asyncrat | cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10/12/2024, 03:31 UTC

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
Size

1.7MB
MD5

40f8c17c136d4dc83b130c9467cf6dcc
SHA1

e9b6049aa7da0af9718f2f4ae91653d9bac403bb
SHA256

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b
SHA512

6760a0752957535ec45ce3307e31569ac263eb73157d6a424d6e30647651a4e93db7c0378028d9e0ce07e65a357d2bb81047064ccda2f6a13fa7402ee7794c2d
SSDEEP

49152:IkXhu5J6iLKcMu/FQHujIytryx1GLMfzhh9JHTJ6qyrBbL:I0i9/COjIhkMfzhhMf

Score

10^/10

asyncrat default discovery evasion rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

205.209.109.10:4449

205.209.109.10:7723

Mutex

clgbfqzkkypxjps

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

1
JrMOaJuxfZSKWpOLEGsB7P6ZlsENcx9t

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2172-1-0x0000000000820000-0x0000000000C82000-memory.dmp	family_asyncrat
behavioral1/memory/2172-2-0x0000000000820000-0x0000000000C82000-memory.dmp	family_asyncrat

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS 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\VideoBiosVersion	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2172	cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

C:\Users\Admin\AppData\Local\Temp\cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe
"C:\Users\Admin\AppData\Local\Temp\cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2172

Network

No results found

205.209.109.10:4449

tls

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

675 B
1.3kB
9
6
205.209.109.10:7723

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

152 B
3
205.209.109.10:7723

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

152 B
3
205.209.109.10:7723

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

152 B
3
205.209.109.10:4449

tls

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

609 B
1.2kB
7
5
205.209.109.10:7723

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

152 B
3
205.209.109.10:4449

tls

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

661 B
1.3kB
8
6
205.209.109.10:4449

tls

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

661 B
1.3kB
8
6
205.209.109.10:4449

tls

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

661 B
1.3kB
8
6
205.209.109.10:7723

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

152 B
3
205.209.109.10:4449

tls

cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b.exe

569 B
1.2kB
6
4

No results found

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\CabEEC4.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar1BCF.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2172-0-0x0000000000820000-0x0000000000C82000-memory.dmp

Filesize
4.4MB

Download
memory/2172-1-0x0000000000820000-0x0000000000C82000-memory.dmp

Filesize
4.4MB

Download
memory/2172-2-0x0000000000820000-0x0000000000C82000-memory.dmp

Filesize
4.4MB

Download
memory/2172-21-0x0000000000820000-0x0000000000C82000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

We care about your privacy.