Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231130-en -
resource tags
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submitted
11/12/2023, 16:04
General
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Target
tuc4.exe
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Size
6.9MB
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MD5
909b6fdbe9c00b7996a3723e04dcf4a8
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SHA1
5bb44097ab529513d1c3c51f33eb340a593b407a
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SHA256
1eab934b6b47a322e5a86d6e608aaa70766edab5ed38a1d80657463fb6af0db5
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SHA512
085fb178bde17461827f619f944856f5f14a1509f1da00f50cd592f380bdcb0c237450d4af4f01829a2bdd0ca485a8be3342cd02b8b66f4386abe9223a8d2943
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SSDEEP
196608:LDoG3bFqjpLC0TSMLsn33HR83v9i8l7INzj:LDyNLCWZ2HS9iQ7INzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 7 IoCs
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Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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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
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Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of WriteProcessMemory 27 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc4.exe"C:\Users\Admin\AppData\Local\Temp\tuc4.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-E4KS9.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-E4KS9.tmp\tuc4.tmp" /SL5="$70122,6971036,68096,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
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 111⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
630KB
MD5cbc73c61e1d4aa5f4850ba6b5e928412
SHA1c79d08f2252de5c22991e732867df97d572dda8c
SHA256bf83616b3d1d38b7e79c4e8e3b7f31176cf9d39bbec4038da4d7ee4d5743833d
SHA51274cf59a0c10a9b1545627de3e06959e451fb0794b4f4b1bcdf774147faad0f3c7372e24b7897dda29eb8d16c4e62a63ac730d6505e9e84f006e28a72a4aaf91e
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Filesize
501KB
MD5dcb9ab6d5f2859530f990cad019995e7
SHA14e682fc29b7eeb61dd120bf8a0ce9e07b11a0336
SHA2567e5de42eeac86f869332af454c8fbec388f0d0f0017562ed4642a5334f70db85
SHA5121ae404692efe9b44cb219a19ad56274b2685927e9238a67c4f7a7f4ef4cd3ca8a2005bdce05361ec4c2ed24bb7bc43785308fdc4523c09ad7d35a7aa42aee105
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Filesize
373KB
MD5946e59cd19d8b3e7bb466603122ac9fa
SHA19bae3b9057e6c7f59aef996baca547ab98ab80c1
SHA25661123a293aef0ddeba147ddff4b7ff84744aa037d5cdf4fd4f15fbfae6f03aa1
SHA512b724830d8da2ef7be9b2e54940a405f0e287b255c6e45624fb0d7b957dfdf41f5424ec80b1e93f5353bb62794bed68d8149b1dd97f9d82998ca8a71076916257
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Filesize
151KB
MD5957836a7d77d7b3a60b314f8a755d151
SHA1a9babeda4e6f8e27018957a765ef6ec9e864d056
SHA256b5b4fa1c1dd4af7c9f5d2d6ea45f29576163e683590ca754d5757da1b0a083ce
SHA51239882ba24bdc0c6c490b7add245ac70df77aad48e09f806f5a082aeed64519f27313fb91321231302b4a331958b0ac99263e9e261e328917265fa41836fb6ef4
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Filesize
858KB
MD5a53a009b256a07830294b4f2a7d44471
SHA198695d00ee6df811d706dee0bb7b0e5983583f4a
SHA2566c28a49d5ba0d154e6ef8b75c3a5e28098615e1227b8ba247a6d7c0d85f1555a
SHA512472adcd627945880a65f751be636287c2ed1302600aab1e117dde96c2a2dc86cb6e0e71afe6318606c22aee64a08cff749c59730acf298d0a5fa4c8be736ed23
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Filesize
487KB
MD5419f83e7e96262517530007babe857a6
SHA1c1ba54951294562ab035aa46740f398fe74038d9
SHA256564d528d8718fbecc8d18dc9d14c225a2a2f51a5bc53850942cf5ac1811c19bb
SHA512f17948f0d1500d29b2b34d7c55386ef007b1f2ee5caeab362fff3fb603961d632212526ac8b73f9ebf0ea7a615312658d2cc5d9b0b814363ee6b8b12a79b49e2
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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
21KB
MD5faeb567b755d5100618ff8cdce9cccd1
SHA1cd0b3164d1f99149bbce9b65181690a7bd886b8d
SHA2561049f54a0e58a96f94a34825ecf24e1f6a9c8a56e7e9b16c9bd30af52d20a38e
SHA5124a0c0554cead04a720bccc1c817740fa4288f814c8cd052b5e90e2b5d744487ef2a59569d34f381fef003cd57fc4ce377405625e9e79f52eaca57cba7e1ba469
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
632KB
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Filesize
632KB
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Filesize
632KB
-
Filesize
1.8MB
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Filesize
1.8MB
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Filesize
96KB
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Filesize
96KB
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Filesize
1.8MB
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Filesize
4KB
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Filesize
752KB
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Filesize
4KB
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Filesize
1.8MB