Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
31-12-2023 02:05
Behavioral task
behavioral1
Sample
23d9c56f73a31528a282aeaac2ba1e91.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
23d9c56f73a31528a282aeaac2ba1e91.exe
Resource
win10v2004-20231215-en
General
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Target
23d9c56f73a31528a282aeaac2ba1e91.exe
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Size
2.6MB
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MD5
23d9c56f73a31528a282aeaac2ba1e91
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SHA1
e90ad8d01677237742ac4c41027b90fad3f96e07
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SHA256
3c7c2d07a0ad34b903a72232cbbbcaf177acdbd4b6fbecd9a207572644822e02
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SHA512
35ff7bf2ad30c220fa02074fc00df0791201b8fc39a720eb53e76227f73c75aa3891f4229c3a3881e8cdf6d123f7e6b20588a30f67b396320cae46c7f1f3cac7
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SSDEEP
49152:9MKZTSTPpYXHQrRMbAsTXeKdEjZEmNQ8Cgqo8hay3:9MJpwHvMS1aX89oE3
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2108 23d9c56f73a31528a282aeaac2ba1e91.exe -
Executes dropped EXE 1 IoCs
pid Process 2108 23d9c56f73a31528a282aeaac2ba1e91.exe -
Loads dropped DLL 1 IoCs
pid Process 1676 23d9c56f73a31528a282aeaac2ba1e91.exe -
resource yara_rule behavioral1/memory/1676-1-0x0000000000400000-0x0000000000D9E000-memory.dmp upx behavioral1/files/0x00090000000122c4-14.dat upx behavioral1/files/0x00090000000122c4-13.dat upx behavioral1/files/0x00090000000122c4-11.dat upx -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405 23d9c56f73a31528a282aeaac2ba1e91.exe Set value (data) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405\Blob = 030000000100000014000000a053375bfe84e8b748782c7cee15827a6af5a405140000000100000014000000142eb317b75856cbae500940e61faf9d8b14c2c6040000000100000010000000e829e65d7c4307d6fbc13c179e037a360f0000000100000020000000444ebd67bb83f8807b3921e938ac9178b882bd50aadb11231f044cf5f08df7ce190000000100000010000000f044424c506513d62804c04f719403f91800000001000000100000002fe1f70bb05d7c92335bc5e05b984da620000000010000001a05000030820516308202fea003020102021100912b084acf0c18a753f6d62e25a75f5a300d06092a864886f70d01010b0500304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f74205831301e170d3230303930343030303030305a170d3235303931353136303030305a3032310b300906035504061302555331163014060355040a130d4c6574277320456e6372797074310b300906035504031302523330820122300d06092a864886f70d01010105000382010f003082010a0282010100bb021528ccf6a094d30f12ec8d5592c3f882f199a67a4288a75d26aab52bb9c54cb1af8e6bf975c8a3d70f4794145535578c9ea8a23919f5823c42a94e6ef53bc32edb8dc0b05cf35938e7edcf69f05a0b1bbec094242587fa3771b313e71cace19befdbe43b45524596a9c153ce34c852eeb5aeed8fde6070e2a554abb66d0e97a540346b2bd3bc66eb66347cfa6b8b8f572999f830175dba726ffb81c5add286583d17c7e709bbf12bf786dcc1da715dd446e3ccad25c188bc60677566b3f118f7a25ce653ff3a88b647a5ff1318ea9809773f9d53f9cf01e5f5a6701714af63a4ff99b3939ddc53a706fe48851da169ae2575bb13cc5203f5ed51a18bdb150203010001a382010830820104300e0603551d0f0101ff040403020186301d0603551d250416301406082b0601050507030206082b0601050507030130120603551d130101ff040830060101ff020100301d0603551d0e04160414142eb317b75856cbae500940e61faf9d8b14c2c6301f0603551d2304183016801479b459e67bb6e5e40173800888c81a58f6e99b6e303206082b0601050507010104263024302206082b060105050730028616687474703a2f2f78312e692e6c656e63722e6f72672f30270603551d1f0420301e301ca01aa0188616687474703a2f2f78312e632e6c656e63722e6f72672f30220603551d20041b30193008060667810c010201300d060b2b0601040182df13010101300d06092a864886f70d01010b0500038202010085ca4e473ea3f7854485bcd56778b29863ad754d1e963d336572542d81a0eac3edf820bf5fccb77000b76e3bf65e94dee4209fa6ef8bb203e7a2b5163c91ceb4ed3902e77c258a47e6656e3f46f4d9f0ce942bee54ce12bc8c274bb8c1982fa2afcd71914a08b7c8b8237b042d08f908573e83d904330a472178098227c32ac89bb9ce5cf264c8c0be79c04f8e6d440c5e92bb2ef78b10e1e81d4429db5920ed63b921f81226949357a01d6504c10a22ae100d4397a1181f7ee0e08637b55ab1bd30bf876e2b2aff214e1b05c3f51897f05eacc3a5b86af02ebc3b33b9ee4bdeccfce4af840b863fc0554336f668e136176a8e99d1ffa540a734b7c0d063393539756ef2ba76c89302e9a94b6c17ce0c02d9bd81fb9fb768d40665b3823d7753f88e7903ad0a3107752a43d8559772c4290ef7c45d4ec8ae468430d7f2855f18a179bbe75e708b07e18693c3b98fdc6171252aafdfed255052688b92dce5d6b5e3da7dd0876c842131ae82f5fbb9abc889173de14ce5380ef6bd2bbd968114ebd5db3d20a77e59d3e2f858f95bb848cdfe5c4f1629fe1e5523afc811b08dea7c9390172ffdaca20947463ff0e9b0b7ff284d6832d6675e1e69a393b8f59d8b2f0bd25243a66f3257654d3281df3853855d7e5d6629eab8dde495b5cdb5561242cdc44ec6253844506decce005518fee94964d44eca979cb45bc073a8abb847c2 23d9c56f73a31528a282aeaac2ba1e91.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 23d9c56f73a31528a282aeaac2ba1e91.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 23d9c56f73a31528a282aeaac2ba1e91.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1676 23d9c56f73a31528a282aeaac2ba1e91.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1676 23d9c56f73a31528a282aeaac2ba1e91.exe 2108 23d9c56f73a31528a282aeaac2ba1e91.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1676 wrote to memory of 2108 1676 23d9c56f73a31528a282aeaac2ba1e91.exe 28 PID 1676 wrote to memory of 2108 1676 23d9c56f73a31528a282aeaac2ba1e91.exe 28 PID 1676 wrote to memory of 2108 1676 23d9c56f73a31528a282aeaac2ba1e91.exe 28 PID 1676 wrote to memory of 2108 1676 23d9c56f73a31528a282aeaac2ba1e91.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\23d9c56f73a31528a282aeaac2ba1e91.exe"C:\Users\Admin\AppData\Local\Temp\23d9c56f73a31528a282aeaac2ba1e91.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\Users\Admin\AppData\Local\Temp\23d9c56f73a31528a282aeaac2ba1e91.exeC:\Users\Admin\AppData\Local\Temp\23d9c56f73a31528a282aeaac2ba1e91.exe2⤵
- Deletes itself
- Executes dropped EXE
- Modifies system certificate store
- Suspicious use of UnmapMainImage
PID:2108
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
887KB
MD563e5602c3ecf5cb5a43a14d3ed7f37c4
SHA1acccfde3f2bb83da89e239f4711b81804c9cf863
SHA2569f59b7813a660cc9c39d0627ca393c0633927f796ec49e0fdd5e04ef5fb40100
SHA512f5abbf0e94da72713ff003d002a4c36fbc2a84802d87567119ef96c60d6f62fb631d0622e34353c4d7257d166221f132f05ffd94510912ea7c7f1efdb3623bbb
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Filesize
385KB
MD57e5afae2965353164fa1ced81f83180f
SHA119d98c34760b3ee245108d183da45048692252da
SHA256c8c255799bda9861c99d3886e492302f8ad159b75911bc37364b57a7f7a87437
SHA5124cb9aa79870a3bd8ab62b9640187ac2cb7d005abda2272650354989856ad0fba2e473107759e15cb41b870614e9924bc811383db062f1c62b177d38a714ae03b
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Filesize
1.1MB
MD5e2db1f58d514d0fbac9e1d273d3043a3
SHA1f14380d556fc3c0ba0922104ca81447c5d07a02f
SHA2561dbd2b518d23a7d391c3514b3005ec8bcc9a74ac1982c06d29a9b97633a7ab4c
SHA51282f30a445393a27da7134ec94381ab49a7a92e1f5bcf3b072512fb4f264f5939f72d154ff3ff48aaae908a6cff0c27133567eb7605212403464059f4ee572641