Analysis
- max time kernel
151s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
24/01/2024, 10:46
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
72069f253d65873ca37d22ed502e1911.dll
Resource
win7-20231215-en
9 signatures
150 seconds
General
- Target 72069f253d65873ca37d22ed502e1911.dll
- Size 3.7MB
- Sample240124-mtys7sgda5
- SHA256 95675ed8705063e78d6feec16544b7d5bbe62b4bc34b13462280c0ec046f0d71
- MD5 72069f253d65873ca37d22ed502e1911
- SHA1 551a0c0ea3996301997e8f133c3ab4933456b7db
- SHA512 113a86c3fd39d5cb43ccfbee1a8ca8a0f2c08d76439eb39c228f1a56432ab121f61696087b21df958b15b16b16c3169d5109aac638ab60b91eb4ce76b9dc52a1
- SSDEEP 12288:bVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1K8yQy:6fP7fWsK5z9A+WGAW+V5SB6Ct4bnbKn
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/3532-4-0x0000000003290000-0x0000000003291000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 2664 bdeunlock.exe 4136 mstsc.exe 1408 psr.exe - Loads dropped DLL 3 IoCs
pid Process 2664 bdeunlock.exe 4136 mstsc.exe 1408 psr.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gdfgjdhwrlpouj = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Themes\\Oj03\\mstsc.exe" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA bdeunlock.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA mstsc.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA psr.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3880 rundll32.exe 3880 rundll32.exe 3880 rundll32.exe 3880 rundll32.exe 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found 3532 Process not Found - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3532 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3532 wrote to memory of 1016 3532 Process not Found 88 PID 3532 wrote to memory of 1016 3532 Process not Found 88 PID 3532 wrote to memory of 2664 3532 Process not Found 89 PID 3532 wrote to memory of 2664 3532 Process not Found 89 PID 3532 wrote to memory of 2612 3532 Process not Found 90 PID 3532 wrote to memory of 2612 3532 Process not Found 90 PID 3532 wrote to memory of 4136 3532 Process not Found 93 PID 3532 wrote to memory of 4136 3532 Process not Found 93 PID 3532 wrote to memory of 2668 3532 Process not Found 94 PID 3532 wrote to memory of 2668 3532 Process not Found 94 PID 3532 wrote to memory of 1408 3532 Process not Found 96 PID 3532 wrote to memory of 1408 3532 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\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\72069f253d65873ca37d22ed502e1911.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:3880
-
C:\Windows\system32\bdeunlock.exeC:\Windows\system32\bdeunlock.exe1⤵PID:1016
-
C:\Users\Admin\AppData\Local\xW0\bdeunlock.exeC:\Users\Admin\AppData\Local\xW0\bdeunlock.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2664
-
C:\Windows\system32\mstsc.exeC:\Windows\system32\mstsc.exe1⤵PID:2612
-
C:\Users\Admin\AppData\Local\CkXWAn\mstsc.exeC:\Users\Admin\AppData\Local\CkXWAn\mstsc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4136
-
C:\Windows\system32\psr.exeC:\Windows\system32\psr.exe1⤵PID:2668
-
C:\Users\Admin\AppData\Local\pvrwm\psr.exeC:\Users\Admin\AppData\Local\pvrwm\psr.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1408
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\CkXWAn\VERSION.dll
- Size 3.8MB
- SHA256 8d0df2b516e3ed11d8e79855e9df02f354ca679d2b9c5b0ef19a980d993bf213
- MD5 8bb25105d9d5636041ccf2ca13433658
- SHA1 88470fc4fbfb1f4556606f5450147445f2fc2b85
- SHA512 33a5e5f6e053c0215f804d62743fc12e990d1c3f3e04eb1a891fd8bad7380c37c91d56927bb51f7d8c212e864ac18cc431eebdc8eecdd6a3dedc597d8c7f5639
- SSDEEP 12288:VVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:MfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\CkXWAn\mstsc.exe
- Size 1.5MB
- SHA256 1d1b6b2edac7ac6494c9eecda3afb804f679d7190f4d1a80929380e85743823f
- MD5 3a26640414cee37ff5b36154b1a0b261
- SHA1 e0c28b5fdf53a202a7543b67bbc97214bad490ed
- SHA512 76fc70ead57ddacd3dbcec1a4772bd46924d30b30018a36b13052d2f7272cc86b63bf85d5e4ec04aac08630d4b2637ca6e7d35c08ce6b675d63ed011f7d95ba2
- SSDEEP 24576:F1h+4DCd1MiEvi6wMUQ5/qOHTTinTysuJb3Ov2nh7uRXXGIGdcI1Sdp1v302TKGa:vh+4DCnMiEvi6wM5dqOHP0TY93Ov2nhw
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\pvrwm\XmlLite.dll
- Size 3.8MB
- SHA256 795e0cbd6ca8a2e7de9c73ced032b6626be2765a991eefc56894ed61a7cd3b28
- MD5 381797e980c95b8424c041050d038876
- SHA1 7b1bba3615385706886afc863ebdd56e891bfd5f
- SHA512 f7f39f1de9c268e2df962b9c2c4ce159952176687be8b9f9242ae01ef557761256ec4791abad6481c9db4da3ea556a72a5daaf2f9935526645c18c534e993c70
- SSDEEP 12288:3VI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:+fP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\pvrwm\psr.exe
- Size 232KB
- SHA256 4f0144f0e3e721b44babbf41b513942e4117f730546105480571f9c8fce56a1f
- MD5 ad53ead5379985081b7c3f1f357e545a
- SHA1 6f5aa32c1d15fbf073558fadafd046d97b60184e
- SHA512 433098bd74c34fbadfa447ef45cfa9dc076aef4cf7f2a0a6fe79d5e67f2504eebe8aa31fc1b7a4c5eeb20ede2c5485f75ad0fd77b4ecba3d68ca63313e6f6ea0
- SSDEEP 6144:4L4XIiZNNbLfYhTREhgXhW7LygUovIARZ8:4L4XBtwTR5XhMLyg6ARa
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\xW0\DUI70.dll
- Size 4.0MB
- SHA256 202e8fcf040fae82f7a4444ba2d7d2163b1e1fd24a373815746c051d66342e15
- MD5 684cce04b25930b040dbf691f6ff580b
- SHA1 ba17ae8cbf0893bd298169e0e6928d237211ec19
- SHA512 912df62be718a70c60d9d49e97595f6bdfb07ee8d005d99a29d9d6088a8d26ca8771f84290d2b9d4bdc2d8b8d2ce7917cc9ee4c78b0f9bf5c308fb56a088bf94
- SSDEEP 12288:/VI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1X96V:2fP7fWsK5z9A+WGAW+V5SB6Ct4bnbN6
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\xW0\bdeunlock.exe
- Size 279KB
- SHA256 dcfdd67bf3244ff86cadaaea50b43cce5479014ea2021c0c2fb40b7c856e5603
- MD5 fef5d67150c249db3c1f4b30a2a5a22e
- SHA1 41ca037b0229be9338da4d78244b4f0ea5a3d5f3
- SHA512 4ded9ca87d9d30c31ab2baededaa6e26681741ea1742d80c318173536c643a01bc049e03a03c3b45b3cb8860464a855830e12e87670503e65eedcdd5e9b2d1e7
- SSDEEP 6144:iwo3apA80WqqjCl5c6XSQ8gg28jA023fVs7nyatGt+SYFSW2:iw4apT0WNjCl5c6iQ7g28jALH+S+
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Btpzaqnqvnv.lnk
- Size 1KB
- SHA256 9283110c19063c935b355035646970db45652b7d5435f8bc0fde24b7c753bc02
- MD5 517a498ad016bf4c1bd8bdb48099201b
- SHA1 ad784f8544fdc339a0deeb22f5fd4c4649e7648a
- SHA512 bb47da33c6bea430ba27ec32d90835adba7a5543bff106625a5bb073cde01e5d13fb4dd65303ca68bcf25897971e2fd80635a4d678ba56f8533cf115fd32633a
- MD5 SHA1 SHA512