Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19/01/2025, 12:08
Static task
static1
Behavioral task
behavioral1
Sample
fe68f93025656a4ae8771ef0331c4fbb16117ac536a5f17d0d353ea1d727a604.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
fe68f93025656a4ae8771ef0331c4fbb16117ac536a5f17d0d353ea1d727a604.dll
Resource
win10v2004-20241007-en
General
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Target
fe68f93025656a4ae8771ef0331c4fbb16117ac536a5f17d0d353ea1d727a604.dll
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Size
188KB
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MD5
44b76574e2e207725ba3a51ef6c37be9
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SHA1
4e93ea81ab3d6efd0e577ff46b20f8041d83194e
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SHA256
fe68f93025656a4ae8771ef0331c4fbb16117ac536a5f17d0d353ea1d727a604
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SHA512
851747ac149fac7b352347cce0364cb9dea697e2ffab026aea48d0ce5b9419b11854f5e73ac7b69d1526da5402130710a25c1e69c8eced68127792069e5aa752
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SSDEEP
3072:MlnKBiVIYKoD3a+CRadV+0MIuojV8XCZH5NEGqJcWhZWtWu9b8/++9OvIKGHTpR5:MlOiVNCRupFmSZHZqOWhZIWui/9OvIKi
Malware Config
Signatures
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Blocklisted process makes network request 10 IoCs
flow pid Process 13 3984 rundll32.exe 17 3984 rundll32.exe 23 3984 rundll32.exe 24 3984 rundll32.exe 25 3984 rundll32.exe 39 3984 rundll32.exe 40 3984 rundll32.exe 44 3984 rundll32.exe 51 3984 rundll32.exe 52 3984 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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\esf = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\fe68f93025656a4ae8771ef0331c4fbb16117ac536a5f17d0d353ea1d727a604.dll\",EnumSourceFiles" 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) \??\h: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\q: 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) \??\b: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\y: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 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 -
System Location Discovery: System Language Discovery 1 TTPs 1 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 rundll32.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 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3984 rundll32.exe 3984 rundll32.exe 3984 rundll32.exe 3984 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3984 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 460 wrote to memory of 3984 460 rundll32.exe 85 PID 460 wrote to memory of 3984 460 rundll32.exe 85 PID 460 wrote to memory of 3984 460 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fe68f93025656a4ae8771ef0331c4fbb16117ac536a5f17d0d353ea1d727a604.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:460 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fe68f93025656a4ae8771ef0331c4fbb16117ac536a5f17d0d353ea1d727a604.dll,#12⤵
- Blocklisted process makes network request
- 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:3984
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Network
MITRE ATT&CK Enterprise v15
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
1