asyncrat | 5c43677f344e5f1bfaf29aeba0e69a020eef92b8555d6637f74de0e404a640f2

General

Target

47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
Size

1.5MB
MD5

26454b46bef46b885e8477922d3d08d4
SHA1

add2c041f12ce35e621dd3e162a61a7196eee48c
SHA256

47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282
SHA512

a9a41ccbc6b98cbfb7a0b6c2843f35fc895e6ec9556848ac4dd93e8e2a40b2079b906c2ee6fa90857cf267215cf2088c8f97828c9b3e40f80e6ad2e57d67da98
SSDEEP

49152:Ag6cnCiIkofSoKkVOUUi12RK27PB6yy0E6MenVeUQu:4VdSF3i12XDB62thUUj

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

190.123.44.184:8012

190.123.44.184:8201

190.123.44.184:3321

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.
rat asyncrat

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1544-79-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1544-84-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1544-82-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

DllHelper.exe

pid process

1640 DllHelper.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1224 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe

pid process

1200 47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

DllHelper.exe

description pid process target process

PID 1640 set thread context of 1544 1640 DllHelper.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1300 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1356 PING.EXE

pid	process
1640	DllHelper.exe

pid	process
1224	cmd.exe

description	pid	process	target process
PID 1640 set thread context of 1544	1640	DllHelper.exe	InstallUtil.exe

pid	process
1300	schtasks.exe

pid	process
1356	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exeDllHelper.exe

pid	process
1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
1640	DllHelper.exe
1640	DllHelper.exe
1640	DllHelper.exe
1640	DllHelper.exe
1640	DllHelper.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.execmd.exeDllHelper.exe

description	pid	process	target process
PID 1200 wrote to memory of 1300	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	schtasks.exe
PID 1200 wrote to memory of 1300	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	schtasks.exe
PID 1200 wrote to memory of 1300	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	schtasks.exe
PID 1200 wrote to memory of 1300	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	schtasks.exe
PID 1200 wrote to memory of 1640	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	DllHelper.exe
PID 1200 wrote to memory of 1640	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	DllHelper.exe
PID 1200 wrote to memory of 1640	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	DllHelper.exe
PID 1200 wrote to memory of 1640	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	DllHelper.exe
PID 1200 wrote to memory of 1224	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	cmd.exe
PID 1200 wrote to memory of 1224	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	cmd.exe
PID 1200 wrote to memory of 1224	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	cmd.exe
PID 1200 wrote to memory of 1224	1200	47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe	cmd.exe
PID 1224 wrote to memory of 1760	1224	cmd.exe	chcp.com
PID 1224 wrote to memory of 1760	1224	cmd.exe	chcp.com
PID 1224 wrote to memory of 1760	1224	cmd.exe	chcp.com
PID 1224 wrote to memory of 1760	1224	cmd.exe	chcp.com
PID 1224 wrote to memory of 1356	1224	cmd.exe	PING.EXE
PID 1224 wrote to memory of 1356	1224	cmd.exe	PING.EXE
PID 1224 wrote to memory of 1356	1224	cmd.exe	PING.EXE
PID 1224 wrote to memory of 1356	1224	cmd.exe	PING.EXE
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe
PID 1640 wrote to memory of 1544	1640	DllHelper.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe
"C:\Users\Admin\AppData\Local\Temp\47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1200

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /create /tn COMSurrogate /f /sc onlogon /rl highest /tr "C:\Users\Admin\AppVerif\DllHelper.exe"
2⤵
- Creates scheduled task(s)
PID:1300

C:\Users\Admin\AppVerif\DllHelper.exe
"C:\Users\Admin\AppVerif\DllHelper.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
3⤵
PID:1544

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\47999d24a62260aceac07d042e065e8000173124ca9b8d13ac2516338b5cd282.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1224

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:1760

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1356

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppVerif\DllHelper.exe
Filesize
767.5MB

MD5
c754ee72428be0a61771cbd91378f979

SHA1
1fa98e9cba7b2b31b45ea01e17fe7f4a74bebd43

SHA256
a20f9f7b015122b7d162c0dd1b738e0553b0800e4fa9c0cd6d770e0edc5cf583

SHA512
6fd29bc1603863e9d3f1cc8f4261c285c9854b95dd133a2b6b1852d1fe6ea713dc3ed7f8278adfa126e3c5bb724acc0072bdf582e1df83d6cac527b70208dcd5

Download Submit
\Users\Admin\AppVerif\DllHelper.exe
Filesize
767.5MB

MD5
c754ee72428be0a61771cbd91378f979

SHA1
1fa98e9cba7b2b31b45ea01e17fe7f4a74bebd43

SHA256
a20f9f7b015122b7d162c0dd1b738e0553b0800e4fa9c0cd6d770e0edc5cf583

SHA512
6fd29bc1603863e9d3f1cc8f4261c285c9854b95dd133a2b6b1852d1fe6ea713dc3ed7f8278adfa126e3c5bb724acc0072bdf582e1df83d6cac527b70208dcd5

Download Submit
memory/1200-66-0x0000000002580000-0x00000000026EA000-memory.dmp

Filesize
1.4MB

Download
memory/1200-58-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1200-57-0x0000000002580000-0x00000000026EA000-memory.dmp

Filesize
1.4MB

Download
memory/1200-56-0x0000000002580000-0x00000000026EA000-memory.dmp

Filesize
1.4MB

Download
memory/1200-55-0x0000000001E40000-0x0000000002576000-memory.dmp

Filesize
7.2MB

Download
memory/1200-60-0x0000000001E40000-0x0000000002576000-memory.dmp

Filesize
7.2MB

Download
memory/1200-64-0x0000000002580000-0x00000000026EA000-memory.dmp

Filesize
1.4MB

Download
memory/1200-54-0x0000000001E40000-0x0000000002576000-memory.dmp

Filesize
7.2MB

Download
memory/1224-65-0x0000000000000000-mapping.dmp

Download
memory/1300-59-0x0000000000000000-mapping.dmp

Download
memory/1356-68-0x0000000000000000-mapping.dmp

Download
memory/1544-76-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1544-79-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1544-82-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1544-84-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1640-75-0x000000000C1F0000-0x000000000C2A2000-memory.dmp

Filesize
712KB

Download
memory/1640-72-0x0000000002650000-0x00000000027BA000-memory.dmp

Filesize
1.4MB

Download
memory/1640-74-0x000000000C1F0000-0x000000000C2A2000-memory.dmp

Filesize
712KB

Download
memory/1640-69-0x0000000001F10000-0x0000000002646000-memory.dmp

Filesize
7.2MB

Download
memory/1640-78-0x0000000002650000-0x00000000027BA000-memory.dmp

Filesize
1.4MB

Download
memory/1640-80-0x0000000002650000-0x00000000027BA000-memory.dmp

Filesize
1.4MB

Download
memory/1640-71-0x0000000002650000-0x00000000027BA000-memory.dmp

Filesize
1.4MB

Download
memory/1640-62-0x0000000000000000-mapping.dmp

Download
memory/1640-70-0x0000000001F10000-0x0000000002646000-memory.dmp

Filesize
7.2MB

Download
memory/1760-67-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads