ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b

Analysis

max time kernel
152s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 12:24

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General

Target

ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b.dll
Size

25KB
MD5

76cd1c9799f873efe437f6939af3b4c9
SHA1

01d8f7f3c6814c1fa504dc66a5f2e641f00d838a
SHA256

ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b
SHA512

4235bb28c2e9f242411edaadbfb2874524f52e00b8e8da17302cb95a8955ff4881c0ed764c8045a3de6e9f279f468f4711d73d8803b42332472dd5b2d753e2f6
SSDEEP

384:mdZibPLqEH883VHVkTlHOl4/cHK3b4y9T00TTWSyA/YNDtrHEy3k:mT8qgoSpHK560TTWSqNDtrc

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
4304	rundll32.exe
4304	rundll32.exe
4528	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\pmnkJdDv.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\pmnkJdDv.dll	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6BB0E4E-AC9D-496A-8984-74AE48321127}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6BB0E4E-AC9D-496A-8984-74AE48321127}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6BB0E4E-AC9D-496A-8984-74AE48321127}\InprocServer32\ = "C:\\Windows\\SysWow64\\pmnkJdDv.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6BB0E4E-AC9D-496A-8984-74AE48321127}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4304	rundll32.exe
4304	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe
4528	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4304	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4304	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4304	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 4304	2760	rundll32.exe	81
PID 2760 wrote to memory of 4304	2760	rundll32.exe	81
PID 2760 wrote to memory of 4304	2760	rundll32.exe	81
PID 4304 wrote to memory of 604	4304	rundll32.exe	5
PID 4304 wrote to memory of 4528	4304	rundll32.exe	86
PID 4304 wrote to memory of 4528	4304	rundll32.exe	86
PID 4304 wrote to memory of 4528	4304	rundll32.exe	86

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:604

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4304
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\pmnkJdDv.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:4528

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\pmnkJdDv.dll

Filesize
25KB

MD5
76cd1c9799f873efe437f6939af3b4c9

SHA1
01d8f7f3c6814c1fa504dc66a5f2e641f00d838a

SHA256
ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b

SHA512
4235bb28c2e9f242411edaadbfb2874524f52e00b8e8da17302cb95a8955ff4881c0ed764c8045a3de6e9f279f468f4711d73d8803b42332472dd5b2d753e2f6

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

Filesize
25KB

MD5
76cd1c9799f873efe437f6939af3b4c9

SHA1
01d8f7f3c6814c1fa504dc66a5f2e641f00d838a

SHA256
ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b

SHA512
4235bb28c2e9f242411edaadbfb2874524f52e00b8e8da17302cb95a8955ff4881c0ed764c8045a3de6e9f279f468f4711d73d8803b42332472dd5b2d753e2f6

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

Filesize
25KB

MD5
76cd1c9799f873efe437f6939af3b4c9

SHA1
01d8f7f3c6814c1fa504dc66a5f2e641f00d838a

SHA256
ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b

SHA512
4235bb28c2e9f242411edaadbfb2874524f52e00b8e8da17302cb95a8955ff4881c0ed764c8045a3de6e9f279f468f4711d73d8803b42332472dd5b2d753e2f6

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

Filesize
25KB

MD5
76cd1c9799f873efe437f6939af3b4c9

SHA1
01d8f7f3c6814c1fa504dc66a5f2e641f00d838a

SHA256
ed19f7d6ea9c0bc61a0c6cf6b1fac5bc7ec9bd07ca927eaa11692e1fe64d264b

SHA512
4235bb28c2e9f242411edaadbfb2874524f52e00b8e8da17302cb95a8955ff4881c0ed764c8045a3de6e9f279f468f4711d73d8803b42332472dd5b2d753e2f6

Download Submit
memory/4304-133-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/4304-134-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/4304-137-0x0000000001330000-0x0000000001343000-memory.dmp

Filesize
76KB

Download
memory/4528-141-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download