Analysis
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max time kernel
158s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
08-01-2024 11:45
Static task
static1
Behavioral task
behavioral1
Sample
4b580862d50bf8bed3dc2dcf48286a97.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4b580862d50bf8bed3dc2dcf48286a97.exe
Resource
win10v2004-20231215-en
General
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Target
4b580862d50bf8bed3dc2dcf48286a97.exe
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Size
693KB
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MD5
4b580862d50bf8bed3dc2dcf48286a97
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SHA1
f5e9cfb4828485fe1a0e713653fa257c033ff9d7
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SHA256
2f27adfa401fb8fa6dec3c55c1b6dac7c46b8c79240406c534d4a75812ae2418
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SHA512
a2df88330a62b788bc4fe8268e353ed368bfc09995c1cf7fb35bff912e2cc07e303110f704bf84bb5a48d4edd986dd2ecd943e4a9ca58848b3e0d8fb787e4d0a
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SSDEEP
12288:8Q3dh+p1h79i/DdA1NUyfJjQuAkmPVHAHTPz/xMITpDp:8QNjDdkUyfJI272IFDp
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 behavioral2/memory/4280-11-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral2/memory/4280-14-0x0000000000EE0000-0x0000000000EF0000-memory.dmp family_stormkitty -
A310logger Executable 3 IoCs
resource yara_rule behavioral2/memory/4280-11-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral2/memory/4280-14-0x0000000000EE0000-0x0000000000EF0000-memory.dmp a310logger behavioral2/files/0x000a000000023121-19.dat a310logger -
Executes dropped EXE 1 IoCs
pid Process 2536 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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
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 85 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 4060 set thread context of 3512 4060 4b580862d50bf8bed3dc2dcf48286a97.exe 92 PID 3512 set thread context of 4824 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 93 PID 3512 set thread context of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 set thread context of 4172 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 113 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 1764 4824 WerFault.exe 93 4888 4172 WerFault.exe 113 -
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 4 IoCs
pid Process 2536 MZ.exe 2536 MZ.exe 2536 MZ.exe 2536 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3512 4b580862d50bf8bed3dc2dcf48286a97.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4060 4b580862d50bf8bed3dc2dcf48286a97.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4280 InstallUtil.exe Token: SeDebugPrivilege 2536 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 3512 4b580862d50bf8bed3dc2dcf48286a97.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 4060 wrote to memory of 3512 4060 4b580862d50bf8bed3dc2dcf48286a97.exe 92 PID 4060 wrote to memory of 3512 4060 4b580862d50bf8bed3dc2dcf48286a97.exe 92 PID 4060 wrote to memory of 3512 4060 4b580862d50bf8bed3dc2dcf48286a97.exe 92 PID 4060 wrote to memory of 3512 4060 4b580862d50bf8bed3dc2dcf48286a97.exe 92 PID 3512 wrote to memory of 4824 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 93 PID 3512 wrote to memory of 4824 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 93 PID 3512 wrote to memory of 4824 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 93 PID 3512 wrote to memory of 4824 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 93 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 3512 wrote to memory of 4280 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 108 PID 4280 wrote to memory of 2536 4280 InstallUtil.exe 109 PID 4280 wrote to memory of 2536 4280 InstallUtil.exe 109 PID 3512 wrote to memory of 4172 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 113 PID 3512 wrote to memory of 4172 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 113 PID 3512 wrote to memory of 4172 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 113 PID 3512 wrote to memory of 4172 3512 4b580862d50bf8bed3dc2dcf48286a97.exe 113 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4b580862d50bf8bed3dc2dcf48286a97.exe"C:\Users\Admin\AppData\Local\Temp\4b580862d50bf8bed3dc2dcf48286a97.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4060 -
C:\Users\Admin\AppData\Local\Temp\4b580862d50bf8bed3dc2dcf48286a97.exe"C:\Users\Admin\AppData\Local\Temp\4b580862d50bf8bed3dc2dcf48286a97.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3512 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵PID:4824
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4824 -s 804⤵
- Program crash
PID:1764
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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⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4280 -
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:2536
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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⤵PID:4172
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4172 -s 804⤵
- Program crash
PID:4888
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4824 -ip 48241⤵PID:4228
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4172 -ip 41721⤵PID:2836
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
20KB
MD51bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533