Analysis
- max time kernel
156s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
12/03/2024, 10:38
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
c32636712657033392037730b700c0b7.dll
Resource
win7-20240221-en
9 signatures
150 seconds
General
- Target c32636712657033392037730b700c0b7.dll
- Size 1.6MB
- Sample240312-mpdmgagg87
- SHA256 53b7fbcb11addf2dc8a2a87eb7f0288ac766ad0052cb25099a3ee7e0c241a503
- MD5 c32636712657033392037730b700c0b7
- SHA1 015e1642ccd38fb717e636ff18fa03d4234d692c
- SHA512 64a790a526a85254891b5087bbe8ced658b44421eab84fe0337bc55e5d061be70602edcbd5c586842a0b74788b77f5d6f2e16331743bcff58bf0901c3dccb79a
- SSDEEP 12288:KVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1a7n:XfP7fWsK5z9A+WGAW+V5SB6Ct4bnba
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/3324-4-0x00000000082E0000-0x00000000082E1000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 4208 Netplwiz.exe 1560 usocoreworker.exe 4980 psr.exe - Loads dropped DLL 3 IoCs
pid Process 4208 Netplwiz.exe 1560 usocoreworker.exe 4980 psr.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gvuuxctctfhbiie = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SystemCertificates\\My\\aR\\usocoreworker.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 Netplwiz.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA usocoreworker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA psr.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1592 rundll32.exe 1592 rundll32.exe 1592 rundll32.exe 1592 rundll32.exe 1592 rundll32.exe 1592 rundll32.exe 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found 3324 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3324 Process not Found 3324 Process not Found - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3324 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3324 wrote to memory of 4224 3324 Process not Found 91 PID 3324 wrote to memory of 4224 3324 Process not Found 91 PID 3324 wrote to memory of 4208 3324 Process not Found 92 PID 3324 wrote to memory of 4208 3324 Process not Found 92 PID 3324 wrote to memory of 3336 3324 Process not Found 93 PID 3324 wrote to memory of 3336 3324 Process not Found 93 PID 3324 wrote to memory of 1560 3324 Process not Found 94 PID 3324 wrote to memory of 1560 3324 Process not Found 94 PID 3324 wrote to memory of 3232 3324 Process not Found 97 PID 3324 wrote to memory of 3232 3324 Process not Found 97 PID 3324 wrote to memory of 4980 3324 Process not Found 98 PID 3324 wrote to memory of 4980 3324 Process not Found 98 - 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\c32636712657033392037730b700c0b7.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:1592
-
C:\Windows\system32\Netplwiz.exeC:\Windows\system32\Netplwiz.exe1⤵PID:4224
-
C:\Users\Admin\AppData\Local\hsRqIpMhI\Netplwiz.exeC:\Users\Admin\AppData\Local\hsRqIpMhI\Netplwiz.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4208
-
C:\Windows\system32\usocoreworker.exeC:\Windows\system32\usocoreworker.exe1⤵PID:3336
-
C:\Users\Admin\AppData\Local\a16HNY\usocoreworker.exeC:\Users\Admin\AppData\Local\a16HNY\usocoreworker.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1560
-
C:\Windows\system32\psr.exeC:\Windows\system32\psr.exe1⤵PID:3232
-
C:\Users\Admin\AppData\Local\RsObzSK\psr.exeC:\Users\Admin\AppData\Local\RsObzSK\psr.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4980
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\RsObzSK\VERSION.dll
- Size 1.6MB
- SHA256 242840cdc907b21bd8cc7a9c6084cf4f8331c7c096f79ca84077ed8089dcd583
- MD5 99288508393cd4aef95101f56b8303e4
- SHA1 d5b9ea9609bd7a5ad5d1f4433677a61b1531a9e5
- SHA512 e46cf2ddd082139ba198091c1456ed53751a9870a502a765cfc9d1e8872afc9365228d2469e1fa5b9142a69dc94fb52b2491264610cb6e2122e6efa3d3ab1056
- SSDEEP 12288:VVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:MfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\RsObzSK\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\a16HNY\XmlLite.dll
- Size 1.4MB
- SHA256 6545d1577b1d2296880b060e5e03323018686ade1589746dd1a1da5617d97442
- MD5 4768fe8e308d6adb5e284e7962a42b0b
- SHA1 08c96b6622c1db4fe223dc2c7dbd0d5de45e387f
- SHA512 53d54813acdf496e9397c0dfd2ca00fda78fc15196da27bd1edaea945f21e170c90bf14f6ae4b4bfa18db226b81dcb6e4a931d16d69bf937e6bac33e567f2491
- SSDEEP 12288:NVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:UfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\a16HNY\XmlLite.dll
- Size 1.4MB
- SHA256 a05aa18679c146ace388e11ac2ce1511d9848b97ff4fc7abb0e7e3395a940135
- MD5 7139744eca5906814aa3813dc04e5f5f
- SHA1 fb5e0e5c74840dfe78e50509ead971774e12d181
- SHA512 95c36e32cbc51bb1835ef7e45dc043b5d4fc1b8aaf2c0c4d3c0474625cd3b00c2d03fe9c59c7587df46decbbf7349f8b1ee2208f67889933faea740df54e1481
- SSDEEP 12288:NVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:UfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\a16HNY\usocoreworker.exe
- Size 1.3MB
- SHA256 0fb6688a32340036f3eaab4a09a82dee533bfb2ca266c36f6142083134de6f0e
- MD5 2c5efb321aa64af37dedc6383ce3198e
- SHA1 a06d7020dd43a57047a62bfb443091cd9de946ba
- SHA512 5448ea01b24af7444505bda80064849a2efcc459011d32879e021e836fd573c9b1b9d3b37291d3f53ff536c691ac13a545b12f318a16c8a367421986bbf002ed
- SSDEEP 24576:EfM0xqk6s7LG96HPxhTZFarHwSQY8APB2LucaG8kGQ:SM8jljHPxhVENQY8i2yca5q
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\hsRqIpMhI\NETPLWIZ.dll
- Size 1.6MB
- SHA256 34178e4a28c58f24b7dcbecac33a5552e5c98b2eaa1c00ef658d6f6e52b3a3dc
- MD5 b88b5cc453ce0ad00afe08d7dd89c21e
- SHA1 412f36f158b4892b481f20d6eca2bb7e0d394c76
- SHA512 7ffde4e61e7048e4957b710f369190ef18e814025b074ffb0e5803c838d162b68e4e1cf30f320f8bbc32378e1170282925c726f9aa302e1d2207e01446fc90c7
- SSDEEP 12288:DVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:SfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\hsRqIpMhI\Netplwiz.exe
- Size 40KB
- SHA256 8323b44b6e69f02356a5ab0d03a4fc87b953edcbd85c2b6281bf92bc0a3b224d
- MD5 520a7b7065dcb406d7eca847b81fd4ec
- SHA1 d1b3b046a456630f65d482ff856c71dfd2f335c8
- SHA512 7aea2810f38d1640d4aa87efbbe20783fe7b8e7f588864a3a384a37c91108d906abd89b235672608c98c46ed76db2b0039462098a1064ebe4108ec37b6087914
- SSDEEP 768:HCG9UkEMqenGsEzZZh8L2rdZTyflT0vKcMyK1AqfUrh6WeENiJDBPrxZt4p:i6nq3vp8cdlypa5MybNeWSDBPrxZap
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Vuzdvithyifjda.lnk
- Size 943B
- SHA256 23580036cd06a6c3f38f77155da6ac5a187da5afdcd3a85915ef326b2ac9634d
- MD5 8beb6b497ea4f56a62a2e73941d4933b
- SHA1 dd8fc8a1b8dc2704f17d323da973397753a542c3
- SHA512 d1cf47d25056c436d28e44f3788fd226ef3551d3723cafa6fd49be96575236086f19a9fb78b9de386a2a812692e45a9bcf142c547553b5f85c821d555b48e71b
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\aR\XmlLite.dll
- Size 1.6MB
- SHA256 7426efc5ab638bfb93ea8cd7e3b66c31c2e03e9ff59606961f0cf97050324cb3
- MD5 ab8fd68539e9aec7c8574f2fe3deb1d6
- SHA1 ed6a14987b0670a3c2432d38ff4ea8402f2a8ea7
- SHA512 6afef017104737749fbc1b3cfdf462abfc6137562b982c14ec998c302451aacf1a0a9e0b3cb7ce609fe69d927e96f238bcb77bc960370285bbf16b78f7914108
- SSDEEP 12288:NVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:UfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
- MD5 SHA1 SHA512 SSDEEP