6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/04/2024, 21:07

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General

Target

6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe
Size

198KB
MD5

2fe5f92cd346808e1f27b69def18bca6
SHA1

e86f7ebfbb2cf79f8373bd64b8e1efbe269456bc
SHA256

6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf
SHA512

4912e3e296dba239bcf54088f9d79875d6c9216f5e3f689fe2e0904459d5cd8dafccb544b1b499fb700b204626aaaf7f79d7c653d15f6089ef757af4e7f0c33c
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOW:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXX7

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	6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe

Executes dropped EXE 1 IoCs

pid	Process
628	riyhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\riyhost.exe	6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe
File opened for modification	C:\Windows\Debug\riyhost.exe	6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.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	riyhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	riyhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4500	6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 1816	4500	6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe	96
PID 4500 wrote to memory of 1816	4500	6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe	96
PID 4500 wrote to memory of 1816	4500	6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe	96

C:\Users\Admin\AppData\Local\Temp\6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe
"C:\Users\Admin\AppData\Local\Temp\6af2acfc2952e9bc4b40eb1f3bf2bf3dc6425f3971a2720cbd6bdc4b13c25bbf.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\6AF2AC~1.EXE > nul
  2⤵
  PID:1816

C:\Windows\Debug\riyhost.exe
C:\Windows\Debug\riyhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:628

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=3776 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:4368

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\riyhost.exe

Filesize
198KB

MD5
d3142e5f4ad05bea0c2de0ec0c7dc4e0

SHA1
a99a790064b23a66fb8b50d22d97ce8295cb0609

SHA256
9b77fb79e721320692f8f8c5ceb5bb3dd2c06c0a60a889dcb794db326e5e08b6

SHA512
2f49d8971321d9d3082fa034fe26a5965498a00d1ae2fe0d01ece6ca329ea9ff511420d1f7490a4c375393051536b1dc2eeb45457c7a59d6ce3dc3f67654f1a8

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads