Analysis
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max time kernel
155s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
13-01-2024 23:29
Static task
static1
Behavioral task
behavioral1
Sample
000100049000TK.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
000100049000TK.exe
Resource
win10v2004-20231215-en
General
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Target
000100049000TK.exe
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Size
955KB
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MD5
113f59d0bd4384226e40c17bf899935d
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SHA1
4bf159402cefe87d328182fee0e82297b1fff5c5
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SHA256
b77f7c59b071608e552cf6ccae6f9e0e3f6790d83ec7d163713b0eedc6eccf25
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SHA512
d8e3717916475013e8ec8cc5a5fef303c4467fe66b944f1031ee73ad964a6a699d3c872a305173ac7565e5000ade605e8cef1cbe3ca9438ac1f85993a69a3b78
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SSDEEP
12288:gFrXv++Cjkemhes5D9Bq1U50kb9zU9uRyM3/CsUABjFG3CiEN4/PosRbOt/kUQQj:gFrpCDsz2SCyiJA+O9ENGZOMb
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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Detect ZGRat V1 1 IoCs
Processes:
resource yara_rule behavioral2/memory/576-9-0x0000000004BD0000-0x0000000004BE6000-memory.dmp family_zgrat_v1 -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/848-17-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral2/memory/2712-50-0x00000000010C0000-0x00000000010D0000-memory.dmp family_stormkitty -
A310logger Executable 3 IoCs
Processes:
resource yara_rule behavioral2/memory/848-17-0x0000000000400000-0x0000000000418000-memory.dmp a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger behavioral2/memory/2712-50-0x00000000010C0000-0x00000000010D0000-memory.dmp a310logger -
Executes dropped EXE 2 IoCs
Processes:
MZ.exeMZ.exepid process 1084 MZ.exe 4388 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 6 IoCs
Processes:
InstallUtil.exeInstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\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 56 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
Processes:
000100049000TK.exe000100049000TK.exedescription pid process target process PID 576 set thread context of 3760 576 000100049000TK.exe 000100049000TK.exe PID 3760 set thread context of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 set thread context of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 set thread context of 1776 3760 000100049000TK.exe InstallUtil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1744 1776 WerFault.exe InstallUtil.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
InstallUtil.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 -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
000100049000TK.exeMZ.exeMZ.exepid process 576 000100049000TK.exe 576 000100049000TK.exe 1084 MZ.exe 1084 MZ.exe 1084 MZ.exe 1084 MZ.exe 4388 MZ.exe 4388 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
000100049000TK.exepid process 3760 000100049000TK.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
000100049000TK.exeInstallUtil.exeMZ.exeInstallUtil.exeMZ.exedescription pid process Token: SeDebugPrivilege 576 000100049000TK.exe Token: SeDebugPrivilege 848 InstallUtil.exe Token: SeDebugPrivilege 1084 MZ.exe Token: SeDebugPrivilege 2712 InstallUtil.exe Token: SeDebugPrivilege 4388 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
000100049000TK.exepid process 3760 000100049000TK.exe 3760 000100049000TK.exe -
Suspicious use of WriteProcessMemory 35 IoCs
Processes:
000100049000TK.exe000100049000TK.exeInstallUtil.exeInstallUtil.exedescription pid process target process PID 576 wrote to memory of 3960 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3960 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3960 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 576 wrote to memory of 3760 576 000100049000TK.exe 000100049000TK.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 848 3760 000100049000TK.exe InstallUtil.exe PID 848 wrote to memory of 1084 848 InstallUtil.exe MZ.exe PID 848 wrote to memory of 1084 848 InstallUtil.exe MZ.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 2712 3760 000100049000TK.exe InstallUtil.exe PID 2712 wrote to memory of 4388 2712 InstallUtil.exe MZ.exe PID 2712 wrote to memory of 4388 2712 InstallUtil.exe MZ.exe PID 3760 wrote to memory of 1776 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 1776 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 1776 3760 000100049000TK.exe InstallUtil.exe PID 3760 wrote to memory of 1776 3760 000100049000TK.exe InstallUtil.exe -
outlook_office_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\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-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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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
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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⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
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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⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1776 -s 804⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1776 -ip 17761⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\MZ.exe.logFilesize
128B
MD53d238ac6dd6710907edf2ad7893a0ed2
SHA1b07aaeeb31bdc6e94097a254be088b092dc1fb68
SHA25602d215d5b6ea166e6c4c4669547cbadecbb427d5baf394fbffc7ef374a967501
SHA512c358aa68303aa99ebc019014b4c1fc2fbfa98733f1ea863bf78ca2b877dc5c610121115432d96504df9e43bdda637b067359b07228b6f129bc5ec9a01ed3ee24
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\InstallUtil.exe.logFilesize
496B
MD55370d1dff94d27a9a6cfab002a5c444b
SHA1fecadd9e884c57822ebeae897a3989c0e678fd1a
SHA2560ddb4ec9a919c3566a4ab48ce605f24816e6fb2efdd6e4070a54a1f5912ec946
SHA51267a3787e49e7d8ea23b3e1766639b36e685cf404042bc270f5c43dc0b0f50623778cb98c013577b3a0a3b425b608ff4e944e29df3725425ce6383759fe7534eb
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeFilesize
20KB
MD51bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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memory/576-9-0x0000000004BD0000-0x0000000004BE6000-memory.dmpFilesize
88KB
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memory/576-7-0x0000000004B80000-0x0000000004B9E000-memory.dmpFilesize
120KB
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memory/576-5-0x0000000004D10000-0x0000000004DAC000-memory.dmpFilesize
624KB
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memory/576-6-0x0000000004F60000-0x0000000004F70000-memory.dmpFilesize
64KB
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memory/576-14-0x00000000748B0000-0x0000000075060000-memory.dmpFilesize
7.7MB
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memory/576-8-0x0000000004E50000-0x0000000004EC8000-memory.dmpFilesize
480KB
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memory/576-0-0x00000000748B0000-0x0000000075060000-memory.dmpFilesize
7.7MB
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memory/576-2-0x00000000051A0000-0x0000000005744000-memory.dmpFilesize
5.6MB
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memory/576-1-0x00000000000D0000-0x00000000001C4000-memory.dmpFilesize
976KB
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memory/576-3-0x0000000004BF0000-0x0000000004C82000-memory.dmpFilesize
584KB
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memory/576-4-0x0000000004C90000-0x0000000004D06000-memory.dmpFilesize
472KB
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memory/848-18-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/848-19-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/848-20-0x0000000001420000-0x0000000001430000-memory.dmpFilesize
64KB
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memory/848-17-0x0000000000400000-0x0000000000418000-memory.dmpFilesize
96KB
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memory/848-22-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/848-45-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/848-24-0x0000000001420000-0x0000000001430000-memory.dmpFilesize
64KB
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memory/848-23-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/1084-36-0x00007FFE72EB0000-0x00007FFE73851000-memory.dmpFilesize
9.6MB
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memory/1084-37-0x0000000001090000-0x00000000010A0000-memory.dmpFilesize
64KB
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memory/1084-38-0x00007FFE72EB0000-0x00007FFE73851000-memory.dmpFilesize
9.6MB
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memory/1084-43-0x00007FFE72EB0000-0x00007FFE73851000-memory.dmpFilesize
9.6MB
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memory/2712-48-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/2712-49-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/2712-50-0x00000000010C0000-0x00000000010D0000-memory.dmpFilesize
64KB
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memory/2712-67-0x0000000074350000-0x0000000074901000-memory.dmpFilesize
5.7MB
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memory/3760-10-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/3760-21-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/3760-13-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/4388-63-0x00007FFE732E0000-0x00007FFE73C81000-memory.dmpFilesize
9.6MB
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memory/4388-64-0x00000000015C0000-0x00000000015D0000-memory.dmpFilesize
64KB
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memory/4388-65-0x00007FFE732E0000-0x00007FFE73C81000-memory.dmpFilesize
9.6MB
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memory/4388-66-0x00007FFE732E0000-0x00007FFE73C81000-memory.dmpFilesize
9.6MB