Overview
overview
10Static
static
7f85da1d5d8...b3.exe
windows7-x64
10f85da1d5d8...b3.exe
windows10-2004-x64
10$PLUGINSDIR/INetC.dll
windows7-x64
3$PLUGINSDIR/INetC.dll
windows10-2004-x64
3$TEMP/BroomSetup.exe
windows7-x64
7$TEMP/BroomSetup.exe
windows10-2004-x64
7$TEMP/syncUpd.exe
windows7-x64
10$TEMP/syncUpd.exe
windows10-2004-x64
10Analysis
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max time kernel
153s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
12-03-2024 21:21
Behavioral task
behavioral1
Sample
f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/INetC.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/INetC.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
$TEMP/BroomSetup.exe
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
$TEMP/BroomSetup.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
$TEMP/syncUpd.exe
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
$TEMP/syncUpd.exe
Resource
win10v2004-20240226-en
General
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Target
f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe
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Size
2.0MB
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MD5
bde3a7994a3c640861dcce48cf0d187c
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SHA1
f5dffd346152b803038d3b4e96ac4eb022a6531a
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SHA256
f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3
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SHA512
5e8bf0a4dff99aa09af659585f4ee1ca89f47a1669ebd6c5faf4dd3b4d1947a59f373ef3116a031e9cb790b872d2cd1bf1c6e27db14c08a909586982cb2bb98a
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SSDEEP
49152:Lz0WsMfQ5vRfPx4a2ANmmzWL5SqG6szWkfhdMQZLmc0:zsKQ5tx4S7K53NszpgcSZ
Malware Config
Extracted
stealc
http://185.172.128.145
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url_path
/3cd2b41cbde8fc9c.php
Signatures
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
syncUpd.exeIIEBAFCBKF.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation syncUpd.exe Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation IIEBAFCBKF.exe -
Executes dropped EXE 3 IoCs
Processes:
syncUpd.exeBroomSetup.exeIIEBAFCBKF.exepid process 1688 syncUpd.exe 500 BroomSetup.exe 1504 IIEBAFCBKF.exe -
Loads dropped DLL 4 IoCs
Processes:
f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exesyncUpd.exepid process 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe 1688 syncUpd.exe 1688 syncUpd.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\BroomSetup.exe upx behavioral2/memory/500-23-0x0000000000400000-0x0000000000930000-memory.dmp upx behavioral2/memory/500-81-0x0000000000400000-0x0000000000930000-memory.dmp upx -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
IIEBAFCBKF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ledger-Live Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IIEBAFCBKF.exe" IIEBAFCBKF.exe -
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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
syncUpd.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 syncUpd.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString syncUpd.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
syncUpd.exeIIEBAFCBKF.exepid process 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1688 syncUpd.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe 1504 IIEBAFCBKF.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
IIEBAFCBKF.exedescription pid process Token: SeDebugPrivilege 1504 IIEBAFCBKF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
BroomSetup.exepid process 500 BroomSetup.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exeBroomSetup.execmd.exesyncUpd.execmd.exeIIEBAFCBKF.execmd.exedescription pid process target process PID 1344 wrote to memory of 1688 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe syncUpd.exe PID 1344 wrote to memory of 1688 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe syncUpd.exe PID 1344 wrote to memory of 1688 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe syncUpd.exe PID 1344 wrote to memory of 500 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe BroomSetup.exe PID 1344 wrote to memory of 500 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe BroomSetup.exe PID 1344 wrote to memory of 500 1344 f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe BroomSetup.exe PID 500 wrote to memory of 3924 500 BroomSetup.exe cmd.exe PID 500 wrote to memory of 3924 500 BroomSetup.exe cmd.exe PID 500 wrote to memory of 3924 500 BroomSetup.exe cmd.exe PID 3924 wrote to memory of 4952 3924 cmd.exe chcp.com PID 3924 wrote to memory of 4952 3924 cmd.exe chcp.com PID 3924 wrote to memory of 4952 3924 cmd.exe chcp.com PID 3924 wrote to memory of 1096 3924 cmd.exe schtasks.exe PID 3924 wrote to memory of 1096 3924 cmd.exe schtasks.exe PID 3924 wrote to memory of 1096 3924 cmd.exe schtasks.exe PID 1688 wrote to memory of 3116 1688 syncUpd.exe cmd.exe PID 1688 wrote to memory of 3116 1688 syncUpd.exe cmd.exe PID 1688 wrote to memory of 3116 1688 syncUpd.exe cmd.exe PID 3116 wrote to memory of 1504 3116 cmd.exe IIEBAFCBKF.exe PID 3116 wrote to memory of 1504 3116 cmd.exe IIEBAFCBKF.exe PID 3116 wrote to memory of 1504 3116 cmd.exe IIEBAFCBKF.exe PID 1504 wrote to memory of 1096 1504 IIEBAFCBKF.exe cmd.exe PID 1504 wrote to memory of 1096 1504 IIEBAFCBKF.exe cmd.exe PID 1504 wrote to memory of 1096 1504 IIEBAFCBKF.exe cmd.exe PID 1096 wrote to memory of 264 1096 cmd.exe PING.EXE PID 1096 wrote to memory of 264 1096 cmd.exe PING.EXE PID 1096 wrote to memory of 264 1096 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe"C:\Users\Admin\AppData\Local\Temp\f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1344 -
C:\Users\Admin\AppData\Local\Temp\syncUpd.exeC:\Users\Admin\AppData\Local\Temp\syncUpd.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\IIEBAFCBKF.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Users\Admin\AppData\Local\Temp\IIEBAFCBKF.exe"C:\Users\Admin\AppData\Local\Temp\IIEBAFCBKF.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\IIEBAFCBKF.exe5⤵
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
PID:264
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C:\Users\Admin\AppData\Local\Temp\BroomSetup.exeC:\Users\Admin\AppData\Local\Temp\BroomSetup.exe2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:500 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:3924 -
C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:4952
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "MalayamaraUpdate" /tr "'C:\Users\Admin\AppData\Local\Temp\Updater.exe'" /sc minute /mo 30 /F4⤵
- Creates scheduled task(s)
PID:1096
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3448 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:31⤵PID:1076
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:81⤵PID:1592
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
2B
MD5d751713988987e9331980363e24189ce
SHA197d170e1550eee4afc0af065b78cda302a97674c
SHA2564f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af
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Filesize
40B
MD520d4b8fa017a12a108c87f540836e250
SHA11ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA2566028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856
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Filesize
1.7MB
MD5eee5ddcffbed16222cac0a1b4e2e466e
SHA128b40c88b8ea50b0782e2bcbb4cc0f411035f3d5
SHA2562a40e5dccc7526c4982334941c90f95374460e2a816e84e724e98c4d52ae8c54
SHA5128f88901f3ebd425818db09f268df19ccf8a755603f04e9481bcf02b112a84393f8a900ead77f8f971bfa33fd9fa5636b7494aaee864a0fb04e3273911a4216dc
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Filesize
101KB
MD542b838cf8bdf67400525e128d917f6e0
SHA1a578f6faec738912dba8c41e7abe1502c46d0cae
SHA2560e4ffba62ce9a464aa1b7ff9f1e55ace8f51ff1e15102d856f801a81f8b4607d
SHA512f64b39d885375251ab7db72c57dc5b5095f0c6412169f1035d1f6a25b8415a2a01004d06bfa0267cf683ef7dea7a9f969ad43fde5a4376f1fcb65a57403433c0
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Filesize
21KB
MD52b342079303895c50af8040a91f30f71
SHA1b11335e1cb8356d9c337cb89fe81d669a69de17e
SHA2562d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f
SHA512550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47
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Filesize
200KB
MD5c722591f624fb69970f246b8c81d830f
SHA185516decea5d6987bebe39cbadf36053beaf4bb0
SHA25613cd1152a19fdac6581cac2bd822f34bd3026ea1783ff231e299b6d28c046a6a
SHA512822584c5c8a0813af4d845e80919776c71a43464ab719d1c303ebaae6a8ed47763183566bedc9be2e8c44de8ee6fd62d1e12be471e5d5c73ae4b1dcdaa34a908
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Filesize
128B
MD511bb3db51f701d4e42d3287f71a6a43e
SHA163a4ee82223be6a62d04bdfe40ef8ba91ae49a86
SHA2566be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331
SHA512907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2