d06d804ed592436dea486beb37ad20ec83ba44ff71a3524af72b61ccd7affce7

Analysis

max time kernel
157s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2024, 16:01

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General

Target

56e4c467f5c0fd924bd6d59fa3ba0895.exe
Size

49KB
MD5

56e4c467f5c0fd924bd6d59fa3ba0895
SHA1

181430094ab36885611ce648d306064a2fba5131
SHA256

d06d804ed592436dea486beb37ad20ec83ba44ff71a3524af72b61ccd7affce7
SHA512

c0df553f05a93b89f2d22b387911f11379c422e8efd8800709a9044574fc337223d6b5007d212c4e3c527fbe7075f0aa9d1a0e02d9939a75bfb2dd6fb1bf4d15
SSDEEP

768:26DW8cxflagfBG5omPIzVFtFnyZ+y+wt2vYOKvB8v:LyjBfBoPIz7t4ZV+wt2hKvuv

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe
4168	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\iifdbCVp.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ddcBTMdc.dll	56e4c467f5c0fd924bd6d59fa3ba0895.exe
File created	C:\Windows\SysWOW64\ddcBTMdc.dll	56e4c467f5c0fd924bd6d59fa3ba0895.exe
File created	C:\Windows\SysWOW64\iifdbCVp.dll	56e4c467f5c0fd924bd6d59fa3ba0895.exe
File opened for modification	C:\Windows\SysWOW64\iifdbCVp.dll	56e4c467f5c0fd924bd6d59fa3ba0895.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5AEE532C-7C2F-4E5C-A044-096846CB9490}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5AEE532C-7C2F-4E5C-A044-096846CB9490}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5AEE532C-7C2F-4E5C-A044-096846CB9490}\InprocServer32\ = "C:\\Windows\\SysWow64\\iifdbCVp.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5AEE532C-7C2F-4E5C-A044-096846CB9490}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe
2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe
4168	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 628	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe	3
PID 2532 wrote to memory of 4168	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe	101
PID 2532 wrote to memory of 4168	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe	101
PID 2532 wrote to memory of 4168	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe	101
PID 2532 wrote to memory of 4040	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe	102
PID 2532 wrote to memory of 4040	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe	102
PID 2532 wrote to memory of 4040	2532	56e4c467f5c0fd924bd6d59fa3ba0895.exe	102

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:628

C:\Users\Admin\AppData\Local\Temp\56e4c467f5c0fd924bd6d59fa3ba0895.exe
"C:\Users\Admin\AppData\Local\Temp\56e4c467f5c0fd924bd6d59fa3ba0895.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\iifdbCVp.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:4168
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\removalfile.bat "C:\Users\Admin\AppData\Local\Temp\56e4c467f5c0fd924bd6d59fa3ba0895.exe"
  2⤵
  PID:4040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\removalfile.bat

Filesize
43B

MD5
9a7ef09167a6f4433681b94351509043

SHA1
259b1375ed8e84943ca1d42646bb416325c89e12

SHA256
d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

SHA512
96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

Download Submit
C:\Windows\SysWOW64\ddcBTMdc.dll

Filesize
37KB

MD5
934e152ce53a38343e677c258993f485

SHA1
8f4ec32a948357d7ba8098ed9239f0207eac18ef

SHA256
8ec2cb4266d9b40589b59ebf2ff2e6233b253b809cc9aca1b4e02eb97a948f34

SHA512
61114285057e494f18db08701dd16dd3650f76be8c4f36b7cceec45a62fd47c4ca77cd6829eaa015312bb625f9291168ccb6c1b342a07578057df29be331a326

Download Submit
memory/2532-14-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/2532-7-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/2532-8-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/2532-13-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2532-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2532-17-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/2532-18-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/2532-1-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4168-24-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4168-25-0x0000000000F70000-0x0000000000F76000-memory.dmp

Filesize
24KB

Download
memory/4168-27-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download