Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
29/02/2024, 20:11
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
af5d6a295c5c0d0a85d742b242fabc74.dll
Resource
win7-20240221-en
9 signatures
150 seconds
General
- Target af5d6a295c5c0d0a85d742b242fabc74.dll
- Size 2.8MB
- Sample240229-yyc8vabf64
- SHA256 dd6d62bdd243bbbe0c6c64c4b504bdd67f920b2144c11828beacdd5739bb6d70
- MD5 af5d6a295c5c0d0a85d742b242fabc74
- SHA1 d8b70a00e234a23c87fdc538e218ac01f291db1c
- SHA512 692891eaa81116757eb9a77315a71569fe9ce4b7d5c33e7d31f7d114e0dbe84d513f419e99f889712f85536be15d50cd916f83748db7896868323dd6cc237245
- SSDEEP 12288:EVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1NM:hfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/3480-4-0x0000000002400000-0x0000000002401000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 2236 MoUsoCoreWorker.exe 532 DmNotificationBroker.exe 3088 isoburn.exe - Loads dropped DLL 3 IoCs
pid Process 2236 MoUsoCoreWorker.exe 532 DmNotificationBroker.exe 3088 isoburn.exe - 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\Kzplwfok = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Crypto\\Keys\\mkYPe0Z9jY\\DmNotificationBroker.exe" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA MoUsoCoreWorker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA DmNotificationBroker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA isoburn.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3504 regsvr32.exe 3504 regsvr32.exe 3504 regsvr32.exe 3504 regsvr32.exe 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3480 wrote to memory of 1196 3480 Process not Found 91 PID 3480 wrote to memory of 1196 3480 Process not Found 91 PID 3480 wrote to memory of 2236 3480 Process not Found 92 PID 3480 wrote to memory of 2236 3480 Process not Found 92 PID 3480 wrote to memory of 3312 3480 Process not Found 93 PID 3480 wrote to memory of 3312 3480 Process not Found 93 PID 3480 wrote to memory of 532 3480 Process not Found 94 PID 3480 wrote to memory of 532 3480 Process not Found 94 PID 3480 wrote to memory of 4720 3480 Process not Found 95 PID 3480 wrote to memory of 4720 3480 Process not Found 95 PID 3480 wrote to memory of 3088 3480 Process not Found 96 PID 3480 wrote to memory of 3088 3480 Process not Found 96 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\af5d6a295c5c0d0a85d742b242fabc74.dll1⤵
- Suspicious behavior: EnumeratesProcesses
PID:3504
-
C:\Windows\system32\MoUsoCoreWorker.exeC:\Windows\system32\MoUsoCoreWorker.exe1⤵PID:1196
-
C:\Users\Admin\AppData\Local\EFFzsG\MoUsoCoreWorker.exeC:\Users\Admin\AppData\Local\EFFzsG\MoUsoCoreWorker.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2236
-
C:\Windows\system32\DmNotificationBroker.exeC:\Windows\system32\DmNotificationBroker.exe1⤵PID:3312
-
C:\Users\Admin\AppData\Local\NiM\DmNotificationBroker.exeC:\Users\Admin\AppData\Local\NiM\DmNotificationBroker.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:532
-
C:\Windows\system32\isoburn.exeC:\Windows\system32\isoburn.exe1⤵PID:4720
-
C:\Users\Admin\AppData\Local\Ciy5XS3pZ\isoburn.exeC:\Users\Admin\AppData\Local\Ciy5XS3pZ\isoburn.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3088
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Ciy5XS3pZ\UxTheme.dll
- Size 2.8MB
- SHA256 a97dd028361ce985d38a79beec1fdd20a3148fba641a4f7841c5ecea3b22e81c
- MD5 b736e971e192ea299f721bb7598d2158
- SHA1 de4ffcb0a07ad31f8efa2188beb64e232d18c90f
- SHA512 0f9f48757979130109bd2ee5d48e76dc8982d5fc282f9576b2699695dc052acbad6d617ec176cd1e3057a48e56af2d93eb790e99e1cebe239f8a8048dd7f21b2
- SSDEEP 12288:gVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:FfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Ciy5XS3pZ\isoburn.exe
- Size 119KB
- SHA256 9478c095afe212bce91d2de1a3c3647109f2d54e46b9bf70843e839324458567
- MD5 68078583d028a4873399ae7f25f64bad
- SHA1 a3c928fe57856a10aed7fee17670627fe663e6fe
- SHA512 25503a47c53fe83eeb56726b5a5eec5cb01bc783e866306f92242a7a8cbafa20a3209217e0f4561febfec78d2f64f1725727a6b2d3ee6da512618984d0bb0bc1
- SSDEEP 1536:eB/+hfSIh08Xx11iEG84z0mfTxC962iwCy/3ArWtEMJOyy5CkPAbeHZrQqf:BhXx/9mfVC960ZFJi5XEeHd3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\EFFzsG\MoUsoCoreWorker.exe
- Size 1.6MB
- SHA256 cbccb642725edb42e749e26ded68a16b3aa20e291a1a7793a2d4efebb75f99c0
- MD5 47c6b45ff22b73caf40bb29392386ce3
- SHA1 7e29a8d98fbb9b02d3d22e3576f4fd61ab50ffe9
- SHA512 c919ab84a497616e7969d58c251f4e6efc337b41ef6956864b86d66ae1437294c124232fec54433eab3a6518ed529f8445dd0b23706b2f42f3fa42e69711f331
- SSDEEP 24576:nsYeRAfGeAvpQd9b+UjQ/snt11NHtZ3udX620yHGKvWT:MAOd49b/RZ3udX6khv
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\EFFzsG\XmlLite.dll
- Size 2.8MB
- SHA256 944c14a922c4173b0b755e49175b6a9d69343aee3d585d89549c73b42fb04076
- MD5 e3fb6aa9b55c0007316ec108815cc6e2
- SHA1 811f194274d8392fb8bb3f0597c4d7f23d729d96
- SHA512 4abf05c57ff71823871bf4efe1aa87cabed01b38c0a45a3748483b095b5efa903e868101f1eb344e9284bf873ec9e9be455537cffeb26857db57c98318f259d2
- SSDEEP 12288:VVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:MfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\NiM\DUI70.dll
- Size 3.1MB
- SHA256 e01da4c968d7d115bb48d20db02bf493df268969ad6153fd867c7c108b9b1d99
- MD5 0fe9300b41585abfb99e0de7371d5298
- SHA1 05f926bc3d2c3e15f112ff8c595509ee27af79be
- SHA512 2796c24acd066f661411b7d7826e80ec73f1da704e332c59b38752f69f373915d5df9a378c841228a6c406efb850b2f038c36cf4ac71a014204d5f717c04c8ac
- SSDEEP 12288:/VI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1HOTjSz:2fP7fWsK5z9A+WGAW+V5SB6Ct4bnbS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\NiM\DmNotificationBroker.exe
- Size 32KB
- SHA256 f87537e5f26193a2273380f86cc9ac16d977f65b0eff2435e40be830fd99f7b5
- MD5 f0bdc20540d314a2aad951c7e2c88420
- SHA1 4ab344595a4a81ab5f31ed96d72f217b4cee790b
- SHA512 cb69e35b2954406735264a4ae8fe1eca1bd4575f553ab2178c70749ab997bda3c06496d2fce97872c51215a19093e51eea7cc8971af62ad9d5726f3a0d2730aa
- SSDEEP 768:EHm4Wvr464op2pdRyTgGjol0/D5sej34X:Cmx464/pdAjo+/FXj34X
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Xkmqd.lnk
- Size 1KB
- SHA256 f8849159a8fee08a7fabf0bddbeab0328b31074f9d39d4282434afaf043238af
- MD5 6c345b08ec4eef6d7aaa87777247c7f0
- SHA1 5644a384c691137997c8f560d055cafba2e3517b
- SHA512 ba66755ddfa9b0f8246c3db1ae85e080e85c31ac40c78bf3abaa733b84c39e52bd6506db97c5ec0ac82b16050fa894ad7745b2855c0e24cf557dd57c638a4aa1
- MD5 SHA1 SHA512