a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b

Analysis

max time kernel
170s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 09:36

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General

Target

a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b.dll
Size

25KB
MD5

04de4b2378ef88d088dace74b8426775
SHA1

325a24ad95afcd5c4e5e584850f94b178eab1729
SHA256

a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b
SHA512

165c0141734ab1896c31befe4ec2c31eff26ac37be891967ff38600f4d044e4dae8bea44377d8127fea22ea69b0850cbf3f84df32615c71c353b88bedcdfb89f
SSDEEP

768:Q54IFbjanUh1zUT6sTx1xrRQKES5fWNPh:QeIRanUhC6sl1xFQ8Wf

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
2164	rundll32.exe
2164	rundll32.exe
4872	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\\rqRHayxU.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}\InprocServer32\ = "C:\\Windows\\SysWow64\\rqRHayxU.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2164	rundll32.exe
2164	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe
4872	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2164	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2164	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2164	2520	rundll32.exe	80
PID 2520 wrote to memory of 2164	2520	rundll32.exe	80
PID 2520 wrote to memory of 2164	2520	rundll32.exe	80
PID 2164 wrote to memory of 608	2164	rundll32.exe	3
PID 2164 wrote to memory of 4872	2164	rundll32.exe	82
PID 2164 wrote to memory of 4872	2164	rundll32.exe	82
PID 2164 wrote to memory of 4872	2164	rundll32.exe	82

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b.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:2164
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\rqRHayxU.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:4872

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\rqRHayxU.dll

Filesize
25KB

MD5
04de4b2378ef88d088dace74b8426775

SHA1
325a24ad95afcd5c4e5e584850f94b178eab1729

SHA256
a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b

SHA512
165c0141734ab1896c31befe4ec2c31eff26ac37be891967ff38600f4d044e4dae8bea44377d8127fea22ea69b0850cbf3f84df32615c71c353b88bedcdfb89f

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

Filesize
25KB

MD5
04de4b2378ef88d088dace74b8426775

SHA1
325a24ad95afcd5c4e5e584850f94b178eab1729

SHA256
a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b

SHA512
165c0141734ab1896c31befe4ec2c31eff26ac37be891967ff38600f4d044e4dae8bea44377d8127fea22ea69b0850cbf3f84df32615c71c353b88bedcdfb89f

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

Filesize
25KB

MD5
04de4b2378ef88d088dace74b8426775

SHA1
325a24ad95afcd5c4e5e584850f94b178eab1729

SHA256
a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b

SHA512
165c0141734ab1896c31befe4ec2c31eff26ac37be891967ff38600f4d044e4dae8bea44377d8127fea22ea69b0850cbf3f84df32615c71c353b88bedcdfb89f

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

Filesize
25KB

MD5
04de4b2378ef88d088dace74b8426775

SHA1
325a24ad95afcd5c4e5e584850f94b178eab1729

SHA256
a9ba6e5ba418faffee1a788e5fc2090fb1dc1d7037b63188448e5c09a6e9d90b

SHA512
165c0141734ab1896c31befe4ec2c31eff26ac37be891967ff38600f4d044e4dae8bea44377d8127fea22ea69b0850cbf3f84df32615c71c353b88bedcdfb89f

Download Submit
memory/2164-133-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2164-136-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2164-137-0x0000000000A90000-0x0000000000AA2000-memory.dmp

Filesize
72KB

Download
memory/4872-141-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download