e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2023, 07:11

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General

Target

e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe
Size

198KB
MD5

0245ad61ebbfc49b753262c6ff1ae678
SHA1

b6fdcd5b918428211674e934c942e8e076766e61
SHA256

e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e
SHA512

e1c6721f77bde3c28fb382c2c21a652e8ed6c481f2ad3edd218e4312c862fbc73fa65fad881b6e6c7e3330d65ec2b356eda5d40ad9bc000b311c1506c5855be0
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOm:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXX

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation	e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe

Executes dropped EXE 1 IoCs

pid	Process
3748	mewhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\mewhost.exe	e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe
File opened for modification	C:\Windows\Debug\mewhost.exe	e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mewhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	mewhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	752	e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 3956	752	e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe	89
PID 752 wrote to memory of 3956	752	e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe	89
PID 752 wrote to memory of 3956	752	e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe	89

C:\Users\Admin\AppData\Local\Temp\e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe
"C:\Users\Admin\AppData\Local\Temp\e71623a0ec9be5fd2d040ebc28ec7983e9c669a2acee7d7b3f64775d725d011e.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E71623~1.EXE > nul
  2⤵
  PID:3956

C:\Windows\Debug\mewhost.exe
C:\Windows\Debug\mewhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:3748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\mewhost.exe

Filesize
198KB

MD5
be40d1cd25124b63cf6ae7f03bda8bc0

SHA1
47139beb8b23e1dbb607eeb14b7f309929370e49

SHA256
97a6699eb50f6e01ea87c0a73b2a7b05879612bdcbd3d9acae401a85506fc6f6

SHA512
62050aef15e0234bdf82703c590a648e16c5bbe32e5058c5b5f4997d86314e3751518faf74d4310a9c0128e1b46236c8de090ad237cc069ede4808ac2e87cceb

Download Submit
C:\Windows\debug\mewhost.exe

Filesize
198KB

MD5
be40d1cd25124b63cf6ae7f03bda8bc0

SHA1
47139beb8b23e1dbb607eeb14b7f309929370e49

SHA256
97a6699eb50f6e01ea87c0a73b2a7b05879612bdcbd3d9acae401a85506fc6f6

SHA512
62050aef15e0234bdf82703c590a648e16c5bbe32e5058c5b5f4997d86314e3751518faf74d4310a9c0128e1b46236c8de090ad237cc069ede4808ac2e87cceb

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads