Analysis
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max time kernel
147s -
max time network
139s -
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, 11:39
Static task
static1
Behavioral task
behavioral1
Sample
b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe
Resource
win10v2004-20231127-en
General
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Target
b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe
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Size
6.9MB
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MD5
40cc316e62b8bea0f8c59826a35f00ad
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SHA1
b7ccdfa40eddaf11b46ad16fad10230ae4809d8e
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SHA256
b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75
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SHA512
0a0f1fb8558dddcfa90c8689a8fce9a4b14e2aff1d7f347224b18fea6bb140101065ef159117d7ec15497df7d336b78514c5ec0c71506ed3233cf08ce991c856
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SSDEEP
196608:CyD4UUAnfcrSuleVp+jatZRGrrC/sF5wvACzj:V4Uvfc2RGatZcXF5uzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 3116 wmaformat.exe 1424 wmaformat.exe -
Loads dropped DLL 3 IoCs
pid Process 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.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-0LEH9.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-6RH3F.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-8RHD8.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-O3TQP.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-BMNSV.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-EEPFG.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-LRAR9.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-KB6Q0.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File opened for modification C:\Program Files (x86)\WMAFormat\uninstall\unins000.dat b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\uninstall\is-I1ULU.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-K8K6O.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-HN5N0.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\lessmsi\is-7N1D4.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-FSIJQ.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-2EG13.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-85FEL.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-PDL09.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-BA81C.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-625JS.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\uninstall\unins000.dat b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-UVU60.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-RG47O.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-T35A5.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-O7M34.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-NUNCL.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-LL87U.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\is-VNQDS.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-7O9JS.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-G89Q1.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-IFBV1.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-GU00R.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-IKT4G.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-D8H9P.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-5M7UK.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-36KUG.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-ATM41.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-14801.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-U15QV.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-PD029.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-3LB74.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-T9KSV.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-8C2GH.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-76UFI.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-3K4DM.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-4D6KG.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-4S877.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-PD0I9.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File opened for modification C:\Program Files (x86)\WMAFormat\wmaformat.exe b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-I61HQ.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-SNB6L.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-MFTU0.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\plugins\internal\is-ECM0R.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-GPGFC.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-EFD9V.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-I5JCO.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-OLT2N.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-F1RCI.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-9KLSK.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\stuff\is-D6IM4.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-0MDMF.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\plugins\internal\is-KREEB.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-AN7D4.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp File created C:\Program Files (x86)\WMAFormat\bin\x86\is-JHOIO.tmp b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 4036 wrote to memory of 2276 4036 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe 88 PID 4036 wrote to memory of 2276 4036 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe 88 PID 4036 wrote to memory of 2276 4036 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe 88 PID 2276 wrote to memory of 3396 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 93 PID 2276 wrote to memory of 3396 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 93 PID 2276 wrote to memory of 3396 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 93 PID 2276 wrote to memory of 3116 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 94 PID 2276 wrote to memory of 3116 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 94 PID 2276 wrote to memory of 3116 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 94 PID 2276 wrote to memory of 4680 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 98 PID 2276 wrote to memory of 4680 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 98 PID 2276 wrote to memory of 4680 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 98 PID 2276 wrote to memory of 1424 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 96 PID 2276 wrote to memory of 1424 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 96 PID 2276 wrote to memory of 1424 2276 b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp 96 PID 4680 wrote to memory of 4924 4680 net.exe 99 PID 4680 wrote to memory of 4924 4680 net.exe 99 PID 4680 wrote to memory of 4924 4680 net.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe"C:\Users\Admin\AppData\Local\Temp\b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4036 -
C:\Users\Admin\AppData\Local\Temp\is-CJG6D.tmp\b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp"C:\Users\Admin\AppData\Local\Temp\is-CJG6D.tmp\b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.tmp" /SL5="$90044,6986290,68096,C:\Users\Admin\AppData\Local\Temp\b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:3396
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C:\Program Files (x86)\WMAFormat\wmaformat.exe"C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i3⤵
- Executes dropped EXE
PID:3116
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C:\Program Files (x86)\WMAFormat\wmaformat.exe"C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s3⤵
- Executes dropped EXE
PID:1424
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
PID:4680 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵PID:4924
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.8MB
MD5ee8b22146a6e1f7cbba2c11bbca9b52b
SHA1f67a54573451b7bf873192100a1ef3e1c980f7a2
SHA2565a3ad1b1662ad7858be1fef617d98b04f0eb23b10fc806a89ca3de8ce36ccd77
SHA51216254c4914b639a7bde084fd1970c62e2a637b72a9cb86ab43f13da5c473e44612596b003389314eadc136034f726900b895b3180b1d8bfe4752d2e7fbcbeefa
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C:\Users\Admin\AppData\Local\Temp\is-CJG6D.tmp\b49760b9002d2a866a6d6717ecaf16b75fad484d191a4499b473ff89a1ab0e75.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