Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
11-12-2023 16:07
Static task
static1
Behavioral task
behavioral1
Sample
tuc6.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
tuc6.exe
Resource
win10v2004-20231127-en
General
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Target
tuc6.exe
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Size
6.9MB
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MD5
a4bbb0eb88b738924c5edd956e258e1b
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SHA1
882b59fd476fc3cb94d52aed70791de3db5c11bd
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SHA256
8d81a4b85f6db3ec50a42c04702288018d81a39e2b165a966f27cc523e878819
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SHA512
594900899aee4179054c6cb2b6fbed4ad4f41b2584bcefbb376f6779b5567d993ed37e99adbe9fc36f89f3f3ecbcc6962f553c4ef659ca2db9096be4da63e2d7
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SSDEEP
196608:Tbw61woT7mRIc+DaTblZEZTXuNkrAk8TQNY0pzj:Tbw61woTCR9+OTbl0Zo/Gzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1752 tuc6.tmp 2012 wmaconvert.exe 4140 wmaconvert.exe -
Loads dropped DLL 3 IoCs
pid Process 1752 tuc6.tmp 1752 tuc6.tmp 1752 tuc6.tmp -
Unexpected DNS network traffic destination 2 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 194.49.94.194 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)\ConvertWMA\bin\x86\is-5O09U.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-1ECP1.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-THNN9.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-1LIAK.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-I2BTQ.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\stuff\is-ABTP1.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-TAN9I.tmp tuc6.tmp File opened for modification C:\Program Files (x86)\ConvertWMA\uninstall\unins000.dat tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-9FFII.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-1DC74.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-4GQSI.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-IAID3.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-S7R00.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-DE6E5.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-MSVLU.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\stuff\is-M47LJ.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-MUNP1.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\lessmsi\is-JNGK1.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\plugins\internal\is-2RBN1.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-TD82P.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-LRFTJ.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-DP1KG.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-OBBNJ.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-74H7M.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-0DS38.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-9345O.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-MNPS6.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\uninstall\unins000.dat tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-0JM5J.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-GT991.tmp tuc6.tmp File opened for modification C:\Program Files (x86)\ConvertWMA\wmaconvert.exe tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-G3PIK.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-3KMQ3.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-E766E.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\uninstall\is-DE0KH.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\stuff\is-I5093.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-N3OB7.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-0SJKH.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-BKQP7.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-MJCBC.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-NVD5I.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-JIFNQ.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-34U9A.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-IRT2L.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\stuff\is-DRE1R.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-V30UL.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-T1D0L.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-HSRDD.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-F3O9U.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-CCU7P.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-C4TKN.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-D5EJJ.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-UJRGV.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-530P5.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\is-5AIF3.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-HG8UV.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\plugins\internal\is-2183S.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-ATHTB.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-6FOUE.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-7TMP9.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-OM822.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-PV7IC.tmp tuc6.tmp File created C:\Program Files (x86)\ConvertWMA\bin\x86\is-TNRT3.tmp tuc6.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1752 tuc6.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 5076 wrote to memory of 1752 5076 tuc6.exe 87 PID 5076 wrote to memory of 1752 5076 tuc6.exe 87 PID 5076 wrote to memory of 1752 5076 tuc6.exe 87 PID 1752 wrote to memory of 4344 1752 tuc6.tmp 90 PID 1752 wrote to memory of 4344 1752 tuc6.tmp 90 PID 1752 wrote to memory of 4344 1752 tuc6.tmp 90 PID 1752 wrote to memory of 2012 1752 tuc6.tmp 92 PID 1752 wrote to memory of 2012 1752 tuc6.tmp 92 PID 1752 wrote to memory of 2012 1752 tuc6.tmp 92 PID 1752 wrote to memory of 1604 1752 tuc6.tmp 94 PID 1752 wrote to memory of 1604 1752 tuc6.tmp 94 PID 1752 wrote to memory of 1604 1752 tuc6.tmp 94 PID 1752 wrote to memory of 4140 1752 tuc6.tmp 95 PID 1752 wrote to memory of 4140 1752 tuc6.tmp 95 PID 1752 wrote to memory of 4140 1752 tuc6.tmp 95 PID 1604 wrote to memory of 2532 1604 net.exe 97 PID 1604 wrote to memory of 2532 1604 net.exe 97 PID 1604 wrote to memory of 2532 1604 net.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc6.exe"C:\Users\Admin\AppData\Local\Temp\tuc6.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Users\Admin\AppData\Local\Temp\is-JP8G0.tmp\tuc6.tmp"C:\Users\Admin\AppData\Local\Temp\is-JP8G0.tmp\tuc6.tmp" /SL5="$40232,6958728,68096,C:\Users\Admin\AppData\Local\Temp\tuc6.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:4344
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i3⤵
- Executes dropped EXE
PID:2012
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
PID:1604 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵PID:2532
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s3⤵
- Executes dropped EXE
PID:4140
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.1MB
MD549365f5aa48fe9dddbdd378db1968da8
SHA10ac3a9dc440e64957622ce40ed72f0d5ba3236b8
SHA2562071a1738f23623f3a6d2be2c3f4af87072f801d09cd335ec528aa6e33132f1f
SHA5127f09a98f8088a4da293460e1e74794d19ed29773be2031b03aa3df2bd8d6a2b20aa3c3b65d7da49ba6215482fb04afaca203f167d514395e4f14f4209b4593ad
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Filesize
576KB
MD533b2c4198e1a1652bbb5304fe62182b4
SHA15b3ef60009cc82f61860132a23249c74bf55e144
SHA256b2964638d44c004779c741d8b958033c8fcaecff8f272c0acb9b95b42440a26e
SHA5124033ac2b65726743eadeb5b96d17878f56a586e9a71b1da42141fce1c3de2ef324aef730288d6580005a17d26ce5e3caf8a6be8c8c9e49df0dc2ca78795fa66d
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Filesize
1.8MB
MD53a37f2b617ec8d6d2806d3fd94292c8d
SHA11a828850d72c3486a4aa30d9556941ec90f42536
SHA256e26ce90a7a3266084baf1a9d617bbddfe6acec4d086d9be047daa0afb8d2726d
SHA5122edd47804a5e393352aea25c91862823a99f756c7b1b2b5233e320279946ede8c2f74e05c08ca994cbc346115a1a5e980e2c968a9a52877fe0c281bf286530ca
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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