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Overview
overview
10Static
static
100fb249f0b6...82.exe
windows7-x64
100fb249f0b6...82.exe
windows10-2004-x64
10$PLUGINSDIR/INetC.dll
windows7-x64
3$PLUGINSDIR/INetC.dll
windows10-2004-x64
3$TEMP/BroomSetup.exe
windows7-x64
9$TEMP/BroomSetup.exe
windows10-2004-x64
9$TEMP/syncUpd.exe
windows7-x64
10$TEMP/syncUpd.exe
windows10-2004-x64
10Analysis
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max time kernel
148s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
12/03/2024, 02:06
Behavioral task
behavioral1
Sample
0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/INetC.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/INetC.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
$TEMP/BroomSetup.exe
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
$TEMP/BroomSetup.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
$TEMP/syncUpd.exe
Resource
win7-20240215-en
General
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Target
0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe
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Size
1.7MB
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MD5
d2a38a71e3577e4fbb4185b4ee935376
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SHA1
77d2ddc8fe67a720b75fd4027d143018f8c08791
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SHA256
0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482
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SHA512
3a8dd6797dda6732fff10f02951d940a41e9f3b435ce74dfa266c91c585245a16012f4925bf909932ad03bf7aa6098e4a4d09f1e39a9091541e7793f22c57529
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SSDEEP
49152:J60SmMKCWrpP2g/NXrHTvOy3YuaqaI0THZqNPbmvrKLlDqKz:40sKCEPLRrHTG0aq6ZZklDXz
Malware Config
Extracted
stealc
http://185.172.128.145
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url_path
/3cd2b41cbde8fc9c.php
Signatures
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Detect binaries embedding considerable number of MFA browser extension IDs. 7 IoCs
resource yara_rule behavioral1/memory/2020-42-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral1/memory/2020-44-0x0000000001B60000-0x0000000001C60000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral1/memory/2020-83-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral1/memory/2020-91-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral1/memory/2020-120-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral1/memory/2020-121-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral1/memory/2020-122-0x0000000001B60000-0x0000000001C60000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs -
Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 7 IoCs
resource yara_rule behavioral1/memory/2020-42-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral1/memory/2020-44-0x0000000001B60000-0x0000000001C60000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral1/memory/2020-83-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral1/memory/2020-91-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral1/memory/2020-120-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral1/memory/2020-121-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral1/memory/2020-122-0x0000000001B60000-0x0000000001C60000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
resource yara_rule behavioral1/memory/2020-42-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2020-83-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2020-91-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2020-120-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2020-121-0x0000000000400000-0x0000000001A34000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral1/files/0x0007000000015b85-23.dat UPX behavioral1/files/0x0007000000015b85-30.dat UPX behavioral1/memory/2484-32-0x0000000000400000-0x0000000000930000-memory.dmp UPX behavioral1/memory/2484-43-0x0000000000400000-0x0000000000930000-memory.dmp UPX -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 2020 syncUpd.exe 2484 BroomSetup.exe -
Loads dropped DLL 7 IoCs
pid Process 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 2020 syncUpd.exe 2020 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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resource yara_rule behavioral1/files/0x0007000000015b85-23.dat upx behavioral1/files/0x0007000000015b85-30.dat upx behavioral1/memory/2484-32-0x0000000000400000-0x0000000000930000-memory.dmp upx behavioral1/memory/2484-43-0x0000000000400000-0x0000000000930000-memory.dmp upx -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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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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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString syncUpd.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 syncUpd.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2616 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2020 syncUpd.exe 2020 syncUpd.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2484 BroomSetup.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1636 wrote to memory of 2020 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 28 PID 1636 wrote to memory of 2020 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 28 PID 1636 wrote to memory of 2020 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 28 PID 1636 wrote to memory of 2020 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 28 PID 1636 wrote to memory of 2484 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 30 PID 1636 wrote to memory of 2484 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 30 PID 1636 wrote to memory of 2484 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 30 PID 1636 wrote to memory of 2484 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 30 PID 1636 wrote to memory of 2484 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 30 PID 1636 wrote to memory of 2484 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 30 PID 1636 wrote to memory of 2484 1636 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe 30 PID 2484 wrote to memory of 2268 2484 BroomSetup.exe 31 PID 2484 wrote to memory of 2268 2484 BroomSetup.exe 31 PID 2484 wrote to memory of 2268 2484 BroomSetup.exe 31 PID 2484 wrote to memory of 2268 2484 BroomSetup.exe 31 PID 2268 wrote to memory of 2440 2268 cmd.exe 33 PID 2268 wrote to memory of 2440 2268 cmd.exe 33 PID 2268 wrote to memory of 2440 2268 cmd.exe 33 PID 2268 wrote to memory of 2440 2268 cmd.exe 33 PID 2268 wrote to memory of 2616 2268 cmd.exe 34 PID 2268 wrote to memory of 2616 2268 cmd.exe 34 PID 2268 wrote to memory of 2616 2268 cmd.exe 34 PID 2268 wrote to memory of 2616 2268 cmd.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe"C:\Users\Admin\AppData\Local\Temp\0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Users\Admin\AppData\Local\Temp\syncUpd.exeC:\Users\Admin\AppData\Local\Temp\syncUpd.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2020
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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:2484 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:2268 -
C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:2440
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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:2616
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.6MB
MD57cbaa93c4de0138cd777aa9af33f40b1
SHA1e60985baacde89d34cae9b4f9c6ce45e4a4a8f46
SHA25668dfb7c13eef28a78328e4ce8d3deaa5fd81624dae3d83916c34fbdb9e63a229
SHA512cb7b7c80c25dd7411d1057de6bee3eb9cf31916df36045053fa28754b98a5677322e2c79d91ed4fdd22dafadc32f03c83943692ec8c42f5a137b0e13165d0123
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Filesize
128B
MD511bb3db51f701d4e42d3287f71a6a43e
SHA163a4ee82223be6a62d04bdfe40ef8ba91ae49a86
SHA2566be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331
SHA512907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2
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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
1.7MB
MD5af8783c45b707e16314a0396d37d7df6
SHA10683470f850ad40d2cc9bd23da35919e33e9962f
SHA256dd23328525665f0164194f2f8cbfece40369df97f20a1d09019b7068e80c8f63
SHA5128c12fbcaff981402ff77ae1798a2a93eb4d1bb029fc11121c3f693a6d84971b551929959bff166a2dc3ce89c94edefdae6273993958586d5a7d43833e85b4cdf
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Filesize
21KB
MD52b342079303895c50af8040a91f30f71
SHA1b11335e1cb8356d9c337cb89fe81d669a69de17e
SHA2562d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f
SHA512550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47
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Filesize
282KB
MD554e0220b6f9b4f8f64382b71c6033595
SHA11f599189588a7a174a6b8a4587ae0df5c15bdd6f
SHA25647bccced008024236587fbe59d8419a52888f7b50b01cc6c7dc92101a0885607
SHA5120c4e27554ee5a090f8e8e1fa0b901cc5cc90fb6f1a3fb68c4a991096d8ea53a07e452d1ad119b046107deffe34173b21a5ff2f0062b98ae9b23945ea05ad8708