Overview
overview
7Static
static
3cjzg_mayiyx.exe
windows10-2004-x64
7cjzg_mayiyx.exe
windows11-ltsc_2024-x64
7$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-ltsc_2024-x64
3cjzg.exe
windows10-2004-x64
3cjzg.exe
windows11-ltsc_2024-x64
3uninst.exe
windows10-2004-x64
7uninst.exe
windows11-ltsc_2024-x64
7$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-ltsc_2024-x64
3$PLUGINSDIR/inetc.dll
windows10-2004-x64
3$PLUGINSDIR/inetc.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows11-ltsc_2024-x64
3Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
30/07/2026, 06:33
Behavioral task
behavioral1
Sample
cjzg_mayiyx.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
cjzg_mayiyx.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral13
Sample
cjzg.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
cjzg.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral15
Sample
uninst.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
uninst.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral23
Sample
$PLUGINSDIR/inetc.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
$PLUGINSDIR/inetc.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral25
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral26
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11ltsc2024-20260709-en
General
- Target cjzg_mayiyx.exe
- Size 1.6MB
- Sample260730-hbbhqssdlf
- SHA256 bd13bb6efcd97c394f87c31e54856ccf6415c023beb5e2cc32fa5f15e5ae6d9e
- MD5 62db55754d917cd5118e6ca55ee51fe9
- SHA1 35be9a2d8dbe9d5f35c1d5613ee00e94435c76b1
- SHA512 cc606fdc8fabc49f9756f32d65d22e4d159c01012339b43f0689564d641fbd3abd72204928e2fb2035399f474619e6ad0619a422ef7ba061818541342f6421b7
- SSDEEP 49152:npwBwkBS0Bc9unQfgiL4k9c53A/CsWPIX:nawkBS0gKQfCka5Q/2PIX
- TLSH T18175331867F0F5B0CB121AB226DE6360FDF362672BB0084317DFCA574A646662F147E6
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2720 cjzg.exe - Loads dropped DLL 7 IoCs
pid Process 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 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 cjzg_mayiyx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cjzg.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe 4976 cjzg_mayiyx.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2720 cjzg.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2720 cjzg.exe 2720 cjzg.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4976 wrote to memory of 2720 4976 cjzg_mayiyx.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\cjzg_mayiyx.exe"C:\Users\Admin\AppData\Local\Temp\cjzg_mayiyx.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\cjzg.exe"C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\cjzg.exe" /autorun /setuprun2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2720
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nslF8B5.tmp\FindProcDLL.dll
- Size 3KB
- SHA256 0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758
- MD5 8614c450637267afacad1645e23ba24a
- SHA1 e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2
- SHA512 af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b
- TLSH T1AE717387378506B7D08006303089BCAA3B9E9A350F5B59BFD6DBA99F7C641F4E134706
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nslF8B5.tmp\System.dll
- Size 10KB
- SHA256 bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1
- MD5 56a321bd011112ec5d8a32b2f6fd3231
- SHA1 df20e3a35a1636de64df5290ae5e4e7572447f78
- SHA512 5354890cbc53ce51081a78c64ba9c4c8c4dc9e01141798c1e916e19c5776dac7c82989fad0f08c73e81aaba332dad81205f90d0663119af45550b97b338b9cc3
- SSDEEP 192:uv+cJZE61KRWJQO6tFiUdK7ckK4k7l1XRBm0w+NiHi1GSJ:uf6rtFRduQ1W+fG8
- TLSH T127225C5893E0C1F3D6A0853C18A73A772729712445A18FE3CFA35841AE196D7BC7E336
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\Lander.ini
- Size 405B
- SHA256 6e00a26c5756db57383d47f34527bbd0ae539684072451d940821f10e2c12055
- MD5 15ffe126d748f1fdd978be88834cfe12
- SHA1 6cb1b529e2e1cca8380d977004ef098a15416cbe
- SHA512 177dd9d1fceb32f46a378074485f4e2877dfea022f1861c2c833a4f014477feac7ab407bbdc931327d61757c6685d5455a9ce343a8515e6361979b65dd43d258
- TLSH T106E02B177029DE3495054ABB98F31D6CDDC31EC41059CF2402D72D029E40CF974E616B
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\cjzg.exe
- Size 1.5MB
- SHA256 1f44355cfdb780d281973d0e84d667ef6a78185779c018aab2329f377de607b5
- MD5 eb91d7a2aa7c5b969e4e8ed284dfa7e3
- SHA1 f498211fae9562524394c1d119676c5d6f2f90dd
- SHA512 65d78b5c4d875018a9ef54736c5b73b5ba3b453be5f74f8a11399a09f96eb9c7e6d2a347a0dd705f65da9c309a3171c5dc70c3ef33571656921ce3ab3225a4e4
- SSDEEP 24576:i3TdKOsm/6GKOsipuKYq9cQM2zdEJMsHXc6+tEjTd4+dAz943IM+7J4SB3d/64Lo:79GKOs8BYqK4zO+sHXc6+tE7dAzO3IXA
- TLSH T1F7651211FB86D0B2C58A007D4A67D77A6A7AFDD2572006D3B7D82EB94E303E09D36346
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\lander.ini
- Size 374B
- SHA256 555d7a8fb9670076ebf69addc31c62042d155b9ac3fc3363b36f823898f0053c
- MD5 c019b8f80caf52b6de58ddf105ad0550
- SHA1 e4f10ea73aad8bfd9f6482384a3a8252de2eb382
- SHA512 c5689359c6c5d4f91fe0cfb58bae63df1bd57001e9895d040f9b11d997e860a1898fbcd7cdcdfa47189e1fd3d54ddccee12b3b4c2516a861197bc443c387a836
- TLSH T12FE0681B7019DE30950689BF98B21D6CDDC31E881069CF3402D31D034E40CBA78A716B
- MD5 SHA1 SHA512 TLSH