Analysis
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max time kernel
150s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
28-11-2022 04:26
Static task
static1
Behavioral task
behavioral1
Sample
c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe
Resource
win10v2004-20220812-en
General
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Target
c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe
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Size
769KB
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MD5
74bef16e3abdf32b2f9dddf7fc5b94f3
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SHA1
295042c167b278733b10b8f7ba1cb939bff3cb38
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SHA256
c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5
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SHA512
6427d80196e1673f0fef1ff2e3b1737554ec7bae4ce0de7587ba1bc01e94fcdaabb539ad07420edaefbd5141bbf67aee3e8a05e9ec38a8cba30d4875f34e72f2
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SSDEEP
12288:i++pDu9YrDQKiXEfiVzhY1Iys0P9ckDveteS3HSo+XX73QcFW+I1GKhfaNtR:iz0sDNiUfiPgI91kDveYOHSo+nfI1Pw/
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\avzkamyv = "\"C:\\Windows\\ydacexlc.exe\"" explorer.exe -
Processes:
c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exec5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exedescription pid process target process PID 1424 set thread context of 544 1424 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe PID 544 set thread context of 1252 544 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe explorer.exe -
Drops file in Windows directory 2 IoCs
Processes:
explorer.exedescription ioc process File opened for modification C:\Windows\ydacexlc.exe explorer.exe File created C:\Windows\ydacexlc.exe explorer.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 788 vssadmin.exe -
Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0" explorer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 876 vssvc.exe Token: SeRestorePrivilege 876 vssvc.exe Token: SeAuditPrivilege 876 vssvc.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exec5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exeexplorer.exedescription pid process target process PID 1424 wrote to memory of 544 1424 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe PID 1424 wrote to memory of 544 1424 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe PID 1424 wrote to memory of 544 1424 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe PID 1424 wrote to memory of 544 1424 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe PID 1424 wrote to memory of 544 1424 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe PID 1424 wrote to memory of 544 1424 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe PID 544 wrote to memory of 1252 544 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe explorer.exe PID 544 wrote to memory of 1252 544 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe explorer.exe PID 544 wrote to memory of 1252 544 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe explorer.exe PID 544 wrote to memory of 1252 544 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe explorer.exe PID 544 wrote to memory of 1252 544 c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe explorer.exe PID 1252 wrote to memory of 788 1252 explorer.exe vssadmin.exe PID 1252 wrote to memory of 788 1252 explorer.exe vssadmin.exe PID 1252 wrote to memory of 788 1252 explorer.exe vssadmin.exe PID 1252 wrote to memory of 788 1252 explorer.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe"C:\Users\Admin\AppData\Local\Temp\c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe"C:\Users\Admin\AppData\Local\Temp\c5ae1b9cafaeb836145bf56a7b63029398779f703d8872bb93563791830db3b5.exe"2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\system32\explorer.exe"3⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies Internet Explorer Phishing Filter
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet4⤵
- Interacts with shadow copies
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\ProgramData\aduqeliginopicah\01000000Filesize
769KB
MD5033288aa44046ff49f0e205dc57fdd25
SHA190f2eb463b45621d21ff60edc58afcc5125fb6eb
SHA2567a8804b82d9ad6a87a6bb715646a5ec8b9b4d5c7d719485d7857603c05549cc6
SHA512c846dfb33f6ff05c4d963a5cc85147389fb995c69c25b300edd02f9771d58923c46933dee1c07bcc10450f823411c9409b4daae181b47a1471b0cba4ca04c362
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memory/544-72-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/544-55-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/544-58-0x000000000040A61E-mapping.dmp
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memory/544-59-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/544-62-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/544-63-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/788-73-0x0000000000000000-mapping.dmp
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memory/1252-68-0x00000000000DA140-mapping.dmp
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memory/1252-64-0x00000000000C0000-0x00000000000FC000-memory.dmpFilesize
240KB
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memory/1252-70-0x0000000074DF1000-0x0000000074DF3000-memory.dmpFilesize
8KB
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memory/1252-66-0x00000000000C0000-0x00000000000FC000-memory.dmpFilesize
240KB
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memory/1252-74-0x00000000000C0000-0x00000000000FC000-memory.dmpFilesize
240KB
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memory/1252-75-0x0000000072951000-0x0000000072953000-memory.dmpFilesize
8KB
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memory/1424-60-0x0000000000240000-0x0000000000248000-memory.dmpFilesize
32KB
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memory/1424-54-0x0000000076151000-0x0000000076153000-memory.dmpFilesize
8KB