Analysis
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max time kernel
150s -
max time network
135s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
11-01-2021 13:25
Static task
static1
Behavioral task
behavioral1
Sample
translator.exe
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
translator.exe
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Size
3.5MB
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MD5
a7cf97de0e85e78c2e9a78c8c1ffcc8d
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SHA1
ec1eb927bfdb0d2696941ee1b4d9f310eabd18e2
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SHA256
8351d952377c34ffbbf065f39567dbaf3907af610b5ef77831bcabf154795188
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SHA512
c585bacd64ac61019652de6958750e5688d70f52e2635b0e426490a1b189d2d0c21ab4356b675b0589fbe3228c3d1491bc3733b79589a3244c5fa4c900955339
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 568 puiapi.module.exe -
resource yara_rule behavioral1/files/0x000e00000000560a-3.dat upx behavioral1/files/0x000e00000000560a-4.dat upx behavioral1/files/0x000e00000000560a-7.dat upx behavioral1/files/0x000e00000000560a-8.dat upx behavioral1/files/0x000e00000000560a-9.dat upx behavioral1/files/0x0004000000013102-14.dat upx behavioral1/files/0x0004000000013102-16.dat upx behavioral1/files/0x0004000000013102-13.dat upx -
Loads dropped DLL 6 IoCs
pid Process 1948 puiapi.exe 1948 puiapi.exe 1548 puiapi.exe 1548 puiapi.exe 1548 puiapi.exe 1548 puiapi.exe -
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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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.
flow ioc 5 ipapi.co 6 ipapi.co -
Drops file in System32 directory 3 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\winmgmts:\localhost\ puiapi.exe File opened for modification C:\Windows\SysWOW64\winmgmts:\localhost\ puiapi.exe File opened for modification C:\Windows\SysWOW64\winmgmts:\localhost\ puiapi.exe -
NTFS ADS 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\winmgmts:\localhost\ translator.exe File opened for modification C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\winmgmts:\localhost\ puiapi.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1548 puiapi.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1616 translator.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeRestorePrivilege 568 puiapi.module.exe Token: 35 568 puiapi.module.exe Token: SeSecurityPrivilege 568 puiapi.module.exe Token: SeSecurityPrivilege 568 puiapi.module.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1616 wrote to memory of 1948 1616 translator.exe 29 PID 1616 wrote to memory of 1948 1616 translator.exe 29 PID 1616 wrote to memory of 1948 1616 translator.exe 29 PID 1616 wrote to memory of 1948 1616 translator.exe 29 PID 1644 wrote to memory of 1548 1644 taskeng.exe 31 PID 1644 wrote to memory of 1548 1644 taskeng.exe 31 PID 1644 wrote to memory of 1548 1644 taskeng.exe 31 PID 1644 wrote to memory of 1548 1644 taskeng.exe 31 PID 1644 wrote to memory of 1752 1644 taskeng.exe 33 PID 1644 wrote to memory of 1752 1644 taskeng.exe 33 PID 1644 wrote to memory of 1752 1644 taskeng.exe 33 PID 1644 wrote to memory of 1752 1644 taskeng.exe 33 PID 1548 wrote to memory of 568 1548 puiapi.exe 36 PID 1548 wrote to memory of 568 1548 puiapi.exe 36 PID 1548 wrote to memory of 568 1548 puiapi.exe 36 PID 1548 wrote to memory of 568 1548 puiapi.exe 36 PID 1548 wrote to memory of 1776 1548 puiapi.exe 38 PID 1548 wrote to memory of 1776 1548 puiapi.exe 38 PID 1548 wrote to memory of 1776 1548 puiapi.exe 38 PID 1548 wrote to memory of 1776 1548 puiapi.exe 38 PID 1548 wrote to memory of 612 1548 puiapi.exe 39 PID 1548 wrote to memory of 612 1548 puiapi.exe 39 PID 1548 wrote to memory of 612 1548 puiapi.exe 39 PID 1548 wrote to memory of 612 1548 puiapi.exe 39 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 612 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\translator.exe"C:\Users\Admin\AppData\Local\Temp\translator.exe"1⤵
- NTFS ADS
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1616 -
C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exeC:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exe2⤵
- Loads dropped DLL
- NTFS ADS
PID:1948
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C:\Windows\system32\taskeng.exetaskeng.exe {DD5E750E-E72A-4E18-B81A-A74D64585B15} S-1-5-21-293278959-2699126792-324916226-1000:TUICJFPF\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exeC:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exe2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1548 -
C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.module.exeC:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.module.exe a -y -mx9 -ssw "C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\ENU_687FE97606A3954E9D41.7z" "C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\ABC\*"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:568
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C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exeC:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exe3⤵
- Drops file in System32 directory
PID:1776
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C:\Windows\SysWOW64\attrib.exeattrib +s +h "C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic"3⤵
- Views/modifies file attributes
PID:612
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C:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exeC:\Users\Admin\AppData\Roaming\amd64_microsoft-windows-videodiagnostic\puiapi.exe2⤵
- Drops file in System32 directory
PID:1752
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