Analysis
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max time kernel
30s -
max time network
27s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-11-2020 09:12
Static task
static1
Behavioral task
behavioral1
Sample
8fad7c49d2beb93eec738aaa54c9f9d0.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
8fad7c49d2beb93eec738aaa54c9f9d0.exe
Resource
win10v20201028
General
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Target
8fad7c49d2beb93eec738aaa54c9f9d0.exe
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Size
668KB
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MD5
8fad7c49d2beb93eec738aaa54c9f9d0
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SHA1
b00ffa527f48a7b4323ebf2bba31d6450b30c1d9
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SHA256
dc9fe75ae9a4b294880a7e28d39f15eeca4eee9996c9b4be425ffd0f9060f2ee
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SHA512
e366d308fa425481f061f602ccca088fd2bb21d8b3c341466a9d87eb3de2ba2994d3d7f349debba085284c131934c1c76efba608d4aecfecb327870389e29fc3
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/1804-18-0x00000000003D0000-0x00000000003F4000-memory.dmp family_redline behavioral1/memory/1804-19-0x0000000000440000-0x0000000000462000-memory.dmp family_redline behavioral1/memory/240-24-0x0000000003D00000-0x0000000003D24000-memory.dmp family_redline behavioral1/memory/240-25-0x00000000065C0000-0x00000000065E2000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
bestof.exebestofd.exepid process 1620 bestof.exe 240 bestofd.exe -
Loads dropped DLL 2 IoCs
Processes:
8fad7c49d2beb93eec738aaa54c9f9d0.exepid process 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe 1668 8fad7c49d2beb93eec738aaa54c9f9d0.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 1620 set thread context of 1804 1620 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:
8fad7c49d2beb93eec738aaa54c9f9d0.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 8fad7c49d2beb93eec738aaa54c9f9d0.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 8fad7c49d2beb93eec738aaa54c9f9d0.exe -
Processes:
8fad7c49d2beb93eec738aaa54c9f9d0.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 8fad7c49d2beb93eec738aaa54c9f9d0.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 8fad7c49d2beb93eec738aaa54c9f9d0.exe -
Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
AddInProcess32.exebestofd.exepid process 1804 AddInProcess32.exe 240 bestofd.exe 1804 AddInProcess32.exe 240 bestofd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
bestof.exeAddInProcess32.exebestofd.exedescription pid process Token: SeDebugPrivilege 1620 bestof.exe Token: SeDebugPrivilege 1804 AddInProcess32.exe Token: SeDebugPrivilege 240 bestofd.exe -
Suspicious use of WriteProcessMemory 34 IoCs
Processes:
8fad7c49d2beb93eec738aaa54c9f9d0.exebestof.exebestofd.execmd.exeAddInProcess32.execmd.exedescription pid process target process PID 1668 wrote to memory of 1620 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestof.exe PID 1668 wrote to memory of 1620 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestof.exe PID 1668 wrote to memory of 1620 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestof.exe PID 1668 wrote to memory of 1620 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestof.exe PID 1668 wrote to memory of 240 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestofd.exe PID 1668 wrote to memory of 240 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestofd.exe PID 1668 wrote to memory of 240 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestofd.exe PID 1668 wrote to memory of 240 1668 8fad7c49d2beb93eec738aaa54c9f9d0.exe bestofd.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 1620 wrote to memory of 1804 1620 bestof.exe AddInProcess32.exe PID 240 wrote to memory of 1604 240 bestofd.exe cmd.exe PID 240 wrote to memory of 1604 240 bestofd.exe cmd.exe PID 240 wrote to memory of 1604 240 bestofd.exe cmd.exe PID 240 wrote to memory of 1604 240 bestofd.exe cmd.exe PID 1604 wrote to memory of 520 1604 cmd.exe PING.EXE PID 1604 wrote to memory of 520 1604 cmd.exe PING.EXE PID 1604 wrote to memory of 520 1604 cmd.exe PING.EXE PID 1604 wrote to memory of 520 1604 cmd.exe PING.EXE PID 1804 wrote to memory of 1232 1804 AddInProcess32.exe cmd.exe PID 1804 wrote to memory of 1232 1804 AddInProcess32.exe cmd.exe PID 1804 wrote to memory of 1232 1804 AddInProcess32.exe cmd.exe PID 1804 wrote to memory of 1232 1804 AddInProcess32.exe cmd.exe PID 1232 wrote to memory of 1292 1232 cmd.exe PING.EXE PID 1232 wrote to memory of 1292 1232 cmd.exe PING.EXE PID 1232 wrote to memory of 1292 1232 cmd.exe PING.EXE PID 1232 wrote to memory of 1292 1232 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\8fad7c49d2beb93eec738aaa54c9f9d0.exe"C:\Users\Admin\AppData\Local\Temp\8fad7c49d2beb93eec738aaa54c9f9d0.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1620 -
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
PID:1804 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""4⤵
- Suspicious use of WriteProcessMemory
PID:1232 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 35⤵
- Runs ping.exe
PID:1292 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exebestofd.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:240 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:1604 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:520
Network
MITRE ATT&CK Enterprise 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/240-20-0x00000000024F9000-0x00000000024FA000-memory.dmpFilesize
4KB
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memory/240-23-0x00000000743A0000-0x0000000074A8E000-memory.dmpFilesize
6.9MB
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memory/240-22-0x0000000003D70000-0x0000000003D81000-memory.dmpFilesize
68KB
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memory/240-21-0x0000000003B60000-0x0000000003B71000-memory.dmpFilesize
68KB
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memory/240-11-0x0000000000000000-mapping.dmp
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memory/240-25-0x00000000065C0000-0x00000000065E2000-memory.dmpFilesize
136KB
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memory/240-24-0x0000000003D00000-0x0000000003D24000-memory.dmpFilesize
144KB
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memory/520-27-0x0000000000000000-mapping.dmp
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memory/1148-2-0x000007FEF6780000-0x000007FEF69FA000-memory.dmpFilesize
2.5MB
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memory/1232-28-0x0000000000000000-mapping.dmp
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memory/1292-29-0x0000000000000000-mapping.dmp
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memory/1604-26-0x0000000000000000-mapping.dmp
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memory/1620-7-0x00000000743A0000-0x0000000074A8E000-memory.dmpFilesize
6.9MB
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memory/1620-8-0x0000000000170000-0x0000000000171000-memory.dmpFilesize
4KB
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memory/1620-4-0x0000000000000000-mapping.dmp
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memory/1668-0-0x0000000002529000-0x000000000252A000-memory.dmpFilesize
4KB
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memory/1668-1-0x0000000003C90000-0x0000000003CA1000-memory.dmpFilesize
68KB
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memory/1804-19-0x0000000000440000-0x0000000000462000-memory.dmpFilesize
136KB
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memory/1804-18-0x00000000003D0000-0x00000000003F4000-memory.dmpFilesize
144KB
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memory/1804-17-0x00000000743A0000-0x0000000074A8E000-memory.dmpFilesize
6.9MB
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memory/1804-16-0x00000000020F0000-0x0000000002101000-memory.dmpFilesize
68KB
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memory/1804-15-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/1804-13-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/1804-14-0x000000000040CD2F-mapping.dmp