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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
24/01/2024, 23:32
General
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Target
73267c2a412170b3f3df33616b1e1e8e.exe
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Size
691KB
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MD5
73267c2a412170b3f3df33616b1e1e8e
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SHA1
bcc8e0537ea776cf75ea83aec75130fc5ba36b43
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SHA256
4756e7ee03184fc1b29807d6e77c4bb85d0eaaadd064c67b0b4b3a90175229a3
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SHA512
3354d9f68f4e4ba5a1d88d9d1c9e8cb8f2067f7a03bf1b60d7658b9a036d642f64d35a98ae13115795e2078dff1fbf94dfed4e71c5134b6f24600366d7d6e13e
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SSDEEP
12288:4KmX4064w0jAQrjnY8/V1Ng6U+VAqEr4viIrvLZo4P84ldlBGPMmLbAEWBvB7:4KCR3Pzg6U+Qk97G4P84dX0Mmv5WVB
Malware Config
Signatures
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44Caliber
An open source infostealer written in C#.
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Modifies Windows Firewall 1 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
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Drops startup file 2 IoCs
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Executes dropped EXE 3 IoCs
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 2 IoCs
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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.
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Drops file in Windows directory 3 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies registry class 1 IoCs
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Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 34 IoCs
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Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\73267c2a412170b3f3df33616b1e1e8e.exe"C:\Users\Admin\AppData\Local\Temp\73267c2a412170b3f3df33616b1e1e8e.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Insidious.exe"C:\Users\Admin\AppData\Local\Temp\Insidious.exe"2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\Windows\RuntimeBroker.exe"C:\Windows\RuntimeBroker.exe"3⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\RuntimeBroker.exe" "RuntimeBroker.exe" ENABLE4⤵
- Modifies Windows Firewall
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 100 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\73267c2a412170b3f3df33616b1e1e8e.exe"& ping 1.1.1.1 -n 1 -w 900 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\73267c2a412170b3f3df33616b1e1e8e.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 1003⤵
- Runs ping.exe
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C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 9003⤵
- Runs ping.exe
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
373B
MD5680cb4a5a27740ef637006eec86150c1
SHA122e00bf9774ef887d3b3ee57ab56b30d011406ff
SHA256c5a1f905f951583f5c13d6e4363f03d571fc8b456567b706ebd281d467fc7922
SHA512b73f04432dfb56e1ab8bbf78928645a4c0227739f8fad6ba5b9324b6cccf185a5fa7a3a8b795bf1a7cea4fcb9394c2a6ac7e5bfd0d0982cbf94d5adf1dcd7f4f
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Filesize
1KB
MD567b417b7f82a75032211f4fd59d90e6a
SHA17c7a75e679d93f43ea02e7bce65c2fac18de092b
SHA256cb5a8a1f6f5fab261c015030c09fcd2e7d408e4a0da7121fc35c732eb0d29f5a
SHA51272a8a2dce82878a6dda3a1bcd09dd979d7cad86b5d3db9b7e6a145f412f170cebd19c43747911d64c2762101004e75cfbf1e590a162fec868b766e07c7462e6b
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Filesize
1KB
MD5474a67c571028ee2f0cf92d2f5452a76
SHA166b445641e5a5368b42a3f4e6ba1dcc862b4da7d
SHA256be4e6b60295fe717492cea2e23cd77610a8d46b50cc0d3cb9800f2a6d784f3f8
SHA51278c74af99f726f77efaf97d25b57dd24c6a9e3e5d3a3dfd499126722d9441cc7410f46fd1c958ab97b1e409f229c4a42cba2208e5cd59fc3a71ea0950363edfc
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Filesize
319B
MD5da4fafeffe21b7cb3a8c170ca7911976
SHA150ef77e2451ab60f93f4db88325b897d215be5ad
SHA2567341a4a13e81cbb5b7f39ec47bb45f84836b08b8d8e3ea231d2c7dad982094f7
SHA5120bc24b69460f31a0ebc0628b99908d818ee85feb7e4b663271d9375b30cced0cd55a0bbf8edff1281a4c886ddf4476ffc989c283069cdcb1235ffcb265580fc6
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Filesize
328KB
MD5f6639aa0f7e43cf09431850b3f473238
SHA13c7740ceacf062f8d71095bb440e280fdd3372ec
SHA256870859b15395ba5c50bffd2e90b230d4ebc890c9ba8f674f87862b22254ec25e
SHA5121e3fb39565e8d8f7c20e750735d79b06a97d49dbdae541f0e8e4fc97cff190d12e6bca77cef7d0018fe23f8c656d024766a05655ad6d18cdadaee2ded2b75d94
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Filesize
260KB
MD51acabd72a026449937fc1cd16d0b5423
SHA1809ea7e21d0e3d80a6445c245daa2e018a417126
SHA25681634c88831adcb3e44d92ecd2e2a4534b50cf2d7bf001a02d68faa5d9a92bc2
SHA51240fcccd3b7aac5c5ff1bbfb2e491c4f8106e44f6e5c373b590ef2474469c8c25f44725c7d6310a242be7bec9aede4e02fa5196358d45ee620e4228866cbebb1d
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Filesize
64KB
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Filesize
10.8MB
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Filesize
624KB
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Filesize
720KB
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Filesize
10.8MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
10.8MB
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Filesize
352KB
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Filesize
440KB
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Filesize
10.8MB
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Filesize
64KB