Analysis
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max time kernel
139s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
08/03/2024, 23:12
Static task
static1
Behavioral task
behavioral1
Sample
ae5ee16aaf071bcd5864b977e3640e926a97c4d8a8c01feaba2133897497cc14.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
ae5ee16aaf071bcd5864b977e3640e926a97c4d8a8c01feaba2133897497cc14.dll
Resource
win10v2004-20231215-en
General
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Target
ae5ee16aaf071bcd5864b977e3640e926a97c4d8a8c01feaba2133897497cc14.dll
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Size
240KB
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MD5
61803bb21959915dae4096cafb396468
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SHA1
f2caacc3935ca217b546a4b0648f02b472fe1f62
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SHA256
ae5ee16aaf071bcd5864b977e3640e926a97c4d8a8c01feaba2133897497cc14
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SHA512
6350d30abdde3b695d5e75d6678df4535a957ea0c4cc0c70f72a037becb910293b007e67906b0c75060f872e4be7b2175a45dcbc193626c4ea0cc0ad4b2bf9aa
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SSDEEP
6144:65r3lV6n42+3WSKhxD8RVo2rcaGKNqAwyotp2/:6C+3xWDY9IpKNTwyo0
Malware Config
Signatures
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Blocklisted process makes network request 10 IoCs
flow pid Process 3 2292 rundll32.exe 5 2292 rundll32.exe 6 2292 rundll32.exe 7 2292 rundll32.exe 8 2292 rundll32.exe 9 2292 rundll32.exe 10 2292 rundll32.exe 11 2292 rundll32.exe 13 2292 rundll32.exe 14 2292 rundll32.exe -
Reads user/profile data of web browsers 2 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-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows\CurrentVersion\Run\Platform = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ae5ee16aaf071bcd5864b977e3640e926a97c4d8a8c01feaba2133897497cc14.dll\",Erase" 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) \??\g: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\l: 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) \??\v: rundll32.exe File opened (read-only) \??\w: 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 -
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 2 IoCs
pid Process 2292 rundll32.exe 2292 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2292 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2464 wrote to memory of 2292 2464 rundll32.exe 28 PID 2464 wrote to memory of 2292 2464 rundll32.exe 28 PID 2464 wrote to memory of 2292 2464 rundll32.exe 28 PID 2464 wrote to memory of 2292 2464 rundll32.exe 28 PID 2464 wrote to memory of 2292 2464 rundll32.exe 28 PID 2464 wrote to memory of 2292 2464 rundll32.exe 28 PID 2464 wrote to memory of 2292 2464 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ae5ee16aaf071bcd5864b977e3640e926a97c4d8a8c01feaba2133897497cc14.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2464 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ae5ee16aaf071bcd5864b977e3640e926a97c4d8a8c01feaba2133897497cc14.dll,#12⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2292
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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
1