Analysis
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max time kernel
139s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
30-04-2021 12:01
Static task
static1
Behavioral task
behavioral1
Sample
RFQ #ER428-BD.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
RFQ #ER428-BD.exe
Resource
win10v20210410
General
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Target
RFQ #ER428-BD.exe
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Size
158KB
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MD5
6ce9ef88f1577c4810e30ddc2c9ea5cc
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SHA1
132d9bd87673ff394423d59c912dc726f2e28511
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SHA256
6e4da46962c65c24ebe731eba3468420a3a0a28cdc923e82396f1b8cedd05da1
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SHA512
07572e51ead0a25155b89fbce5d9efd9449d923adce5b8f71e209a1425790952668bf55acf8b71f94f8f85b5fadb558217b4d2c031a8e7f6715b2fc7b485ad9e
Malware Config
Extracted
azorult
http://31.210.21.203/3.4/index.php
Signatures
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Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
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Loads dropped DLL 5 IoCs
Processes:
RFQ #ER428-BD.exeMSBuild.exepid process 4024 RFQ #ER428-BD.exe 1280 MSBuild.exe 1280 MSBuild.exe 1280 MSBuild.exe 1280 MSBuild.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
RFQ #ER428-BD.exedescription pid process target process PID 4024 set thread context of 1280 4024 RFQ #ER428-BD.exe MSBuild.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MSBuild.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MSBuild.exepid process 1280 MSBuild.exe 1280 MSBuild.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
RFQ #ER428-BD.exepid process 4024 RFQ #ER428-BD.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
RFQ #ER428-BD.exedescription pid process target process PID 4024 wrote to memory of 1280 4024 RFQ #ER428-BD.exe MSBuild.exe PID 4024 wrote to memory of 1280 4024 RFQ #ER428-BD.exe MSBuild.exe PID 4024 wrote to memory of 1280 4024 RFQ #ER428-BD.exe MSBuild.exe PID 4024 wrote to memory of 1280 4024 RFQ #ER428-BD.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ #ER428-BD.exe"C:\Users\Admin\AppData\Local\Temp\RFQ #ER428-BD.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4024 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Users\Admin\AppData\Local\Temp\RFQ #ER428-BD.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1280
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\8093A008\mozglue.dllMD5
9e682f1eb98a9d41468fc3e50f907635
SHA185e0ceca36f657ddf6547aa0744f0855a27527ee
SHA256830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d
SHA512230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed
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\Users\Admin\AppData\Local\Temp\8093A008\msvcp140.dllMD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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\Users\Admin\AppData\Local\Temp\8093A008\nss3.dllMD5
556ea09421a0f74d31c4c0a89a70dc23
SHA1f739ba9b548ee64b13eb434a3130406d23f836e3
SHA256f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb
SHA5122481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2
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\Users\Admin\AppData\Local\Temp\8093A008\vcruntime140.dllMD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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\Users\Admin\AppData\Local\Temp\nsk632.tmp\o4s2f1v.dllMD5
f5291195ee5047d218d5f5e531ecc918
SHA167b370015a071eb8e547b24f80afa507eda3e3ca
SHA256e40e31082d0c7d1e0b286ad6e3c8fec7b0a36aba7ff85d7744d8286bc58da5e8
SHA512d6b9cccf171497d49eca8e7edc5b4ea08c5010b77b425b6c4fb9a05b50c5b6ceca4589b79cfbd18d6166d4ba4c36f7d9984770384651f94a62a1f60ad713aa44
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memory/1280-115-0x000000000041A684-mapping.dmp
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memory/1280-117-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4024-116-0x0000000002FD0000-0x0000000002FD2000-memory.dmpFilesize
8KB