Analysis
- max time kernel
149s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
02/04/2024, 10:37
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
6712500bb0de148a99ec940160d3d61850e2ce3803adca8f39e9fa8621b8ea6f.dll
Resource
win7-20240221-en
0 signatures
150 seconds
General
- Target 6712500bb0de148a99ec940160d3d61850e2ce3803adca8f39e9fa8621b8ea6f.dll
- Size 1.0MB
- Sample240402-mnwrnafc41
- SHA256 6712500bb0de148a99ec940160d3d61850e2ce3803adca8f39e9fa8621b8ea6f
- MD5 369638ac700f3c41ebaba447d4048ff8
- SHA1 6c50a1abf9dc992e74a73279d40fb1a09368cdfe
- SHA512 5f7a1913e83cd443a3339af0a52c04a4de17c67be480646d9bb02c984196a0a1ec3d7419ee88ca12d219af927aad1859c47372e08ba6a7a35ad956d5dc4ce7f5
- SSDEEP 12288:ClORVEAueQmTmQKO2nMlqVaSEwzH7YxiCyJ86azEZy1f11pNxWOLPa:GORVEVNmaDznMlqVNE27dJ8J2inNxn
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/3444-4-0x0000000007450000-0x0000000007451000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 3704 PasswordOnWakeSettingFlyout.exe 992 shrpubw.exe 5036 recdisc.exe - Loads dropped DLL 3 IoCs
pid Process 3704 PasswordOnWakeSettingFlyout.exe 992 shrpubw.exe 5036 recdisc.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Domyyfn = "C:\\Users\\Admin\\AppData\\Roaming\\MICROS~1\\Windows\\PRINTE~1\\Ll1DIue9\\shrpubw.exe" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA recdisc.exe 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 PasswordOnWakeSettingFlyout.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA shrpubw.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4780 rundll32.exe 4780 rundll32.exe 4780 rundll32.exe 4780 rundll32.exe 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found 3704 PasswordOnWakeSettingFlyout.exe 3704 PasswordOnWakeSettingFlyout.exe 3444 Process not Found 3444 Process not Found 3444 Process not Found 3444 Process not Found - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeShutdownPrivilege 3444 Process not Found Token: SeCreatePagefilePrivilege 3444 Process not Found Token: SeShutdownPrivilege 3444 Process not Found Token: SeCreatePagefilePrivilege 3444 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3444 Process not Found 3444 Process not Found - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3444 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3444 wrote to memory of 3132 3444 Process not Found 92 PID 3444 wrote to memory of 3132 3444 Process not Found 92 PID 3444 wrote to memory of 3704 3444 Process not Found 93 PID 3444 wrote to memory of 3704 3444 Process not Found 93 PID 3444 wrote to memory of 464 3444 Process not Found 97 PID 3444 wrote to memory of 464 3444 Process not Found 97 PID 3444 wrote to memory of 992 3444 Process not Found 98 PID 3444 wrote to memory of 992 3444 Process not Found 98 PID 3444 wrote to memory of 2572 3444 Process not Found 101 PID 3444 wrote to memory of 2572 3444 Process not Found 101 PID 3444 wrote to memory of 5036 3444 Process not Found 102 PID 3444 wrote to memory of 5036 3444 Process not Found 102 - 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\6712500bb0de148a99ec940160d3d61850e2ce3803adca8f39e9fa8621b8ea6f.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:4780
-
C:\Windows\system32\PasswordOnWakeSettingFlyout.exeC:\Windows\system32\PasswordOnWakeSettingFlyout.exe1⤵PID:3132
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C:\Users\Admin\AppData\Local\9OZ\PasswordOnWakeSettingFlyout.exeC:\Users\Admin\AppData\Local\9OZ\PasswordOnWakeSettingFlyout.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:3704
-
C:\Windows\system32\shrpubw.exeC:\Windows\system32\shrpubw.exe1⤵PID:464
-
C:\Users\Admin\AppData\Local\K6xQnTjIr\shrpubw.exeC:\Users\Admin\AppData\Local\K6xQnTjIr\shrpubw.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:992
-
C:\Windows\system32\recdisc.exeC:\Windows\system32\recdisc.exe1⤵PID:2572
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C:\Users\Admin\AppData\Local\XfxO\recdisc.exeC:\Users\Admin\AppData\Local\XfxO\recdisc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:5036
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\9OZ\DUI70.dll
- Size 1.3MB
- SHA256 8e209f8070b4661da4c4bc2ad3dd75343b9f277ec484bc5bd258350db895da53
- MD5 70d8cd221caf49b029a58bfee0cb940d
- SHA1 6abd4f274c024ac6242fbf40473573a727ca586f
- SHA512 7c4b344e229abd1ea8dd952124afb1d8f7c78b0b7857847f38585dcfad5ce0d27e7f69d7f3d6eadf3a16a2b2a7f29679f29885b9e4dd01b3cd9cd5c6cdde4366
- SSDEEP 12288:0lORVEAueQmTmQKO2nMlqVaSEwzH7YxiCyJ86azEZy1f11pNxHyoth2E:4ORVEVNmaDznMlqVNE27dJ8J2inNx
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\9OZ\PasswordOnWakeSettingFlyout.exe
- Size 44KB
- SHA256 5e6ed524c955fb1ea3e24f132987143da3ec81db5041a0edcfa7bf3ac790eb06
- MD5 591a98c65f624c52882c2b238d6cd4c4
- SHA1 c960d08c19d777069cf265dcc281807fbd8502d7
- SHA512 1999f23c90d85857461f8ddc5342470296f6939a654ac015780c2977f293c1f799fc992462f3d4d9181c97ab960db3291b85ea7c0537edcb57755706b20b6074
- SSDEEP 768:fUprgu54VApRI3YhHmGAJhdnORk9JY8ANw+McZp0vH6RCQy+CsCMZWV0Kr6wD1PR:E548RI3YmJdT9JY1ecZG/6RCQyDqZetZ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\K6xQnTjIr\shrpubw.exe
- Size 59KB
- SHA256 6b84e6e55d8572d7edf0b6243d00abb651fcb0cddddac8461de5f9bb80035a2e
- MD5 9910d5c62428ec5f92b04abf9428eec9
- SHA1 05f27d7515e8ae1fa3bc974ec65b864ec4c9ac8b
- SHA512 01be043f7ff879a683e53962eec58456ba200d6787ea66581bb62669ae65d5e58a5577cdf23441165f7a535fce1dec933e3ad2465c72172b4a1488b24ce722cb
- SSDEEP 1536:YGanoDUow1Wt446VQFRlrDk7BOrkfRIUUgzwpRc:5nDKWt446VQF/r5k+jAww
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\K6xQnTjIr\srvcli.dll
- Size 1.0MB
- SHA256 9ff7f7c63272907a0d35d3a2a4fe499370e9356dec813722de81ada837fb32fb
- MD5 e771b5057e1f13bf3d637a5183299bf5
- SHA1 810bc8ddc1fbe88e5638d990c50f9a45167a8a45
- SHA512 bbb7d471384d31deffd94a25b81b804b764e6893ed47d19c01c8481b23c7c1e3f070dc8e68eefcdb1cc0f1e3d0166270a8192b80b5fe3a51fbe21463c206bb59
- SSDEEP 12288:hlORVEAueQmTmQKO2nMlqVaSEwzH7YxiCyJ86azEZy1f11pNx:3ORVEVNmaDznMlqVNE27dJ8J2inNx
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\XfxO\ReAgent.dll
- Size 1.0MB
- SHA256 a8864bc1a0bcab9c2012506722ec01466c3eec94deae0c116fc49faaf8a40252
- MD5 c53ea8d80aa6703ca44d313fc25216e8
- SHA1 733c5f6f9452eee5033aef934ed478c57e84ed68
- SHA512 2260d0dbba631cadf26c78bb6a4b50fb192ca329bb523cec14e5bd3981061efb73c93c8d70e602320b669074fe773da047e877186622ebee887d27fb2b5cc49a
- SSDEEP 12288:hlORVEAueQmTmQKO2nMlqVaSEwzH7YxiCyJ86azEZy1f11pNx:3ORVEVNmaDznMlqVNE27dJ8J2inNx
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\XfxO\recdisc.exe
- Size 193KB
- SHA256 0787b37cf197595b8149ffe3784f9c59eacde3616011f185513ff5c075a5ac4e
- MD5 18afee6824c84bf5115bada75ff0a3e7
- SHA1 d10f287a7176f57b3b2b315a5310d25b449795aa
- SHA512 517356165b401dbebf15437d3b17746aef5a6a4cc62a0afe45966abc92b4cf377eee4514a36ee28b1e88e55a22a2f8a6c997df45971e7f354b66ac7d9e141845
- SSDEEP 3072:ThO2UQCzj0vecS/SBeUzCbQTBQSAuegPO8evTq2Vy:TiQbvnSKeUWQTB9FegEv+2V
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Qoupr.lnk
- Size 1KB
- SHA256 66f4bd7bbd83480a7d89c42d99f11a6721244e01e1c8c780bd1f60a6a4473f45
- MD5 2d13649e960f7bf84f4190dddf88251c
- SHA1 721013a23cebf687b39f86d65ef5ce0941fa9fff
- SHA512 12fc2c631aab87bce0261dcd10a3bd20d6a84680454a2d1c1d8bd5b9df8396a39c8d2be9be90a3682ad4afbd42843842bb96598b633d5021739dc0e9a2e190ac
- MD5 SHA1 SHA512