Analysis
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max time kernel
151s -
max time network
141s -
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 06:11
Static task
static1
Behavioral task
behavioral1
Sample
31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe
Resource
win10v2004-20231127-en
General
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Target
31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe
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Size
6.9MB
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MD5
06d62c87d0aade282bb2458c7ba39013
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SHA1
731397d231aee05350a8e3c18657e09f80054010
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SHA256
31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a
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SHA512
87c1afed07815f5de88e3125b40cb1d7eb8ca48e2242d91c3a8d85e938037cab624a3a38928ee525190f53c7245f79578e830cc8738a8503385c3a4d261e5c66
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SSDEEP
196608:CRW8Bq+q3WGhRQY914E1DF+V3bm/LCGNq3eUeKP3gdVfzj:CQeqbhPK4DFY4CtOUYVfzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 4792 wmaformat.exe 4872 wmaformat.exe -
Loads dropped DLL 3 IoCs
pid Process 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.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 141.98.234.31 -
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)\WMAFormat\bin\x86\is-PKBNG.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-7SDRF.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-T3K1H.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-JVO4T.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-S2V42.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-5OBN8.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-QB5NT.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-N4O3C.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-8CIHM.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-ES1VB.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\uninstall\is-LAEQT.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-G3J8H.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-HR9D4.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-P16H7.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-B6U9F.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File opened for modification C:\Program Files (x86)\WMAFormat\wmaformat.exe 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-V8KRT.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-M9327.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-U31EQ.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-3MUG8.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-9MNLA.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-7JKAH.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-2D8DN.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-JAUM0.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-UGAFU.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-M0G5D.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-3L0MC.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-TNV09.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-5JEPI.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-CFGUD.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-9KBVJ.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-6887B.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\uninstall\unins000.dat 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-QS1IO.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-U91A4.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-NCQF8.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-GRQ1J.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-C3Q2K.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-1G9FU.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-G7RSN.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-8HJ9T.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-FG48Q.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\is-CJA3D.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-9EV53.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-029G7.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-IJ447.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-4790H.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-IN67S.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-3E2KU.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\lessmsi\is-75M28.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-J4V00.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\plugins\internal\is-6F2RP.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-FG94J.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-ATOJ4.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-AK3IB.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\plugins\internal\is-NBE1S.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File opened for modification C:\Program Files (x86)\WMAFormat\uninstall\unins000.dat 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-ODHK1.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-1T4EK.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-295SI.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-OT2AL.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-5FGB3.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-6P6E0.tmp 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 3540 wrote to memory of 3636 3540 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe 88 PID 3540 wrote to memory of 3636 3540 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe 88 PID 3540 wrote to memory of 3636 3540 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe 88 PID 3636 wrote to memory of 3864 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 92 PID 3636 wrote to memory of 3864 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 92 PID 3636 wrote to memory of 3864 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 92 PID 3636 wrote to memory of 4792 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 93 PID 3636 wrote to memory of 4792 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 93 PID 3636 wrote to memory of 4792 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 93 PID 3636 wrote to memory of 1940 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 95 PID 3636 wrote to memory of 1940 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 95 PID 3636 wrote to memory of 1940 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 95 PID 3636 wrote to memory of 4872 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 97 PID 3636 wrote to memory of 4872 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 97 PID 3636 wrote to memory of 4872 3636 31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp 97 PID 1940 wrote to memory of 2468 1940 net.exe 98 PID 1940 wrote to memory of 2468 1940 net.exe 98 PID 1940 wrote to memory of 2468 1940 net.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe"C:\Users\Admin\AppData\Local\Temp\31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Users\Admin\AppData\Local\Temp\is-8BB18.tmp\31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp"C:\Users\Admin\AppData\Local\Temp\is-8BB18.tmp\31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp" /SL5="$90070,6953145,68096,C:\Users\Admin\AppData\Local\Temp\31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3636 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:3864
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C:\Program Files (x86)\WMAFormat\wmaformat.exe"C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i3⤵
- Executes dropped EXE
PID:4792
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵PID:2468
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C:\Program Files (x86)\WMAFormat\wmaformat.exe"C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s3⤵
- Executes dropped EXE
PID:4872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.8MB
MD50280b00d7cf6a1d0e836f72f5e94c0fb
SHA18f21d39aa6137c758f73c378042dde4001006946
SHA2565494dda0175037320250f0dca19188091efff397b7e3a7f181e449c4c216703c
SHA512072cf3bc6c580035a8f0ae719b03662d762a994138f879d2c6380cd8aff71b1c55731fb99658dec6a23756ad8fbafa7122480a6cd8434788eee6047181b7920e
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C:\Users\Admin\AppData\Local\Temp\is-8BB18.tmp\31cc91f7f48b74fc22f8560f4cec78bbf892b86113c067a015a1535b4d654b6a.tmp
Filesize687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303