eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330

Analysis

max time kernel
133s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 18:27

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General

Target

eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330.exe
Size

631KB
MD5

0e57c551b83cc1c5ae63721fd8eaf4a1
SHA1

e93fe1bbc31984fcb145a4e541630d51dfeaec20
SHA256

eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330
SHA512

7eb583c8486fe204033e6f926ce9652e2b45b9d2715bfba55a5d06afdb845b8ea888cce8109930176d11d103a5985f33ae586f4030de92d5209b6160481f62f8
SSDEEP

12288:z61nWxB4w8VwYHKenvmNEn1UJRNuIHw4F3Z4mxx+fFpCDRGNyHIxn:2MU5HKeONE1UJq8QmXCpCDcksn

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4956	System.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\System.exe	eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330.exe
File opened for modification	C:\Windows\System.exe	eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	System.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	System.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	System.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	System.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	System.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4364	eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330.exe
Token: SeDebugPrivilege	4956	System.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4956	System.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 4996	4956	System.exe	79
PID 4956 wrote to memory of 4996	4956	System.exe	79

C:\Users\Admin\AppData\Local\Temp\eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330.exe
"C:\Users\Admin\AppData\Local\Temp\eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4364

C:\Windows\System.exe
C:\Windows\System.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
  2⤵
  PID:4996

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\System.exe

Filesize
631KB

MD5
0e57c551b83cc1c5ae63721fd8eaf4a1

SHA1
e93fe1bbc31984fcb145a4e541630d51dfeaec20

SHA256
eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330

SHA512
7eb583c8486fe204033e6f926ce9652e2b45b9d2715bfba55a5d06afdb845b8ea888cce8109930176d11d103a5985f33ae586f4030de92d5209b6160481f62f8

Download Submit
C:\Windows\System.exe

Filesize
631KB

MD5
0e57c551b83cc1c5ae63721fd8eaf4a1

SHA1
e93fe1bbc31984fcb145a4e541630d51dfeaec20

SHA256
eff4b0ef791434d123670c4729fc88c36786e6f353150d3fa35325832f967330

SHA512
7eb583c8486fe204033e6f926ce9652e2b45b9d2715bfba55a5d06afdb845b8ea888cce8109930176d11d103a5985f33ae586f4030de92d5209b6160481f62f8

Download Submit
memory/4364-132-0x0000000000400000-0x000000000051B000-memory.dmp

Filesize
1.1MB

Download
memory/4364-133-0x0000000002330000-0x0000000002384000-memory.dmp

Filesize
336KB

Download
memory/4364-134-0x00000000034C0000-0x00000000035C0000-memory.dmp

Filesize
1024KB

Download
memory/4364-140-0x0000000000400000-0x000000000051B000-memory.dmp

Filesize
1.1MB

Download
memory/4364-141-0x0000000002330000-0x0000000002384000-memory.dmp

Filesize
336KB

Download
memory/4956-137-0x0000000000400000-0x000000000051B000-memory.dmp

Filesize
1.1MB

Download
memory/4956-138-0x0000000000A10000-0x0000000000A64000-memory.dmp

Filesize
336KB

Download
memory/4956-139-0x0000000002030000-0x0000000002130000-memory.dmp

Filesize
1024KB

Download
memory/4956-142-0x0000000000400000-0x000000000051B000-memory.dmp

Filesize
1.1MB

Download
memory/4956-143-0x0000000002030000-0x0000000002130000-memory.dmp

Filesize
1024KB

Download