29c723ebd9c1af2bb82db17fe0bcb587fb8311f651867e6b217be17d378b51f4

Analysis

max time kernel
144s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 08:38

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General

Target

1396e9d56493cd08319ecf9da9ff6a77.exe
Size

14KB
MD5

1396e9d56493cd08319ecf9da9ff6a77
SHA1

45446b199eb9ccec84894466e22a2943f0d6edf6
SHA256

29c723ebd9c1af2bb82db17fe0bcb587fb8311f651867e6b217be17d378b51f4
SHA512

d474de3ed4fa5d9d69cb923553a1a5f4a931f78f8d2723f7c4dc512401979cddaeb3902334db1653bffbe612c4d1595f673c7a37f6c859f5236462142838d290
SSDEEP

384:SvT/v4DyWAF5HqV+l+LOXKuzJ+MUZiCVEk5:Sv7Q+WAL/l+LIKInHg

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\imgutilhx2.dll = "{DA56B183-A731-402b-9235-2CB8803E212D}"	1396e9d56493cd08319ecf9da9ff6a77.exe

Loads dropped DLL 1 IoCs

pid	Process
724	1396e9d56493cd08319ecf9da9ff6a77.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\imgutilhx2.nls	1396e9d56493cd08319ecf9da9ff6a77.exe
File created	C:\Windows\SysWOW64\imgutilhx2.tmp	1396e9d56493cd08319ecf9da9ff6a77.exe
File opened for modification	C:\Windows\SysWOW64\imgutilhx2.tmp	1396e9d56493cd08319ecf9da9ff6a77.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA56B183-A731-402b-9235-2CB8803E212D}	1396e9d56493cd08319ecf9da9ff6a77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA56B183-A731-402b-9235-2CB8803E212D}\InProcServer32	1396e9d56493cd08319ecf9da9ff6a77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA56B183-A731-402b-9235-2CB8803E212D}\InProcServer32\ = "C:\\Windows\\SysWow64\\imgutilhx2.dll"	1396e9d56493cd08319ecf9da9ff6a77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA56B183-A731-402b-9235-2CB8803E212D}\InProcServer32\ThreadingModel = "Apartment"	1396e9d56493cd08319ecf9da9ff6a77.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
724	1396e9d56493cd08319ecf9da9ff6a77.exe
724	1396e9d56493cd08319ecf9da9ff6a77.exe
724	1396e9d56493cd08319ecf9da9ff6a77.exe
724	1396e9d56493cd08319ecf9da9ff6a77.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
724	1396e9d56493cd08319ecf9da9ff6a77.exe
724	1396e9d56493cd08319ecf9da9ff6a77.exe
724	1396e9d56493cd08319ecf9da9ff6a77.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 724 wrote to memory of 400	724	1396e9d56493cd08319ecf9da9ff6a77.exe	100
PID 724 wrote to memory of 400	724	1396e9d56493cd08319ecf9da9ff6a77.exe	100
PID 724 wrote to memory of 400	724	1396e9d56493cd08319ecf9da9ff6a77.exe	100

C:\Users\Admin\AppData\Local\Temp\1396e9d56493cd08319ecf9da9ff6a77.exe
"C:\Users\Admin\AppData\Local\Temp\1396e9d56493cd08319ecf9da9ff6a77.exe"
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 SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:724
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\B8E0.tmp.bat
  2⤵
  PID:400

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\B8E0.tmp.bat

Filesize
179B

MD5
be972cf308080454d050799f06c2f763

SHA1
46c0901847e250afb8ffac025894c5c2d7285720

SHA256
40c6ed7cc0c8bd464c1dd1482eb9b582eb80532683a7dd2690f6d2d4c9661b5d

SHA512
c0effb71489d78761a0f90a1518ef9fdcbab0e4ee4f62e1f7d8806e2a9ee33dc72fc78ca1e04585e248b099c447763b77ea029c931a58b0de012226e5aed2213

Download Submit
C:\Windows\SysWOW64\imgutilhx2.dll

Filesize
913KB

MD5
fbf785e3bd10b487d69bf6c24e6e6bbf

SHA1
c3e62e23dc5c8b9a46536612f177a5fa720064fa

SHA256
c241caae759771ef9535468a52358178d394e6062673478ab3e314054d8d1d79

SHA512
03fa6a44b3cd90eab17ca4b67a4ba5406bfa483d15ea70435de48050e75a26d3108b07a0164f11efc69cfa90911130aa7b47452885abc7695115334d5ee0eea2

Download Submit
memory/724-9-0x0000000020000000-0x0000000020008000-memory.dmp

Filesize
32KB

Download
memory/724-13-0x0000000020000000-0x0000000020008000-memory.dmp

Filesize
32KB

Download