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Analysis
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max time kernel
146s -
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
12/12/2023, 14:48
Static task
static1
Behavioral task
behavioral1
Sample
tuc4.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
tuc4.exe
Resource
win10v2004-20231130-en
General
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Target
tuc4.exe
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Size
7.1MB
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MD5
8c7f92f96f4e26620c1b114ef9a0132f
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SHA1
a758538ae1eb4dffcc7ef97186b8468871a41b92
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SHA256
398d131ce73ad5291e6fb7f732ee44e8eb1fea05f93f5e421885abe8a54ea18a
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SHA512
cde65f7d14b39d80b8b37fea3fb82e7998be09b5aa907d6a8b69d8b62a84e5f955c5c8ae371841a58f2d8ed4ce5b42ee68ab47d41042a3f3dbe3ff6e861eb9e8
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SSDEEP
196608:zxm5D5YUyRe7VvZKwamjGKAVW7R+gSoASGm8PvsLMwzj:HRepZKwaS79SoASGDP0Qwzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2452 tuc4.tmp 2300 numgif.exe 5028 numgif.exe -
Loads dropped DLL 3 IoCs
pid Process 2452 tuc4.tmp 2452 tuc4.tmp 2452 tuc4.tmp -
Unexpected DNS network traffic destination 3 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 Destination IP 152.89.198.214 Destination IP 194.49.94.194 -
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)\numGIF\bin\x86\is-SNMTQ.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-A9KAE.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\uninstall\is-1GB0O.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-1NLOR.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-S6LF3.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-IKHFB.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\is-1NGQH.tmp tuc4.tmp File opened for modification C:\Program Files (x86)\numGIF\numgif.exe tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-H6HMR.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-IQMCI.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-DNLPU.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-9FJPQ.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\stuff\is-TA6J8.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-1IF34.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-REFBR.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-1O3L6.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-1FNSR.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-A5LOB.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\stuff\is-1HI2V.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-3CFU2.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-CMQVP.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\stuff\is-GTM00.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-DHL85.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-EQ9UF.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-18MT3.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-4OIK9.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\lessmsi\is-0F20R.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-KME97.tmp tuc4.tmp File opened for modification C:\Program Files (x86)\numGIF\uninstall\unins000.dat tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-A0Q74.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-NDBG4.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-TEU22.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-FVBGM.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-VKT2I.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-BVGB3.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\uninstall\unins000.dat tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-2SI6C.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-NKE5A.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-S0402.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-4B3UE.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-EJM7U.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-76F39.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\plugins\internal\is-627IJ.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-2PMIH.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-T0K54.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-KO4CS.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-0GG7M.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-BJC17.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-GFCV1.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-1HU2U.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\plugins\internal\is-KCU2P.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-DDNNA.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-B4P18.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-4AQ8U.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-SEBC2.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-Q2NJ4.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-UBHKE.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-7ENN4.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-LN5CK.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-SF0OA.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-VQQU3.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\stuff\is-ND2M0.tmp tuc4.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-KFJ84.tmp tuc4.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2452 tuc4.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 3732 wrote to memory of 2452 3732 tuc4.exe 87 PID 3732 wrote to memory of 2452 3732 tuc4.exe 87 PID 3732 wrote to memory of 2452 3732 tuc4.exe 87 PID 2452 wrote to memory of 3396 2452 tuc4.tmp 91 PID 2452 wrote to memory of 3396 2452 tuc4.tmp 91 PID 2452 wrote to memory of 3396 2452 tuc4.tmp 91 PID 2452 wrote to memory of 2300 2452 tuc4.tmp 93 PID 2452 wrote to memory of 2300 2452 tuc4.tmp 93 PID 2452 wrote to memory of 2300 2452 tuc4.tmp 93 PID 2452 wrote to memory of 4048 2452 tuc4.tmp 96 PID 2452 wrote to memory of 4048 2452 tuc4.tmp 96 PID 2452 wrote to memory of 4048 2452 tuc4.tmp 96 PID 2452 wrote to memory of 5028 2452 tuc4.tmp 95 PID 2452 wrote to memory of 5028 2452 tuc4.tmp 95 PID 2452 wrote to memory of 5028 2452 tuc4.tmp 95 PID 4048 wrote to memory of 3208 4048 net.exe 97 PID 4048 wrote to memory of 3208 4048 net.exe 97 PID 4048 wrote to memory of 3208 4048 net.exe 97
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
PID:3732 -
C:\Users\Admin\AppData\Local\Temp\is-DTG34.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-DTG34.tmp\tuc4.tmp" /SL5="$6020A,7235080,121856,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
PID:2452 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:3396
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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -i3⤵
- Executes dropped EXE
PID:2300
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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -s3⤵
- Executes dropped EXE
PID:5028
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 123⤵
- Suspicious use of WriteProcessMemory
PID:4048 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 124⤵PID:3208
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.9MB
MD5cb1849ffab0ad7ce949f314fd2436f4b
SHA1712478d32d3387b567bab9baa63b660082681722
SHA256179221bda47bc5a97a7ec6accb39baa10715457c6009e769afd79c139712cbde
SHA512dde4c0aa7f2eb4a7aed9db9b40e4c560e18e3d4666849a8f7c40bef9bc1ebe93b7eee79fded6ee09806a1b8f8b9a21511f3d22a4910ab11e07dff22f6a957a28
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Filesize
1.8MB
MD5536507553acd1d52d4672c1a01378500
SHA1ef32954b0c10b7ddaaf75edcef1bdbbdf7d9917c
SHA2567393d1b4167d89d9826f086f79f72b3414209890f40eeeb14032a0bb2733990d
SHA512984ba1a3b1548c9ef20fdb041de28ea799ac5e69a455cc406f5262ecb6cd3ae6266d695710f5f8b732441075e446d97fc93a3199b2c3efbcc179e2487f6bed0d
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Filesize
461KB
MD53713b67501baa02cc326a6c9e67d37d9
SHA1133d5ff100f70b397f7eefbae69d8b1a6c485f01
SHA256e3967647c8e2732e6d33420c27178e514f2f9a177de833fd5f0c711d83c1f770
SHA51217c9da6c550dbfd5bd3d24d9948ec64cf2c43e6f40cb4a60ddfdfa214a6c0a07478b0dc44e2fd303563ad9cbab484a17291f059318302d52848d7ef102b1b2a4
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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