asyncrat | 40fb046cd3a136a4c55338295b05b887ea1de0ed7b7ae58fc0d3dc83ae54cba1

Analysis

max time kernel
97s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2025 14:10

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General

Target

Builder WorldWind Pro/stub.exe
Size

171KB
MD5

fd12ac8c2bce0eccd26b3f48a8ad4956
SHA1

7b7c6548ea4e4e897968785126d4033a876c6d3e
SHA256

c618d6362d0bfe7daf26d6c98271cc38c291e812548c13869c0d1bfb905531d0
SHA512

cff76beea29e21c0c96bf5f1dc4bf419d1d5246c9cc111ff572909867588694ae80de22b663e2af8b33da52540d6053e106586738db05ec91fafc0055ec41631
SSDEEP

3072:9ySRwk/N2wtuh77yHcokLZl9CPJ+dZ8BAgTepbDywAWY+WpY:OkV9tuh77ypkLTzyqnpbDq

Score

10^/10

asyncrat stormkitty default discovery rat stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral16/memory/3348-1-0x0000000000C00000-0x0000000000C32000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Downloads MZ/PE file 1 IoCs

flow	pid	Process
43	3972	Process not Found

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stub.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3192	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3348	stub.exe

C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro\stub.exe
"C:\Users\Admin\AppData\Local\Temp\Builder WorldWind Pro\stub.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3348

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI0IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTA1NjYxMTgzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3348-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/3348-1-0x0000000000C00000-0x0000000000C32000-memory.dmp

Filesize
200KB

Download
memory/3348-2-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/3348-4-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download