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Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
04/12/2024, 22:08
General
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Target
a1b817aa4a6f7c6844a5820ded7b4288b4e17c4382ca6301358d45163711ae0cN.exe
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Size
218KB
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MD5
ef8b5f81a44d0d34d7f39a9b82bc2d70
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SHA1
c27928986537188ac3dbeab53e92df63e0f90e6f
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SHA256
a1b817aa4a6f7c6844a5820ded7b4288b4e17c4382ca6301358d45163711ae0c
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SHA512
1721f85523fb3e9c1312aa87f642e39f654ec8c224cdce65dfd8e13fd7f21511e17fb92808672f4113f5ec8700f2b0eac4ccb301e06a42a82fbc703eec9aa2be
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SSDEEP
3072:cvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:a1SyAJp6rjn1gOObn4b6h9h
Malware Config
Extracted
simda
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dga
gatyfus.com
lyvyxor.com
vojyqem.com
qetyfuv.com
puvyxil.com
gahyqah.com
lyryfyd.com
vocyzit.com
qegyqaq.com
purydyv.com
gacyzuz.com
lygymoj.com
vowydef.com
qexylup.com
pufymoq.com
gaqydeb.com
lyxylux.com
vofymik.com
qeqysag.com
puzylyp.com
gadyniw.com
lymysan.com
volykyc.com
qedynul.com
pumypog.com
galykes.com
lysynur.com
vonypom.com
qekykev.com
pupybul.com
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
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Simda family
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simda
Simda is an infostealer written in C++.
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 2 IoCs
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Modifies WinLogon 2 TTPs 2 IoCs
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Drops file in Windows directory 2 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a1b817aa4a6f7c6844a5820ded7b4288b4e17c4382ca6301358d45163711ae0cN.exe"C:\Users\Admin\AppData\Local\Temp\a1b817aa4a6f7c6844a5820ded7b4288b4e17c4382ca6301358d45163711ae0cN.exe"1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\apppatch\svchost.exe"C:\Windows\apppatch\svchost.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Modifies WinLogon
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
168B
MD5d57e3a550060f85d44a175139ea23021
SHA12c5cb3428a322c9709a34d04dd86fe7628f8f0a6
SHA25643edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c
SHA5120364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063
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Filesize
24KB
MD5119ac99b6f41ec2a6cfffd6968b3f3cc
SHA1d994041648687437fb7b8680f78324ce90f02635
SHA256c8b3547971390827912ae75c1cea11d3c88d0f3445636c7a734ec589e92f4e79
SHA512347d3602130c863fc6c1af840c8985c61d6e54e745deff7259a813b6d7644baa900bda53ff79acb1d1e33872968bbdf416c4b1490128c126849e34e4831288cb
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Filesize
1KB
MD5e9fa5eee5fa2e4d01a69bc45c94bf8e3
SHA192048271f9e2bd419593bd72c341f5c491be0cbf
SHA2569241e70d6f45d44edcbd55adaeb27f5a9aea49c1c201b7053cb07e7629a2d910
SHA512529c166f8548e9eec088197fd5f974d7f672e7599a9779f790ad805ee6240b99e6bf8300102b16d1b444d9b0c774e83fafc5ad96830a6f608dd0716954fa199c
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Filesize
1KB
MD5034ab4d275194039c6c455cde3b8e84e
SHA1cb42d259b77afd520e8a967d6066fc9fe36986b9
SHA256a403060945155684fae79884ce31047bab77c059f7a2de5d638c13a1eff21c8b
SHA51219b26ff747e8d40daa5e7093815a362a939ed788dbd8d5540f88898acf563d7d0e23fb2c30c4424c7bedc02d762f815494f56cae4892b9cd453312f468734f79
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Filesize
1KB
MD50c101e05553566968b4ba80d0f7a698b
SHA185944eb21096c0000b3676e49ec5fd99328765fc
SHA256b2e08a5133ec30fe39a8ae6385a9b636f6d4e81d19e0b4df882adaf507d610bb
SHA512047e00888f012d96241ce606a24611824326d4bc4e5ee31db1fc3b891d2fb86e219efa63c2c5c465b26ee14defc07e4fe7423e947454d9c701b299a8afd4d927
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Filesize
593B
MD5926512864979bc27cf187f1de3f57aff
SHA1acdeb9d6187932613c7fa08eaf28f0cd8116f4b5
SHA256b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
SHA512f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b
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Filesize
218KB
MD5485230818808af72d80f64e5108fad1b
SHA11a9883cbfb2e8d481cbb9231fa45e0cdc9d929fd
SHA25665d3c81b741b1022731d7d90fed8aefb1019488455f8975a2322e60cc2b9a7ed
SHA512922edd22bc0eaab0c96d593ec31043e19c91f8f332287c3344499f0026cb30335115b057a5365caecc068971980406cb038509a16866473c077044ae3ad33c10
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Filesize
380KB
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Filesize
1.7MB
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Filesize
324KB
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Filesize
324KB
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Filesize
380KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
672KB
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Filesize
1.7MB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
672KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
672KB
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Filesize
672KB
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Filesize
672KB
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Filesize
672KB
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Filesize
1.7MB
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Filesize
1.7MB