e24e2eb2ce063e44fe2d66a57245abfb958624b025859323c832ae1514079dac

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 03:46

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General

Target

03bd4c46c98ef83b158a805eb30413c5.dll
Size

236KB
MD5

03bd4c46c98ef83b158a805eb30413c5
SHA1

fb8b9922c32d31e53ffddb328dbc37f3d8e4f2a3
SHA256

e24e2eb2ce063e44fe2d66a57245abfb958624b025859323c832ae1514079dac
SHA512

5f956b68ad95e619329b7c1979e3ab1f0df26b4e58821daf891d22152908675110f9286ed234826858b6a2e527d45072a6c646165cd78215b22f42638f19d33f
SSDEEP

1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvM/:Go256vS0RJAL+lHPKi40+66iwkD0Y

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\vdpdninoy = "{f35b745a-7bd3-c028-8ce4-7bd3fcd2e0fb}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4652	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f35b745a-7bd3-c028-8ce4-7bd3fcd2e0fb}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f35b745a-7bd3-c028-8ce4-7bd3fcd2e0fb}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f35b745a-7bd3-c028-8ce4-7bd3fcd2e0fb}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f35b745a-7bd3-c028-8ce4-7bd3fcd2e0fb}\InprocServer32\ = "C:\\Windows\\SysWow64\\qykyidijt.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f35b745a-7bd3-c028-8ce4-7bd3fcd2e0fb}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4652	rundll32.exe
4652	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4652	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4652	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 4652	5088	rundll32.exe	14
PID 5088 wrote to memory of 4652	5088	rundll32.exe	14
PID 5088 wrote to memory of 4652	5088	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03bd4c46c98ef83b158a805eb30413c5.dll,#1
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4652

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03bd4c46c98ef83b158a805eb30413c5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5088

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:\Windows\SysWOW64\iqcqavabl.dll

Filesize
99KB

MD5
1140427d1abba078fae05968cc8ae972

SHA1
b44b881aa15f3c7c4a74fc9d4023950176e54bc7

SHA256
a2e949c17e061ac26d4fbb64dc40c3d2686fa7bd519508cb558d96b800215650

SHA512
cfac86b884783859c464f074424faf57507db3ee914699fdc283f8b43b6784a69374472eaa6471a1e4c0844e8b2e5af4112fb4bfe91495975bfd5ab40e00b36e

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

Filesize
382KB

MD5
03ee15c347c5922d87568d3ecc92140d

SHA1
f90b79f3f4f1a1211a41e00571265e35da283714

SHA256
ea6a7357fd1cbe0bbed38622db0e30e8dfa99c91004566498a9225c967480977

SHA512
cd5da7d84c760ee9c08da347af3ce9426fe7acb5beb10405658c59b538aad7e700a48c15b1b85e45a767dd58f25ecff87395d05e2bbd0b955d863ef9f6d77a96

Download Submit
memory/4652-10-0x0000000075630000-0x00000000756AA000-memory.dmp

Filesize
488KB

Download
memory/4652-7-0x0000000075630000-0x00000000756AA000-memory.dmp

Filesize
488KB

Download
memory/4652-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4652-12-0x0000000075630000-0x00000000756AA000-memory.dmp

Filesize
488KB

Download
memory/4652-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download