Analysis
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max time kernel
151s -
max time network
123s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
03-09-2021 06:21
Static task
static1
Behavioral task
behavioral1
Sample
9088890000.exe
Resource
win7-en
Behavioral task
behavioral2
Sample
9088890000.exe
Resource
win10v20210408
General
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Target
9088890000.exe
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Size
383KB
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MD5
df3de39ce7d9c7c7cb1fca65ef4fb6d3
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SHA1
f8dfffbf857a583f4d24cddbf741120a080cef71
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SHA256
c8d68c59e8f4cf194e50766e00d0fa72bba828a43ce4405fc195e3d27d9e4b6f
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SHA512
85a88ef177f795e9694a988ffda710d97a7037ec2e7ed16c6c7f01476acae564baa6994804d057a440a98ab9563a098f80dc4b2e77cf5d69adfaa466ed5d22bc
Malware Config
Signatures
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A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2572-119-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral2/memory/2572-120-0x0000000000412452-mapping.dmp family_stormkitty behavioral2/memory/3748-127-0x0000000000412452-mapping.dmp family_stormkitty -
A310logger Executable 7 IoCs
Processes:
resource yara_rule behavioral2/memory/2572-119-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral2/memory/2572-120-0x0000000000412452-mapping.dmp a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger behavioral2/memory/3748-127-0x0000000000412452-mapping.dmp a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger -
Executes dropped EXE 2 IoCs
Processes:
MZ.exeMZ.exepid process 1996 MZ.exe 3928 MZ.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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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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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 10 icanhazip.com -
Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
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Suspicious use of SetThreadContext 4 IoCs
Processes:
9088890000.exe9088890000.exedescription pid process target process PID 3932 set thread context of 1100 3932 9088890000.exe 9088890000.exe PID 1100 set thread context of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 set thread context of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 set thread context of 3832 1100 9088890000.exe InstallUtil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2656 3832 WerFault.exe InstallUtil.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
InstallUtil.exeInstallUtil.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 InstallUtil.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier InstallUtil.exe Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 InstallUtil.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
MZ.exeMZ.exepid process 1996 MZ.exe 1996 MZ.exe 3928 MZ.exe 3928 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
9088890000.exepid process 1100 9088890000.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
9088890000.exepid process 3932 9088890000.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
InstallUtil.exeMZ.exeInstallUtil.exeMZ.exedescription pid process Token: SeDebugPrivilege 2572 InstallUtil.exe Token: SeDebugPrivilege 1996 MZ.exe Token: SeDebugPrivilege 3748 InstallUtil.exe Token: SeDebugPrivilege 3928 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
9088890000.exepid process 1100 9088890000.exe 1100 9088890000.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
9088890000.exe9088890000.exeInstallUtil.exeInstallUtil.exedescription pid process target process PID 3932 wrote to memory of 1100 3932 9088890000.exe 9088890000.exe PID 3932 wrote to memory of 1100 3932 9088890000.exe 9088890000.exe PID 3932 wrote to memory of 1100 3932 9088890000.exe 9088890000.exe PID 3932 wrote to memory of 1100 3932 9088890000.exe 9088890000.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 2572 1100 9088890000.exe InstallUtil.exe PID 2572 wrote to memory of 1996 2572 InstallUtil.exe MZ.exe PID 2572 wrote to memory of 1996 2572 InstallUtil.exe MZ.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3748 1100 9088890000.exe InstallUtil.exe PID 3748 wrote to memory of 3928 3748 InstallUtil.exe MZ.exe PID 3748 wrote to memory of 3928 3748 InstallUtil.exe MZ.exe PID 1100 wrote to memory of 3832 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3832 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3832 1100 9088890000.exe InstallUtil.exe PID 1100 wrote to memory of 3832 1100 9088890000.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9088890000.exe"C:\Users\Admin\AppData\Local\Temp\9088890000.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\9088890000.exe"C:\Users\Admin\AppData\Local\Temp\9088890000.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3832 -s 884⤵
- Program crash
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\MZ.exe.logMD5
0d96352b982082afe2903d10c1b819a2
SHA137067f1193b4a3deaf27f35a09ddba8e2adee680
SHA256825a471d43d2b81bed778b2bd7a3bf1a2b22a81c3b0de3c68bc2aa9c5bebcec2
SHA512e55862d182b1f1bc1b296cb213e2c576f545120678e2be930dbcf764069ecb9eb3737cfa010c0a4861a5a20605bfae42a49b955d80006c52bd1486b7134bc2af
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\InstallUtil.exe.logMD5
a62535934fa7300b21d015be8236a2e5
SHA1d94f020f9f0f299c46c0ce9b141a3b9da0f32814
SHA2563efaf87f4602570f0be76f4bd246425060a2731f83aec474d7f354f8e6f62c70
SHA51269761425416d2de37dc8934232160e2b8912b433cf8cbfc5505bc00d0c227624808c6414297addb91c966ff27045e9c4679af916efb563576c6fa23fdff1c5a5
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeMD5
1bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeMD5
1bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeMD5
1bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeMD5
1bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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memory/1100-118-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1100-114-0x00000000004024E0-mapping.dmp
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memory/1996-122-0x0000000000000000-mapping.dmp
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memory/1996-125-0x0000000001070000-0x0000000001072000-memory.dmpFilesize
8KB
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memory/2572-120-0x0000000000412452-mapping.dmp
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memory/2572-121-0x00000000031D0000-0x00000000031D1000-memory.dmpFilesize
4KB
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memory/2572-119-0x0000000000400000-0x0000000000418000-memory.dmpFilesize
96KB
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memory/3748-127-0x0000000000412452-mapping.dmp
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memory/3748-129-0x0000000003130000-0x0000000003131000-memory.dmpFilesize
4KB
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memory/3832-136-0x0000000000412452-mapping.dmp
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memory/3928-130-0x0000000000000000-mapping.dmp
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memory/3928-134-0x00000000017D0000-0x00000000017D2000-memory.dmpFilesize
8KB
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memory/3932-117-0x00000000001E0000-0x00000000001E2000-memory.dmpFilesize
8KB