Analysis
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max time kernel
153s -
max time network
146s -
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, 08:54
Static task
static1
Behavioral task
behavioral1
Sample
88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe
Resource
win10v2004-20231127-en
General
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Target
88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe
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Size
6.9MB
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MD5
2aac784202f835901452f621b40a7e3e
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SHA1
c3e3253446f44c249b1a0343b0a186f8feed13a4
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SHA256
88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e
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SHA512
6fc5f9bd6c0847dddda92963c08a7a62eb4594d42611d6efc15030c3c031b86b6a46b30e0a0287221788c9b82e3e101c819265c2326b8dcbd34bfabc4750fc99
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SSDEEP
98304:CzyQ4kc+v4jvDhsQepuwmrkz216aPE8d9X+X1M2CX27eGqc6hxTGZtsAzFjTidLb:XQ4PTP94zHQ9OX1M2CGjn6hDc6LKEzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 4416 wmaformat.exe 1820 wmaformat.exe -
Loads dropped DLL 3 IoCs
pid Process 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.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)\WMAFormat\bin\x86\is-BRRRM.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-HFCQA.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\plugins\internal\is-14MOB.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\plugins\internal\is-UUPAS.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-11APB.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-8ADI5.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-81H9K.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-QBNJS.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\uninstall\unins000.dat 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-IIPKF.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-1AC9K.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-50HJU.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\uninstall\is-B4H96.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-V9K53.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-TO667.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File opened for modification C:\Program Files (x86)\WMAFormat\uninstall\unins000.dat 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File opened for modification C:\Program Files (x86)\WMAFormat\wmaformat.exe 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-GO6EH.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-3BU6M.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-803PM.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-7OB5G.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-MO18N.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-602JO.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-L49RU.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-8DKPU.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-35KDV.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-Q64M8.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-JCPBR.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-LNDDA.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-EJ53F.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\lessmsi\is-853UA.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-F7766.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-KF0GR.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-MT8NG.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-MIQ6T.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-ERMHR.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-MO9A0.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\is-HV7U6.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-PE4O3.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-88QIC.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-HPA3D.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-9FCIC.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-O518H.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-K72OH.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-6NGKQ.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-K1JP7.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-4K1M2.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-KGCBK.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-HGKLP.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-57EU4.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-HTGM9.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-D2M7U.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-GAPQS.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-1JGGR.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-F3INO.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-ORS5A.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-MO98J.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-RNRPO.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-N52I4.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-D0GQT.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-R51VK.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-73IHQ.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-DJS5N.tmp 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2264 wrote to memory of 1072 2264 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe 88 PID 2264 wrote to memory of 1072 2264 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe 88 PID 2264 wrote to memory of 1072 2264 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe 88 PID 1072 wrote to memory of 2800 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 92 PID 1072 wrote to memory of 2800 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 92 PID 1072 wrote to memory of 2800 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 92 PID 1072 wrote to memory of 4416 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 93 PID 1072 wrote to memory of 4416 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 93 PID 1072 wrote to memory of 4416 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 93 PID 1072 wrote to memory of 4428 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 97 PID 1072 wrote to memory of 4428 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 97 PID 1072 wrote to memory of 4428 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 97 PID 1072 wrote to memory of 1820 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 96 PID 1072 wrote to memory of 1820 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 96 PID 1072 wrote to memory of 1820 1072 88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp 96 PID 4428 wrote to memory of 1328 4428 net.exe 98 PID 4428 wrote to memory of 1328 4428 net.exe 98 PID 4428 wrote to memory of 1328 4428 net.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe"C:\Users\Admin\AppData\Local\Temp\88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2264 -
C:\Users\Admin\AppData\Local\Temp\is-V0S1D.tmp\88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp"C:\Users\Admin\AppData\Local\Temp\is-V0S1D.tmp\88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp" /SL5="$80062,6985458,68096,C:\Users\Admin\AppData\Local\Temp\88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:2800
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C:\Program Files (x86)\WMAFormat\wmaformat.exe"C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i3⤵
- Executes dropped EXE
PID:4416
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C:\Program Files (x86)\WMAFormat\wmaformat.exe"C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s3⤵
- Executes dropped EXE
PID:1820
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
PID:4428 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵PID:1328
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.6MB
MD585ca8d5de514c047867af33021b5dc6b
SHA15b0d7a6bbc5d3efff470a0a778b83661ff3471c0
SHA256df16b593cd713db7634613b08216c2c9b0575cfddfc09c5311e3dc18833574d1
SHA5121240bb33f506ac21b9d3a9422b9019438f6cc0d8c5ffdf9502e524deab9b287ff45295162c24489ecbdc614a9f3ee981e1e23fdbe11e1a58a7bbfeb9a872db4c
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Filesize
1.8MB
MD5ce0b4d4d116f7ff827115c5ee2bfc0c4
SHA13a12cf70e643db463a3b33ec4a77c0b02acc3c82
SHA256c2a5278ab88c29c6c60460dab68829f3fdcfdf6d634a9f31d8342e890ab679d2
SHA5122d2ae0224032827b0a07a40faa34817ccce41742d3f45e124834f6808f39965d642715285fc4a3557bd428d6bea1de991b1768ba5796d2f6262ad0dff8e811bb
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303
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C:\Users\Admin\AppData\Local\Temp\is-V0S1D.tmp\88fe3277bc848eea92aa9452cfd055a973fc69722e944759bb61a71751d1010e.tmp
Filesize687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4