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Overview
overview
10Static
static
10a5bcc672d9...98.exe
windows7-x64
10a5bcc672d9...98.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
153s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
13/03/2024, 22:02
Behavioral task
behavioral1
Sample
a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.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
win7-20240221-en
Behavioral task
behavioral6
Sample
$TEMP/BroomSetup.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
$TEMP/syncUpd.exe
Resource
win7-20231129-en
General
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Target
a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe
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Size
2.0MB
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MD5
8622cfa4169dcf4067c9ae95f547e0ab
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SHA1
bc493149c64f6fe7a3b148582eae4c6c067d2c01
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SHA256
a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98
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SHA512
3e3acb0dc3cffb2cbbd368451aed2fbed8f432c0c025b93a18bd5a6b834b83eef3970640991e136e9215389538c68ba899f9683b89de4fc4c3c3fec0a20793bc
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SSDEEP
49152:L/Wc4f+MZYsh6bIm5KCoaOEHXhm95BBy/9z8LsvfMA7jYMd:CTfFym6bImUfexm95BOnd
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 behavioral2/memory/1172-80-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/1172-88-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/1172-91-0x00000000008B0000-0x00000000009B0000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/1172-96-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/1172-106-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/1172-125-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/1172-143-0x0000000000400000-0x000000000063B000-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 behavioral2/memory/1172-80-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/1172-88-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/1172-91-0x00000000008B0000-0x00000000009B0000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/1172-96-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/1172-106-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/1172-125-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/1172-143-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 6 IoCs
resource yara_rule behavioral2/memory/1172-80-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/1172-88-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/1172-96-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/1172-106-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/1172-125-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/1172-143-0x0000000000400000-0x000000000063B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
UPX dump on OEP (original entry point) 3 IoCs
resource yara_rule behavioral2/files/0x000700000002320f-33.dat UPX behavioral2/memory/1440-36-0x0000000000400000-0x0000000000930000-memory.dmp UPX behavioral2/memory/1440-81-0x0000000000400000-0x0000000000930000-memory.dmp UPX -
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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation syncUpd.exe Key value queried \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation FIJJKECFCF.exe -
Executes dropped EXE 3 IoCs
pid Process 1172 syncUpd.exe 1440 BroomSetup.exe 4280 FIJJKECFCF.exe -
Loads dropped DLL 5 IoCs
pid Process 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 1172 syncUpd.exe 1172 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 behavioral2/files/0x000700000002320f-33.dat upx behavioral2/memory/1440-36-0x0000000000400000-0x0000000000930000-memory.dmp upx behavioral2/memory/1440-81-0x0000000000400000-0x0000000000930000-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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ledger-Live Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FIJJKECFCF.exe" FIJJKECFCF.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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 16 api.ipify.org -
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 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.
pid Process 1624 schtasks.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4468 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1172 syncUpd.exe 1172 syncUpd.exe 1172 syncUpd.exe 1172 syncUpd.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe 4280 FIJJKECFCF.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4280 FIJJKECFCF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1440 BroomSetup.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 1780 wrote to memory of 1172 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 91 PID 1780 wrote to memory of 1172 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 91 PID 1780 wrote to memory of 1172 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 91 PID 1780 wrote to memory of 1440 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 92 PID 1780 wrote to memory of 1440 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 92 PID 1780 wrote to memory of 1440 1780 a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe 92 PID 1440 wrote to memory of 4520 1440 BroomSetup.exe 95 PID 1440 wrote to memory of 4520 1440 BroomSetup.exe 95 PID 1440 wrote to memory of 4520 1440 BroomSetup.exe 95 PID 4520 wrote to memory of 2632 4520 cmd.exe 97 PID 4520 wrote to memory of 2632 4520 cmd.exe 97 PID 4520 wrote to memory of 2632 4520 cmd.exe 97 PID 4520 wrote to memory of 1624 4520 cmd.exe 98 PID 4520 wrote to memory of 1624 4520 cmd.exe 98 PID 4520 wrote to memory of 1624 4520 cmd.exe 98 PID 1172 wrote to memory of 1600 1172 syncUpd.exe 115 PID 1172 wrote to memory of 1600 1172 syncUpd.exe 115 PID 1172 wrote to memory of 1600 1172 syncUpd.exe 115 PID 1600 wrote to memory of 4280 1600 cmd.exe 117 PID 1600 wrote to memory of 4280 1600 cmd.exe 117 PID 1600 wrote to memory of 4280 1600 cmd.exe 117 PID 4280 wrote to memory of 3664 4280 FIJJKECFCF.exe 118 PID 4280 wrote to memory of 3664 4280 FIJJKECFCF.exe 118 PID 4280 wrote to memory of 3664 4280 FIJJKECFCF.exe 118 PID 3664 wrote to memory of 4468 3664 cmd.exe 120 PID 3664 wrote to memory of 4468 3664 cmd.exe 120 PID 3664 wrote to memory of 4468 3664 cmd.exe 120
Processes
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C:\Users\Admin\AppData\Local\Temp\a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe"C:\Users\Admin\AppData\Local\Temp\a5bcc672d91ff60374275df4680a61fac1ade6562d16851dd3e3acd2d2efab98.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1780 -
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:1172 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FIJJKECFCF.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Local\Temp\FIJJKECFCF.exe"C:\Users\Admin\AppData\Local\Temp\FIJJKECFCF.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:4280 -
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\FIJJKECFCF.exe5⤵
- Suspicious use of WriteProcessMemory
PID:3664 -
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
PID:4468
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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:1440 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:4520 -
C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:2632
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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:1624
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
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
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
199KB
MD5c30ba6943a94d2e8ed78cd2ca1bc207d
SHA19f72b0a089b6c66a1e81b25fe0b652f3bbb85b79
SHA256d14472c3ab77a8e09ce45dbf6dfc686657539fc9520b510b4417f99114cfd7e8
SHA5128080ae1b569b6f0f65814758ee3cdbf45f51e1411c731850751980b9310eb3493f64b6b85e681059f9354ea07fb110f1865f5b613c6dc90290f6fcb3b5b194a0
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Filesize
128B
MD511bb3db51f701d4e42d3287f71a6a43e
SHA163a4ee82223be6a62d04bdfe40ef8ba91ae49a86
SHA2566be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331
SHA512907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2