Analysis
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max time kernel
185s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07/05/2023, 14:35
Static task
static1
Behavioral task
behavioral1
Sample
DMStioshPWWQJWm.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
DMStioshPWWQJWm.exe
Resource
win10v2004-20230220-en
General
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Target
DMStioshPWWQJWm.exe
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Size
690KB
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MD5
0ace70c2bc94f4ca950dcb66753293fe
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SHA1
a0a04a509017336fe23b2506c31dbfcb2b5a86d4
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SHA256
25c432720e7e86454a3156b83a485e94fcea7ae77f791a0c0d5810e5ab72ebea
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SHA512
389f24f241ee4f285157a34dedcc6a40862c391d087b85f244f781e4eb4b7461eccf407011829eee7ee20c2c99d4eb3d663b09a06756de4424d419ca61af0d80
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SSDEEP
12288:wDGPjDjEBh9nvTmzGTU3YB73NnYdaZKj4J7ueCDIDpRqSh96J/yyM+:wS/Gh9vTmGA3YB79YdI04BuJDIDp4W65
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6273702310:AAGUtuDoY11m3LCVw0RgYYXqZb-1CRvB5Ok/sendMessage?chat_id=6143595836
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4488-148-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
resource yara_rule behavioral2/memory/4488-148-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation DMStioshPWWQJWm.exe -
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-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DMStioshPWWQJWm.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DMStioshPWWQJWm.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DMStioshPWWQJWm.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 34 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4332 set thread context of 4488 4332 DMStioshPWWQJWm.exe 83 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3100 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 4332 DMStioshPWWQJWm.exe 4332 DMStioshPWWQJWm.exe 4332 DMStioshPWWQJWm.exe 4332 DMStioshPWWQJWm.exe 4332 DMStioshPWWQJWm.exe 4332 DMStioshPWWQJWm.exe 4488 DMStioshPWWQJWm.exe 2268 powershell.exe 4488 DMStioshPWWQJWm.exe 2268 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4332 DMStioshPWWQJWm.exe Token: SeDebugPrivilege 4488 DMStioshPWWQJWm.exe Token: SeDebugPrivilege 2268 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4488 DMStioshPWWQJWm.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4332 wrote to memory of 2268 4332 DMStioshPWWQJWm.exe 79 PID 4332 wrote to memory of 2268 4332 DMStioshPWWQJWm.exe 79 PID 4332 wrote to memory of 2268 4332 DMStioshPWWQJWm.exe 79 PID 4332 wrote to memory of 3100 4332 DMStioshPWWQJWm.exe 81 PID 4332 wrote to memory of 3100 4332 DMStioshPWWQJWm.exe 81 PID 4332 wrote to memory of 3100 4332 DMStioshPWWQJWm.exe 81 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 PID 4332 wrote to memory of 4488 4332 DMStioshPWWQJWm.exe 83 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DMStioshPWWQJWm.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DMStioshPWWQJWm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\DMStioshPWWQJWm.exe"C:\Users\Admin\AppData\Local\Temp\DMStioshPWWQJWm.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4332 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FpJYwUSmRiD.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2268
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FpJYwUSmRiD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp93A0.tmp"2⤵
- Creates scheduled task(s)
PID:3100
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C:\Users\Admin\AppData\Local\Temp\DMStioshPWWQJWm.exe"C:\Users\Admin\AppData\Local\Temp\DMStioshPWWQJWm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4488
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD533d62ef2c354f839a8b2b987e6ee41e7
SHA1d76f64ac411a61f3f232f7f9f7b179bd34042226
SHA256f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9
SHA512d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5b170e6a16565faea07ff111b66d925fe
SHA1c5a98f40eb69be975a78b8c9d8948a467f8f61a4
SHA25665758e31f1afe3fb0c581c0a067b7de729ed64f025045d52ffab5a584d2f0098
SHA5128ee1137cca814047f1dec4e1ca36b620853565bad10584537f5a1990f1e5dfd129ae7bd10b628f49c78fee4a915e535e91b4a004867687671160da7c78c4eac2