133cdd4a06da54298635a136a5
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SHA512
27564661871e700fea1ef7e2d28e739e32a0c580323fbb42c5139a64b68afffae7ac9445eb7d304502b22bacb64c611a05392a19a59a4b30ddd4bad1aa59e2f0
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SSDEEP
1536:Uf4b9BKhaUxo6TRMinLvIbzV6A2SYzEdV4c7Raeiq:Uf4b9IJxZTLnL4aSY4dVD3D
Malware Config
Extracted
phemedrone
http://77.221.151.42/dashboard/gate.php
Signatures
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Phemedrone
An information and wallet stealer written in C#.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Downloads MZ/PE file
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 54 ipinfo.io 55 ipinfo.io -
Suspicious use of SetThreadContext 1 IoCs
Processes:
421c40695b1537b040830d13b7b860d8.exedescription pid process target process PID 2424 set thread context of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
RegAsm.exedescription ioc process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 26 IoCs
Processes:
RegAsm.exepid process 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe 3460 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
421c40695b1537b040830d13b7b860d8.exeRegAsm.exesvchost.exedescription pid process Token: SeDebugPrivilege 2424 421c40695b1537b040830d13b7b860d8.exe Token: SeDebugPrivilege 3460 RegAsm.exe Token: SeManageVolumePrivilege 3112 svchost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
421c40695b1537b040830d13b7b860d8.exedescription pid process target process PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe PID 2424 wrote to memory of 3460 2424 421c40695b1537b040830d13b7b860d8.exe RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\421c40695b1537b040830d13b7b860d8.exe"C:\Users\Admin\AppData\Local\Temp\421c40695b1537b040830d13b7b860d8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2424 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3460
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:376
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:2856
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3112