Analysis
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max time kernel
140s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
28/12/2023, 22:43
Behavioral task
behavioral1
Sample
fd917701441c794e7322dc63eabd1622.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
fd917701441c794e7322dc63eabd1622.exe
Resource
win10v2004-20231222-en
General
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Target
fd917701441c794e7322dc63eabd1622.exe
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Size
116KB
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MD5
fd917701441c794e7322dc63eabd1622
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SHA1
30cef53fc35947faa8b6c79af35514a7db133108
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SHA256
dffa20a1d89fe56463403197911304bec845d0e13a0c21fb98e1e32b3342d534
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SHA512
4af5b6728b326316f83ed641e04114ed9763117c79a55c3fcdd1ac7ed1cd475df6687d1a290fc09dde88b226cb8834c8ff128157e553eea3b3fe4b6886d36d6c
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SSDEEP
3072:SKcWmjRrz3C1HBFqrAbwPpfnWFu0OWFTTM1C4Bh6P1UmlI:hGOhFlbYpfWA0RFvwh4lI
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1932 EbqJEmco5dtLUfN.exe 1344 CTS.exe -
Loads dropped DLL 1 IoCs
pid Process 1368 fd917701441c794e7322dc63eabd1622.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/1368-0-0x0000000000AA0000-0x0000000000AB7000-memory.dmp upx behavioral1/files/0x000b000000014ef8-13.dat upx behavioral1/memory/1344-16-0x0000000000820000-0x0000000000837000-memory.dmp upx behavioral1/memory/1368-11-0x0000000000AA0000-0x0000000000AB7000-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" fd917701441c794e7322dc63eabd1622.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 fd917701441c794e7322dc63eabd1622.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1368 fd917701441c794e7322dc63eabd1622.exe Token: SeDebugPrivilege 1344 CTS.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1368 wrote to memory of 1932 1368 fd917701441c794e7322dc63eabd1622.exe 28 PID 1368 wrote to memory of 1932 1368 fd917701441c794e7322dc63eabd1622.exe 28 PID 1368 wrote to memory of 1932 1368 fd917701441c794e7322dc63eabd1622.exe 28 PID 1368 wrote to memory of 1932 1368 fd917701441c794e7322dc63eabd1622.exe 28 PID 1368 wrote to memory of 1344 1368 fd917701441c794e7322dc63eabd1622.exe 29 PID 1368 wrote to memory of 1344 1368 fd917701441c794e7322dc63eabd1622.exe 29 PID 1368 wrote to memory of 1344 1368 fd917701441c794e7322dc63eabd1622.exe 29 PID 1368 wrote to memory of 1344 1368 fd917701441c794e7322dc63eabd1622.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\fd917701441c794e7322dc63eabd1622.exe"C:\Users\Admin\AppData\Local\Temp\fd917701441c794e7322dc63eabd1622.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:1368 -
C:\Users\Admin\AppData\Local\Temp\EbqJEmco5dtLUfN.exeC:\Users\Admin\AppData\Local\Temp\EbqJEmco5dtLUfN.exe2⤵
- Executes dropped EXE
PID:1932
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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:1344
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
87KB
MD5015207664f86b0d334146d7bc7551a0f
SHA1b466beca074c3c4a500bfa00fd691cf0fe300d8c
SHA2563212cacc4d669f381ad1048e43726ec2841de32135438992c55f792bf03beafc
SHA5126ced0d294fd9c330cab20739336c6cd4c1e202d521fd41c6fd6bdfe7e720247c84ac10a7e25855d3cc9b08f2d9251798eb52383527a9363c5126a6b205ff0657
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Filesize
29KB
MD570aa23c9229741a9b52e5ce388a883ac
SHA1b42683e21e13de3f71db26635954d992ebe7119e
SHA2569d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2
SHA512be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5