Analysis
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max time kernel
153s -
max time network
138s -
platform
windows7_x64 -
resource
win7-en -
submitted
03-09-2021 06:21
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE#09090002.exe
Resource
win7-en
Behavioral task
behavioral2
Sample
INVOICE#09090002.exe
Resource
win10v20210408
General
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Target
INVOICE#09090002.exe
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Size
592KB
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MD5
8146345093404dfc79a943b0da184e47
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SHA1
1472f04b7d707f523bc98975fc593c78ae5f4710
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SHA256
f0f118c8bca327b5a4d164509fae627e4bd37b087abc1b7c2e337bfc8e3ff90e
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SHA512
a8c3e5cb167bd8a104af57339cf997e052426817a4784bfde13e768d9f54aeee8bd39cad5ecbe4a61de561261709003caad7864d6e7b53871ae125c3d4d472cd
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
Processes:
resource yara_rule behavioral1/memory/1520-65-0x0000000000412452-mapping.dmp family_stormkitty behavioral1/memory/1520-64-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty -
A310logger Executable 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1520-65-0x0000000000412452-mapping.dmp a310logger behavioral1/memory/1520-64-0x0000000000400000-0x0000000000418000-memory.dmp a310logger \Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe a310logger -
Executes dropped EXE 1 IoCs
Processes:
MZ.exepid process 1836 MZ.exe -
Loads dropped DLL 1 IoCs
Processes:
InstallUtil.exepid process 1520 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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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 7 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
Processes:
INVOICE#09090002.exeINVOICE#09090002.exedescription pid process target process PID 1664 set thread context of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1736 set thread context of 1520 1736 INVOICE#09090002.exe InstallUtil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
InstallUtil.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 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
INVOICE#09090002.exeMZ.exepid process 1664 INVOICE#09090002.exe 1664 INVOICE#09090002.exe 1836 MZ.exe 1836 MZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
INVOICE#09090002.exepid process 1736 INVOICE#09090002.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INVOICE#09090002.exeMZ.exedescription pid process Token: SeDebugPrivilege 1664 INVOICE#09090002.exe Token: SeDebugPrivilege 1836 MZ.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
INVOICE#09090002.exepid process 1736 INVOICE#09090002.exe 1736 INVOICE#09090002.exe -
Suspicious use of WriteProcessMemory 33 IoCs
Processes:
INVOICE#09090002.exeINVOICE#09090002.exeInstallUtil.exedescription pid process target process PID 1664 wrote to memory of 1748 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1748 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1748 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1748 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1764 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1764 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1764 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1764 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1664 wrote to memory of 1736 1664 INVOICE#09090002.exe INVOICE#09090002.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1736 wrote to memory of 1520 1736 INVOICE#09090002.exe InstallUtil.exe PID 1520 wrote to memory of 1836 1520 InstallUtil.exe MZ.exe PID 1520 wrote to memory of 1836 1520 InstallUtil.exe MZ.exe PID 1520 wrote to memory of 1836 1520 InstallUtil.exe MZ.exe PID 1520 wrote to memory of 1836 1520 InstallUtil.exe MZ.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"2⤵PID:1748
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C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"2⤵PID:1764
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C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE#09090002.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1520 -
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:1836
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeMD5
1bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeMD5
1bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exeMD5
1bad0cbd09b05a21157d8255dc801778
SHA1ff284bba12f011b72e20d4c9537d6c455cdbf228
SHA256218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9
SHA5124fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533
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memory/1520-67-0x0000000000430000-0x0000000000431000-memory.dmpFilesize
4KB
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memory/1520-65-0x0000000000412452-mapping.dmp
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memory/1520-64-0x0000000000400000-0x0000000000418000-memory.dmpFilesize
96KB
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memory/1664-55-0x00000000020E0000-0x0000000002151000-memory.dmpFilesize
452KB
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memory/1664-56-0x00000000002B0000-0x00000000002BF000-memory.dmpFilesize
60KB
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memory/1664-53-0x00000000002C0000-0x00000000002C1000-memory.dmpFilesize
4KB
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memory/1664-60-0x0000000004A20000-0x0000000004A21000-memory.dmpFilesize
4KB
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memory/1736-58-0x00000000004024E0-mapping.dmp
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memory/1736-63-0x0000000075AD1000-0x0000000075AD3000-memory.dmpFilesize
8KB
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memory/1736-61-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1736-57-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1836-69-0x0000000000000000-mapping.dmp
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memory/1836-72-0x0000000000230000-0x0000000000232000-memory.dmpFilesize
8KB