Analysis
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max time kernel
177s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
31-12-2023 05:41
Behavioral task
behavioral1
Sample
2a6a35dd6204faf86248fa5f671dc04d.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2a6a35dd6204faf86248fa5f671dc04d.exe
Resource
win10v2004-20231215-en
General
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Target
2a6a35dd6204faf86248fa5f671dc04d.exe
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Size
115KB
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MD5
2a6a35dd6204faf86248fa5f671dc04d
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SHA1
0b867d6f62ccc5d6e72cf0274299fec4856ad686
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SHA256
9425ccfb3911b1af58bf9aea6e9d7e0aa3e9bf95de26dbb8f70c4f0316e572e3
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SHA512
c73a4a8e15d491973f78aca42055982f61f44f8eee6762b71ef822acd479f5c91d0706ab2d67e1c7ab8aa765111b87a9a2b30962531deae8ee64945f47277fa3
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SSDEEP
3072:SKcWmjRrz3ZKcWmjRrz30272yx/Jqr8Je2dd4f5+X1:hGyGfFi8s2du+X1
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2544 D9uPScq0gat4uTK.exe 2692 CTS.exe -
Loads dropped DLL 1 IoCs
pid Process 2820 2a6a35dd6204faf86248fa5f671dc04d.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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resource yara_rule behavioral1/memory/2820-0-0x0000000000370000-0x0000000000387000-memory.dmp upx behavioral1/memory/2820-11-0x0000000000370000-0x0000000000387000-memory.dmp upx behavioral1/files/0x000c000000015608-10.dat upx behavioral1/memory/2820-8-0x0000000000120000-0x0000000000137000-memory.dmp upx behavioral1/memory/2692-14-0x00000000011E0000-0x00000000011F7000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 2a6a35dd6204faf86248fa5f671dc04d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\CTS.exe 2a6a35dd6204faf86248fa5f671dc04d.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2112 dw20.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2820 2a6a35dd6204faf86248fa5f671dc04d.exe Token: SeDebugPrivilege 2692 CTS.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2820 wrote to memory of 2544 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 29 PID 2820 wrote to memory of 2544 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 29 PID 2820 wrote to memory of 2544 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 29 PID 2820 wrote to memory of 2544 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 29 PID 2820 wrote to memory of 2692 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 31 PID 2820 wrote to memory of 2692 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 31 PID 2820 wrote to memory of 2692 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 31 PID 2820 wrote to memory of 2692 2820 2a6a35dd6204faf86248fa5f671dc04d.exe 31 PID 2544 wrote to memory of 2112 2544 D9uPScq0gat4uTK.exe 32 PID 2544 wrote to memory of 2112 2544 D9uPScq0gat4uTK.exe 32 PID 2544 wrote to memory of 2112 2544 D9uPScq0gat4uTK.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\2a6a35dd6204faf86248fa5f671dc04d.exe"C:\Users\Admin\AppData\Local\Temp\2a6a35dd6204faf86248fa5f671dc04d.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Users\Admin\AppData\Local\Temp\D9uPScq0gat4uTK.exeC:\Users\Admin\AppData\Local\Temp\D9uPScq0gat4uTK.exe2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2544 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exedw20.exe -x -s 3803⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:2112
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C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2692
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
59KB
MD55efd390d5f95c8191f5ac33c4db4b143
SHA142d81b118815361daa3007f1a40f1576e9a9e0bc
SHA2566028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74
SHA512720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d
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Filesize
56KB
MD5e115521ba14b75f53dcdff087ec6898f
SHA187103a892bb514a93d485fba221bacb9da3aae25
SHA25659b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29
SHA512ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a