Analysis
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max time kernel
141s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
14-02-2024 06:45
Behavioral task
behavioral1
Sample
9b077395bb1492f96e587f10a50160ca.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
9b077395bb1492f96e587f10a50160ca.exe
Resource
win10v2004-20231222-en
General
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Target
9b077395bb1492f96e587f10a50160ca.exe
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Size
29KB
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MD5
9b077395bb1492f96e587f10a50160ca
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SHA1
ddb34fc67d3915ece8b86ae93ac12aa119bb6bd8
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SHA256
601516287e8a0c184f749f70436e27b654785457a8f3a11c5fd1220abf884af6
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SHA512
2c7e1bf12891c8ddc972d814d233214c811b03e187ccf9fb4f349927b29a9d3393771db4b87a8f8e134f5116d59d9c4547c9ba4fa3c41bfce524329790b25d17
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SSDEEP
768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFYm:SKcR4mjD9r823Fb
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2496 CTS.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 behavioral2/memory/1528-0-0x0000000000480000-0x0000000000497000-memory.dmp upx behavioral2/files/0x0007000000023232-6.dat upx behavioral2/memory/2496-9-0x0000000000D00000-0x0000000000D17000-memory.dmp upx behavioral2/memory/1528-7-0x0000000000480000-0x0000000000497000-memory.dmp upx behavioral2/files/0x0003000000022778-12.dat upx behavioral2/files/0x000700000002322f-29.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" 9b077395bb1492f96e587f10a50160ca.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 9b077395bb1492f96e587f10a50160ca.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1528 9b077395bb1492f96e587f10a50160ca.exe Token: SeDebugPrivilege 2496 CTS.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1528 wrote to memory of 2496 1528 9b077395bb1492f96e587f10a50160ca.exe 84 PID 1528 wrote to memory of 2496 1528 9b077395bb1492f96e587f10a50160ca.exe 84 PID 1528 wrote to memory of 2496 1528 9b077395bb1492f96e587f10a50160ca.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\9b077395bb1492f96e587f10a50160ca.exe"C:\Users\Admin\AppData\Local\Temp\9b077395bb1492f96e587f10a50160ca.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1528 -
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:2496
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
352KB
MD559f21966c0fbe599294bbef60caea6b0
SHA187637365573c4051d0100ba692648c1c1b783dc2
SHA25679bf16c9f1ea4dd83ad34edf9e4f56fabd96c1e3a04bd1dd9ab400e567feea8e
SHA5129264c1dd879b33c2302a02b812c5ed5062e3edf6e24ef0ae5be779612c575b176e828aa7625375baece7d7d5ab1540b13ee7454b2af73728e16b8cb0cf6ac503
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Filesize
29KB
MD59e61f7df8ee773b0cfd9c43ac69075ec
SHA1f15112b735d1a7788db33f420562f30c0db94b8c
SHA256365d844d7b186f019fba6a86bffdf2bd4d60fb963dc9626bd5e95ca36dbe2dbe
SHA51291f8c489162c576c4405f50c6923e839636af8a8aa57b860964b00e894b7a90809920d86e270e77b190a66ab92dadb7cb8bbda5a529c97592a47cd7f47a7d84b
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Filesize
29KB
MD570aa23c9229741a9b52e5ce388a883ac
SHA1b42683e21e13de3f71db26635954d992ebe7119e
SHA2569d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2
SHA512be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5