Analysis
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max time kernel
32s -
max time network
31s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-11-2020 09:10
Static task
static1
Behavioral task
behavioral1
Sample
f2fc44321ad998ffcebf1e4b8b1b8252.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
f2fc44321ad998ffcebf1e4b8b1b8252.exe
Resource
win10v20201028
General
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Target
f2fc44321ad998ffcebf1e4b8b1b8252.exe
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Size
667KB
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MD5
f2fc44321ad998ffcebf1e4b8b1b8252
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SHA1
dd09dbd421cd64791f87e3a9ba912d85e8421f2b
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SHA256
50c00ba4f97272838fbad92ea5f192ca154da696fb0691b1b730c025c930776f
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SHA512
e9250a80cd3e51558a09b61eb396cf2803a59d56f5d4fedc11ada1b0f5b2771166002dff52d34700b726571c1b01acdbe7e019b266db431ab10fd4ab4548c2ec
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/1380-18-0x00000000002E0000-0x0000000000304000-memory.dmp family_redline behavioral1/memory/1380-19-0x0000000000440000-0x0000000000462000-memory.dmp family_redline behavioral1/memory/1804-24-0x0000000002450000-0x0000000002474000-memory.dmp family_redline behavioral1/memory/1804-25-0x0000000003E30000-0x0000000003E52000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
bestof.exebestofd.exepid process 780 bestof.exe 1804 bestofd.exe -
Loads dropped DLL 2 IoCs
Processes:
f2fc44321ad998ffcebf1e4b8b1b8252.exepid process 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe 1032 f2fc44321ad998ffcebf1e4b8b1b8252.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 9 ip-api.com 16 checkip.amazonaws.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bestof.exedescription pid process target process PID 780 set thread context of 1380 780 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:
f2fc44321ad998ffcebf1e4b8b1b8252.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f2fc44321ad998ffcebf1e4b8b1b8252.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f2fc44321ad998ffcebf1e4b8b1b8252.exe -
Processes:
f2fc44321ad998ffcebf1e4b8b1b8252.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 f2fc44321ad998ffcebf1e4b8b1b8252.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 f2fc44321ad998ffcebf1e4b8b1b8252.exe -
Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
AddInProcess32.exebestofd.exepid process 1380 AddInProcess32.exe 1380 AddInProcess32.exe 1804 bestofd.exe 1804 bestofd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
bestof.exeAddInProcess32.exebestofd.exedescription pid process Token: SeDebugPrivilege 780 bestof.exe Token: SeDebugPrivilege 1380 AddInProcess32.exe Token: SeDebugPrivilege 1804 bestofd.exe -
Suspicious use of WriteProcessMemory 34 IoCs
Processes:
f2fc44321ad998ffcebf1e4b8b1b8252.exebestof.exeAddInProcess32.execmd.exebestofd.execmd.exedescription pid process target process PID 1032 wrote to memory of 780 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestof.exe PID 1032 wrote to memory of 780 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestof.exe PID 1032 wrote to memory of 780 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestof.exe PID 1032 wrote to memory of 780 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestof.exe PID 1032 wrote to memory of 1804 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestofd.exe PID 1032 wrote to memory of 1804 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestofd.exe PID 1032 wrote to memory of 1804 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestofd.exe PID 1032 wrote to memory of 1804 1032 f2fc44321ad998ffcebf1e4b8b1b8252.exe bestofd.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 780 wrote to memory of 1380 780 bestof.exe AddInProcess32.exe PID 1380 wrote to memory of 1264 1380 AddInProcess32.exe cmd.exe PID 1380 wrote to memory of 1264 1380 AddInProcess32.exe cmd.exe PID 1380 wrote to memory of 1264 1380 AddInProcess32.exe cmd.exe PID 1380 wrote to memory of 1264 1380 AddInProcess32.exe cmd.exe PID 1264 wrote to memory of 268 1264 cmd.exe PING.EXE PID 1264 wrote to memory of 268 1264 cmd.exe PING.EXE PID 1264 wrote to memory of 268 1264 cmd.exe PING.EXE PID 1264 wrote to memory of 268 1264 cmd.exe PING.EXE PID 1804 wrote to memory of 1012 1804 bestofd.exe cmd.exe PID 1804 wrote to memory of 1012 1804 bestofd.exe cmd.exe PID 1804 wrote to memory of 1012 1804 bestofd.exe cmd.exe PID 1804 wrote to memory of 1012 1804 bestofd.exe cmd.exe PID 1012 wrote to memory of 976 1012 cmd.exe PING.EXE PID 1012 wrote to memory of 976 1012 cmd.exe PING.EXE PID 1012 wrote to memory of 976 1012 cmd.exe PING.EXE PID 1012 wrote to memory of 976 1012 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\f2fc44321ad998ffcebf1e4b8b1b8252.exe"C:\Users\Admin\AppData\Local\Temp\f2fc44321ad998ffcebf1e4b8b1b8252.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/268-27-0x0000000000000000-mapping.dmp
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memory/780-4-0x0000000000000000-mapping.dmp
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memory/780-7-0x0000000073FC0000-0x00000000746AE000-memory.dmpFilesize
6.9MB
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memory/780-8-0x0000000001130000-0x0000000001131000-memory.dmpFilesize
4KB
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memory/976-29-0x0000000000000000-mapping.dmp
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memory/1012-28-0x0000000000000000-mapping.dmp
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memory/1016-2-0x000007FEF6380000-0x000007FEF65FA000-memory.dmpFilesize
2.5MB
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memory/1032-1-0x00000000027A0000-0x00000000027B1000-memory.dmpFilesize
68KB
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memory/1032-0-0x00000000024B4000-0x00000000024C5000-memory.dmpFilesize
68KB
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memory/1264-26-0x0000000000000000-mapping.dmp
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memory/1380-15-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/1380-16-0x0000000002030000-0x0000000002041000-memory.dmpFilesize
68KB
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memory/1380-18-0x00000000002E0000-0x0000000000304000-memory.dmpFilesize
144KB
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memory/1380-19-0x0000000000440000-0x0000000000462000-memory.dmpFilesize
136KB
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memory/1380-17-0x00000000733B0000-0x0000000073A9E000-memory.dmpFilesize
6.9MB
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memory/1380-13-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/1380-14-0x000000000040CD2F-mapping.dmp
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memory/1804-20-0x00000000002C9000-0x00000000002CA000-memory.dmpFilesize
4KB
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memory/1804-24-0x0000000002450000-0x0000000002474000-memory.dmpFilesize
144KB
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memory/1804-25-0x0000000003E30000-0x0000000003E52000-memory.dmpFilesize
136KB
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memory/1804-23-0x00000000733B0000-0x0000000073A9E000-memory.dmpFilesize
6.9MB
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memory/1804-22-0x0000000003EA0000-0x0000000003EB1000-memory.dmpFilesize
68KB
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memory/1804-21-0x0000000003BB0000-0x0000000003BC1000-memory.dmpFilesize
68KB
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memory/1804-11-0x0000000000000000-mapping.dmp