efb19e84ab40bc3a97000ef6d43fe7676bd7b4302ce096499dbd83cb70bdb0bf

General

Target

e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
Size

443KB
MD5

e53b4b3d1f293bb802dfde0dc1edf2a5
SHA1

cd11e97c504e314e6774a8effdcc1ac9b37c0d47
SHA256

efb19e84ab40bc3a97000ef6d43fe7676bd7b4302ce096499dbd83cb70bdb0bf
SHA512

fafa0c5df434aa7377c062ed2b1489c05e001f45ab3eba5bcfd490065bb93a5c64ab40d55454ef8fdc5db889c1f7dc4b231174339f15ea0804113b976c6844bb
SSDEEP

6144:9rTfUHeeSKOS9ccFKk3Y9t9YfxzK0hAhvdDfW0EqRE3aEQIS8sgam:9n8yN0Mr8xKzvFWOC3aEX9N

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2364	Isass.exe

Loads dropped DLL 2 IoCs

pid	Process
2036	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
2036	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.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-1-5-21-481678230-3773327859-3495911762-1000\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 2 IoCs

pid	Process
2036	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
2364	Isass.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2364	2036	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe	28
PID 2036 wrote to memory of 2364	2036	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe	28
PID 2036 wrote to memory of 2364	2036	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe	28
PID 2036 wrote to memory of 2364	2036	e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe	28

C:\Users\Admin\AppData\Local\Temp\e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\e53b4b3d1f293bb802dfde0dc1edf2a5_NEIKI.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

\Users\Public\Microsoft Build\Isass.exe

Filesize
443KB

MD5
e53b4b3d1f293bb802dfde0dc1edf2a5

SHA1
cd11e97c504e314e6774a8effdcc1ac9b37c0d47

SHA256
efb19e84ab40bc3a97000ef6d43fe7676bd7b4302ce096499dbd83cb70bdb0bf

SHA512
fafa0c5df434aa7377c062ed2b1489c05e001f45ab3eba5bcfd490065bb93a5c64ab40d55454ef8fdc5db889c1f7dc4b231174339f15ea0804113b976c6844bb

Download Submit
memory/2036-7-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2036-9-0x0000000004490000-0x0000000005738000-memory.dmp

Filesize
18.7MB

Download
memory/2036-11-0x0000000004490000-0x0000000005738000-memory.dmp

Filesize
18.7MB

Download
memory/2036-15-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-14-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2364-13-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-16-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-17-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-20-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-21-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-28-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-29-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-37-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-38-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-44-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-45-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-52-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-53-0x0000000004470000-0x0000000005718000-memory.dmp

Filesize
18.7MB

Download
memory/2364-54-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-62-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-63-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2364-75-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads