Analysis
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max time kernel
150s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-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 9 IoCs
Processes:
resource yara_rule behavioral1/memory/3056-15-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/3056-13-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/3056-19-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/3056-23-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/3056-21-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/240-138-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/240-140-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/1864-188-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/1864-190-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty -
A310logger Executable 10 IoCs
Processes:
resource yara_rule behavioral1/memory/3056-15-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/3056-13-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/3056-19-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/3056-23-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/3056-21-0x0000000000400000-0x0000000000418000-memory.dmp a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger behavioral1/memory/240-138-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/240-140-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/1864-188-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/1864-190-0x0000000000400000-0x0000000000418000-memory.dmp a310logger -
Executes dropped EXE 3 IoCs
Processes:
MZ.exeMZ.exeMZ.exepid process 2812 MZ.exe 308 MZ.exe 2488 MZ.exe -
Loads dropped DLL 3 IoCs
Processes:
InstallUtil.exeInstallUtil.exeInstallUtil.exepid process 3056 InstallUtil.exe 240 InstallUtil.exe 1864 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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Accesses Microsoft Outlook profiles 1 TTPs 9 IoCs
Processes:
InstallUtil.exeInstallUtil.exeInstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\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.
Processes:
flow ioc 4 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 5 IoCs
Processes:
NNHK09090.exeNNHK09090.exedescription pid process target process PID 2936 set thread context of 3000 2936 NNHK09090.exe NNHK09090.exe PID 3000 set thread context of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 set thread context of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 set thread context of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 set thread context of 860 3000 NNHK09090.exe InstallUtil.exe -
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.
Processes:
InstallUtil.exeInstallUtil.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 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 6 IoCs
Processes:
MZ.exeMZ.exeMZ.exepid process 2812 MZ.exe 2812 MZ.exe 308 MZ.exe 308 MZ.exe 2488 MZ.exe 2488 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
NNHK09090.exepid process 3000 NNHK09090.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
NNHK09090.exepid process 2936 NNHK09090.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
MZ.exeMZ.exeMZ.exedescription pid process Token: SeDebugPrivilege 2812 MZ.exe Token: SeDebugPrivilege 308 MZ.exe Token: SeDebugPrivilege 2488 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
NNHK09090.exepid process 3000 NNHK09090.exe 3000 NNHK09090.exe -
Suspicious use of WriteProcessMemory 61 IoCs
Processes:
NNHK09090.exeNNHK09090.exeInstallUtil.exeInstallUtil.exeInstallUtil.exedescription pid process target process PID 2936 wrote to memory of 3000 2936 NNHK09090.exe NNHK09090.exe PID 2936 wrote to memory of 3000 2936 NNHK09090.exe NNHK09090.exe PID 2936 wrote to memory of 3000 2936 NNHK09090.exe NNHK09090.exe PID 2936 wrote to memory of 3000 2936 NNHK09090.exe NNHK09090.exe PID 2936 wrote to memory of 3000 2936 NNHK09090.exe NNHK09090.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 3056 3000 NNHK09090.exe InstallUtil.exe PID 3056 wrote to memory of 2812 3056 InstallUtil.exe MZ.exe PID 3056 wrote to memory of 2812 3056 InstallUtil.exe MZ.exe PID 3056 wrote to memory of 2812 3056 InstallUtil.exe MZ.exe PID 3056 wrote to memory of 2812 3056 InstallUtil.exe MZ.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 240 3000 NNHK09090.exe InstallUtil.exe PID 240 wrote to memory of 308 240 InstallUtil.exe MZ.exe PID 240 wrote to memory of 308 240 InstallUtil.exe MZ.exe PID 240 wrote to memory of 308 240 InstallUtil.exe MZ.exe PID 240 wrote to memory of 308 240 InstallUtil.exe MZ.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 1864 3000 NNHK09090.exe InstallUtil.exe PID 1864 wrote to memory of 2488 1864 InstallUtil.exe MZ.exe PID 1864 wrote to memory of 2488 1864 InstallUtil.exe MZ.exe PID 1864 wrote to memory of 2488 1864 InstallUtil.exe MZ.exe PID 1864 wrote to memory of 2488 1864 InstallUtil.exe MZ.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe PID 3000 wrote to memory of 860 3000 NNHK09090.exe InstallUtil.exe -
outlook_office_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\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:2936 -
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:3000 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:3056 -
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:2812
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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⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:240 -
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:308
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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⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1864 -
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:2488
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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:860
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
1KB
MD5a266bb7dcc38a562631361bbf61dd11b
SHA13b1efd3a66ea28b16697394703a72ca340a05bd5
SHA256df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
SHA5120da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD502ca95e94bb72153ae17a126c6ea9d6f
SHA154ec0056ba47e055d02ec8a30492d9ad7a1184b8
SHA256c351a354f0e806e9e205e6c43c666f775c76d6080a9482969b595bedf1b80f09
SHA512fcf55500f7ce86434c78326f790b776dc216508041ded5aba1eb03e7f5739a4b9f472223dd8c28c100ea17860f9b38c1c0053632458bbc07eb379f2a40d14761
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD55071e0affe61297026954c13cc55f4eb
SHA11c18e01f6a62d14863f39642a6cdc781587556e9
SHA2562ba695518c4393badd4a9da48969a725defd4238ec53310ecfc6b5f1cb756076
SHA51236bcbcf944b2d4dd1846dd12302df99dfbb068c290692aa70f1af7a05c1a97b05b7f4be03f254ab4156a239873d5f2b51953131275933a40b5b43b11aa090ae1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD579c9155b76c3ba0a7a95a5f3bc2765e6
SHA1112010d1dc2c2e7554a18772e493a3e75d026413
SHA25694f730332cdef25b58317fed6b16b2f1edb3916ae7a0bddb62065713e360cd0e
SHA5126145e2bb5610fa82d4140764015fae5fd7246665c170464711730f5f147e0af937ab2ca81b0898600e607174c48c45fa42520b3af091b8e7f9dcd0bf7d094616
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize242B
MD5037cd4786576f811335a552adbd26b09
SHA1c8e1e08031bc68abcb266838b7409988c7b64927
SHA256bbc3faa3407a546d35292e0e94968052b24bcda7c893e9a80e1a88c72167c85f
SHA5129f43b430fa196de5e40fe80b635029e7b9a799b0cdfc5e9d128e87070c2bd0f5e42c7708338de6b9dcc6414f47b42778d498de5991cda5931f7e1c916696dcdb
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Filesize
171KB
MD59c0c641c06238516f27941aa1166d427
SHA164cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA2564276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06
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Filesize
20KB
MD51bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533