Analysis
- max time kernel
150s - max time network
149s - platform
windows7_x64 - resource
win7 - submitted
31/07/2020, 11:49
Static task
static1
Behavioral task
behavioral1
Sample
Confirmation Copy 11.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Confirmation Copy 11.exe
Resource
win10v200722
windows10_x64
0 signatures
0 seconds
General
- Target Confirmation Copy 11.exe
- Size 520KB
- Sample200731-823kfjmmm2
- SHA256 2ad4a02a1f907b8036b9bea0fd940bfb47435964b23ffae577080823c86500dd
- MD5 9d317210a5afb36bb85856718b96e1ef
- SHA1 e5cf4b696cb785b825322f84cf66c299c27f4068
- SHA512 5d67f53a63d1cd20af6073b16dff41d41922a0b680c041d52364c08528280a399851612cfb7190f96e5788e94eec7d967e53bb4643db06cc475f380a8e02deba
- MD5 SHA1 SHA512
Malware Config
Signatures
- Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 896 Confirmation Copy 11.exe 896 Confirmation Copy 11.exe 1076 Confirmation Copy 11.exe 1076 Confirmation Copy 11.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe - Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 896 set thread context of 1076 896 Confirmation Copy 11.exe 24 PID 1076 set thread context of 1276 1076 Confirmation Copy 11.exe 20 PID 1664 set thread context of 1276 1664 svchost.exe 20 - Suspicious behavior: MapViewOfSection 7 IoCs
pid Process 1076 Confirmation Copy 11.exe 1076 Confirmation Copy 11.exe 1076 Confirmation Copy 11.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe 1664 svchost.exe - Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Nohld5z\regsvczt80d.exe svchost.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 896 Confirmation Copy 11.exe Token: SeDebugPrivilege 1076 Confirmation Copy 11.exe Token: SeDebugPrivilege 1664 svchost.exe - Deletes itself 1 IoCs
pid Process 1848 cmd.exe - Suspicious use of FindShellTrayWindow 5 IoCs
pid Process 1276 Explorer.EXE 1276 Explorer.EXE 1276 Explorer.EXE 1276 Explorer.EXE 1276 Explorer.EXE - Suspicious use of SendNotifyMessage 4 IoCs
pid Process 1276 Explorer.EXE 1276 Explorer.EXE 1276 Explorer.EXE 1276 Explorer.EXE - Formbook Payload 4 IoCs
resource yara_rule behavioral1/memory/1076-3-0x0000000000400000-0x000000000042D000-memory.dmp formbook behavioral1/memory/1076-3-0x0000000000400000-0x000000000042D000-memory.dmp formbook behavioral1/memory/1076-4-0x000000000041E350-mapping.dmp formbook behavioral1/memory/1664-5-0x0000000000000000-mapping.dmp formbook - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AJLHZLEH = "C:\\Program Files (x86)\\Nohld5z\\regsvczt80d.exe" svchost.exe -
description ioc Process Key created \Registry\User\S-1-5-21-1131729243-447456001-3632642222-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 svchost.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 896 wrote to memory of 1076 896 Confirmation Copy 11.exe 24 PID 896 wrote to memory of 1076 896 Confirmation Copy 11.exe 24 PID 896 wrote to memory of 1076 896 Confirmation Copy 11.exe 24 PID 896 wrote to memory of 1076 896 Confirmation Copy 11.exe 24 PID 896 wrote to memory of 1076 896 Confirmation Copy 11.exe 24 PID 896 wrote to memory of 1076 896 Confirmation Copy 11.exe 24 PID 896 wrote to memory of 1076 896 Confirmation Copy 11.exe 24 PID 1276 wrote to memory of 1664 1276 Explorer.EXE 25 PID 1276 wrote to memory of 1664 1276 Explorer.EXE 25 PID 1276 wrote to memory of 1664 1276 Explorer.EXE 25 PID 1276 wrote to memory of 1664 1276 Explorer.EXE 25 PID 1664 wrote to memory of 1848 1664 svchost.exe 26 PID 1664 wrote to memory of 1848 1664 svchost.exe 26 PID 1664 wrote to memory of 1848 1664 svchost.exe 26 PID 1664 wrote to memory of 1848 1664 svchost.exe 26 PID 1664 wrote to memory of 1608 1664 svchost.exe 31 PID 1664 wrote to memory of 1608 1664 svchost.exe 31 PID 1664 wrote to memory of 1608 1664 svchost.exe 31 PID 1664 wrote to memory of 1608 1664 svchost.exe 31 PID 1664 wrote to memory of 1608 1664 svchost.exe 31 - 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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description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
- Checks whether UAC is enabled
PID:1276 -
C:\Users\Admin\AppData\Local\Temp\Confirmation Copy 11.exe"C:\Users\Admin\AppData\Local\Temp\Confirmation Copy 11.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:896 -
C:\Users\Admin\AppData\Local\Temp\Confirmation Copy 11.exe"{path}"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1076
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C:\Windows\SysWOW64\svchost.exe"C:\Windows\SysWOW64\svchost.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\Confirmation Copy 11.exe"3⤵
- Deletes itself
PID:1848
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:1608
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