Analysis
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max time kernel
61s -
max time network
89s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
24-11-2022 08:16
Static task
static1
Behavioral task
behavioral1
Sample
34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe
Resource
win7-20221111-en
General
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Target
34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe
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Size
931KB
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MD5
85efa9801ae7502036eed41d0de67613
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SHA1
f80dc5f836f89d1b02e07ef681c44c1deb8a9693
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SHA256
34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c
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SHA512
fcc92cd2e6a4cd306e837b6bc8ad018b913772aa28dd6c51e9d353d4a35cf69ffe2727b650d11b85ec98798ae9368de467cb62e38b539a0ba8df43d2bd43af76
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SSDEEP
24576:h1OYdaO0MWSUbvCXEQKSqGv8VWumF6RmcJozyPvpfd:h1OsiMWyUQ+GUVFIcHPvpfd
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
EfrESNzgsMDDHFT.exepid process 1376 EfrESNzgsMDDHFT.exe -
Loads dropped DLL 1 IoCs
Processes:
34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exepid process 960 34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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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 Chrome extension 3 IoCs
Processes:
EfrESNzgsMDDHFT.exedescription ioc process File created C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\dfklghjgiodmddmiakcnjajakpiggjoo\2.0\manifest.json EfrESNzgsMDDHFT.exe File created C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\dfklghjgiodmddmiakcnjajakpiggjoo\2.0\manifest.json EfrESNzgsMDDHFT.exe File created C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\dfklghjgiodmddmiakcnjajakpiggjoo\2.0\manifest.json EfrESNzgsMDDHFT.exe -
Drops file in System32 directory 4 IoCs
Processes:
EfrESNzgsMDDHFT.exedescription ioc process File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol EfrESNzgsMDDHFT.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI EfrESNzgsMDDHFT.exe File opened for modification C:\Windows\System32\GroupPolicy EfrESNzgsMDDHFT.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini EfrESNzgsMDDHFT.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
EfrESNzgsMDDHFT.exepid process 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe 1376 EfrESNzgsMDDHFT.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
EfrESNzgsMDDHFT.exedescription pid process Token: SeDebugPrivilege 1376 EfrESNzgsMDDHFT.exe Token: SeDebugPrivilege 1376 EfrESNzgsMDDHFT.exe Token: SeDebugPrivilege 1376 EfrESNzgsMDDHFT.exe Token: SeDebugPrivilege 1376 EfrESNzgsMDDHFT.exe Token: SeDebugPrivilege 1376 EfrESNzgsMDDHFT.exe Token: SeDebugPrivilege 1376 EfrESNzgsMDDHFT.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exedescription pid process target process PID 960 wrote to memory of 1376 960 34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe EfrESNzgsMDDHFT.exe PID 960 wrote to memory of 1376 960 34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe EfrESNzgsMDDHFT.exe PID 960 wrote to memory of 1376 960 34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe EfrESNzgsMDDHFT.exe PID 960 wrote to memory of 1376 960 34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe EfrESNzgsMDDHFT.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe"C:\Users\Admin\AppData\Local\Temp\34d09d4f5bb15430c9184075394ac7b95c73e32f57d1c089977df07bb5bb508c.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:960 -
C:\Users\Admin\AppData\Local\Temp\7zSBE4.tmp\EfrESNzgsMDDHFT.exe.\EfrESNzgsMDDHFT.exe2⤵
- Executes dropped EXE
- Drops Chrome extension
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1376
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD527840b7fdfa91e1aae075123ee6c8de3
SHA1becaa6fcc5dfb4b3dac5aca152bfb4219d0a3b21
SHA2562f677f60e6283a75b353da47987ebb4fb33326d4901fdc7b1817068c47e8a757
SHA51217a8db662576b1da1cb844110e20ad539e074dff2c97213bce65e611f1550ffa1932b5187e6c4b41cc7ec1f5c65e719c93e6afe1189199ab2767b00d5e7c6206
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Filesize
771KB
MD5e8ef8ed232808bfa240b33b376bb74a8
SHA1b7ebfbda42fb24594210d3f97921c5b33b88585d
SHA256a4265c00fc8eb9371329ddbc19e760b433ea9f4ab4e16d4d95682031940ad6c9
SHA51224a4de7ba07c5712a94cb8334764b6d23799dc4bb7153acf4eb7289ec4577b79bc9bf4adf6e0c65b13441d7783314ec4d9a13a61cf447124c43c44ff55fa8ef8
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Filesize
6KB
MD5c7ab9f426b23c5ae40bb883011854153
SHA1d411015197fd176b4317def2db5c86e291b2ab99
SHA256f60f291bb04fc9256318b7fe744e522f1497af9b58aac907dc9a99c6939c7580
SHA5122596b889bde96f15f18b7ede4cf91ddbbec688bbf936e42515bc784d46479778e7ba29925bae85541b05f819e4d93ae154d02ad88dddafe613f78a1e3bc59bcc
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Filesize
140B
MD53c6fb1bd9a99c2b7b31c9f127b2d14cb
SHA14630ddf9b5640f4cfd45a17bb12bc585796db993
SHA25672a0f2eb077b491075ef54d3fc0d6e26d80468f8324a5987f449fab52defafe5
SHA5124282dd5b61ec65062d127ff4ef8d9f53c03877335d22b979ad9ab8d3ffe04568f7f4a5a6b82159127c4a584e0af96b0122b46d66d99c09c7f66640db41dc9ef3
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Filesize
144B
MD5fca19198fd8af21016a8b1dec7980002
SHA1fd01a47d14004e17a625efe66cc46a06c786cf40
SHA256332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a
SHA51260f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47
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Filesize
531B
MD536d98318ab2b3b2585a30984db328afb
SHA1f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5
SHA256ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7
SHA5126f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a
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Filesize
498B
MD5640199ea4621e34510de919f6a54436f
SHA1dc65dbfad02bd2688030bd56ca1cab85917a9937
SHA256e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af
SHA512d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a
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C:\Users\Admin\AppData\Local\Temp\7zSBE4.tmp\[email protected]\bootstrap.js
Filesize2KB
MD5df13f711e20e9c80171846d4f2f7ae06
SHA156d29cda58427efe0e21d3880d39eb1b0ef60bee
SHA2566c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4
SHA5126c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e
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C:\Users\Admin\AppData\Local\Temp\7zSBE4.tmp\[email protected]\chrome.manifest
Filesize35B
MD52b05e2cb2baadd11f0cf4edcdb97d241
SHA18808626af052768c577bb94d61a55ee8a31a52b3
SHA256f084a8c7992925d13b6dd4a1eb2edcce68556084e029eafa6e9dbe84b323c545
SHA512b09c929043bc7fb61ca7fdd8e7af16d13f8dc96b3d1b4910bf9d184d84fb55c1b4a8e6535a2e70e16dc0a70d78acc2965b8223a8b555d7f855a4dd351206e3ac
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C:\Users\Admin\AppData\Local\Temp\7zSBE4.tmp\[email protected]\content\bg.js
Filesize9KB
MD5186f118789b27837157e9e722ecffb83
SHA1aa44bcacb925269e7ad897959e4083e75db2b257
SHA25664cebbf51f3c4e0218f142fb5f26ea3f22ef50387e3a89dd8fc2c9e3599f8795
SHA512be7d13f9af57f7c2b4749c9bff85ce7e8f03e778ae0f10df2e6e093aef149c78b3ddb1a55c7393537f28d391df4aa12f16a58c954823ef074ac57cb321f490ff
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C:\Users\Admin\AppData\Local\Temp\7zSBE4.tmp\[email protected]\install.rdf
Filesize592B
MD56ad4a6cd18b860ecf774855a69611bfb
SHA121bfb7a1044e00be463c6b4422ca1d27f6dc7be5
SHA25663e11d87fba8995318142d78db58ae54e895d48491cb6b713136091539fdabc8
SHA51255f7c386fba5c6c0ad3ffa9d71dc5ba2571fd71e16f753da7dabe860ab67a29b7f31ab03b7ff69a0e104b6b73d3b672a551466b68b123cab9fc2b5f12091336a
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Filesize
771KB
MD5e8ef8ed232808bfa240b33b376bb74a8
SHA1b7ebfbda42fb24594210d3f97921c5b33b88585d
SHA256a4265c00fc8eb9371329ddbc19e760b433ea9f4ab4e16d4d95682031940ad6c9
SHA51224a4de7ba07c5712a94cb8334764b6d23799dc4bb7153acf4eb7289ec4577b79bc9bf4adf6e0c65b13441d7783314ec4d9a13a61cf447124c43c44ff55fa8ef8