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Analysis
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max time kernel
300s -
max time network
300s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
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submitted
02/05/2024, 02:59
General
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Target
a ton of ya/ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
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Size
63KB
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MD5
222c2d239f4c8a1d73c736c9cc712807
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SHA1
c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c
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SHA256
ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d
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SHA512
1f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02
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SSDEEP
1536:tJc/5q1qoR5PDdAZcIED4VuCkbFybjQ9f0jQRmONww+W:7c/iqoJekbFEQ9W+mONP+W
Malware Config
Extracted
xworm
127.0.0.1:23638
209.25.140.1:5525:23638
bring-recorder.gl.at.ply.gg:23638
action-yesterday.gl.at.ply.gg:23638
147.185.221.19:23638
then-wheel.gl.at.ply.gg::23638
then-wheel.gl.at.ply.gg:23638
teen-modes.gl.at.ply.gg:23638
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Install_directory
%LocalAppData%
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install_file
uwumonster.exe
Signatures
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Detect Xworm Payload 2 IoCs
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Xworm
Xworm is a remote access trojan written in C#.
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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
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Drops startup file 2 IoCs
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Executes dropped EXE 12 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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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.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 7 IoCs
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Suspicious use of WriteProcessMemory 26 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe"C:\Users\Admin\AppData\Local\Temp\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "uwumonster" /tr "C:\Users\Admin\AppData\Local\uwumonster.exe"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe" /watchdog3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe" /watchdog3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe" /watchdog3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe" /watchdog3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe" /watchdog3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe"C:\Users\Admin\AppData\Local\Temp\jkvnmk.exe" /main3⤵
- Checks computer location settings
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exe"C:\Windows\System32\notepad.exe" \note.txt4⤵
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C:\Users\Admin\AppData\Local\uwumonster.exeC:\Users\Admin\AppData\Local\uwumonster.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\uwumonster.exeC:\Users\Admin\AppData\Local\uwumonster.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\uwumonster.exeC:\Users\Admin\AppData\Local\uwumonster.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\uwumonster.exeC:\Users\Admin\AppData\Local\uwumonster.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\uwumonster.exeC:\Users\Admin\AppData\Local\uwumonster.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
16KB
MD51d5ad9c8d3fee874d0feb8bfac220a11
SHA1ca6d3f7e6c784155f664a9179ca64e4034df9595
SHA2563872c12d31fc9825e8661ac01ecee2572460677afbc7093f920a8436a42e28ff
SHA512c8246f4137416be33b6d1ac89f2428b7c44d9376ac8489a9fbf65ef128a6c53fb50479e1e400c8e201c8611992ab1d6c1bd3d6cece89013edb4d35cdd22305b1
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Filesize
63KB
MD5222c2d239f4c8a1d73c736c9cc712807
SHA1c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c
SHA256ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d
SHA5121f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02
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Filesize
218B
MD5afa6955439b8d516721231029fb9ca1b
SHA1087a043cc123c0c0df2ffadcf8e71e3ac86bbae9
SHA2568e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270
SHA5125da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
88KB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
10.8MB