Analysis
- max time kernel
150s - max time network
95s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
- submitted
01/08/2024, 01:54
General
- Target 7ec087fb5c9ac0a2ed26f817ccbe872a_JaffaCakes118.dll
- Size 1.2MB
- Sample240801-cbr8lazfkf
- SHA256 dc23e2b53c2f9f56939cd4765aaea383fb37e638afe4db25e55fcc33a065792c
Malware Config
Signatures
- Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
- Dridex Shellcode 1 IoCs
Detects Dridex Payload shellcode injected in Explorer process.
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 4 IoCs
- Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- 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\7ec087fb5c9ac0a2ed26f817ccbe872a_JaffaCakes118.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\Narrator.exeC:\Windows\system32\Narrator.exe1⤵
-
C:\Users\Admin\AppData\Local\Um6nbLk\Narrator.exeC:\Users\Admin\AppData\Local\Um6nbLk\Narrator.exe1⤵
- Executes dropped EXE
-
C:\Windows\system32\recdisc.exeC:\Windows\system32\recdisc.exe1⤵
-
C:\Users\Admin\AppData\Local\ct35MDqh\recdisc.exeC:\Users\Admin\AppData\Local\ct35MDqh\recdisc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\rdpshell.exeC:\Windows\system32\rdpshell.exe1⤵
-
C:\Users\Admin\AppData\Local\x3RiHH\rdpshell.exeC:\Users\Admin\AppData\Local\x3RiHH\rdpshell.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\sessionmsg.exeC:\Windows\system32\sessionmsg.exe1⤵
-
C:\Users\Admin\AppData\Local\QLn4ah71c\sessionmsg.exeC:\Users\Admin\AppData\Local\QLn4ah71c\sessionmsg.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Accessibility Features
1Replay Monitor
Loading Replay Monitor...
Downloads
DUI70.dll
sessionmsg.exe
Narrator.exe
ReAgent.dll
recdisc.exe
WINSTA.dll
rdpshell.exe
Swgfzbi.lnk
memory/1916-2-0x00007FFDA14B0000-0x00007FFDA15E1000-memory.dmp
memory/1916-39-0x00007FFDA14B0000-0x00007FFDA15E1000-memory.dmp
memory/1916-0-0x00000210DF3B0000-0x00000210DF3B7000-memory.dmp
memory/1960-77-0x00007FFDAFB30000-0x00007FFDAFC63000-memory.dmp
memory/1960-74-0x00000221D97F0000-0x00000221D97F7000-memory.dmp
memory/1960-71-0x00007FFDAFB30000-0x00007FFDAFC63000-memory.dmp
memory/3296-91-0x000001D48E810000-0x000001D48E817000-memory.dmp
memory/3296-88-0x00007FFDAFAF0000-0x00007FFDAFC67000-memory.dmp
memory/3296-94-0x00007FFDAFAF0000-0x00007FFDAFC67000-memory.dmp
memory/3536-32-0x0000000002680000-0x0000000002687000-memory.dmp
memory/3536-13-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-8-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-9-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-11-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-12-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-6-0x00007FFDBE71A000-0x00007FFDBE71B000-memory.dmp
memory/3536-4-0x00000000026C0000-0x00000000026C1000-memory.dmp
memory/3536-10-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-7-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-14-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-16-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-17-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-36-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-34-0x00007FFDBEA90000-0x00007FFDBEAA0000-memory.dmp
memory/3536-25-0x0000000140000000-0x0000000140131000-memory.dmp
memory/3536-15-0x0000000140000000-0x0000000140131000-memory.dmp
memory/4600-60-0x00007FFDAFB30000-0x00007FFDAFC62000-memory.dmp
memory/4600-57-0x0000023A90B50000-0x0000023A90B57000-memory.dmp
memory/4600-54-0x00007FFDAFB30000-0x00007FFDAFC62000-memory.dmp