Analysis
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max time kernel
30s -
max time network
27s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-11-2020 09:15
Static task
static1
Behavioral task
behavioral1
Sample
c124c4991ef8209fb59cf06fc7b6fd89.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
c124c4991ef8209fb59cf06fc7b6fd89.exe
Resource
win10v20201028
General
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Target
c124c4991ef8209fb59cf06fc7b6fd89.exe
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Size
669KB
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MD5
c124c4991ef8209fb59cf06fc7b6fd89
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SHA1
da3cf2cf528793016d15ad9a69e64a66086c3a2e
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SHA256
0c870ab1638e4106f0c1b29649e9f00d527619b54dd39ced78bfed0d265c9eed
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SHA512
877f9d93f8a44c3315bd7df3dc5c6a9d5735026e68fb30f59e78b008267a33788ab8e9970c304e0418bb07a677598b17c51b6456e663914c80ba734e83027fdc
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/1956-18-0x0000000000520000-0x0000000000544000-memory.dmp family_redline behavioral1/memory/1956-19-0x0000000000560000-0x0000000000582000-memory.dmp family_redline behavioral1/memory/1032-24-0x00000000023A0000-0x00000000023C4000-memory.dmp family_redline behavioral1/memory/1032-25-0x0000000003CF0000-0x0000000003D12000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
bestof.exebestofd.exepid process 1456 bestof.exe 1032 bestofd.exe -
Loads dropped DLL 2 IoCs
Processes:
c124c4991ef8209fb59cf06fc7b6fd89.exepid process 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe 1004 c124c4991ef8209fb59cf06fc7b6fd89.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 10 ip-api.com 15 checkip.amazonaws.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bestof.exedescription pid process target process PID 1456 set thread context of 1956 1456 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:
c124c4991ef8209fb59cf06fc7b6fd89.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 c124c4991ef8209fb59cf06fc7b6fd89.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString c124c4991ef8209fb59cf06fc7b6fd89.exe -
Processes:
c124c4991ef8209fb59cf06fc7b6fd89.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 c124c4991ef8209fb59cf06fc7b6fd89.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 c124c4991ef8209fb59cf06fc7b6fd89.exe -
Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
bestofd.exeAddInProcess32.exepid process 1032 bestofd.exe 1956 AddInProcess32.exe 1956 AddInProcess32.exe 1032 bestofd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
bestof.exeAddInProcess32.exebestofd.exedescription pid process Token: SeDebugPrivilege 1456 bestof.exe Token: SeDebugPrivilege 1956 AddInProcess32.exe Token: SeDebugPrivilege 1032 bestofd.exe -
Suspicious use of WriteProcessMemory 34 IoCs
Processes:
c124c4991ef8209fb59cf06fc7b6fd89.exebestof.exebestofd.execmd.exeAddInProcess32.execmd.exedescription pid process target process PID 1004 wrote to memory of 1456 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestof.exe PID 1004 wrote to memory of 1456 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestof.exe PID 1004 wrote to memory of 1456 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestof.exe PID 1004 wrote to memory of 1456 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestof.exe PID 1004 wrote to memory of 1032 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestofd.exe PID 1004 wrote to memory of 1032 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestofd.exe PID 1004 wrote to memory of 1032 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestofd.exe PID 1004 wrote to memory of 1032 1004 c124c4991ef8209fb59cf06fc7b6fd89.exe bestofd.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1456 wrote to memory of 1956 1456 bestof.exe AddInProcess32.exe PID 1032 wrote to memory of 1084 1032 bestofd.exe cmd.exe PID 1032 wrote to memory of 1084 1032 bestofd.exe cmd.exe PID 1032 wrote to memory of 1084 1032 bestofd.exe cmd.exe PID 1032 wrote to memory of 1084 1032 bestofd.exe cmd.exe PID 1084 wrote to memory of 780 1084 cmd.exe PING.EXE PID 1084 wrote to memory of 780 1084 cmd.exe PING.EXE PID 1084 wrote to memory of 780 1084 cmd.exe PING.EXE PID 1084 wrote to memory of 780 1084 cmd.exe PING.EXE PID 1956 wrote to memory of 1112 1956 AddInProcess32.exe cmd.exe PID 1956 wrote to memory of 1112 1956 AddInProcess32.exe cmd.exe PID 1956 wrote to memory of 1112 1956 AddInProcess32.exe cmd.exe PID 1956 wrote to memory of 1112 1956 AddInProcess32.exe cmd.exe PID 1112 wrote to memory of 1564 1112 cmd.exe PING.EXE PID 1112 wrote to memory of 1564 1112 cmd.exe PING.EXE PID 1112 wrote to memory of 1564 1112 cmd.exe PING.EXE PID 1112 wrote to memory of 1564 1112 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\c124c4991ef8209fb59cf06fc7b6fd89.exe"C:\Users\Admin\AppData\Local\Temp\c124c4991ef8209fb59cf06fc7b6fd89.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
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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/780-28-0x0000000000000000-mapping.dmp
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memory/1004-0-0x00000000002C9000-0x00000000002CA000-memory.dmpFilesize
4KB
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memory/1004-1-0x0000000003D70000-0x0000000003D81000-memory.dmpFilesize
68KB
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memory/1032-20-0x0000000002419000-0x000000000241A000-memory.dmpFilesize
4KB
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memory/1032-11-0x0000000000000000-mapping.dmp
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memory/1032-25-0x0000000003CF0000-0x0000000003D12000-memory.dmpFilesize
136KB
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memory/1032-24-0x00000000023A0000-0x00000000023C4000-memory.dmpFilesize
144KB
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memory/1032-23-0x0000000073A60000-0x000000007414E000-memory.dmpFilesize
6.9MB
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memory/1032-22-0x0000000003EF0000-0x0000000003F01000-memory.dmpFilesize
68KB
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memory/1032-21-0x0000000003D30000-0x0000000003D41000-memory.dmpFilesize
68KB
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memory/1084-26-0x0000000000000000-mapping.dmp
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memory/1112-29-0x0000000000000000-mapping.dmp
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memory/1316-2-0x000007FEF7160000-0x000007FEF73DA000-memory.dmpFilesize
2.5MB
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memory/1456-7-0x0000000073AB0000-0x000000007419E000-memory.dmpFilesize
6.9MB
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memory/1456-8-0x0000000001190000-0x0000000001191000-memory.dmpFilesize
4KB
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memory/1456-4-0x0000000000000000-mapping.dmp
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memory/1564-31-0x0000000000000000-mapping.dmp
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memory/1956-19-0x0000000000560000-0x0000000000582000-memory.dmpFilesize
136KB
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memory/1956-18-0x0000000000520000-0x0000000000544000-memory.dmpFilesize
144KB
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memory/1956-17-0x0000000073A60000-0x000000007414E000-memory.dmpFilesize
6.9MB
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memory/1956-16-0x0000000000B70000-0x0000000000B81000-memory.dmpFilesize
68KB
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memory/1956-15-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/1956-14-0x000000000040CD2F-mapping.dmp
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memory/1956-13-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB