Analysis
- max time kernel
149s - max time network
146s - platform
windows10_x64 - resource
win10v200430 - submitted
26/06/2020, 07:03
Static task
static1
Behavioral task
behavioral1
Sample
Yceuqvs.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Yceuqvs.exe
Resource
win10v200430
windows10_x64
0 signatures
0 seconds
General
- Target Yceuqvs.exe
- Size 924KB
- Sample200626-27a59cdq6j
- SHA256 40e20cc321623df3271e2ea7cbe75f647096a8a30737d21d0ef8ddbdc33a7f49
- MD5 97f87622e4196909824e884ee7d7c0ae
- SHA1 99ee116f87627709feee36edd6f6f4043beb2f08
- SHA512 4844b3058d2b871e1f490f4d7a43ea88933922f19c881968aa25cc4ca706c70ed8847be107471bd51d5cdd5766a53ad7ca0d143f93ab2d136a97387e5eb7108d
- MD5 SHA1 SHA512
Score
7/10
Malware Config
Signatures
- Suspicious behavior: EnumeratesProcesses 52 IoCs
pid Process 1472 ieinstal.exe 1472 ieinstal.exe 1472 ieinstal.exe 1472 ieinstal.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe - Suspicious behavior: MapViewOfSection 7 IoCs
pid Process 1472 ieinstal.exe 1472 ieinstal.exe 1472 ieinstal.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe 1632 rundll32.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3008 wrote to memory of 1472 3008 Yceuqvs.exe 68 PID 3008 wrote to memory of 1472 3008 Yceuqvs.exe 68 PID 3008 wrote to memory of 1472 3008 Yceuqvs.exe 68 PID 3008 wrote to memory of 1472 3008 Yceuqvs.exe 68 PID 3008 wrote to memory of 1472 3008 Yceuqvs.exe 68 PID 3008 wrote to memory of 1472 3008 Yceuqvs.exe 68 PID 2984 wrote to memory of 1632 2984 Explorer.EXE 69 PID 2984 wrote to memory of 1632 2984 Explorer.EXE 69 PID 2984 wrote to memory of 1632 2984 Explorer.EXE 69 PID 1632 wrote to memory of 1920 1632 rundll32.exe 70 PID 1632 wrote to memory of 1920 1632 rundll32.exe 70 PID 1632 wrote to memory of 1920 1632 rundll32.exe 70 PID 1632 wrote to memory of 3480 1632 rundll32.exe 75 PID 1632 wrote to memory of 3480 1632 rundll32.exe 75 PID 1632 wrote to memory of 3480 1632 rundll32.exe 75 - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1472 ieinstal.exe Token: SeDebugPrivilege 1632 rundll32.exe Token: SeShutdownPrivilege 2984 Explorer.EXE Token: SeCreatePagefilePrivilege 2984 Explorer.EXE Token: SeShutdownPrivilege 2984 Explorer.EXE Token: SeCreatePagefilePrivilege 2984 Explorer.EXE Token: SeShutdownPrivilege 2984 Explorer.EXE Token: SeCreatePagefilePrivilege 2984 Explorer.EXE Token: SeShutdownPrivilege 2984 Explorer.EXE Token: SeCreatePagefilePrivilege 2984 Explorer.EXE Token: SeShutdownPrivilege 2984 Explorer.EXE Token: SeCreatePagefilePrivilege 2984 Explorer.EXE - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1472 set thread context of 2984 1472 ieinstal.exe 56 PID 1632 set thread context of 2984 1632 rundll32.exe 56 - Adds Run entry to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yceu = "C:\\Users\\Admin\\AppData\\Local\\Yceu\\Yceu.hta" Yceuqvs.exe -
description ioc Process Key created \Registry\User\S-1-5-21-1231583446-2617009595-2137880041-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 rundll32.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
PID:2984 -
C:\Users\Admin\AppData\Local\Temp\Yceuqvs.exe"C:\Users\Admin\AppData\Local\Temp\Yceuqvs.exe"2⤵
- Suspicious use of WriteProcessMemory
- Adds Run entry to start application
PID:3008 -
C:\Program Files (x86)\internet explorer\ieinstal.exe"C:\Program Files (x86)\internet explorer\ieinstal.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetThreadContext
PID:1472
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
PID:1632 -
C:\Windows\SysWOW64\cmd.exe/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V3⤵PID:1920
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:3480
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