Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
18/04/2024, 14:21
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe
Resource
win7-20240215-en
windows7-x64
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe
Resource
win10v2004-20240412-en
windows10-2004-x64
16 signatures
150 seconds
General
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Target
511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe
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Size
404KB
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MD5
b9f2c19f9fdc3ce0bfdf0bebe422215f
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SHA1
e4d5b277ccf1cdf1f0597c5109abff21c3b630f7
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SHA256
511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32
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SHA512
4cb5377daf67ef9732ee6cc46284f37df10bda97719975e50da0ab532f87108aa48c85a02d38d05b90a4ce610f9e7ad73add765aae25b8aaf0bb6033d8faa60b
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SSDEEP
6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse
Score
8/10
Malware Config
Signatures
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Blocklisted process makes network request 10 IoCs
flow pid Process 3 2712 rundll32.exe 5 2712 rundll32.exe 8 2712 rundll32.exe 9 2712 rundll32.exe 10 2712 rundll32.exe 13 2712 rundll32.exe 14 2712 rundll32.exe 15 2712 rundll32.exe 17 2712 rundll32.exe 18 2712 rundll32.exe -
Deletes itself 1 IoCs
pid Process 2592 eellxnbo.exe -
Executes dropped EXE 1 IoCs
pid Process 2592 eellxnbo.exe -
Loads dropped DLL 6 IoCs
pid Process 2212 cmd.exe 2212 cmd.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\pwemnzp\\cmjnr.dll\",Verify" 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) \??\r: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\n: 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 -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2712 rundll32.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File opened for modification \??\c:\Program Files\pwemnzp eellxnbo.exe File created \??\c:\Program Files\pwemnzp\cmjnr.dll eellxnbo.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 1300 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe 2712 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2712 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2204 511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe 2592 eellxnbo.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 2204 wrote to memory of 2212 2204 511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe 28 PID 2204 wrote to memory of 2212 2204 511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe 28 PID 2204 wrote to memory of 2212 2204 511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe 28 PID 2204 wrote to memory of 2212 2204 511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe 28 PID 2212 wrote to memory of 1300 2212 cmd.exe 30 PID 2212 wrote to memory of 1300 2212 cmd.exe 30 PID 2212 wrote to memory of 1300 2212 cmd.exe 30 PID 2212 wrote to memory of 1300 2212 cmd.exe 30 PID 2212 wrote to memory of 2592 2212 cmd.exe 31 PID 2212 wrote to memory of 2592 2212 cmd.exe 31 PID 2212 wrote to memory of 2592 2212 cmd.exe 31 PID 2212 wrote to memory of 2592 2212 cmd.exe 31 PID 2592 wrote to memory of 2712 2592 eellxnbo.exe 32 PID 2592 wrote to memory of 2712 2592 eellxnbo.exe 32 PID 2592 wrote to memory of 2712 2592 eellxnbo.exe 32 PID 2592 wrote to memory of 2712 2592 eellxnbo.exe 32 PID 2592 wrote to memory of 2712 2592 eellxnbo.exe 32 PID 2592 wrote to memory of 2712 2592 eellxnbo.exe 32 PID 2592 wrote to memory of 2712 2592 eellxnbo.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe"C:\Users\Admin\AppData\Local\Temp\511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\eellxnbo.exe "C:\Users\Admin\AppData\Local\Temp\511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:1300
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C:\Users\Admin\AppData\Local\Temp\eellxnbo.exeC:\Users\Admin\AppData\Local\Temp\\eellxnbo.exe "C:\Users\Admin\AppData\Local\Temp\511e62284e93db96b180f64eda5d392dc5a602acd492e555f2d75a1a24624f32.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2592 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\Program Files\pwemnzp\cmjnr.dll",Verify C:\Users\Admin\AppData\Local\Temp\eellxnbo.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)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2712
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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
1Replay Monitor
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Downloads
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Filesize
228KB
MD508f7922144c9fa37b1e4448c775c89c6
SHA1f6428a9b8430a2285cc7a0e0bc5c9a1f4c3e346a
SHA2565c4228dfcf4df1108aa0a726b4ce9fdcf395c2ca6538a75778c2656ac1c9fe48
SHA512b7a3e5aeff19c5e48c7cdf3e4294cb9d584afb2666570f0f042087e354ea0fcf1f3ea8ad8ceb3e43f0e9a297918a42e5eba7d9bd14bcbd40c56eada9caa1070c
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Filesize
404KB
MD52646353fb504e77874b57ad144ae737d
SHA10ebf1f9a89eb779e5ea13cadd0af543d6d0bb8fb
SHA25686441982de71b442ce80136d719276c63069c9cfc3419bd532a099c585580362
SHA512eaf40f588c9bf9f0082d560c44503dfc4d285ad7714bb2c0c5b0b6cfb3069991f221413cd181f756280969d8629f5380a607031d527b29203af409f16dd49324