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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, 18:56
Static task
static1
Behavioral task
behavioral1
Sample
tuc5.exe
Resource
win7-20231025-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
023c01c7c2241e8314ad80e9ee83c19e
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SHA1
755ed5d54d67f4b10998fd4d8d1f5c31d1ac187f
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SHA256
56ab874cd97a0ad96c97d66f3eb45a58cc2135607df463231d5e44ece00ecbe1
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SHA512
545be8f43f569defb2f961113e7cd9efacbff4a3eb49735a9a226119ecd8b55ed909061dfbce56765f8882d8b74428e4168455ff836a768e31a3ab2151ace963
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SSDEEP
196608:rxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:BNztzQlcDPXus98d9Jzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4640 tuc5.tmp 3472 crtgame.exe 4168 crtgame.exe -
Loads dropped DLL 3 IoCs
pid Process 4640 tuc5.tmp 4640 tuc5.tmp 4640 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 141.98.234.31 -
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-T74QT.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-PQ761.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-V6QI1.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-24JAG.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-6C8KN.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-329U1.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-G5LE0.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-5MFVA.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NL23D.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2L1TJ.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\uninstall\unins000.dat tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-9K929.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-O98FA.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0QCUD.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-BSDTV.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2JH0R.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\uninstall\is-MC5A1.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-5GESP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NQOJS.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-833IK.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-R7LPO.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-53PVN.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-IB6FI.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-4CE27.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-BSLFJ.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-JL04O.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-RVS91.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-CI8H1.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-R6I20.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-GITOS.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-VDCCR.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-KSRG7.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-L9OIN.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-L5S1O.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-B0KBM.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-5M6TP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-VFCIP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-5391K.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-JJSON.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-342V8.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2I3O3.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-8ICL4.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-3V2RQ.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-AVVMD.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-RLEM6.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-8KN52.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2I79A.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-2IPJE.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-L6R8E.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NCC1V.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-3KRC3.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NTFN7.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-KJVEG.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\is-E1MLD.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-3R8BT.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-NQ6BK.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-HUSN1.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-AU154.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NN30D.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-197AN.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-LDPKH.tmp tuc5.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4640 tuc5.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 4828 wrote to memory of 4640 4828 tuc5.exe 87 PID 4828 wrote to memory of 4640 4828 tuc5.exe 87 PID 4828 wrote to memory of 4640 4828 tuc5.exe 87 PID 4640 wrote to memory of 5100 4640 tuc5.tmp 89 PID 4640 wrote to memory of 5100 4640 tuc5.tmp 89 PID 4640 wrote to memory of 5100 4640 tuc5.tmp 89 PID 4640 wrote to memory of 3472 4640 tuc5.tmp 91 PID 4640 wrote to memory of 3472 4640 tuc5.tmp 91 PID 4640 wrote to memory of 3472 4640 tuc5.tmp 91 PID 4640 wrote to memory of 5116 4640 tuc5.tmp 94 PID 4640 wrote to memory of 5116 4640 tuc5.tmp 94 PID 4640 wrote to memory of 5116 4640 tuc5.tmp 94 PID 4640 wrote to memory of 4168 4640 tuc5.tmp 92 PID 4640 wrote to memory of 4168 4640 tuc5.tmp 92 PID 4640 wrote to memory of 4168 4640 tuc5.tmp 92 PID 5116 wrote to memory of 2244 5116 net.exe 95 PID 5116 wrote to memory of 2244 5116 net.exe 95 PID 5116 wrote to memory of 2244 5116 net.exe 95
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:4828 -
C:\Users\Admin\AppData\Local\Temp\is-F5SS8.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-F5SS8.tmp\tuc5.tmp" /SL5="$D0030,7025884,54272,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:4640 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:5100
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -i3⤵
- Executes dropped EXE
PID:3472
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -s3⤵
- Executes dropped EXE
PID:4168
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 103⤵
- Suspicious use of WriteProcessMemory
PID:5116 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 104⤵PID:2244
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.1MB
MD5b3846cd01146bebce4a252663ddafa91
SHA188be480b2a95390c6d6beb56006ea11deeb551f3
SHA256b816b287ed2cc3891828848ec1a26559f6b24b0de8bd438a7d716d94aaf7505d
SHA5125e46c77f8dcb05429d05aaf8edb44df36ed71fe00cccc8e02cfed542d9ee8bbde22294f120fd176b9f05e7ff7e0d1654076346d0bde5bed9bc174b3b46bfcbbf
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Filesize
832KB
MD5bbe02efbfa5df6a7246ea5779bbd0cd2
SHA1317603475650d65091cd1efff32c786c7f3a0a60
SHA256edb66d143cf84c600f28bf96fbcb007e46c81ccece10db2a5affe8475d78d391
SHA51257a63fc340070c4fdd1237f7e7db1cb67d65ef7336e0a7b191290398a601bce3f9b65908d1aae024a73104ec661a1f49c1e0f826be585f7fd1c0ecce6487a6ef
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Filesize
1.0MB
MD58b27669804775e844d9817f5141f59fe
SHA17ff3330af35668bf341731e140db4f0082df74db
SHA2569f332057d46d0c4c65311d71a7ddffb6a8cfb4ad803e4e1c9a228a5e98c76dcb
SHA512e72f433b0bd05f6bef4124cac7702076b7ca6e70b3c423ac5a1b331da02195faaa74c75260f8b6c3b7230f5968b7872f2f35a9511fcd3963d979e74b068381df
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303