Analysis
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max time kernel
29s -
max time network
25s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
01-11-2020 06:59
Static task
static1
Behavioral task
behavioral1
Sample
de5b69163b3ee3da6e6b852e857bc7c4.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
de5b69163b3ee3da6e6b852e857bc7c4.exe
Resource
win10v20201028
General
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Target
de5b69163b3ee3da6e6b852e857bc7c4.exe
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Size
773KB
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MD5
de5b69163b3ee3da6e6b852e857bc7c4
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SHA1
cad75eb4beb9e3f5157df853cb023d8ebacd2b1e
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SHA256
07f0f8308cf0da73ba917e592bc6b746fba3078b2ac25a98760f4fc30952d869
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SHA512
e2f6d43cd0bd236223023d718bf5a61505c7fa6f0e6199c04dd232c28ef115ec7cc32f73a1279e3ebed6b1a8ade967600f6d315a23bc41e665c5ab5b25fedc47
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/1744-10-0x0000000003CF0000-0x0000000003D14000-memory.dmp family_redline behavioral1/memory/1744-12-0x0000000003D20000-0x0000000003D42000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 1744 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
de5b69163b3ee3da6e6b852e857bc7c4.exepid process 1644 de5b69163b3ee3da6e6b852e857bc7c4.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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 8 ip-api.com 14 checkip.amazonaws.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
de5b69163b3ee3da6e6b852e857bc7c4.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 de5b69163b3ee3da6e6b852e857bc7c4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString de5b69163b3ee3da6e6b852e857bc7c4.exe -
Processes:
de5b69163b3ee3da6e6b852e857bc7c4.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 de5b69163b3ee3da6e6b852e857bc7c4.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 040000000100000010000000410352dc0ff7501b16f0028eba6f45c50f00000001000000140000005bcaa1c2780f0bcb5a90770451d96f38963f012d0b000000010000001e000000440053005400200052006f006f0074002000430041002000580033000000090000000100000016000000301406082b0601050507030406082b06010505070301140000000100000014000000c4a7b1a47b2c71fadbe14b9075ffc415608589101d00000001000000100000004558d512eecb27464920897de7b66053030000000100000014000000dac9024f54d8f6df94935fb1732638ca6ad77c131900000001000000100000006cf252fec3e8f20996de5d4dd9aef42420000000010000004e0300003082034a30820232a003020102021044afb080d6a327ba893039862ef8406b300d06092a864886f70d0101050500303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f74204341205833301e170d3030303933303231313231395a170d3231303933303134303131355a303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f7420434120583330820122300d06092a864886f70d01010105000382010f003082010a0282010100dfafe99750088357b4cc6265f69082ecc7d32c6b30ca5becd9c37dc740c118148be0e83376492ae33f214993ac4e0eaf3e48cb65eefcd3210f65d22ad9328f8ce5f777b0127bb595c089a3a9baed732e7a0c063283a27e8a1430cd11a0e12a38b9790a31fd50bd8065dfb7516383c8e28861ea4b6181ec526bb9a2e24b1a289f48a39e0cda098e3e172e1edd20df5bc62a8aab2ebd70adc50b1a25907472c57b6aab34d63089ffe568137b540bc8d6aeec5a9c921e3d64b38cc6dfbfc94170ec1672d526ec38553943d0fcfd185c40f197ebd59a9b8d1dbada25b9c6d8dfc115023aabda6ef13e2ef55c089c3cd68369e4109b192ab62957e3e53d9b9ff0025d0203010001a3423040300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106301d0603551d0e04160414c4a7b1a47b2c71fadbe14b9075ffc41560858910300d06092a864886f70d01010505000382010100a31a2c9b17005ca91eee2866373abf83c73f4bc309a095205de3d95944d23e0d3ebd8a4ba0741fce10829c741a1d7e981addcb134bb32044e491e9ccfc7da5db6ae5fee6fde04eddb7003ab57049aff2e5eb02f1d1028b19cb943a5e48c4181e58195f1e025af00cf1b1ada9dc59868b6ee991f586cafab96633aa595bcee2a7167347cb2bcc99b03748cfe3564bf5cf0f0c723287c6f044bb53726d43f526489a5267b758abfe67767178db0da256141339243185a2a8025a3047e1dd5007bc02099000eb6463609b16bc88c912e6d27d918bf93d328d65b4e97cb15776eac5b62839bf15651cc8f677966a0a8d770bd8910b048e07db29b60aee9d82353510 de5b69163b3ee3da6e6b852e857bc7c4.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 1744 bestof.exe 1744 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 1744 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
de5b69163b3ee3da6e6b852e857bc7c4.exebestof.execmd.exedescription pid process target process PID 1644 wrote to memory of 1744 1644 de5b69163b3ee3da6e6b852e857bc7c4.exe bestof.exe PID 1644 wrote to memory of 1744 1644 de5b69163b3ee3da6e6b852e857bc7c4.exe bestof.exe PID 1644 wrote to memory of 1744 1644 de5b69163b3ee3da6e6b852e857bc7c4.exe bestof.exe PID 1644 wrote to memory of 1744 1644 de5b69163b3ee3da6e6b852e857bc7c4.exe bestof.exe PID 1744 wrote to memory of 344 1744 bestof.exe cmd.exe PID 1744 wrote to memory of 344 1744 bestof.exe cmd.exe PID 1744 wrote to memory of 344 1744 bestof.exe cmd.exe PID 1744 wrote to memory of 344 1744 bestof.exe cmd.exe PID 344 wrote to memory of 752 344 cmd.exe PING.EXE PID 344 wrote to memory of 752 344 cmd.exe PING.EXE PID 344 wrote to memory of 752 344 cmd.exe PING.EXE PID 344 wrote to memory of 752 344 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\de5b69163b3ee3da6e6b852e857bc7c4.exe"C:\Users\Admin\AppData\Local\Temp\de5b69163b3ee3da6e6b852e857bc7c4.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:344 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:752
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d
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MD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d