Analysis
- max time kernel
151s - max time network
97s - platform
windows7_x64 - resource
win7v20210408 - submitted
17/09/2021, 09:36
Static task
static1
Behavioral task
behavioral1
Sample
169a95a8e428aed820b3cecb3edfdc797467eee633ef4dbd3bb1b9c3e70408c3.dll
Resource
win7v20210408
0 signatures
0 seconds
General
- Target 169a95a8e428aed820b3cecb3edfdc797467eee633ef4dbd3bb1b9c3e70408c3.dll
- Size 2.9MB
- Sample210917-lkz48saagj
- SHA256 169a95a8e428aed820b3cecb3edfdc797467eee633ef4dbd3bb1b9c3e70408c3
- MD5 14d1b3a2292f7c46c35cc3b29c72fd9c
- SHA1 db74919336fb8fb43bc296f00a854d60e6cb8056
- SHA512 a41788cff2d8252d2dc1051d90b3130521e01a3f43bbfecde62d16292bba722254e456e91098586078e7c372cedbcecaf826c02753c128bc6096ab2490a38239
- MD5 SHA1 SHA512
Malware Config
Signatures
-
resource yara_rule behavioral1/memory/1220-63-0x00000000025D0000-0x00000000025D1000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 1560 irftp.exe 1764 dwm.exe 1596 unregmp2.exe - Loads dropped DLL 7 IoCs
pid Process 1220 Process not Found 1560 irftp.exe 1220 Process not Found 1764 dwm.exe 1220 Process not Found 1596 unregmp2.exe 1220 Process not Found - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Axiifu = "C:\\Users\\Admin\\AppData\\Roaming\\MEDIAC~1\\YZBXYF~1\\dwm.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 irftp.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA dwm.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA unregmp2.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2016 rundll32.exe 2016 rundll32.exe 2016 rundll32.exe 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1220 Process not Found - Suspicious use of FindShellTrayWindow 5 IoCs
pid Process 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found - Suspicious use of SendNotifyMessage 7 IoCs
pid Process 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found 1220 Process not Found - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1220 wrote to memory of 572 1220 Process not Found 27 PID 1220 wrote to memory of 572 1220 Process not Found 27 PID 1220 wrote to memory of 572 1220 Process not Found 27 PID 1220 wrote to memory of 1560 1220 Process not Found 28 PID 1220 wrote to memory of 1560 1220 Process not Found 28 PID 1220 wrote to memory of 1560 1220 Process not Found 28 PID 1220 wrote to memory of 1888 1220 Process not Found 29 PID 1220 wrote to memory of 1888 1220 Process not Found 29 PID 1220 wrote to memory of 1888 1220 Process not Found 29 PID 1220 wrote to memory of 1764 1220 Process not Found 30 PID 1220 wrote to memory of 1764 1220 Process not Found 30 PID 1220 wrote to memory of 1764 1220 Process not Found 30 PID 1220 wrote to memory of 2032 1220 Process not Found 31 PID 1220 wrote to memory of 2032 1220 Process not Found 31 PID 1220 wrote to memory of 2032 1220 Process not Found 31 PID 1220 wrote to memory of 1596 1220 Process not Found 32 PID 1220 wrote to memory of 1596 1220 Process not Found 32 PID 1220 wrote to memory of 1596 1220 Process not Found 32
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\169a95a8e428aed820b3cecb3edfdc797467eee633ef4dbd3bb1b9c3e70408c3.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2016
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C:\Windows\system32\irftp.exeC:\Windows\system32\irftp.exe1⤵PID:572
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C:\Users\Admin\AppData\Local\xKqH\irftp.exeC:\Users\Admin\AppData\Local\xKqH\irftp.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1560
-
C:\Windows\system32\dwm.exeC:\Windows\system32\dwm.exe1⤵PID:1888
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C:\Users\Admin\AppData\Local\z63UlrZ\dwm.exeC:\Users\Admin\AppData\Local\z63UlrZ\dwm.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1764
-
C:\Windows\system32\unregmp2.exeC:\Windows\system32\unregmp2.exe1⤵PID:2032
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C:\Users\Admin\AppData\Local\x3mL\unregmp2.exeC:\Users\Admin\AppData\Local\x3mL\unregmp2.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1596