a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302

Analysis

max time kernel
143s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2024, 13:59

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General

Target

a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe
Size

197KB
MD5

7a04af67dadae9c59b56ee819bbef32d
SHA1

d032ee01af2669b20105d78c62403e1b1d8984d3
SHA256

a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302
SHA512

48f95d02900b2b5e56c38540e7f25f838703d3804e867eb3957cc2fce48b57b109d978271efa35a817017ec3b59f4c66b5843532db7448acbd1bad292a1c8f6f
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOB:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXc

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe

Executes dropped EXE 1 IoCs

pid	Process
1444	zewhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zewhost.exe	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe
File opened for modification	C:\Windows\Debug\zewhost.exe	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	zewhost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	zewhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1532	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 4040	1532	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe	96
PID 1532 wrote to memory of 4040	1532	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe	96
PID 1532 wrote to memory of 4040	1532	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe	96

C:\Users\Admin\AppData\Local\Temp\a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe
"C:\Users\Admin\AppData\Local\Temp\a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A3169D~1.EXE > nul
  2⤵
  PID:4040

C:\Windows\Debug\zewhost.exe
C:\Windows\Debug\zewhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1444

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4132 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8
1⤵
PID:3248

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\zewhost.exe

Filesize
197KB

MD5
075d904becd06f330f9f014a6f03ae40

SHA1
5f92dd4fa77346b54f11d2c522456347a541aba7

SHA256
c57965f400e2812e3536b0a47bd013eda7811b8b25b03001541c5908569adad0

SHA512
f5028cfe3e9586003be30a7ae794f4141297145c0e35eb1e34f2683634989179ee3dd79332eec6f7f26bc0f54326db49a6108498caca8986177d6d400d982242

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads