Analysis
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max time kernel
40s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
05-01-2024 11:43
Static task
static1
Behavioral task
behavioral1
Sample
4399c21e668cbe469401638c66ef0519.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4399c21e668cbe469401638c66ef0519.exe
Resource
win10v2004-20231215-en
General
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Target
4399c21e668cbe469401638c66ef0519.exe
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Size
398KB
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MD5
4399c21e668cbe469401638c66ef0519
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SHA1
6caabc0989fb59963f1178de1a528f0f50b7fe33
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SHA256
dd28e77b8a4352128745bf0a5b8a7df5dc2cfd7b80dd5cb0ea300d95098cccc1
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SHA512
02d09cd6b09f4ac680bb0d4748e72b347c37e87154c2422d8b879297fd48254608b598bb6b8db8a1258c9571f33f69e7ae791ec1e23682205cf517380d4bf4ff
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SSDEEP
6144:+/LAKDz4XXXXXXXXXXXXXAWkcDVfe7BKJwhfgJeDs4fTe+dbOQXXXXXXXXXXXXX/:cI7mW4DNxk/w1DBX1
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 7 IoCs
resource yara_rule behavioral1/memory/2220-13-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/2220-21-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/2220-19-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/2220-17-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/2220-11-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/2980-105-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/2980-103-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty -
A310logger Executable 8 IoCs
resource yara_rule behavioral1/memory/2220-13-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/2220-21-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/2220-19-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/2220-17-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/2220-11-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/files/0x000b000000016577-83.dat a310logger behavioral1/memory/2980-105-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/2980-103-0x0000000000400000-0x0000000000418000-memory.dmp a310logger -
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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\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 2 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 1016 set thread context of 2168 1016 4399c21e668cbe469401638c66ef0519.exe 29 PID 2168 set thread context of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 -
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 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: GetForegroundWindowSpam 1 IoCs
pid Process 2168 4399c21e668cbe469401638c66ef0519.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1016 4399c21e668cbe469401638c66ef0519.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2168 4399c21e668cbe469401638c66ef0519.exe 2168 4399c21e668cbe469401638c66ef0519.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1016 wrote to memory of 2168 1016 4399c21e668cbe469401638c66ef0519.exe 29 PID 1016 wrote to memory of 2168 1016 4399c21e668cbe469401638c66ef0519.exe 29 PID 1016 wrote to memory of 2168 1016 4399c21e668cbe469401638c66ef0519.exe 29 PID 1016 wrote to memory of 2168 1016 4399c21e668cbe469401638c66ef0519.exe 29 PID 1016 wrote to memory of 2168 1016 4399c21e668cbe469401638c66ef0519.exe 29 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 PID 2168 wrote to memory of 2220 2168 4399c21e668cbe469401638c66ef0519.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4399c21e668cbe469401638c66ef0519.exe"C:\Users\Admin\AppData\Local\Temp\4399c21e668cbe469401638c66ef0519.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1016 -
C:\Users\Admin\AppData\Local\Temp\4399c21e668cbe469401638c66ef0519.exe"C:\Users\Admin\AppData\Local\Temp\4399c21e668cbe469401638c66ef0519.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2168 -
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
- outlook_office_path
- outlook_win_path
PID:2220 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"4⤵PID:2864
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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:2980
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"4⤵PID:2460
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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:2124
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"4⤵PID:2976
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD52f56d46dd320df5d42c65b7ea6760268
SHA1ba1324f45d936e0e4318ae45e3bed9c8215db9c1
SHA256bddf96814caccf79387c13ab55d20c2ca432fd96b1d4a60c31f3732917bf4c1c
SHA5127f8c316ca054c378787e0e262067daae3b37b73660b0a520640d2c6ced4c0172c4aeceb59a5a87ef44b8d8065b888f63ecdca771bb74d7f28e33e0c781818f31
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
109KB
MD56f3a5a6c3b9eac80bc07a15cab733a71
SHA1947ab74a86cdd9b6099ea682fa8292e0e6023745
SHA256b9e2bb2a97c1d13c1e06a4918933299a004f0b2ce2a8baeab2d3a3731a0194ff
SHA5124bf59105a29a1a68f2d57b534fe7d8a02bfa799b8ee36689b893037cbad5e9bb18408d17ba6d104fcccb79f1dfbac937b71fceb668f8f8fec7158088bca23246
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Filesize
20KB
MD51bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533