Analysis
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max time kernel
152s -
max time network
92s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
20-07-2021 09:03
Static task
static1
Behavioral task
behavioral1
Sample
0000990008T.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
0000990008T.exe
Resource
win10v20210408
General
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Target
0000990008T.exe
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Size
204KB
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MD5
00f5caf530f4b521d37e784cdbdd84fe
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SHA1
ba4342ea14cf43c94cfe9ae002dbb56ce575bb2b
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SHA256
379362027442526fd4d4be9a6fd95b5cc1e6af9387cd508be24c6d5a6bdcba15
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SHA512
d76fe9c38a66892d42fc6a5394020b25c9811cc522ae47da590fd7740c09149c00baec189f9fca776d6d7259585919b4b13b1687db9f3efaaab38d04a18aeb70
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 2 IoCs
resource yara_rule behavioral1/memory/1368-67-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/1368-68-0x0000000000412452-mapping.dmp family_stormkitty -
A310logger Executable 5 IoCs
resource yara_rule behavioral1/memory/1368-67-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/1368-68-0x0000000000412452-mapping.dmp a310logger behavioral1/files/0x00040000000130cc-71.dat a310logger behavioral1/files/0x00040000000130cc-73.dat a310logger behavioral1/files/0x00040000000130cc-74.dat a310logger -
Executes dropped EXE 1 IoCs
pid Process 1608 MZ.exe -
Loads dropped DLL 1 IoCs
pid Process 1368 InstallUtil.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 6 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 2 IoCs
description pid Process procid_target PID 1920 set thread context of 844 1920 0000990008T.exe 26 PID 844 set thread context of 1368 844 0000990008T.exe 27 -
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 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1608 MZ.exe 1608 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 844 0000990008T.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1920 0000990008T.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1608 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 844 0000990008T.exe 844 0000990008T.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1920 wrote to memory of 844 1920 0000990008T.exe 26 PID 1920 wrote to memory of 844 1920 0000990008T.exe 26 PID 1920 wrote to memory of 844 1920 0000990008T.exe 26 PID 1920 wrote to memory of 844 1920 0000990008T.exe 26 PID 1920 wrote to memory of 844 1920 0000990008T.exe 26 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 844 wrote to memory of 1368 844 0000990008T.exe 27 PID 1368 wrote to memory of 1608 1368 InstallUtil.exe 32 PID 1368 wrote to memory of 1608 1368 InstallUtil.exe 32 PID 1368 wrote to memory of 1608 1368 InstallUtil.exe 32 PID 1368 wrote to memory of 1608 1368 InstallUtil.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\0000990008T.exe"C:\Users\Admin\AppData\Local\Temp\0000990008T.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1920 -
C:\Users\Admin\AppData\Local\Temp\0000990008T.exe"C:\Users\Admin\AppData\Local\Temp\0000990008T.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:844 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1368 -
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:1608
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