Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
10/03/2024, 22:00
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b6e3268dd394848b66297fa6072a147b6e1e491afd94930bcb8681a321ee1208.dll
Resource
win7-20240221-en
10 signatures
150 seconds
General
- Target b6e3268dd394848b66297fa6072a147b6e1e491afd94930bcb8681a321ee1208.dll
- Size 748KB
- Sample240310-1w4dcsch91
- SHA256 b6e3268dd394848b66297fa6072a147b6e1e491afd94930bcb8681a321ee1208
- MD5 f2ef7cf76092fcc99e6cbb55dc44d18f
- SHA1 6849579feff7faf44abbb26edba2b0f67df44313
- SHA512 c6506a6834463ec1e90dddcb38153634c7c57dce8eddd35b0271b1c54e48994939e1a8f54cdb9a8aa2a2b6c50715660681fe1169e92bea36fe8194a7ad7abf71
- SSDEEP 12288:TBim9Tnts08FbKuPcA8NAc1l/XkGaZKoRQIpRX2/0Ak2ng/Zi66wNdufAdN:N/nts0Q9K/0ooRQIxAk2wi0N/
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/3408-3-0x0000000003090000-0x0000000003091000-memory.dmp dridex_stager_shellcode -
resource yara_rule behavioral2/memory/1056-0-0x00007FF864FB0000-0x00007FF86506B000-memory.dmp dridex_payload behavioral2/memory/3408-24-0x0000000140000000-0x00000001400BB000-memory.dmp dridex_payload behavioral2/memory/3408-32-0x0000000140000000-0x00000001400BB000-memory.dmp dridex_payload behavioral2/memory/3408-43-0x0000000140000000-0x00000001400BB000-memory.dmp dridex_payload behavioral2/memory/1056-46-0x00007FF864FB0000-0x00007FF86506B000-memory.dmp dridex_payload behavioral2/memory/5036-53-0x00007FF856710000-0x00007FF8567CC000-memory.dmp dridex_payload behavioral2/memory/5036-58-0x00007FF856710000-0x00007FF8567CC000-memory.dmp dridex_payload behavioral2/memory/4360-69-0x00007FF856710000-0x00007FF8567CD000-memory.dmp dridex_payload behavioral2/memory/4360-74-0x00007FF856710000-0x00007FF8567CD000-memory.dmp dridex_payload behavioral2/memory/1992-90-0x00007FF856710000-0x00007FF8567CC000-memory.dmp dridex_payload - Executes dropped EXE 3 IoCs
pid Process 5036 ApplySettingsTemplateCatalog.exe 4360 rdpclip.exe 1992 SppExtComObj.Exe - Loads dropped DLL 3 IoCs
pid Process 5036 ApplySettingsTemplateCatalog.exe 4360 rdpclip.exe 1992 SppExtComObj.Exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Vdtkrnjrcdvlvc = "C:\\Users\\Admin\\AppData\\Roaming\\Sun\\Java\\GqHg\\rdpclip.exe" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ApplySettingsTemplateCatalog.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rdpclip.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SppExtComObj.Exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1056 regsvr32.exe 1056 regsvr32.exe 1056 regsvr32.exe 1056 regsvr32.exe 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found 3408 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3408 wrote to memory of 1780 3408 Process not Found 101 PID 3408 wrote to memory of 1780 3408 Process not Found 101 PID 3408 wrote to memory of 5036 3408 Process not Found 102 PID 3408 wrote to memory of 5036 3408 Process not Found 102 PID 3408 wrote to memory of 3892 3408 Process not Found 103 PID 3408 wrote to memory of 3892 3408 Process not Found 103 PID 3408 wrote to memory of 4360 3408 Process not Found 104 PID 3408 wrote to memory of 4360 3408 Process not Found 104 PID 3408 wrote to memory of 3588 3408 Process not Found 105 PID 3408 wrote to memory of 3588 3408 Process not Found 105 PID 3408 wrote to memory of 1992 3408 Process not Found 106 PID 3408 wrote to memory of 1992 3408 Process not Found 106 - 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\b6e3268dd394848b66297fa6072a147b6e1e491afd94930bcb8681a321ee1208.dll1⤵
- Suspicious behavior: EnumeratesProcesses
PID:1056
-
C:\Windows\system32\ApplySettingsTemplateCatalog.exeC:\Windows\system32\ApplySettingsTemplateCatalog.exe1⤵PID:1780
-
C:\Users\Admin\AppData\Local\Lka\ApplySettingsTemplateCatalog.exeC:\Users\Admin\AppData\Local\Lka\ApplySettingsTemplateCatalog.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:5036
-
C:\Windows\system32\rdpclip.exeC:\Windows\system32\rdpclip.exe1⤵PID:3892
-
C:\Users\Admin\AppData\Local\MArjok\rdpclip.exeC:\Users\Admin\AppData\Local\MArjok\rdpclip.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4360
-
C:\Windows\system32\SppExtComObj.ExeC:\Windows\system32\SppExtComObj.Exe1⤵PID:3588
-
C:\Users\Admin\AppData\Local\WYRl4K\SppExtComObj.ExeC:\Users\Admin\AppData\Local\WYRl4K\SppExtComObj.Exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1992
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Lka\ACTIVEDS.dll
- Size 752KB
- SHA256 850f4a4e39ec59754a6907f1c27c8893d3c6cb6442c5428fa5ceacfa929cda23
- MD5 521d46e9fa330ddd981ea4b8a84b5002
- SHA1 f1a6dec0109f48e684e8cd05acfd6be5f6e3745c
- SHA512 9257a1970adb5f5390e0f7ce6ddf312c3ba481054ebda0fee7cfe95cba9b307be0b465dcd55afe86c64ea8162248ed0a7f4558e83c1fa74976fb14603d877352
- SSDEEP 12288:UBim9Tnts08FbKuPcA8NAc1l/XkGaZKoRQIpRX2/0Ak2ng/Zi66wNdufAdN:w/nts0Q9K/0ooRQIxAk2wi0N/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Lka\ApplySettingsTemplateCatalog.exe
- Size 1.1MB
- SHA256 a462f29efaaa3c30411e76f32608a2ba5b7d21af3b9804e5dda99e342ba8c429
- MD5 13af41b1c1c53c7360cd582a82ec2093
- SHA1 7425f893d1245e351483ab4a20a5f59d114df4e1
- SHA512 c7c82acef623d964c520f1a458dbfe34099981de0b781fb56e14b1f82632e3a8437db6434e7c20988aa3b39efde47aab8d188e80845e841a13e74b079285706a
- SSDEEP 24576:fK331bQd4ugSeMM5a2lPmEWJtGWee/oDbshTuVQazd3YO6Y2eTNQVw5w5yZFOG/:fmRQyJSma2NmFDGWeqJ25w5y
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\MArjok\WINSTA.dll
- Size 756KB
- SHA256 d50f5ddfb1f0dc0dd7c43a6e5b4d8318aaca4fea9bdb894223b9aa2363595ea8
- MD5 3435b35320adea1cb6fcf8ad187910c1
- SHA1 252c70ea2acf067a581d1b7b9ecc4ce396ded666
- SHA512 7f8544ff2ddc522844e304ed2bbf69178156b27776bc7aecc553cba8716387aacdd35162d179235790aa9fe985efed08ea526394b338b600eee7806929788dd2
- SSDEEP 12288:8Bim9Tnts08FbKuPcA8NAc1l/XkGaZKoRQIpRX2/0Ak2ng/Zi66wNdufAdN:Y/nts0Q9K/0ooRQIxAk2wi0N/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\MArjok\rdpclip.exe
- Size 446KB
- SHA256 9d5be181d9309dea98039d2ce619afe745fc8a9a1b1c05cf860b3620b5203308
- MD5 a52402d6bd4e20a519a2eeec53332752
- SHA1 129f2b6409395ef877b9ca39dd819a2703946a73
- SHA512 632dda67066cff2b940f27e3f409e164684994a02bda57d74e958c462b9a0963e922be4a487c06126cecc9ef34d34913ef8315524bf8422f83c0c135b8af924e
- SSDEEP 12288:jrfeYamPVO2t51YqbAOKRJi03fhtV4Y398wXQJnHXQmArTo+7TsRXUK8mEvh13ps:veYamtO2b1YqbATRJi0vUyUwTFnR6qW
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WYRl4K\ACTIVEDS.dll
- Size 752KB
- SHA256 6126613dc1fd17936e72ed09582abadffa97f94c8221a8e7d13d37fc92d5baea
- MD5 0eaebb3e6d275e9c5959d0dee5917065
- SHA1 1b1c7f524491daf7b0d3d7e7d777c6f9ab1acd55
- SHA512 560d5c64b3885fcbf985c6a3464150e52caf1ed2fd922eabbada287a68acd3e242ba8ed2c51286b1516f0c002483eb76df4ddf68c68f39bc31c1cedeb8594546
- SSDEEP 12288:UBim9Tnts08FbKuPcA8NAc1l/XkGaZKoRQIpRX2/0Ak2ng/Zi66wNdufAdN:w/nts0Q9K/0ooRQIxAk2wi0N/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WYRl4K\SppExtComObj.Exe
- Size 559KB
- SHA256 2a6581576305771044f07ea0fef27f77859996dbf66c2017e938f90bfc1e010c
- MD5 728a78909aa69ca0e976e94482350700
- SHA1 6508dfcbf37df25cae8ae68cf1fcd4b78084abb7
- SHA512 22bf985e71afa58a1365cc733c0aa03dabd4b44e7c6a136eb5f9b870db14470201b4ef88a19fa3864af6c44e79e1a01d6f8806062d9d4861ba7dac77d82074f1
- SSDEEP 12288:NyoBXlQ2Uu47gFeOHgskuzvABNK7PCxIZLx59kIQbwjX2m:NzK2U/EFPPxzv2N4PCxe
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Txagdzatgusg.lnk
- Size 1KB
- SHA256 fdb7105052f8f7e7e466a926e665b347d5fefef3010008e1f2082bbd96ddaa12
- MD5 19121f6a6315a97843f2317b1d60d6c0
- SHA1 b592e6b321fb9c6d669102017d94d2fb7ebb31e2
- SHA512 095936f50457a19c710e70abc561dabde875c91f6be0c1caaf8cc11a48499a8faabddd745c00e35ae0fd6e3ad33c83a6450c5126c3dc1bdf65a952be6a3240d4
- MD5 SHA1 SHA512