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Analysis
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max time kernel
142s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
10/12/2023, 20:42
Static task
static1
Behavioral task
behavioral1
Sample
tuc5.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
tuc5.exe
Resource
win10v2004-20231130-en
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
b4336ca6bab18f9d3521804993eeefd9
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SHA1
1f35615eef691d59ccdbde87bd02f7a6d5fc40c5
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SHA256
477959c8aecaf3cd9d0e105024d647b936d9595bf726a33d82f5df7990e36921
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SHA512
f3d8f4cf595273203a7d15f55d491af64d520bfefb020254b318eed657d9790c5308a32fb4624d23c2469da35358f9770d5a9f1c1f716fee8c2038fc3bec0222
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SSDEEP
196608:IxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:gNztzQlcDPXus98d9Jzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4812 tuc5.tmp 2720 crtgame.exe 2012 crtgame.exe -
Loads dropped DLL 3 IoCs
pid Process 4812 tuc5.tmp 4812 tuc5.tmp 4812 tuc5.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 45.155.250.90 -
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
description ioc Process File created C:\Program Files (x86)\CRTGame\bin\x86\is-HFRMP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2D59N.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-9L4U0.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-QN2JN.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-EG6LE.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-O45N7.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-MQCD7.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-AVRUS.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0M5I2.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-HNNCV.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-N1KON.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-SK3GE.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-QOF6B.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-G11NB.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-CMQBQ.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-E1KDQ.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-RBT4H.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-M5SQ8.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\uninstall\is-PI8RU.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-H0I7U.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-TT3QP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-OKA3T.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-HEE8L.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2VJC2.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-DUALK.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-5CDDN.tmp tuc5.tmp File opened for modification C:\Program Files (x86)\CRTGame\uninstall\unins000.dat tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-4M1Q5.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-TU97M.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-BCBD7.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-E69PL.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-8D9TM.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-IJ1VE.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-V87K3.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2CJPM.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-JF0AT.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-EEFIL.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-IRIT6.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-4BJ5R.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-B0137.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-IRB5I.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\is-2IR15.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-IVP9D.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NL637.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-LUSV2.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-LLGL6.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NNEO6.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-N9OUK.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0IM59.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-4OL5Q.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-KAGOD.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-FS9CN.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-11I83.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0H9HO.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-32A2J.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-AK9LI.tmp tuc5.tmp File opened for modification C:\Program Files (x86)\CRTGame\crtgame.exe tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-7LR1V.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-80BVS.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-5H71J.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\uninstall\unins000.dat tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-ALVEP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-B5N0G.tmp tuc5.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4812 tuc5.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1336 wrote to memory of 4812 1336 tuc5.exe 87 PID 1336 wrote to memory of 4812 1336 tuc5.exe 87 PID 1336 wrote to memory of 4812 1336 tuc5.exe 87 PID 4812 wrote to memory of 4024 4812 tuc5.tmp 91 PID 4812 wrote to memory of 4024 4812 tuc5.tmp 91 PID 4812 wrote to memory of 4024 4812 tuc5.tmp 91 PID 4812 wrote to memory of 2720 4812 tuc5.tmp 92 PID 4812 wrote to memory of 2720 4812 tuc5.tmp 92 PID 4812 wrote to memory of 2720 4812 tuc5.tmp 92 PID 4812 wrote to memory of 3900 4812 tuc5.tmp 96 PID 4812 wrote to memory of 3900 4812 tuc5.tmp 96 PID 4812 wrote to memory of 3900 4812 tuc5.tmp 96 PID 4812 wrote to memory of 2012 4812 tuc5.tmp 95 PID 4812 wrote to memory of 2012 4812 tuc5.tmp 95 PID 4812 wrote to memory of 2012 4812 tuc5.tmp 95 PID 3900 wrote to memory of 2632 3900 net.exe 97 PID 3900 wrote to memory of 2632 3900 net.exe 97 PID 3900 wrote to memory of 2632 3900 net.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1336 -
C:\Users\Admin\AppData\Local\Temp\is-N6TM3.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-N6TM3.tmp\tuc5.tmp" /SL5="$B0068,7025884,54272,C:\Users\Admin\AppData\Local\Temp\tuc5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4812 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:4024
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -i3⤵
- Executes dropped EXE
PID:2720
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -s3⤵
- Executes dropped EXE
PID:2012
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 103⤵
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 104⤵PID:2632
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
983KB
MD5b7a575b2b58ccb1ea74b32a5dc9054bb
SHA182565affb2bfe3998e6c8d0ac031a41029908f36
SHA256d7c8e88962a7fffb8b23ec55f93426778b4f1843660b99c1f96faa5cd62e3298
SHA5120934a3b76f4cb28287d0e6679fc75336868c4350b9f16d3ebc173a5fb0c243c09755d2d6d391bae9fa18036b04cfef1084838f3b14b00c9948d4e77a85bf4219
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Filesize
469KB
MD5909af50d0fec3e53df90b926aa2bb94f
SHA10968be2ad7318f3107d758812587e3d53a045431
SHA256fb45e93379b11bd6a4d2f30da150a022c9f27e2885b9643f9f0f68dfc56aa92e
SHA512ebb10b999e3b1d15d51cccff4603a2d336567c9c9a7ed0b7417efeb2e38d72f2f5d1c1c08a5721ed54fe3340f9bc88e322b5dd8a5074e781fa71bd0e015c55a4
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Filesize
66KB
MD5f9d5c330f7788511779e1858bd17b4c3
SHA1a42c1631eab2b5dfbbd9d0874a7bf7a4c6d2b878
SHA2568ed70a6fd15002aa541beba5e8f727ce113cc80601923c1c12373d604c8840d3
SHA5125f0da88320d03215244d07e2f3f5828623a679a8e66854e3d22667a8ef00eac02f19b91b9e5ab3583df60ef8f64374307d9d1a48eba592c71fcb964cbcff17bc
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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
229KB
MD5a23bd859f089dc69a73c6b4fc9d2fdae
SHA1c4f905a54dbcd50821ec6eb0ceac909ad9a8bb78
SHA2564d653d9a68479d5f935928ae90b349c1adbb6936b452d45a4f036d8e4d9f7955
SHA512b4a358fd646b80d862d2ad3a5a44508c246413452156b6b3d03db89b4b5ac173553af41122352f44848aa6b3db90dd54afdb0c6568a9f668b151c17f66720db1