Analysis
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max time kernel
14s -
max time network
143s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
15-03-2021 19:14
Static task
static1
Behavioral task
behavioral1
Sample
BBSEMXMXXX01098210315.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
BBSEMXMXXX01098210315.exe
Resource
win10v20201028
General
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Target
BBSEMXMXXX01098210315.exe
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Size
222KB
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MD5
7c6e6a3972fcd89ba074f78f27402531
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SHA1
46cd5b29880a457bd0a829ebb4a808e7d426eae2
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SHA256
3fa22ad54a485ad705fe5a71384a7002dedff621edfb81b4c4d71528407c879f
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SHA512
c55c275ff4fd4a43cf03dfc2de49da69baa439083e29257cf5447592bde51842a1c7b0877b44821f2f2221aae27473e5c7ee391c1baf452b9cba51f99634deb0
Malware Config
Extracted
xpertrat
3.0.10
windows shealth
79.134.225.77:7070
C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337
Signatures
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XpertRAT Core Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2756-6-0x0000000000400000-0x0000000000443000-memory.dmp xpertrat behavioral2/memory/2756-7-0x0000000000401364-mapping.dmp xpertrat -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/192-21-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/192-22-0x0000000000411654-mapping.dmp MailPassView -
NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/2724-26-0x0000000000400000-0x0000000000459000-memory.dmp WebBrowserPassView behavioral2/memory/2724-27-0x0000000000442F04-mapping.dmp WebBrowserPassView -
Nirsoft 6 IoCs
Processes:
resource yara_rule behavioral2/memory/192-21-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/192-22-0x0000000000411654-mapping.dmp Nirsoft behavioral2/memory/2724-26-0x0000000000400000-0x0000000000459000-memory.dmp Nirsoft behavioral2/memory/2724-27-0x0000000000442F04-mapping.dmp Nirsoft behavioral2/memory/3780-31-0x0000000000400000-0x0000000000415000-memory.dmp Nirsoft behavioral2/memory/3780-32-0x000000000040C2A8-mapping.dmp Nirsoft -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337 = "C:\\Users\\Admin\\AppData\\Roaming\\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337.exe" iexplore.exe -
Processes:
resource yara_rule behavioral2/memory/1208-19-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral2/memory/3144-29-0x0000000000400000-0x0000000000416000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 3792 notepad.exe -
Loads dropped DLL 1 IoCs
Processes:
BBSEMXMXXX01098210315.exepid process 3636 BBSEMXMXXX01098210315.exe -
Processes:
BBSEMXMXXX01098210315.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" BBSEMXMXXX01098210315.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337 = "C:\\Users\\Admin\\AppData\\Roaming\\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337.exe" iexplore.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337 = "C:\\Users\\Admin\\AppData\\Roaming\\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337.exe" iexplore.exe -
Processes:
BBSEMXMXXX01098210315.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" BBSEMXMXXX01098210315.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3364 2364 WerFault.exe iexplore.exe -
Suspicious use of SetThreadContext 8 IoCs
Processes:
BBSEMXMXXX01098210315.exeBBSEMXMXXX01098210315.exeiexplore.exedescription pid process target process PID 3636 set thread context of 2344 3636 BBSEMXMXXX01098210315.exe BBSEMXMXXX01098210315.exe PID 2344 set thread context of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2756 set thread context of 1208 2756 iexplore.exe iexplore.exe PID 2756 set thread context of 192 2756 iexplore.exe iexplore.exe PID 2756 set thread context of 2364 2756 iexplore.exe iexplore.exe PID 2756 set thread context of 2724 2756 iexplore.exe iexplore.exe PID 2756 set thread context of 3144 2756 iexplore.exe iexplore.exe PID 2756 set thread context of 3780 2756 iexplore.exe iexplore.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
BBSEMXMXXX01098210315.exeBBSEMXMXXX01098210315.exeiexplore.exeiexplore.exepid process 3636 BBSEMXMXXX01098210315.exe 3636 BBSEMXMXXX01098210315.exe 3636 BBSEMXMXXX01098210315.exe 3636 BBSEMXMXXX01098210315.exe 3636 BBSEMXMXXX01098210315.exe 3636 BBSEMXMXXX01098210315.exe 3636 BBSEMXMXXX01098210315.exe 3636 BBSEMXMXXX01098210315.exe 2344 BBSEMXMXXX01098210315.exe 2344 BBSEMXMXXX01098210315.exe 1208 iexplore.exe 1208 iexplore.exe 2344 BBSEMXMXXX01098210315.exe 2344 BBSEMXMXXX01098210315.exe 2724 iexplore.exe 2724 iexplore.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
BBSEMXMXXX01098210315.exepid process 3636 BBSEMXMXXX01098210315.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
iexplore.exeiexplore.exedescription pid process Token: SeDebugPrivilege 2756 iexplore.exe Token: SeDebugPrivilege 1208 iexplore.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
BBSEMXMXXX01098210315.exeiexplore.exepid process 2344 BBSEMXMXXX01098210315.exe 2756 iexplore.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
BBSEMXMXXX01098210315.exeBBSEMXMXXX01098210315.exeiexplore.exedescription pid process target process PID 3636 wrote to memory of 2344 3636 BBSEMXMXXX01098210315.exe BBSEMXMXXX01098210315.exe PID 3636 wrote to memory of 2344 3636 BBSEMXMXXX01098210315.exe BBSEMXMXXX01098210315.exe PID 3636 wrote to memory of 2344 3636 BBSEMXMXXX01098210315.exe BBSEMXMXXX01098210315.exe PID 3636 wrote to memory of 2344 3636 BBSEMXMXXX01098210315.exe BBSEMXMXXX01098210315.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2344 wrote to memory of 2756 2344 BBSEMXMXXX01098210315.exe iexplore.exe PID 2756 wrote to memory of 3792 2756 iexplore.exe notepad.exe PID 2756 wrote to memory of 3792 2756 iexplore.exe notepad.exe PID 2756 wrote to memory of 3792 2756 iexplore.exe notepad.exe PID 2756 wrote to memory of 3792 2756 iexplore.exe notepad.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 1208 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 192 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2364 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 2724 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3144 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3780 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3780 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3780 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3780 2756 iexplore.exe iexplore.exe PID 2756 wrote to memory of 3780 2756 iexplore.exe iexplore.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
BBSEMXMXXX01098210315.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" BBSEMXMXXX01098210315.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\BBSEMXMXXX01098210315.exe"C:\Users\Admin\AppData\Local\Temp\BBSEMXMXXX01098210315.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\BBSEMXMXXX01098210315.exe"C:\Users\Admin\AppData\Local\Temp\BBSEMXMXXX01098210315.exe"2⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\BBSEMXMXXX01098210315.exe3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exenotepad.exe4⤵
- Deletes itself
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq0.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq1.txt"4⤵
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq2.txt"4⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 925⤵
- Program crash
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq2.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq3.txt"4⤵
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq4.txt"4⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq2.txtMD5
f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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C:\Users\Admin\AppData\Roaming\C2H6Y3K1-A7X5-B5F3-N3W1-K4A558N0M337\diapsomyq4.txtMD5
f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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\Users\Admin\AppData\Local\Temp\nsp2C19.tmp\gyd3q1zqsxk3.dllMD5
f793e0e7221f0bece3146b5e4612c0f8
SHA141709207d0a572d986df045a73d2e24326769a8c
SHA256b3eb439e91e45fcb7dab2785b2d5a08d1c0c035af46c0f73ec3a09d34a069145
SHA51239d323eb46aa5bccce84b921171448269207d5d6ea821397de7465fb2ee1d94fe7f3dc5d06e175a25f4a7a3ec02cebd5e4636e2392f8791cb8878a7e0e5745c3
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memory/192-22-0x0000000000411654-mapping.dmp
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memory/192-21-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1208-19-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1208-20-0x0000000000423BC0-mapping.dmp
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memory/2344-11-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2344-3-0x00000000004010B8-mapping.dmp
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memory/2364-24-0x0000000000442F04-mapping.dmp
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memory/2724-26-0x0000000000400000-0x0000000000459000-memory.dmpFilesize
356KB
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memory/2724-27-0x0000000000442F04-mapping.dmp
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memory/2756-6-0x0000000000400000-0x0000000000443000-memory.dmpFilesize
268KB
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memory/2756-7-0x0000000000401364-mapping.dmp
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memory/2756-8-0x0000000003061000-0x000000000315D000-memory.dmpFilesize
1008KB
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memory/3144-29-0x0000000000400000-0x0000000000416000-memory.dmpFilesize
88KB
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memory/3144-30-0x0000000000413750-mapping.dmp
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memory/3364-25-0x0000000004900000-0x0000000004901000-memory.dmpFilesize
4KB
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memory/3780-31-0x0000000000400000-0x0000000000415000-memory.dmpFilesize
84KB
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memory/3780-32-0x000000000040C2A8-mapping.dmp
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memory/3792-12-0x0000000000000000-mapping.dmp