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Analysis
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max time kernel
145s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
10/12/2023, 20:42
Static task
static1
Behavioral task
behavioral1
Sample
tuc5.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
tuc5.exe
Resource
win10v2004-20231127-en
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
d1ffc275100ea20b9d1507a3abf50e3e
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SHA1
f283be58dd4d72a73c1cbefe60d7c57c4d257a93
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SHA256
c515b1f35dbc723a49f32a31a517630a24941631ffac4fa91675c96620ed31be
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SHA512
9b053073675d61b185d55e0bc94838dd21e990abd4fdb88cb3218c3c3aadf415e225dc69040ae823b3046bd8d4601f810c60ff38ba1bd71e90861951da11adaf
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SSDEEP
196608:sxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:kNztzQlcDPXus98d9Jzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2004 tuc5.tmp 1908 crtgame.exe 2772 crtgame.exe -
Loads dropped DLL 6 IoCs
pid Process 1728 tuc5.exe 2004 tuc5.tmp 2004 tuc5.tmp 2004 tuc5.tmp 2004 tuc5.tmp 2004 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 81.31.197.38 -
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-0J5OS.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-AAF53.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-8UMPP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-B81QN.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-F0RCA.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-9HF7U.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-AEQ17.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-7VCQB.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-UJJKQ.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-BE1TP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-V5JGE.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-BTDO2.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-S84UP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-B9D0U.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-STLCO.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-3J5PC.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\uninstall\is-IUSI2.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-G12P4.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-DGGF8.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-O17PH.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0UMEB.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-73R0B.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-TOUNG.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-V3OKG.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-0LV3A.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-90217.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-PRI8K.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-4A9PM.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-1TGUV.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-35I11.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-POQF5.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-V0N3N.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-JAU8V.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-CUSKQ.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-AKOG6.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-23Q6O.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-6HP6V.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-6KII8.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-5V6GQ.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-06348.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\is-P3U9D.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-UOO24.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-639NV.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-T12SP.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-TKQ9O.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-LTB95.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-8CCAD.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-BB2GE.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-JID33.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-6OGBI.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-GU4MF.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-SSNVI.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-KV30L.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\stuff\is-G68QO.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-QNGB7.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-UL585.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-08E2J.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\uninstall\unins000.dat tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-IPTKA.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-50LFV.tmp tuc5.tmp File created C:\Program Files (x86)\CRTGame\bin\x86\is-M9DQ0.tmp tuc5.tmp File opened for modification C:\Program Files (x86)\CRTGame\uninstall\unins000.dat tuc5.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2004 tuc5.tmp -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 1728 wrote to memory of 2004 1728 tuc5.exe 28 PID 1728 wrote to memory of 2004 1728 tuc5.exe 28 PID 1728 wrote to memory of 2004 1728 tuc5.exe 28 PID 1728 wrote to memory of 2004 1728 tuc5.exe 28 PID 1728 wrote to memory of 2004 1728 tuc5.exe 28 PID 1728 wrote to memory of 2004 1728 tuc5.exe 28 PID 1728 wrote to memory of 2004 1728 tuc5.exe 28 PID 2004 wrote to memory of 1556 2004 tuc5.tmp 31 PID 2004 wrote to memory of 1556 2004 tuc5.tmp 31 PID 2004 wrote to memory of 1556 2004 tuc5.tmp 31 PID 2004 wrote to memory of 1556 2004 tuc5.tmp 31 PID 2004 wrote to memory of 1908 2004 tuc5.tmp 29 PID 2004 wrote to memory of 1908 2004 tuc5.tmp 29 PID 2004 wrote to memory of 1908 2004 tuc5.tmp 29 PID 2004 wrote to memory of 1908 2004 tuc5.tmp 29 PID 2004 wrote to memory of 2744 2004 tuc5.tmp 34 PID 2004 wrote to memory of 2744 2004 tuc5.tmp 34 PID 2004 wrote to memory of 2744 2004 tuc5.tmp 34 PID 2004 wrote to memory of 2744 2004 tuc5.tmp 34 PID 2004 wrote to memory of 2772 2004 tuc5.tmp 33 PID 2004 wrote to memory of 2772 2004 tuc5.tmp 33 PID 2004 wrote to memory of 2772 2004 tuc5.tmp 33 PID 2004 wrote to memory of 2772 2004 tuc5.tmp 33 PID 2744 wrote to memory of 2820 2744 net.exe 35 PID 2744 wrote to memory of 2820 2744 net.exe 35 PID 2744 wrote to memory of 2820 2744 net.exe 35 PID 2744 wrote to memory of 2820 2744 net.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Users\Admin\AppData\Local\Temp\is-7V2IK.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-7V2IK.tmp\tuc5.tmp" /SL5="$40152,7025884,54272,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:2004 -
C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -i3⤵
- Executes dropped EXE
PID:1908
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:1556
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -s3⤵
- Executes dropped EXE
PID:2772
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 103⤵
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 104⤵PID:2820
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
425KB
MD5d17c5e7a1e37d5127fffa19e8f5fc8b4
SHA1d179cbee65a91f08fbc9459f59842eef8bf8f536
SHA2565f3f0b1c288a04416bf54092436bc1abb45b8951d44beaff3bd7fb27cfb264cd
SHA512ebda737a87290dd564bb2030ef9968d9819cc0ac9671306d8718995e47a21080c589b18600e694484c956b7d9bfbeb026ed43fa19a9cc60b2a8560ef56599db9
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Filesize
372KB
MD5a680c32d32493087ccbdc7de93db485a
SHA13264c4049f33327e49ef2c8a2a43ffa2d3b243eb
SHA2564f7b1065f6b17a135a5ad0f68829325e51d072ec3b27c0f7ee867fb1effd0756
SHA512ede77387be231f6d58a43380153a6f3ff628c48dbb0139c352a35d306bf3d090ba4b53f48f16652a45848767b67d8618aff59f1b284d89322c764109565b3372
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Filesize
283KB
MD59438a81b423675547f329269a6c8d797
SHA15441f64ec9f1aaca13283494e654ee1a3a864b50
SHA256d0f392ca3e8ddea42913963b9df003f9bcdd7a2630bcb1d9a02e28972da67b47
SHA512bcc72ff9531fcadc6698b9499f13d61fc24db7aa2791f09f9f640b3c245a7f02997209adb2ff70a221b4f2948b51e2a40eb2650db00b35300827544aa671e6ec
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
717KB
MD54d0a5b77a658cfc827d025ebccedb967
SHA16949949d98728b445aa5133c79fbf4e0dcb8f8f5
SHA2561064876be7d08a1127aec042875db5e38240ddf7bb75fefa2c13647166df7156
SHA512fa79c957db8476a88ebffc4ce5aff4a7fa0fc307e89e816db1bb6e48c5366d7fdc01fd35b02e01faef97ba83ac9d5088a59659b8874b5d59078d8b875503fc00
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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
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3