Analysis
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max time kernel
92s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 15:20
Static task
static1
Behavioral task
behavioral1
Sample
DHL Shipping Documents.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
DHL Shipping Documents.exe
Resource
win10v2004-20220414-en
General
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Target
DHL Shipping Documents.exe
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Size
2.0MB
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MD5
8c2ae0a1d14cda74ddc4309b46fee9a3
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SHA1
81443874dc7ac6cb16786f2c8779d823e13986dc
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SHA256
d8f4223d57a495c09741feb21a5e2ec082321d38a77e54a4d2b4b147d8e6bc23
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SHA512
1ed42929392bce8c943c62e36f9a84eea9d1a55d1540cf0e56991a864347456507f4df8a011f577255695938f0ac446b968ab8add499581ade7e724e185eb398
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\EEB932C954\Log.txt
masslogger
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload 60 IoCs
Processes:
resource yara_rule behavioral2/memory/1564-136-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-141-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-142-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-143-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-144-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-145-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-146-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-147-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-148-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-149-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-150-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-151-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-153-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-152-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-155-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-156-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-154-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-157-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-158-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-159-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-160-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-161-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-162-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-164-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-163-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-165-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-167-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-168-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-169-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-166-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-170-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-171-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-172-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-173-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-174-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-175-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-176-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-177-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-178-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-179-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-180-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-181-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-182-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-183-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-184-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-185-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-186-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-187-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-188-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-189-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-190-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-191-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-192-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-193-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-194-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-195-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-196-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-197-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-199-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger behavioral2/memory/1564-198-0x0000000000620000-0x00000000006D0000-memory.dmp family_masslogger -
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
Processes:
yara_rule masslogger_log_file -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 28 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
DHL Shipping Documents.exedescription pid process target process PID 2728 set thread context of 1564 2728 DHL Shipping Documents.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
MSBuild.exepid process 1564 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 1564 MSBuild.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
Processes:
DHL Shipping Documents.exepid process 2728 DHL Shipping Documents.exe 2728 DHL Shipping Documents.exe 2728 DHL Shipping Documents.exe 2728 DHL Shipping Documents.exe -
Suspicious use of SendNotifyMessage 4 IoCs
Processes:
DHL Shipping Documents.exepid process 2728 DHL Shipping Documents.exe 2728 DHL Shipping Documents.exe 2728 DHL Shipping Documents.exe 2728 DHL Shipping Documents.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
DHL Shipping Documents.exedescription pid process target process PID 2728 wrote to memory of 1564 2728 DHL Shipping Documents.exe MSBuild.exe PID 2728 wrote to memory of 1564 2728 DHL Shipping Documents.exe MSBuild.exe PID 2728 wrote to memory of 1564 2728 DHL Shipping Documents.exe MSBuild.exe PID 2728 wrote to memory of 1564 2728 DHL Shipping Documents.exe MSBuild.exe PID 2728 wrote to memory of 1564 2728 DHL Shipping Documents.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\DHL Shipping Documents.exe"C:\Users\Admin\AppData\Local\Temp\DHL Shipping Documents.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2728 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1564