Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
01-01-2024 16:32
Static task
static1
Behavioral task
behavioral1
Sample
NNHK09090.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
NNHK09090.exe
Resource
win10v2004-20231215-en
General
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Target
NNHK09090.exe
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Size
266KB
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MD5
c361fd420eaaf02d8d00849565dbe772
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SHA1
910c910c09e8fd3ecca9c44b0652ba05a295def8
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SHA256
4819be19d03a245b83fd593209f3ab072ca7d5491d60fea2d50b848236833088
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SHA512
50bf99f6cc71b47e21ac1718712d7aec7de839444e7985584a0fc9556a2ea9ec69e7eefd8ab33a86743dd34167f3401469ac22d698d5db7e418a18bddbe2db78
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SSDEEP
6144:GEVDew2jZVWwSAEyS+zc0jnKh7La0FBivyLEgM:G7vkwST+IWCnLqvypM
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/3240-8-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral2/memory/3624-40-0x00000000010E0000-0x00000000010F0000-memory.dmp family_stormkitty -
A310logger Executable 4 IoCs
resource yara_rule behavioral2/memory/3240-8-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral2/files/0x000800000002322a-21.dat a310logger behavioral2/memory/3624-40-0x00000000010E0000-0x00000000010F0000-memory.dmp a310logger behavioral2/memory/1844-55-0x00000000014A0000-0x00000000014B0000-memory.dmp a310logger -
Executes dropped EXE 3 IoCs
pid Process 1616 MZ.exe 1844 MZ.exe 3832 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 9 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\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 28 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 2240 set thread context of 1272 2240 NNHK09090.exe 87 PID 1272 set thread context of 3240 1272 NNHK09090.exe 89 PID 1272 set thread context of 3624 1272 NNHK09090.exe 104 PID 1272 set thread context of 2764 1272 NNHK09090.exe 109 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 1616 MZ.exe 1616 MZ.exe 1616 MZ.exe 1616 MZ.exe 1844 MZ.exe 1844 MZ.exe 1844 MZ.exe 1844 MZ.exe 3832 MZ.exe 3832 MZ.exe 3832 MZ.exe 3832 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1272 NNHK09090.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2240 NNHK09090.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 3240 InstallUtil.exe Token: SeDebugPrivilege 1616 MZ.exe Token: SeDebugPrivilege 3624 InstallUtil.exe Token: SeDebugPrivilege 1844 MZ.exe Token: SeDebugPrivilege 2764 InstallUtil.exe Token: SeDebugPrivilege 3832 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1272 NNHK09090.exe 1272 NNHK09090.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 2240 wrote to memory of 1272 2240 NNHK09090.exe 87 PID 2240 wrote to memory of 1272 2240 NNHK09090.exe 87 PID 2240 wrote to memory of 1272 2240 NNHK09090.exe 87 PID 2240 wrote to memory of 1272 2240 NNHK09090.exe 87 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 1272 wrote to memory of 3240 1272 NNHK09090.exe 89 PID 3240 wrote to memory of 1616 3240 InstallUtil.exe 101 PID 3240 wrote to memory of 1616 3240 InstallUtil.exe 101 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 1272 wrote to memory of 3624 1272 NNHK09090.exe 104 PID 3624 wrote to memory of 1844 3624 InstallUtil.exe 105 PID 3624 wrote to memory of 1844 3624 InstallUtil.exe 105 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 1272 wrote to memory of 2764 1272 NNHK09090.exe 109 PID 2764 wrote to memory of 3832 2764 InstallUtil.exe 110 PID 2764 wrote to memory of 3832 2764 InstallUtil.exe 110 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe"C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe"C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1272 -
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
PID:3240 -
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:1616
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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
PID:3624 -
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:1844
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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:2764 -
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:3832
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
128B
MD53d238ac6dd6710907edf2ad7893a0ed2
SHA1b07aaeeb31bdc6e94097a254be088b092dc1fb68
SHA25602d215d5b6ea166e6c4c4669547cbadecbb427d5baf394fbffc7ef374a967501
SHA512c358aa68303aa99ebc019014b4c1fc2fbfa98733f1ea863bf78ca2b877dc5c610121115432d96504df9e43bdda637b067359b07228b6f129bc5ec9a01ed3ee24
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Filesize
496B
MD56f996b93c361c74ec395d765aa6ffc06
SHA1a72207288114c907b252cd4df50b644d40a818ae
SHA256c0b85961e52bcd146b854bb019c956e52e8f7d549cefbb5d3617f996e5328944
SHA51260ab9220dfcc6d012d02349ab8258502c98af5e513beefad816faef76c7e2d19dac73365612139c0ad4fcfeccd88924dfe39ca91b44abffdfd40368945357a3b
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Filesize
20KB
MD51bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533