Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
09-11-2024 22:02
Static task
static1
Behavioral task
behavioral1
Sample
9ded03a9f9b345148f422a8aa0e91138c83fb968763c990939f508e0a41a642bN.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
9ded03a9f9b345148f422a8aa0e91138c83fb968763c990939f508e0a41a642bN.dll
Resource
win10v2004-20241007-en
General
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Target
9ded03a9f9b345148f422a8aa0e91138c83fb968763c990939f508e0a41a642bN.dll
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Size
81KB
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MD5
73d4bcffe37b1091f3992339e06baf30
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SHA1
b1dfb877bfd842a1209ea740fc85758e676aa3fb
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SHA256
9ded03a9f9b345148f422a8aa0e91138c83fb968763c990939f508e0a41a642b
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SHA512
f66233f0664d4ed77822f18513ea07c05e0c214ff6686e4903d0819d1b2d12102893af675e57223e9c99c4cd94f96bc123d3c8f3efaca722ea904a452aec8ab1
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SSDEEP
1536:lCbhjW8rhK4rg6Z1qdkMB5eIO292XbNTx9sy8ifyXxyk3D3Wfn25B76Ps06DcBqN:QbhjWfe/+dkg4ZfWiKAC3W67E5nBqN
Malware Config
Signatures
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Blocklisted process makes network request 6 IoCs
Processes:
rundll32.exeflow pid process 3 2680 rundll32.exe 5 2680 rundll32.exe 7 2680 rundll32.exe 8 2680 rundll32.exe 11 2680 rundll32.exe 12 2680 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
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\EM = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\9ded03a9f9b345148f422a8aa0e91138c83fb968763c990939f508e0a41a642bN.dll\",ExitModule" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
rundll32.exedescription ioc process File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\p: 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.
Processes:
rundll32.exedescription 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.
Processes:
rundll32.exedescription 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.
Processes:
rundll32.exedescription 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 2 IoCs
Processes:
rundll32.exepid process 2680 rundll32.exe 2680 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
rundll32.exedescription pid process Token: SeDebugPrivilege 2680 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exedescription pid process target process PID 3028 wrote to memory of 2680 3028 rundll32.exe rundll32.exe PID 3028 wrote to memory of 2680 3028 rundll32.exe rundll32.exe PID 3028 wrote to memory of 2680 3028 rundll32.exe rundll32.exe PID 3028 wrote to memory of 2680 3028 rundll32.exe rundll32.exe PID 3028 wrote to memory of 2680 3028 rundll32.exe rundll32.exe PID 3028 wrote to memory of 2680 3028 rundll32.exe rundll32.exe PID 3028 wrote to memory of 2680 3028 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9ded03a9f9b345148f422a8aa0e91138c83fb968763c990939f508e0a41a642bN.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9ded03a9f9b345148f422a8aa0e91138c83fb968763c990939f508e0a41a642bN.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:2680
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