Analysis
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max time kernel
124s -
max time network
125s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-11-2020 09:12
Static task
static1
Behavioral task
behavioral1
Sample
71bac68eb27e02e20610cdc2098be85f.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
71bac68eb27e02e20610cdc2098be85f.exe
Resource
win10v20201028
General
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Target
71bac68eb27e02e20610cdc2098be85f.exe
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Size
667KB
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MD5
71bac68eb27e02e20610cdc2098be85f
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SHA1
ec7446e7e3467cba4f93581d1dc1dc14dbc2abaa
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SHA256
3050e3feb871116d108140a8b0a82fb3b2a64b54148f7a49daaf3898c222d699
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SHA512
b298a76ecef5dc718f9db77ef63cfc2a5ab3dded8f3a9fa92dc81bfc8f7e9a39e729ae266a25452ec8961f5d21e49fe3236708582b75f08b302119a6ce33b3c6
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/664-18-0x0000000000220000-0x0000000000244000-memory.dmp family_redline behavioral1/memory/664-19-0x00000000003B0000-0x00000000003D2000-memory.dmp family_redline behavioral1/memory/936-24-0x0000000003B20000-0x0000000003B44000-memory.dmp family_redline behavioral1/memory/936-25-0x0000000003F10000-0x0000000003F32000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
bestof.exebestofd.exepid process 1740 bestof.exe 936 bestofd.exe -
Loads dropped DLL 2 IoCs
Processes:
71bac68eb27e02e20610cdc2098be85f.exepid process 788 71bac68eb27e02e20610cdc2098be85f.exe 788 71bac68eb27e02e20610cdc2098be85f.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 17 checkip.amazonaws.com 10 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bestof.exedescription pid process target process PID 1740 set thread context of 664 1740 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:
71bac68eb27e02e20610cdc2098be85f.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 71bac68eb27e02e20610cdc2098be85f.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 71bac68eb27e02e20610cdc2098be85f.exe -
Processes:
71bac68eb27e02e20610cdc2098be85f.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 71bac68eb27e02e20610cdc2098be85f.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 71bac68eb27e02e20610cdc2098be85f.exe -
Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
AddInProcess32.exebestofd.exepid process 664 AddInProcess32.exe 936 bestofd.exe 664 AddInProcess32.exe 936 bestofd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
bestof.exeAddInProcess32.exebestofd.exedescription pid process Token: SeDebugPrivilege 1740 bestof.exe Token: SeDebugPrivilege 664 AddInProcess32.exe Token: SeDebugPrivilege 936 bestofd.exe -
Suspicious use of WriteProcessMemory 34 IoCs
Processes:
71bac68eb27e02e20610cdc2098be85f.exebestof.exeAddInProcess32.execmd.exebestofd.execmd.exedescription pid process target process PID 788 wrote to memory of 1740 788 71bac68eb27e02e20610cdc2098be85f.exe bestof.exe PID 788 wrote to memory of 1740 788 71bac68eb27e02e20610cdc2098be85f.exe bestof.exe PID 788 wrote to memory of 1740 788 71bac68eb27e02e20610cdc2098be85f.exe bestof.exe PID 788 wrote to memory of 1740 788 71bac68eb27e02e20610cdc2098be85f.exe bestof.exe PID 788 wrote to memory of 936 788 71bac68eb27e02e20610cdc2098be85f.exe bestofd.exe PID 788 wrote to memory of 936 788 71bac68eb27e02e20610cdc2098be85f.exe bestofd.exe PID 788 wrote to memory of 936 788 71bac68eb27e02e20610cdc2098be85f.exe bestofd.exe PID 788 wrote to memory of 936 788 71bac68eb27e02e20610cdc2098be85f.exe bestofd.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 1740 wrote to memory of 664 1740 bestof.exe AddInProcess32.exe PID 664 wrote to memory of 1472 664 AddInProcess32.exe cmd.exe PID 664 wrote to memory of 1472 664 AddInProcess32.exe cmd.exe PID 664 wrote to memory of 1472 664 AddInProcess32.exe cmd.exe PID 664 wrote to memory of 1472 664 AddInProcess32.exe cmd.exe PID 1472 wrote to memory of 436 1472 cmd.exe PING.EXE PID 1472 wrote to memory of 436 1472 cmd.exe PING.EXE PID 1472 wrote to memory of 436 1472 cmd.exe PING.EXE PID 1472 wrote to memory of 436 1472 cmd.exe PING.EXE PID 936 wrote to memory of 1180 936 bestofd.exe cmd.exe PID 936 wrote to memory of 1180 936 bestofd.exe cmd.exe PID 936 wrote to memory of 1180 936 bestofd.exe cmd.exe PID 936 wrote to memory of 1180 936 bestofd.exe cmd.exe PID 1180 wrote to memory of 1852 1180 cmd.exe PING.EXE PID 1180 wrote to memory of 1852 1180 cmd.exe PING.EXE PID 1180 wrote to memory of 1852 1180 cmd.exe PING.EXE PID 1180 wrote to memory of 1852 1180 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\71bac68eb27e02e20610cdc2098be85f.exe"C:\Users\Admin\AppData\Local\Temp\71bac68eb27e02e20610cdc2098be85f.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/436-27-0x0000000000000000-mapping.dmp
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memory/664-16-0x0000000002110000-0x0000000002121000-memory.dmpFilesize
68KB
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memory/664-19-0x00000000003B0000-0x00000000003D2000-memory.dmpFilesize
136KB
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memory/664-18-0x0000000000220000-0x0000000000244000-memory.dmpFilesize
144KB
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memory/664-17-0x0000000074070000-0x000000007475E000-memory.dmpFilesize
6.9MB
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memory/664-13-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/664-14-0x000000000040CD2F-mapping.dmp
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memory/664-15-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/788-0-0x0000000002454000-0x0000000002465000-memory.dmpFilesize
68KB
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memory/788-1-0x0000000002540000-0x0000000002551000-memory.dmpFilesize
68KB
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memory/936-22-0x0000000003DF0000-0x0000000003E01000-memory.dmpFilesize
68KB
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memory/936-23-0x0000000074070000-0x000000007475E000-memory.dmpFilesize
6.9MB
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memory/936-25-0x0000000003F10000-0x0000000003F32000-memory.dmpFilesize
136KB
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memory/936-24-0x0000000003B20000-0x0000000003B44000-memory.dmpFilesize
144KB
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memory/936-20-0x00000000002A9000-0x00000000002AA000-memory.dmpFilesize
4KB
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memory/936-21-0x0000000003BF0000-0x0000000003C01000-memory.dmpFilesize
68KB
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memory/936-11-0x0000000000000000-mapping.dmp
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memory/1180-28-0x0000000000000000-mapping.dmp
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memory/1472-26-0x0000000000000000-mapping.dmp
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memory/1536-2-0x000007FEF7730000-0x000007FEF79AA000-memory.dmpFilesize
2.5MB
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memory/1740-4-0x0000000000000000-mapping.dmp
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memory/1740-7-0x0000000074070000-0x000000007475E000-memory.dmpFilesize
6.9MB
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memory/1740-8-0x0000000000DE0000-0x0000000000DE1000-memory.dmpFilesize
4KB
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memory/1852-29-0x0000000000000000-mapping.dmp