Analysis
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max time kernel
150s -
max time network
119s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
13-07-2021 06:14
Static task
static1
Behavioral task
behavioral1
Sample
409000005400.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
409000005400.exe
Resource
win10v20210408
General
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Target
409000005400.exe
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Size
353KB
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MD5
37bebc90630b20c8d9142cfde16c568c
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SHA1
60af71fb691b4ab299526a26637f823f7ced3450
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SHA256
455517009fdfd87789fdfec23ccb1b00ac85f5b3bcc47430f4709ddab4073fba
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SHA512
934f8dfb26f8b5e18e66896880154007191add8b2379668cb1d371e0acec5b81e20c0939bfe454efeb9cd1f61d4b22cf97a656a48e561583c08e9a911af9d521
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 4 IoCs
resource yara_rule behavioral2/memory/3452-119-0x0000000000412452-mapping.dmp family_stormkitty behavioral2/memory/3452-118-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral2/memory/2084-127-0x0000000000412452-mapping.dmp family_stormkitty behavioral2/memory/3956-136-0x0000000000412452-mapping.dmp family_stormkitty -
A310logger Executable 10 IoCs
resource yara_rule behavioral2/memory/3452-119-0x0000000000412452-mapping.dmp a310logger behavioral2/memory/3452-118-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral2/files/0x000200000001a4f4-123.dat a310logger behavioral2/files/0x000200000001a4f4-124.dat a310logger behavioral2/memory/2084-127-0x0000000000412452-mapping.dmp a310logger behavioral2/files/0x000300000001ab4a-131.dat a310logger behavioral2/files/0x000300000001ab4a-132.dat a310logger behavioral2/memory/3956-136-0x0000000000412452-mapping.dmp a310logger behavioral2/files/0x000400000001ab4a-139.dat a310logger behavioral2/files/0x000400000001ab4a-140.dat a310logger -
Executes dropped EXE 3 IoCs
pid Process 3808 MZ.exe 3908 MZ.exe 3800 MZ.exe -
Loads dropped DLL 1 IoCs
pid Process 804 409000005400.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.
flow ioc 11 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
description pid Process procid_target PID 804 set thread context of 2952 804 409000005400.exe 75 PID 2952 set thread context of 3452 2952 409000005400.exe 76 PID 2952 set thread context of 2084 2952 409000005400.exe 81 PID 2952 set thread context of 3956 2952 409000005400.exe 83 -
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 6 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process 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 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 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3808 MZ.exe 3808 MZ.exe 3908 MZ.exe 3908 MZ.exe 3800 MZ.exe 3800 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2952 409000005400.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 804 409000005400.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 3452 InstallUtil.exe Token: SeDebugPrivilege 3808 MZ.exe Token: SeDebugPrivilege 2084 InstallUtil.exe Token: SeDebugPrivilege 3908 MZ.exe Token: SeDebugPrivilege 3956 InstallUtil.exe Token: SeDebugPrivilege 3800 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2952 409000005400.exe 2952 409000005400.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 804 wrote to memory of 2952 804 409000005400.exe 75 PID 804 wrote to memory of 2952 804 409000005400.exe 75 PID 804 wrote to memory of 2952 804 409000005400.exe 75 PID 804 wrote to memory of 2952 804 409000005400.exe 75 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 2952 wrote to memory of 3452 2952 409000005400.exe 76 PID 3452 wrote to memory of 3808 3452 InstallUtil.exe 77 PID 3452 wrote to memory of 3808 3452 InstallUtil.exe 77 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2952 wrote to memory of 2084 2952 409000005400.exe 81 PID 2084 wrote to memory of 3908 2084 InstallUtil.exe 82 PID 2084 wrote to memory of 3908 2084 InstallUtil.exe 82 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 2952 wrote to memory of 3956 2952 409000005400.exe 83 PID 3956 wrote to memory of 3800 3956 InstallUtil.exe 84 PID 3956 wrote to memory of 3800 3956 InstallUtil.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\409000005400.exe"C:\Users\Admin\AppData\Local\Temp\409000005400.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:804 -
C:\Users\Admin\AppData\Local\Temp\409000005400.exe"C:\Users\Admin\AppData\Local\Temp\409000005400.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2952 -
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
PID:3452 -
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
PID:3808
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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
PID:2084 -
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
PID:3908
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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
PID:3956 -
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
PID:3800
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