1de8f01e49d7bbbd76818ae5444ecc46dc50e3683540548ecaaf0a388b4c7b62

Analysis

max time kernel
73s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2022 19:54

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General

Target

1de8f01e49d7bbbd76818ae5444ecc46dc50e3683540548ecaaf0a388b4c7b62.dll
Size

236KB
MD5

0bf32ec102f955c51d09f0e14700452c
SHA1

c354ff9bbd259ae5cefb766a4489d781e249c804
SHA256

1de8f01e49d7bbbd76818ae5444ecc46dc50e3683540548ecaaf0a388b4c7b62
SHA512

65a15e2a8cdecd90cf2251ca677d79416c5826e4c3952b8c0b8e7b7c3ebb90d3adc97331811d2e2b3ba5e9a14420d417d54e37c7dee54954c529a89e00b228bc
SSDEEP

1536:1dKaTHN2ymZ0ofa5uQm4V7HG8ldINh+RhFtFftCgpcGO5lPf/XG8GmGwktbh:1Y4tIQG8XAmbFfaGc1fawk1h

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

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\rnx = "{fbb244ee-733a-c88f-844b-733acc669db6}"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2204	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbb244ee-733a-c88f-844b-733acc669db6}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbb244ee-733a-c88f-844b-733acc669db6}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbb244ee-733a-c88f-844b-733acc669db6}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbb244ee-733a-c88f-844b-733acc669db6}\InprocServer32\ = "C:\\Windows\\SysWow64\\mis.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbb244ee-733a-c88f-844b-733acc669db6}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2204	rundll32.exe
2204	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2204	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3108 wrote to memory of 2204	3108	rundll32.exe	81
PID 3108 wrote to memory of 2204	3108	rundll32.exe	81
PID 3108 wrote to memory of 2204	3108	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1de8f01e49d7bbbd76818ae5444ecc46dc50e3683540548ecaaf0a388b4c7b62.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3108
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1de8f01e49d7bbbd76818ae5444ecc46dc50e3683540548ecaaf0a388b4c7b62.dll,#1
  2⤵
  - 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:2204

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

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Downloads

C:\Windows\SysWOW64\eak.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/2204-134-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2204-135-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download