b7073aff4f6a22d74365f5944899b7944e98f4a717dfcb96c8279e9e080edc24

General

Target

NEAS.09b2b60facec61e831d7514f59569034_JC.exe
Size

211KB
MD5

09b2b60facec61e831d7514f59569034
SHA1

423d52524e985ff56767cef570937d8f7264104f
SHA256

b7073aff4f6a22d74365f5944899b7944e98f4a717dfcb96c8279e9e080edc24
SHA512

f20f21ed865487b4ef783c1a23753deb0a711bbdadf666cce6d4a6ccbccf26d6891f9932d461e596b6e2aa1be6cbef70a2f2c4823a4569fd706041d9c4b604b3
SSDEEP

3072:EPUHpiKT2t2UHIu05W7SAFJJOUD9cckiKop97f3r8n9t9Ygntt:9rTfUHeeSKOS9ccFKk3Y9t9Yk

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2548	Isass.exe

Loads dropped DLL 2 IoCs

pid	Process
1980	NEAS.09b2b60facec61e831d7514f59569034_JC.exe
1980	NEAS.09b2b60facec61e831d7514f59569034_JC.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-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	NEAS.09b2b60facec61e831d7514f59569034_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	NEAS.09b2b60facec61e831d7514f59569034_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1980	NEAS.09b2b60facec61e831d7514f59569034_JC.exe
2548	Isass.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2548	1980	NEAS.09b2b60facec61e831d7514f59569034_JC.exe	28
PID 1980 wrote to memory of 2548	1980	NEAS.09b2b60facec61e831d7514f59569034_JC.exe	28
PID 1980 wrote to memory of 2548	1980	NEAS.09b2b60facec61e831d7514f59569034_JC.exe	28
PID 1980 wrote to memory of 2548	1980	NEAS.09b2b60facec61e831d7514f59569034_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.09b2b60facec61e831d7514f59569034_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.09b2b60facec61e831d7514f59569034_JC.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2548

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

Replay Monitor

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Downloads

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

Filesize
211KB

MD5
09b2b60facec61e831d7514f59569034

SHA1
423d52524e985ff56767cef570937d8f7264104f

SHA256
b7073aff4f6a22d74365f5944899b7944e98f4a717dfcb96c8279e9e080edc24

SHA512
f20f21ed865487b4ef783c1a23753deb0a711bbdadf666cce6d4a6ccbccf26d6891f9932d461e596b6e2aa1be6cbef70a2f2c4823a4569fd706041d9c4b604b3

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

Filesize
211KB

MD5
09b2b60facec61e831d7514f59569034

SHA1
423d52524e985ff56767cef570937d8f7264104f

SHA256
b7073aff4f6a22d74365f5944899b7944e98f4a717dfcb96c8279e9e080edc24

SHA512
f20f21ed865487b4ef783c1a23753deb0a711bbdadf666cce6d4a6ccbccf26d6891f9932d461e596b6e2aa1be6cbef70a2f2c4823a4569fd706041d9c4b604b3

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

Filesize
211KB

MD5
09b2b60facec61e831d7514f59569034

SHA1
423d52524e985ff56767cef570937d8f7264104f

SHA256
b7073aff4f6a22d74365f5944899b7944e98f4a717dfcb96c8279e9e080edc24

SHA512
f20f21ed865487b4ef783c1a23753deb0a711bbdadf666cce6d4a6ccbccf26d6891f9932d461e596b6e2aa1be6cbef70a2f2c4823a4569fd706041d9c4b604b3

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

Filesize
211KB

MD5
09b2b60facec61e831d7514f59569034

SHA1
423d52524e985ff56767cef570937d8f7264104f

SHA256
b7073aff4f6a22d74365f5944899b7944e98f4a717dfcb96c8279e9e080edc24

SHA512
f20f21ed865487b4ef783c1a23753deb0a711bbdadf666cce6d4a6ccbccf26d6891f9932d461e596b6e2aa1be6cbef70a2f2c4823a4569fd706041d9c4b604b3

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

Filesize
211KB

MD5
09b2b60facec61e831d7514f59569034

SHA1
423d52524e985ff56767cef570937d8f7264104f

SHA256
b7073aff4f6a22d74365f5944899b7944e98f4a717dfcb96c8279e9e080edc24

SHA512
f20f21ed865487b4ef783c1a23753deb0a711bbdadf666cce6d4a6ccbccf26d6891f9932d461e596b6e2aa1be6cbef70a2f2c4823a4569fd706041d9c4b604b3

Download Submit
memory/1980-14-0x0000000004180000-0x0000000005428000-memory.dmp

Filesize
18.7MB

Download
memory/1980-1-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1980-11-0x0000000004180000-0x0000000005428000-memory.dmp

Filesize
18.7MB

Download
memory/1980-0-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/1980-15-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-18-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-38-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-16-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-17-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-12-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-21-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-23-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-29-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-32-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-13-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2548-44-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-45-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-50-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-51-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-52-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-53-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-60-0x0000000004220000-0x00000000054C8000-memory.dmp

Filesize
18.7MB

Download
memory/2548-73-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads