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Analysis
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max time kernel
177s -
max time network
183s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
03/11/2023, 09:50
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.b6a952258c6722fa63d5dda475ff04c0.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEAS.b6a952258c6722fa63d5dda475ff04c0.exe
Resource
win10v2004-20231020-en
General
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Target
NEAS.b6a952258c6722fa63d5dda475ff04c0.exe
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Size
106KB
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MD5
b6a952258c6722fa63d5dda475ff04c0
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SHA1
3b3b4cdbcc5cbe3773615af3ab861463b4db2772
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SHA256
39c6a6f56048b45ea0a126a7f1618f62da11f2adffb1727ea6d7322e65ff6b28
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SHA512
0f52ed8a4c37d77046b00bfa03917bd59b69f9cc59f5eb241808eb65111cf6ae67a31278f508afdcca282eb94f7839cc849eac429dc4eb5b88fc2ff3c879bf60
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SSDEEP
1536:TRiAXaKD5grAhdVA2VukXKzMf3liaL+SWzR+fy1ZZosMiZ7RtEs:liAXaKDLVaroj6SWzosZGyRtEs
Malware Config
Signatures
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Blocklisted process makes network request 9 IoCs
flow pid Process 3 2656 rundll32.exe 5 2656 rundll32.exe 6 2656 rundll32.exe 7 2656 rundll32.exe 8 2656 rundll32.exe 9 2656 rundll32.exe 10 2656 rundll32.exe 11 2656 rundll32.exe 13 2656 rundll32.exe -
Deletes itself 1 IoCs
pid Process 2488 kwktj.exe -
Executes dropped EXE 1 IoCs
pid Process 2488 kwktj.exe -
Loads dropped DLL 4 IoCs
pid Process 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 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-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\uaqmwlo\\trnqe.dll\",GetWindowClass" 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) \??\i: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\n: 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) \??\g: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\z: 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 -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2752 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2656 rundll32.exe 2656 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2656 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1728 NEAS.b6a952258c6722fa63d5dda475ff04c0.exe 2488 kwktj.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 1728 wrote to memory of 2760 1728 NEAS.b6a952258c6722fa63d5dda475ff04c0.exe 29 PID 1728 wrote to memory of 2760 1728 NEAS.b6a952258c6722fa63d5dda475ff04c0.exe 29 PID 1728 wrote to memory of 2760 1728 NEAS.b6a952258c6722fa63d5dda475ff04c0.exe 29 PID 1728 wrote to memory of 2760 1728 NEAS.b6a952258c6722fa63d5dda475ff04c0.exe 29 PID 2760 wrote to memory of 2752 2760 cmd.exe 31 PID 2760 wrote to memory of 2752 2760 cmd.exe 31 PID 2760 wrote to memory of 2752 2760 cmd.exe 31 PID 2760 wrote to memory of 2752 2760 cmd.exe 31 PID 2760 wrote to memory of 2488 2760 cmd.exe 32 PID 2760 wrote to memory of 2488 2760 cmd.exe 32 PID 2760 wrote to memory of 2488 2760 cmd.exe 32 PID 2760 wrote to memory of 2488 2760 cmd.exe 32 PID 2488 wrote to memory of 2656 2488 kwktj.exe 33 PID 2488 wrote to memory of 2656 2488 kwktj.exe 33 PID 2488 wrote to memory of 2656 2488 kwktj.exe 33 PID 2488 wrote to memory of 2656 2488 kwktj.exe 33 PID 2488 wrote to memory of 2656 2488 kwktj.exe 33 PID 2488 wrote to memory of 2656 2488 kwktj.exe 33 PID 2488 wrote to memory of 2656 2488 kwktj.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\kwktj.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:2752
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\??\c:\kwktj.exec:\kwktj.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2488 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\uaqmwlo\trnqe.dll",GetWindowClass c:\kwktj.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)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2656
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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
106KB
MD5c54df8ecf6c989fc3c7b41e3e0b64952
SHA1837650123d73a519d3ee2488c937df90fdafda0d
SHA2561f6fcdd976dddeb31bd31d6e99d7bef37594395ab400fc34a19b2314b028758f
SHA51230c5eae25d76a97b6c67142d1f9a02c3f8cfb8e57d08e56f979a3007101a6a681c204d93616581e2de3fc4749fad463338b60bc7b8a1e6a2de848691f2bd6d00
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Filesize
106KB
MD5c54df8ecf6c989fc3c7b41e3e0b64952
SHA1837650123d73a519d3ee2488c937df90fdafda0d
SHA2561f6fcdd976dddeb31bd31d6e99d7bef37594395ab400fc34a19b2314b028758f
SHA51230c5eae25d76a97b6c67142d1f9a02c3f8cfb8e57d08e56f979a3007101a6a681c204d93616581e2de3fc4749fad463338b60bc7b8a1e6a2de848691f2bd6d00
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Filesize
63KB
MD506c39ca503305efbf7274f6bf9394f28
SHA1bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450
SHA25619f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867
SHA512e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931
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Filesize
63KB
MD506c39ca503305efbf7274f6bf9394f28
SHA1bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450
SHA25619f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867
SHA512e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931
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Filesize
63KB
MD506c39ca503305efbf7274f6bf9394f28
SHA1bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450
SHA25619f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867
SHA512e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931
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Filesize
63KB
MD506c39ca503305efbf7274f6bf9394f28
SHA1bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450
SHA25619f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867
SHA512e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931
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Filesize
63KB
MD506c39ca503305efbf7274f6bf9394f28
SHA1bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450
SHA25619f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867
SHA512e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931