Analysis
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max time kernel
140s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
29-12-2023 23:53
Behavioral task
behavioral1
Sample
07a35f248a01747dfd03070bd6eced76.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
07a35f248a01747dfd03070bd6eced76.exe
Resource
win10v2004-20231215-en
General
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Target
07a35f248a01747dfd03070bd6eced76.exe
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Size
115KB
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MD5
07a35f248a01747dfd03070bd6eced76
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SHA1
0e73ff1adf932d8ad312589d0b289f493b410115
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SHA256
20f62f530b38f073958200ba31f3b2f54efe2862e322de633581cc95b48b88ff
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SHA512
af9300e02ad9b41da9fa453cb8fd185aaf71cce921d6267d475b79b04fa44b99867807c33e98e7d615dd6db04a29275534f3b5bab03daaf1fbfb805dbaf35bc0
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SSDEEP
3072:SKcWmjRrz3ZKcWmjRrz3UNCf+yTXhl/FCMAzgcGu:hGyGWu+yTwMA0cGu
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2384 4R0E5LZCzVsiRtC.exe 320 CTS.exe -
Loads dropped DLL 1 IoCs
pid Process 1680 07a35f248a01747dfd03070bd6eced76.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/1680-0-0x0000000001080000-0x0000000001097000-memory.dmp upx behavioral1/memory/1680-10-0x0000000001080000-0x0000000001097000-memory.dmp upx behavioral1/memory/320-14-0x0000000001180000-0x0000000001197000-memory.dmp upx behavioral1/files/0x0009000000015c71-12.dat 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" 07a35f248a01747dfd03070bd6eced76.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 07a35f248a01747dfd03070bd6eced76.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2984 dw20.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1680 07a35f248a01747dfd03070bd6eced76.exe Token: SeDebugPrivilege 320 CTS.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1680 wrote to memory of 2384 1680 07a35f248a01747dfd03070bd6eced76.exe 31 PID 1680 wrote to memory of 2384 1680 07a35f248a01747dfd03070bd6eced76.exe 31 PID 1680 wrote to memory of 2384 1680 07a35f248a01747dfd03070bd6eced76.exe 31 PID 1680 wrote to memory of 2384 1680 07a35f248a01747dfd03070bd6eced76.exe 31 PID 1680 wrote to memory of 320 1680 07a35f248a01747dfd03070bd6eced76.exe 29 PID 1680 wrote to memory of 320 1680 07a35f248a01747dfd03070bd6eced76.exe 29 PID 1680 wrote to memory of 320 1680 07a35f248a01747dfd03070bd6eced76.exe 29 PID 1680 wrote to memory of 320 1680 07a35f248a01747dfd03070bd6eced76.exe 29 PID 2384 wrote to memory of 2984 2384 4R0E5LZCzVsiRtC.exe 28 PID 2384 wrote to memory of 2984 2384 4R0E5LZCzVsiRtC.exe 28 PID 2384 wrote to memory of 2984 2384 4R0E5LZCzVsiRtC.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\07a35f248a01747dfd03070bd6eced76.exe"C:\Users\Admin\AppData\Local\Temp\07a35f248a01747dfd03070bd6eced76.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:1680 -
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:320
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C:\Users\Admin\AppData\Local\Temp\4R0E5LZCzVsiRtC.exeC:\Users\Admin\AppData\Local\Temp\4R0E5LZCzVsiRtC.exe2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2384
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C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exedw20.exe -x -s 3761⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:2984
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
56KB
MD5e115521ba14b75f53dcdff087ec6898f
SHA187103a892bb514a93d485fba221bacb9da3aae25
SHA25659b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29
SHA512ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a
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Filesize
59KB
MD55efd390d5f95c8191f5ac33c4db4b143
SHA142d81b118815361daa3007f1a40f1576e9a9e0bc
SHA2566028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74
SHA512720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d