7a7d759f5ef31d2096cd341e778cc975da6c76f1989dba2c9623ed651189b7c4

Analysis

max time kernel
126s
max time network
207s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2023 14:20

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General

Target

ChangeIt211/InstMsiA.exe
Size

1.6MB
MD5

cd91a545478263b4e6902e7d5932077d
SHA1

7fbedfe34eec29469ef14d7cc2ef3554f69798e5
SHA256

5ab8b82f578f09dbccf797754155e531b5996b532c1f19c531596ec07cc4b46d
SHA512

2ad130fcb66d23c0059f4eee33de43b2b2cb2677b8ea3c62690b44398a66405518a21fb37f05c85a4f8de5c79ca0c70e48747b289e17b88ebc77f853a5d47e6a
SSDEEP

49152:WH/TMKsbxmkfhZ8t5/s2vNObkdmuqKx3+:K/TMKsbxm+Ut5/3v+z

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3408	msiinst.exe

Adds Run key to start application 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\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	InstMsiA.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 3408	1520	InstMsiA.exe	87
PID 1520 wrote to memory of 3408	1520	InstMsiA.exe	87
PID 1520 wrote to memory of 3408	1520	InstMsiA.exe	87

C:\Users\Admin\AppData\Local\Temp\ChangeIt211\InstMsiA.exe
"C:\Users\Admin\AppData\Local\Temp\ChangeIt211\InstMsiA.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msiinst.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msiinst.exe /i instmsi.msi MSIEXECREG=1 /m /qb+!
  2⤵
  - Executes dropped EXE
  PID:3408

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\IXP000.TMP\msiinst.exe

Filesize
36KB

MD5
47eb6c6eaaae1544a50339a51a8ae481

SHA1
7df0beb8f719174419d9421497f203d63290f8d6

SHA256
3c97927b8bf0bb1a54271d6f117e0e12b673122284b2e382d55237a3487960b2

SHA512
a675f471a8404830b114cec2f0605ef18dca203b74e2d5a26f3f3a9b0055ff3daad45e04ac11fc794e6df90b9ce700cf39f85e2f2193af1d13bde776d3157fcc

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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msiinst.exe

Filesize
36KB

MD5
47eb6c6eaaae1544a50339a51a8ae481

SHA1
7df0beb8f719174419d9421497f203d63290f8d6

SHA256
3c97927b8bf0bb1a54271d6f117e0e12b673122284b2e382d55237a3487960b2

SHA512
a675f471a8404830b114cec2f0605ef18dca203b74e2d5a26f3f3a9b0055ff3daad45e04ac11fc794e6df90b9ce700cf39f85e2f2193af1d13bde776d3157fcc

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads