Analysis
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max time kernel
138s -
max time network
149s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
15-02-2021 10:17
Static task
static1
Behavioral task
behavioral1
Sample
FC33.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
FC33.exe
Resource
win10v20201028
General
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Target
FC33.exe
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Size
19KB
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MD5
5898d001eedb60a637f9334965e241a9
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SHA1
59d543084a8230ac387dee45b027c47282256d02
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SHA256
08eb269d6c3bfaf4d3cde53a987e0adc96a171235d3c34e3c6e9422920e793dd
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SHA512
d8be87bddd9f289597221d864370dfdd1ea94d2910837e211f34eec0fee56477672d98bd0565059389ff6d9ac79002f0ffa792feb84db02b18f432c6174e71e0
Malware Config
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1312-15-0x00000000001F0000-0x0000000000214000-memory.dmp family_redline behavioral1/memory/1312-16-0x0000000000440000-0x0000000000462000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
chrome.exechrome.exepid process 1196 chrome.exe 1312 chrome.exe -
Loads dropped DLL 1 IoCs
Processes:
FC33.exepid process 1096 FC33.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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Suspicious use of SetThreadContext 1 IoCs
Processes:
FC33.exedescription pid process target process PID 1096 set thread context of 1312 1096 FC33.exe chrome.exe -
Processes:
FC33.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 FC33.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 FC33.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
FC33.exepid process 1096 FC33.exe 1096 FC33.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
FC33.exechrome.exedescription pid process Token: SeDebugPrivilege 1096 FC33.exe Token: SeDebugPrivilege 1312 chrome.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
FC33.exedescription pid process target process PID 1096 wrote to memory of 1196 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1196 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1196 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1196 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe PID 1096 wrote to memory of 1312 1096 FC33.exe chrome.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\FC33.exe"C:\Users\Admin\AppData\Local\Temp\FC33.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\chrome.exe"C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\chrome.exe"2⤵
- Executes dropped EXE
PID:1196 -
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\chrome.exe"C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\chrome.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1312
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
6a673bfc3b67ae9782cb31af2f234c68
SHA17544e89566d91e84e3cd437b9a073e5f6b56566e
SHA256978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e
SHA51272c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39
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MD5
6a673bfc3b67ae9782cb31af2f234c68
SHA17544e89566d91e84e3cd437b9a073e5f6b56566e
SHA256978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e
SHA51272c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39
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MD5
6a673bfc3b67ae9782cb31af2f234c68
SHA17544e89566d91e84e3cd437b9a073e5f6b56566e
SHA256978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e
SHA51272c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39