4bd8ca7a186343d59945c7258608115dceecb2da70ee94391774ff5f3f6e189f

Analysis

max time kernel
150s
max time network
149s
platform
windows10_x64
resource
win10v20210410
submitted
05/05/2021, 08:08

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
399a5bb2_by_Libranalysis.exe
Size 749KB
Sample210505-rmn11aml5j
SHA256 4bd8ca7a186343d59945c7258608115dceecb2da70ee94391774ff5f3f6e189f
MD5 399a5bb2c92b73c1bdabb0307ca24ee5
SHA1 3ee0dc50a5b1ada2d90b6a96776934d91758491c
SHA512 b60e72c7eac0527ff51a8ba355955114d4c59f492c6f0aca2e87798f025c0b46d0273da4bf0260a7a02edc7974f39abd895b935ddebe4d242ecf633b9a3a8e5c
MD5 SHA1 SHA512

Score

10^/10

evasion persistence spyware stealer trojan

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\sUkQwkoQ\\XeIAocIo.exe,"	399a5bb2_by_Libranalysis.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\ProgramData\\sUkQwkoQ\\XeIAocIo.exe,"	399a5bb2_by_Libranalysis.exe

Modifies visibility of file extensions in Explorer 2 TTPs
evasion

Hidden Files and Directories
T1158

Modify Registry
T1112
UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Executes dropped EXE 4 IoCs

pid	Process
1664	rukoQEUA.exe
2544	XeIAocIo.exe
2076	JUEMEYcs.exe
2504	chocolatey.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\International\Geo\Nation	XeIAocIo.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XeIAocIo.exe = "C:\\ProgramData\\sUkQwkoQ\\XeIAocIo.exe"	JUEMEYcs.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\rukoQEUA.exe = "C:\\Users\\Admin\\IOYAgssA\\rukoQEUA.exe"	399a5bb2_by_Libranalysis.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\rukoQEUA.exe = "C:\\Users\\Admin\\IOYAgssA\\rukoQEUA.exe"	rukoQEUA.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XeIAocIo.exe = "C:\\ProgramData\\sUkQwkoQ\\XeIAocIo.exe"	399a5bb2_by_Libranalysis.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XeIAocIo.exe = "C:\\ProgramData\\sUkQwkoQ\\XeIAocIo.exe"	XeIAocIo.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\shell32.dll.exe	XeIAocIo.exe
File opened for modification	C:\Windows\SysWOW64\sheFindUndo.bmp	XeIAocIo.exe
File opened for modification	C:\Windows\SysWOW64\sheMoveTest.zip	XeIAocIo.exe
File opened for modification	C:\Windows\SysWOW64\sheUndoClose.wma	XeIAocIo.exe
File opened for modification	C:\Windows\SysWOW64\sheUpdateExpand.rar	XeIAocIo.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\IOYAgssA	JUEMEYcs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\IOYAgssA\rukoQEUA	JUEMEYcs.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
2692	reg.exe
2528	reg.exe
2884	reg.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2256	399a5bb2_by_Libranalysis.exe
2256	399a5bb2_by_Libranalysis.exe
2256	399a5bb2_by_Libranalysis.exe
2256	399a5bb2_by_Libranalysis.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2544	XeIAocIo.exe

Suspicious use of FindShellTrayWindow 64 IoCs

pid	Process
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe
2544	XeIAocIo.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 1664	2256	399a5bb2_by_Libranalysis.exe	74
PID 2256 wrote to memory of 1664	2256	399a5bb2_by_Libranalysis.exe	74
PID 2256 wrote to memory of 1664	2256	399a5bb2_by_Libranalysis.exe	74
PID 2256 wrote to memory of 2544	2256	399a5bb2_by_Libranalysis.exe	76
PID 2256 wrote to memory of 2544	2256	399a5bb2_by_Libranalysis.exe	76
PID 2256 wrote to memory of 2544	2256	399a5bb2_by_Libranalysis.exe	76
PID 2256 wrote to memory of 2172	2256	399a5bb2_by_Libranalysis.exe	78
PID 2256 wrote to memory of 2172	2256	399a5bb2_by_Libranalysis.exe	78
PID 2256 wrote to memory of 2172	2256	399a5bb2_by_Libranalysis.exe	78
PID 2172 wrote to memory of 2504	2172	cmd.exe	80
PID 2172 wrote to memory of 2504	2172	cmd.exe	80
PID 2256 wrote to memory of 2528	2256	399a5bb2_by_Libranalysis.exe	81
PID 2256 wrote to memory of 2528	2256	399a5bb2_by_Libranalysis.exe	81
PID 2256 wrote to memory of 2528	2256	399a5bb2_by_Libranalysis.exe	81
PID 2256 wrote to memory of 2692	2256	399a5bb2_by_Libranalysis.exe	86
PID 2256 wrote to memory of 2692	2256	399a5bb2_by_Libranalysis.exe	86
PID 2256 wrote to memory of 2692	2256	399a5bb2_by_Libranalysis.exe	86
PID 2256 wrote to memory of 2884	2256	399a5bb2_by_Libranalysis.exe	82
PID 2256 wrote to memory of 2884	2256	399a5bb2_by_Libranalysis.exe	82
PID 2256 wrote to memory of 2884	2256	399a5bb2_by_Libranalysis.exe	82

C:\Users\Admin\AppData\Local\Temp\399a5bb2_by_Libranalysis.exe
"C:\Users\Admin\AppData\Local\Temp\399a5bb2_by_Libranalysis.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\IOYAgssA\rukoQEUA.exe
  "C:\Users\Admin\IOYAgssA\rukoQEUA.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:1664
- C:\ProgramData\sUkQwkoQ\XeIAocIo.exe
  "C:\ProgramData\sUkQwkoQ\XeIAocIo.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  PID:2544
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\chocolatey.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2172
- - C:\Users\Admin\AppData\Local\Temp\chocolatey.exe
    C:\Users\Admin\AppData\Local\Temp\chocolatey.exe
    3⤵
    - Executes dropped EXE
    PID:2504
- C:\Windows\SysWOW64\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v HideFileExt /t REG_DWORD /d 1
  2⤵
  - Modifies registry key
  PID:2528
- C:\Windows\SysWOW64\reg.exe
  reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /d 0 /t REG_DWORD /f
  2⤵
  - Modifies registry key
  PID:2884
- C:\Windows\SysWOW64\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v Hidden /t REG_DWORD /d 2
  2⤵
  - Modifies registry key
  PID:2692

C:\ProgramData\aIEoMUEQ\JUEMEYcs.exe
C:\ProgramData\aIEoMUEQ\JUEMEYcs.exe
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
PID:2076