Analysis
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max time kernel
147s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20250619-en -
resource tags
arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system -
submitted
01/07/2025, 07:21
Behavioral task
behavioral1
Sample
e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe
Resource
win10v2004-20250619-en
General
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Target
e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe
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Size
76KB
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MD5
ca96a8ebe967d7fb665d42f2e65a55d4
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SHA1
573948d09c43e86ba1672b1659814d4d074dda03
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SHA256
e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5
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SHA512
730fee4107d8de1b8dedd3ea163eca21ab97e7bd336812bfcc414f4d4ba634554924a26eeeb97e3c8c00a449d21877cf207c35c0e458a38915233d581ac8786b
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SSDEEP
1536:5L5lxcQxgr9BcXzfGQz0/m4QdQiWC378JztYtfBpf4p7WtX44:blSQxgr9eXzd4/mxKIm+t3JI4
Malware Config
Signatures
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Blocklisted process makes network request 15 IoCs
flow pid Process 1 3172 rundll32.exe 2 3172 rundll32.exe 3 3172 rundll32.exe 4 3172 rundll32.exe 5 3172 rundll32.exe 6 3172 rundll32.exe 7 3172 rundll32.exe 8 3172 rundll32.exe 9 3172 rundll32.exe 10 3172 rundll32.exe 11 3172 rundll32.exe 14 3172 rundll32.exe 15 3172 rundll32.exe 16 3172 rundll32.exe 17 3172 rundll32.exe -
resource yara_rule behavioral2/files/0x001200000002adcf-5.dat aspack_v212_v242 -
Deletes itself 1 IoCs
pid Process 5652 uzczz.exe -
Executes dropped EXE 1 IoCs
pid Process 5652 uzczz.exe -
Loads dropped DLL 2 IoCs
pid Process 3172 rundll32.exe 728 rundll32.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-707770698-2523217751-1187874351-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\xdgdt\\uhrbg.dll\",GetWindowClass" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\o: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language uzczz.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3972 cmd.exe 5004 PING.EXE 3844 cmd.exe 2132 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Runs ping.exe 1 TTPs 2 IoCs
pid Process 2132 PING.EXE 5004 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3172 rundll32.exe 3172 rundll32.exe 3172 rundll32.exe 3172 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3172 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2780 e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe 5652 uzczz.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2780 wrote to memory of 3844 2780 e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe 79 PID 2780 wrote to memory of 3844 2780 e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe 79 PID 2780 wrote to memory of 3844 2780 e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe 79 PID 3844 wrote to memory of 2132 3844 cmd.exe 81 PID 3844 wrote to memory of 2132 3844 cmd.exe 81 PID 3844 wrote to memory of 2132 3844 cmd.exe 81 PID 3844 wrote to memory of 5652 3844 cmd.exe 82 PID 3844 wrote to memory of 5652 3844 cmd.exe 82 PID 3844 wrote to memory of 5652 3844 cmd.exe 82 PID 5652 wrote to memory of 3172 5652 uzczz.exe 83 PID 5652 wrote to memory of 3172 5652 uzczz.exe 83 PID 5652 wrote to memory of 3172 5652 uzczz.exe 83 PID 4576 wrote to memory of 728 4576 cmd.exe 86 PID 4576 wrote to memory of 728 4576 cmd.exe 86 PID 4576 wrote to memory of 728 4576 cmd.exe 86 PID 728 wrote to memory of 3972 728 rundll32.exe 87 PID 728 wrote to memory of 3972 728 rundll32.exe 87 PID 728 wrote to memory of 3972 728 rundll32.exe 87 PID 3972 wrote to memory of 5004 3972 cmd.exe 89 PID 3972 wrote to memory of 5004 3972 cmd.exe 89 PID 3972 wrote to memory of 5004 3972 cmd.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe"C:\Users\Admin\AppData\Local\Temp\e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\uzczz.exe "C:\Users\Admin\AppData\Local\Temp\e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3844 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2132
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\??\c:\uzczz.exec:\uzczz.exe "C:\Users\Admin\AppData\Local\Temp\e6b4312aa2a3037519e99ab278c9bdbfcc130ce3a77d53f101b8bea9c9eed1f5.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5652 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\xdgdt\uhrbg.dll",GetWindowClass c:\uzczz.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3172
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c c:\windows\SysWOW64\rundll32.exe "c:\xdgdt\uhrbg.dll",GetWindowClass1⤵
- Suspicious use of WriteProcessMemory
PID:4576 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\SysWOW64\rundll32.exe "c:\xdgdt\uhrbg.dll",GetWindowClass2⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:728 -
\??\c:\windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 3&rd /s /q "c:\xdgdt"3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:5004
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Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
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Filesize
76KB
MD5f70959a74d140e37d0e78141ab782e1a
SHA1a47c644551d2060cc67489f6552e0d30bb4d4ade
SHA256b87e7efea9c7716a31c300c6bb9fa856e2b71b73832e38f27e37117675a400cf
SHA5124b431c03ff23803ea107b40b2e944f74dc77f0aed176f485da788eca1aac02dfde3ff78661a2cf1212706da32c0382f4b2fb3358aca76ff7faa4269110a27019
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Filesize
46KB
MD5a3fd41430ddcaa55fde840788925406a
SHA1dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2
SHA256f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9
SHA51223109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9