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Analysis
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max time kernel
149s -
max time network
150s -
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, 20:21
Static task
static1
Behavioral task
behavioral1
Sample
tuc3.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
tuc3.exe
Resource
win10v2004-20231130-en
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
5dc26d87f76b3a2a534035847a027f60
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SHA1
6d0d1874f45df1f85ecf8a993a86d83f0325c926
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SHA256
e9b97a927e25832626d4b8476119733639c1349da154a7ba96ffa5ab20b309ca
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SHA512
a4f018e587d44a53f3af7d2e115f48b4a1baa29abe63cc006de64a79a67fd4ca757ee0b6298d9a1e9c232acae9a0bf38db9c8cd47c833d25b5f6a7ce0a7a9c27
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SSDEEP
196608:UK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:UDY6tiP3myRfzepXe4ny8gxzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4760 tuc3.tmp 3292 crtgame.exe 4812 crtgame.exe -
Loads dropped DLL 3 IoCs
pid Process 4760 tuc3.tmp 4760 tuc3.tmp 4760 tuc3.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 152.89.198.214 -
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-1HFOF.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0LAV8.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-D95UR.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-6SO94.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0TC3P.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-C32K8.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-UB41Q.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-DVPH8.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-ANO3F.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-UGD48.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-MH0MR.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-F80SM.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-7OJ5L.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-9C47D.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-771G3.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-PN71P.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-FGEPQ.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-6ML9R.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-G6G1G.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-5ACSP.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-ECUR0.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-OCUBV.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-3VLKN.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-0NRKO.tmp tuc3.tmp File opened for modification C:\Program Files (x86)\CRTGame\uninstall\unins000.dat tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-JF41T.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-43SDG.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-Q6IRB.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-M7L5T.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-9OSRL.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-JB7J8.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-HF1ET.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-A0LEP.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-P6TF2.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-I2N4K.tmp tuc3.tmp File opened for modification C:\Program Files (x86)\CRTGame\crtgame.exe tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-DTDB7.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\uninstall\is-5702L.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-EOTEJ.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-JQMGF.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-09MV4.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-08ERN.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\is-CIBPQ.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-P0G45.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-MQFQM.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-N0BER.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-RL16B.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-D96DO.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-71NDK.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-LETIG.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-784JN.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-OC3QE.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-D2KFM.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-JO26J.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\uninstall\unins000.dat tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-5RFRB.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-EIFRF.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-NIRFL.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-M679V.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-O56HN.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-BCRI0.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0SOHH.tmp tuc3.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-QUB1D.tmp tuc3.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4760 tuc3.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 4612 wrote to memory of 4760 4612 tuc3.exe 89 PID 4612 wrote to memory of 4760 4612 tuc3.exe 89 PID 4612 wrote to memory of 4760 4612 tuc3.exe 89 PID 4760 wrote to memory of 4456 4760 tuc3.tmp 91 PID 4760 wrote to memory of 4456 4760 tuc3.tmp 91 PID 4760 wrote to memory of 4456 4760 tuc3.tmp 91 PID 4760 wrote to memory of 3292 4760 tuc3.tmp 93 PID 4760 wrote to memory of 3292 4760 tuc3.tmp 93 PID 4760 wrote to memory of 3292 4760 tuc3.tmp 93 PID 4760 wrote to memory of 4696 4760 tuc3.tmp 94 PID 4760 wrote to memory of 4696 4760 tuc3.tmp 94 PID 4760 wrote to memory of 4696 4760 tuc3.tmp 94 PID 4760 wrote to memory of 4812 4760 tuc3.tmp 95 PID 4760 wrote to memory of 4812 4760 tuc3.tmp 95 PID 4760 wrote to memory of 4812 4760 tuc3.tmp 95 PID 4696 wrote to memory of 4416 4696 net.exe 97 PID 4696 wrote to memory of 4416 4696 net.exe 97 PID 4696 wrote to memory of 4416 4696 net.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc3.exe"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4612 -
C:\Users\Admin\AppData\Local\Temp\is-MSJ9N.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-MSJ9N.tmp\tuc3.tmp" /SL5="$B0060,6991381,54272,C:\Users\Admin\AppData\Local\Temp\tuc3.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:4456
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -i3⤵
- Executes dropped EXE
PID:3292
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 103⤵
- Suspicious use of WriteProcessMemory
PID:4696 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 104⤵PID:4416
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -s3⤵
- Executes dropped EXE
PID:4812
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
987KB
MD5b94e39283e0b6d33d109d4a4f5aed868
SHA1c31397ac336c213d030d376b3bd0b4287a94bc75
SHA2561a1e5dc644f21c61179d002818710d8c9b667170fc35c84c7983897dd195f478
SHA512aab6d715d03f952ac2f153049c7bc78114c56771fa38edf85e46c3a095c4b9aefe2401e8af19f71ae773f88863c0d6d9e24d71d2b489362884f22cd78e47f427
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Filesize
1.1MB
MD522b250a13570316583953b5cc8392c08
SHA11b326ae273902cb4a65409eb5b807090eae3a9c2
SHA2567986e3fde1290b0927fa93170ba062da8737e476a9ddb18d87e3b0301f3ab72e
SHA5129afdec68addb62ce67091b3027a5cacc70badba0cdf866264e628092a98a6f921d71c5a9f35c64185ca899590008fac7921f01766a3b8d6d569631730583034a
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Filesize
482KB
MD571fc1b89e533191ef271bec8b440babd
SHA10c2768354bc9f449c89f2702ddd6e5fda2831195
SHA25616852397313b7e5ad044ce292b59ac5209d0405ac0e2ea78218f7b94894d9747
SHA512e61a5f13178957466b8922b40f3f6b3f339d47bea36b6d4b8a372b92c20dd3cf9237c063a52120e939957dc60b9e06260b7c804bbf2123602f16f6f8e40105c2
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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