Analysis
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max time kernel
43s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20220414-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\3B8E3C2477\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 58 IoCs
resource yara_rule behavioral1/memory/900-57-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-62-0x00000000004AB7AE-mapping.dmp family_masslogger behavioral1/memory/900-63-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-65-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-68-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-67-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-69-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-71-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-73-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-77-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-79-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-78-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-76-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-74-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-75-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-72-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-70-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-80-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-81-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-83-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-84-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-85-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-82-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-86-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-88-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-87-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-90-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-91-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-92-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-93-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-94-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-96-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-97-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-98-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-99-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-100-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-101-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-102-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-103-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-105-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-107-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-109-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-111-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-113-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-112-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-110-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-108-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-106-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-104-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-95-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-89-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-114-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-115-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-117-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-116-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-118-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-119-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger behavioral1/memory/900-120-0x0000000000400000-0x00000000004B0000-memory.dmp family_masslogger -
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
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.
flow ioc 3 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1356 set thread context of 900 1356 DHL Shipping Documents.exe 28 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 900 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 900 MSBuild.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1356 DHL Shipping Documents.exe 1356 DHL Shipping Documents.exe 1356 DHL Shipping Documents.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1356 DHL Shipping Documents.exe 1356 DHL Shipping Documents.exe 1356 DHL Shipping Documents.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1356 wrote to memory of 900 1356 DHL Shipping Documents.exe 28 PID 1356 wrote to memory of 900 1356 DHL Shipping Documents.exe 28 PID 1356 wrote to memory of 900 1356 DHL Shipping Documents.exe 28 PID 1356 wrote to memory of 900 1356 DHL Shipping Documents.exe 28 PID 1356 wrote to memory of 900 1356 DHL Shipping Documents.exe 28 PID 1356 wrote to memory of 900 1356 DHL Shipping Documents.exe 28
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:1356 -
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:900
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