Analysis
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max time kernel
119s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
01/10/2024, 16:29
Static task
static1
Behavioral task
behavioral1
Sample
deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe
Resource
win7-20240729-en
General
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Target
deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe
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Size
149KB
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MD5
8e06393d18372a7d8d9bc81f331d9670
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SHA1
d55ce3f55b47e912df2bfa39ad887fc41c836fda
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SHA256
deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7
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SHA512
83505e35d2e337708b93af916f7294bb8498bc95de14902d319b38e1d61a540e94fc4f9c1db5b5aeb140acabacd765bec75cc2885792eb9bbe45b2596dce16fa
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SSDEEP
1536:fli0XaKn5gYkqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYUe:di0XaKncqY31L2WXb0E86mwYUiz
Malware Config
Signatures
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Blocklisted process makes network request 8 IoCs
flow pid Process 20 2320 rundll32.exe 34 2320 rundll32.exe 38 2320 rundll32.exe 39 2320 rundll32.exe 54 2320 rundll32.exe 57 2320 rundll32.exe 61 2320 rundll32.exe 68 2320 rundll32.exe -
resource yara_rule behavioral2/files/0x000700000002361a-8.dat aspack_v212_v242 -
Deletes itself 1 IoCs
pid Process 3204 rciqlyz.exe -
Executes dropped EXE 1 IoCs
pid Process 3204 rciqlyz.exe -
Loads dropped DLL 1 IoCs
pid Process 2320 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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\xzeci\\traiu.dll\",AbortProc" 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) \??\s: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\i: 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) \??\a: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\m: 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 5 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 deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe 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 rciqlyz.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3648 cmd.exe 1432 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 1 IoCs
pid Process 1432 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2320 rundll32.exe 2320 rundll32.exe 2320 rundll32.exe 2320 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2320 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 752 deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe 3204 rciqlyz.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 752 wrote to memory of 3648 752 deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe 89 PID 752 wrote to memory of 3648 752 deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe 89 PID 752 wrote to memory of 3648 752 deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe 89 PID 3648 wrote to memory of 1432 3648 cmd.exe 91 PID 3648 wrote to memory of 1432 3648 cmd.exe 91 PID 3648 wrote to memory of 1432 3648 cmd.exe 91 PID 3648 wrote to memory of 3204 3648 cmd.exe 92 PID 3648 wrote to memory of 3204 3648 cmd.exe 92 PID 3648 wrote to memory of 3204 3648 cmd.exe 92 PID 3204 wrote to memory of 2320 3204 rciqlyz.exe 93 PID 3204 wrote to memory of 2320 3204 rciqlyz.exe 93 PID 3204 wrote to memory of 2320 3204 rciqlyz.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe"C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:752 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\rciqlyz.exe "C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3648 -
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:1432
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\??\c:\rciqlyz.exec:\rciqlyz.exe "C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3204 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\xzeci\traiu.dll",AbortProc c:\rciqlyz.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:2320
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4092,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=3760 /prefetch:81⤵PID:2144
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
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
150KB
MD52ccb4707891ebaeb07eacfb726a34b6f
SHA1907b8c80beeb0fc272a72f446791386fcce9f0a2
SHA256d3775c6029cc2394b47c8cd8c969c1a1d0448dbb82d8b3227f98101405ed2899
SHA512e0ced941ab7bcece0a718ff79e4e9714af67a2c045baf4adb50791c16be40bbc26c3d09d631a921c85cdd3aeef51413d1abcc61b6e8ac823b6f411a8f229f484
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Filesize
87KB
MD5a2c2137ff7abf6be6bcae4252c394a69
SHA107b402104df563f9486c2eef975fee70f65a5145
SHA25637ab4b7ee8f6b61c3854af4ed4676fd0d69f0260fb1296ad75e57aa08e1eeb03
SHA5125d05ed7c55bee8f41502acaea3d41fcf4421ad641d43f0b97b4cdc8fe584983da7712c561a53b708e88391df7929914746115700ae733155418693bcec6989a9