efb19e84ab40bc3a97000ef6d43fe7676bd7b4302ce096499dbd83cb70bdb0bf

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 12:40

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General

Target

e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
Size

443KB
MD5

e53b4b3d1f293bb802dfde0dc1edf2a5
SHA1

cd11e97c504e314e6774a8effdcc1ac9b37c0d47
SHA256

efb19e84ab40bc3a97000ef6d43fe7676bd7b4302ce096499dbd83cb70bdb0bf
SHA512

fafa0c5df434aa7377c062ed2b1489c05e001f45ab3eba5bcfd490065bb93a5c64ab40d55454ef8fdc5db889c1f7dc4b231174339f15ea0804113b976c6844bb
SSDEEP

6144:9rTfUHeeSKOS9ccFKk3Y9t9YfxzK0hAhvdDfW0EqRE3aEQIS8sgam:9n8yN0Mr8xKzvFWOC3aEX9N

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1224	Isass.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3960	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
3960	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
1224	Isass.exe
1224	Isass.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 1224	3960	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe	81
PID 3960 wrote to memory of 1224	3960	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe	81
PID 3960 wrote to memory of 1224	3960	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe	81

C:\Users\Admin\AppData\Local\Temp\e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:1224

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe

Filesize
943KB

MD5
6f7f4b300b82116d7e2a2496bd4c2f48

SHA1
eca6458ba7b2f93ac0ed0b32c8ba4210699a5019

SHA256
825543e2e19f088cc04169c7aff4966d4c632c8001dca392041ccaabf969c432

SHA512
89253d41645a9ec48605854ba5e65fbd67dc5a865b404b27c0c9e7fee0d8aab6047aea6bdafc4964784b693dbc46119425289abc906cc1be0f5d012e08c7e7e0

Download Submit
C:\Users\Public\Microsoft Build\Isass.exe

Filesize
443KB

MD5
e53b4b3d1f293bb802dfde0dc1edf2a5

SHA1
cd11e97c504e314e6774a8effdcc1ac9b37c0d47

SHA256
efb19e84ab40bc3a97000ef6d43fe7676bd7b4302ce096499dbd83cb70bdb0bf

SHA512
fafa0c5df434aa7377c062ed2b1489c05e001f45ab3eba5bcfd490065bb93a5c64ab40d55454ef8fdc5db889c1f7dc4b231174339f15ea0804113b976c6844bb

Download Submit
memory/1224-18-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-23-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-7-0x0000000001A70000-0x0000000001A71000-memory.dmp

Filesize
4KB

Download
memory/1224-9-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-12-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-13-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-6-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-17-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-63-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-54-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-27-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-33-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-34-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-41-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-42-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1224-50-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3960-8-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3960-4-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download