Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
11/12/2023, 19:36
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
b0904b7562839c25325b0c2e7f99f396
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SHA1
fd1df296c76c157c7b94479317d3af3410beb40a
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SHA256
3d43340a6d28f12be42be9bd9ad63bc364c85b8f95fe37715ceb8c7588302cc6
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SHA512
0c9455376aa1b8c8fa8b841a97a6951c0d3d277b70d401daedb84a6bd9f011e892b0dfc07acf62d3e47eb0e74a35cbcd41e7d1e8c4a75adb8388078f4b488815
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SSDEEP
196608:upVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:upVBtvpbL/+vVYBrTTefzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 3 IoCs
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Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 63 IoCs
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Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc4.exe"C:\Users\Admin\AppData\Local\Temp\tuc4.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-KRPNQ.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-KRPNQ.tmp\tuc4.tmp" /SL5="$A0054,7565670,68096,C:\Users\Admin\AppData\Local\Temp\tuc4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
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C:\Program Files (x86)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.exe" -s3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.2MB
MD5e5dfe39eda4181e365ca4f50fd892d5e
SHA11263ca5212b71864b27594c85eb5a894ac678ffc
SHA2562753627727c2940bd8a69356a369acaf24066d0bce42700ca1fc2e0946c9b162
SHA512af500ea06efd6a541fa406ac4e46131ff4b89ea06b3035dccc34b4866ce72a5a96736ab8ce3e49538f91bcc407e404cc4091eda9c7167464923a205d68d4e6df
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Filesize
429KB
MD508e1302113d6315529641e7bc27b4279
SHA1b062466abde78508fbadeeac51608a1c650512df
SHA2561d75296d4da58f2b5086ae30d4c832f1e36154797fae24b7d14920aac8573249
SHA512315b8f1695dea68ca8317a6d008adb7b0a7331047c14a63588e4ca81c4091f9ae00d4a1f59a9a2e2823c57437b258dac217af8a9b70712c3b78cfa7f95f5124f
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Filesize
221KB
MD5ec86f16b89ec282f9f83438f39ae4ba2
SHA1f43753539edf18b87abff9bed6702a2816bbc3a8
SHA256d5b634e9996b4a8086bb8e366b40a292c6ed264347c5d9ca4cb8e4b4d0ac190c
SHA512ad5adaed756f16b3b81430d19f5c29b4804a87d00fe42e3500ac45301c82214a0c19291b743ca9eab5a4a89fc5e8f2895b2678691e8b4c752ccffe1f9a5857d1
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
-
Filesize
2.4MB
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Filesize
2.4MB
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Filesize
632KB
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Filesize
2.4MB
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Filesize
632KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
632KB
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Filesize
4KB
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Filesize
752KB
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Filesize
4KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB