Analysis
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max time kernel
135s -
max time network
137s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-11-2020 09:15
Static task
static1
Behavioral task
behavioral1
Sample
1bf918f0f3aabf771a2cac4e84ea59ce.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
1bf918f0f3aabf771a2cac4e84ea59ce.exe
Resource
win10v20201028
General
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Target
1bf918f0f3aabf771a2cac4e84ea59ce.exe
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Size
667KB
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MD5
1bf918f0f3aabf771a2cac4e84ea59ce
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SHA1
b2934a11dc758b17d75eec1f3b6add296688f1ab
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SHA256
326b911dfdd41599d7297f2e54ef03956d0f9ff4e5518144a2dc2b1bda6eb84c
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SHA512
76d44bd8d7d76137f168d91680afaf3fdddd297ae58222087e1a0a15b9e7f045a43b37e1555758ad0f4d1a7f46e3e7f5f7725869ce51540b20652ad83ec9d6c6
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 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1500-15-0x00000000003D0000-0x00000000003F4000-memory.dmp family_redline behavioral1/memory/1500-16-0x0000000002060000-0x0000000002082000-memory.dmp family_redline behavioral1/memory/824-24-0x0000000003E10000-0x0000000003E34000-memory.dmp family_redline behavioral1/memory/824-25-0x0000000006630000-0x0000000006652000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
bestof.exebestofd.exepid process 1748 bestof.exe 824 bestofd.exe -
Loads dropped DLL 2 IoCs
Processes:
1bf918f0f3aabf771a2cac4e84ea59ce.exepid process 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe 1056 1bf918f0f3aabf771a2cac4e84ea59ce.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 11 ip-api.com 16 checkip.amazonaws.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bestof.exedescription pid process target process PID 1748 set thread context of 1500 1748 bestof.exe AddInProcess32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
1bf918f0f3aabf771a2cac4e84ea59ce.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 1bf918f0f3aabf771a2cac4e84ea59ce.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 1bf918f0f3aabf771a2cac4e84ea59ce.exe -
Processes:
1bf918f0f3aabf771a2cac4e84ea59ce.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 1bf918f0f3aabf771a2cac4e84ea59ce.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 040000000100000010000000410352dc0ff7501b16f0028eba6f45c50f00000001000000140000005bcaa1c2780f0bcb5a90770451d96f38963f012d0b000000010000001e000000440053005400200052006f006f0074002000430041002000580033000000090000000100000016000000301406082b0601050507030406082b06010505070301140000000100000014000000c4a7b1a47b2c71fadbe14b9075ffc415608589101d00000001000000100000004558d512eecb27464920897de7b66053030000000100000014000000dac9024f54d8f6df94935fb1732638ca6ad77c131900000001000000100000006cf252fec3e8f20996de5d4dd9aef42420000000010000004e0300003082034a30820232a003020102021044afb080d6a327ba893039862ef8406b300d06092a864886f70d0101050500303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f74204341205833301e170d3030303933303231313231395a170d3231303933303134303131355a303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f7420434120583330820122300d06092a864886f70d01010105000382010f003082010a0282010100dfafe99750088357b4cc6265f69082ecc7d32c6b30ca5becd9c37dc740c118148be0e83376492ae33f214993ac4e0eaf3e48cb65eefcd3210f65d22ad9328f8ce5f777b0127bb595c089a3a9baed732e7a0c063283a27e8a1430cd11a0e12a38b9790a31fd50bd8065dfb7516383c8e28861ea4b6181ec526bb9a2e24b1a289f48a39e0cda098e3e172e1edd20df5bc62a8aab2ebd70adc50b1a25907472c57b6aab34d63089ffe568137b540bc8d6aeec5a9c921e3d64b38cc6dfbfc94170ec1672d526ec38553943d0fcfd185c40f197ebd59a9b8d1dbada25b9c6d8dfc115023aabda6ef13e2ef55c089c3cd68369e4109b192ab62957e3e53d9b9ff0025d0203010001a3423040300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106301d0603551d0e04160414c4a7b1a47b2c71fadbe14b9075ffc41560858910300d06092a864886f70d01010505000382010100a31a2c9b17005ca91eee2866373abf83c73f4bc309a095205de3d95944d23e0d3ebd8a4ba0741fce10829c741a1d7e981addcb134bb32044e491e9ccfc7da5db6ae5fee6fde04eddb7003ab57049aff2e5eb02f1d1028b19cb943a5e48c4181e58195f1e025af00cf1b1ada9dc59868b6ee991f586cafab96633aa595bcee2a7167347cb2bcc99b03748cfe3564bf5cf0f0c723287c6f044bb53726d43f526489a5267b758abfe67767178db0da256141339243185a2a8025a3047e1dd5007bc02099000eb6463609b16bc88c912e6d27d918bf93d328d65b4e97cb15776eac5b62839bf15651cc8f677966a0a8d770bd8910b048e07db29b60aee9d82353510 1bf918f0f3aabf771a2cac4e84ea59ce.exe -
Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
AddInProcess32.exebestofd.exepid process 1500 AddInProcess32.exe 1500 AddInProcess32.exe 824 bestofd.exe 824 bestofd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
bestof.exeAddInProcess32.exebestofd.exedescription pid process Token: SeDebugPrivilege 1748 bestof.exe Token: SeDebugPrivilege 1500 AddInProcess32.exe Token: SeDebugPrivilege 824 bestofd.exe -
Suspicious use of WriteProcessMemory 34 IoCs
Processes:
1bf918f0f3aabf771a2cac4e84ea59ce.exebestof.exeAddInProcess32.execmd.exebestofd.execmd.exedescription pid process target process PID 1056 wrote to memory of 1748 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestof.exe PID 1056 wrote to memory of 1748 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestof.exe PID 1056 wrote to memory of 1748 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestof.exe PID 1056 wrote to memory of 1748 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestof.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1748 wrote to memory of 1500 1748 bestof.exe AddInProcess32.exe PID 1056 wrote to memory of 824 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestofd.exe PID 1056 wrote to memory of 824 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestofd.exe PID 1056 wrote to memory of 824 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestofd.exe PID 1056 wrote to memory of 824 1056 1bf918f0f3aabf771a2cac4e84ea59ce.exe bestofd.exe PID 1500 wrote to memory of 2044 1500 AddInProcess32.exe cmd.exe PID 1500 wrote to memory of 2044 1500 AddInProcess32.exe cmd.exe PID 1500 wrote to memory of 2044 1500 AddInProcess32.exe cmd.exe PID 1500 wrote to memory of 2044 1500 AddInProcess32.exe cmd.exe PID 2044 wrote to memory of 316 2044 cmd.exe PING.EXE PID 2044 wrote to memory of 316 2044 cmd.exe PING.EXE PID 2044 wrote to memory of 316 2044 cmd.exe PING.EXE PID 2044 wrote to memory of 316 2044 cmd.exe PING.EXE PID 824 wrote to memory of 1340 824 bestofd.exe cmd.exe PID 824 wrote to memory of 1340 824 bestofd.exe cmd.exe PID 824 wrote to memory of 1340 824 bestofd.exe cmd.exe PID 824 wrote to memory of 1340 824 bestofd.exe cmd.exe PID 1340 wrote to memory of 1184 1340 cmd.exe PING.EXE PID 1340 wrote to memory of 1184 1340 cmd.exe PING.EXE PID 1340 wrote to memory of 1184 1340 cmd.exe PING.EXE PID 1340 wrote to memory of 1184 1340 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\1bf918f0f3aabf771a2cac4e84ea59ce.exe"C:\Users\Admin\AppData\Local\Temp\1bf918f0f3aabf771a2cac4e84ea59ce.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 35⤵
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exebestofd.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
b77a1d58626a5d4a77202afbf717accb
SHA11a37bf11e2b75384785d05780fe17fe1167bfbb1
SHA256a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13
SHA512d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
b77a1d58626a5d4a77202afbf717accb
SHA11a37bf11e2b75384785d05780fe17fe1167bfbb1
SHA256a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13
SHA512d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exeMD5
72131adb0e2315281aae445db11e09a2
SHA1712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e
SHA2569ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65
SHA512bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22
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\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
b77a1d58626a5d4a77202afbf717accb
SHA11a37bf11e2b75384785d05780fe17fe1167bfbb1
SHA256a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13
SHA512d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26
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\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exeMD5
72131adb0e2315281aae445db11e09a2
SHA1712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e
SHA2569ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65
SHA512bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22
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memory/316-27-0x0000000000000000-mapping.dmp
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memory/824-21-0x0000000003C20000-0x0000000003C31000-memory.dmpFilesize
68KB
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memory/824-25-0x0000000006630000-0x0000000006652000-memory.dmpFilesize
136KB
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memory/824-24-0x0000000003E10000-0x0000000003E34000-memory.dmpFilesize
144KB
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memory/824-23-0x0000000074570000-0x0000000074C5E000-memory.dmpFilesize
6.9MB
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memory/824-22-0x0000000003D80000-0x0000000003D91000-memory.dmpFilesize
68KB
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memory/824-20-0x0000000002429000-0x000000000242A000-memory.dmpFilesize
4KB
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memory/824-18-0x0000000000000000-mapping.dmp
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memory/1056-0-0x0000000002544000-0x0000000002555000-memory.dmpFilesize
68KB
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memory/1056-1-0x0000000002630000-0x0000000002641000-memory.dmpFilesize
68KB
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memory/1184-29-0x0000000000000000-mapping.dmp
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memory/1340-28-0x0000000000000000-mapping.dmp
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memory/1500-15-0x00000000003D0000-0x00000000003F4000-memory.dmpFilesize
144KB
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memory/1500-16-0x0000000002060000-0x0000000002082000-memory.dmpFilesize
136KB
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memory/1500-14-0x0000000074570000-0x0000000074C5E000-memory.dmpFilesize
6.9MB
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memory/1500-13-0x00000000020B0000-0x00000000020C1000-memory.dmpFilesize
68KB
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memory/1500-12-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/1500-11-0x000000000040CD2F-mapping.dmp
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memory/1500-10-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/1636-2-0x000007FEF6930000-0x000007FEF6BAA000-memory.dmpFilesize
2.5MB
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memory/1748-8-0x00000000010D0000-0x00000000010D1000-memory.dmpFilesize
4KB
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memory/1748-7-0x00000000745C0000-0x0000000074CAE000-memory.dmpFilesize
6.9MB
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memory/1748-4-0x0000000000000000-mapping.dmp
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memory/2044-26-0x0000000000000000-mapping.dmp