Analysis
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max time kernel
153s -
max time network
189s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
28-11-2022 04:26
Static task
static1
Behavioral task
behavioral1
Sample
4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe
Resource
win10v2004-20221111-en
General
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Target
4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe
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Size
766KB
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MD5
9b1da810487cdcb458d46f394f561fdb
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SHA1
b8fbf9babf7182cf7dd1e6039e4c2a072a4df70c
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SHA256
4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1
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SHA512
babbecf43d00e1cfe58b9b3d2895993624e62f136178f64616f43e49c1006dc9d64d6e2dcfa3b88434ad9b9790270aa063236deaaf92022d8b3ebeaa42efd7fc
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SSDEEP
12288:CH+pDu9YrDQKiXEfiVzhY1Iys0P9ckgveteiZLnfHSoGKmeVd8kyBwvBH4JVJ:Ce0sDNiUfiPgI91kgveYAHSoGoWeOVJ
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\gzizuvop = "\"C:\\Windows\\yqysexow.exe\"" explorer.exe -
Processes:
4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exedescription pid process target process PID 1988 set thread context of 1272 1988 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe PID 1272 set thread context of 1912 1272 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe explorer.exe -
Drops file in Windows directory 2 IoCs
Processes:
explorer.exedescription ioc process File opened for modification C:\Windows\yqysexow.exe explorer.exe File created C:\Windows\yqysexow.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 1768 vssadmin.exe -
Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs
Processes:
explorer.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0" explorer.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0" explorer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 1812 vssvc.exe Token: SeRestorePrivilege 1812 vssvc.exe Token: SeAuditPrivilege 1812 vssvc.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exeexplorer.exedescription pid process target process PID 1988 wrote to memory of 1272 1988 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe PID 1988 wrote to memory of 1272 1988 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe PID 1988 wrote to memory of 1272 1988 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe PID 1988 wrote to memory of 1272 1988 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe PID 1988 wrote to memory of 1272 1988 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe PID 1988 wrote to memory of 1272 1988 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe PID 1272 wrote to memory of 1912 1272 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe explorer.exe PID 1272 wrote to memory of 1912 1272 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe explorer.exe PID 1272 wrote to memory of 1912 1272 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe explorer.exe PID 1272 wrote to memory of 1912 1272 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe explorer.exe PID 1272 wrote to memory of 1912 1272 4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe explorer.exe PID 1912 wrote to memory of 1768 1912 explorer.exe vssadmin.exe PID 1912 wrote to memory of 1768 1912 explorer.exe vssadmin.exe PID 1912 wrote to memory of 1768 1912 explorer.exe vssadmin.exe PID 1912 wrote to memory of 1768 1912 explorer.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe"C:\Users\Admin\AppData\Local\Temp\4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.exe"C:\Users\Admin\AppData\Local\Temp\4b20937d2f09872bdb78359d0df30b554d514c7f2df07c4026f99c859b09d1f1.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
766KB
MD5b08099f62223f6fcb24b05adcbbc74ad
SHA1af92c74915e34d1d63d03783132d424848843de5
SHA256659aa6c68411cdbcfd6053ec3db63a4b3b2ceedeba3b21488b8690e3259d8e38
SHA5125dd58501fc459b0bd3d742a022cf5a10cfb8d3d699f8e1d7394ee3e217e8be25f9253cea61ad4978a76b0471c3e0f338a9ec06f19bdc402eefc84cd0b5a40e27
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memory/1272-72-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1272-59-0x000000000040A61E-mapping.dmp
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memory/1272-60-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1272-62-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1272-63-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1272-56-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1768-74-0x0000000000000000-mapping.dmp
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memory/1912-68-0x000000000009A140-mapping.dmp
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memory/1912-64-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/1912-70-0x0000000075091000-0x0000000075093000-memory.dmpFilesize
8KB
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memory/1912-73-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/1912-66-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/1912-75-0x0000000072C31000-0x0000000072C33000-memory.dmpFilesize
8KB
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memory/1988-55-0x0000000000240000-0x0000000000248000-memory.dmpFilesize
32KB
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memory/1988-54-0x0000000076651000-0x0000000076653000-memory.dmpFilesize
8KB