asyncrat | 07afaa692f9b826c080cd9b1dc846bb8d6dc5404710241012f5c067d464692d3

General

Target

a208dc9a774f7ca9f5b258267183953b.exe
Size

524KB
MD5

a208dc9a774f7ca9f5b258267183953b
SHA1

c1d5ccda7b0dcd9fad25b88123a7158b417fc698
SHA256

07afaa692f9b826c080cd9b1dc846bb8d6dc5404710241012f5c067d464692d3
SHA512

90f0147436afabc9e8a7177b75982d9c146b25a766a46f8ca33a7e2bc3be87d8536a8bdfa839c3a6e9a079486079632c2ee97b1af33c2ba9c248c97ecf59b4ca

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

37.0.11.45:1604

37.0.11.45:3162

37.0.11.45:9495

37.0.11.45:448

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
pKLwmhjVAyNL9HzHN02o82BM56qjUmJq
anti_detection
false
autorun
false
bdos
false
delay
taskk
host
37.0.11.45
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
1604,3162,9495,448
version
0.5.7B

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
behavioral2/memory/1004-126-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/1004-127-0x000000000040C70E-mapping.dmp	asyncrat
behavioral2/memory/1004-142-0x0000000006C30000-0x0000000006C4B000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

a208dc9a774f7ca9f5b258267183953b.exe

description pid process target process

PID 1696 set thread context of 1004 1696 a208dc9a774f7ca9f5b258267183953b.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
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

2296 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

a208dc9a774f7ca9f5b258267183953b.exeRegSvcs.exe

pid process

1696 a208dc9a774f7ca9f5b258267183953b.exe
1004 RegSvcs.exe
1004 RegSvcs.exe
1004 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

a208dc9a774f7ca9f5b258267183953b.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1696 a208dc9a774f7ca9f5b258267183953b.exe
Token: SeDebugPrivilege 1004 RegSvcs.exe

description	pid	process	target process
PID 1696 set thread context of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe

pid	process
2296	schtasks.exe

pid	process
1696	a208dc9a774f7ca9f5b258267183953b.exe
1004	RegSvcs.exe
1004	RegSvcs.exe
1004	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1696	a208dc9a774f7ca9f5b258267183953b.exe
Token: SeDebugPrivilege	1004	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

a208dc9a774f7ca9f5b258267183953b.exeRegSvcs.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1696 wrote to memory of 2296	1696	a208dc9a774f7ca9f5b258267183953b.exe	schtasks.exe
PID 1696 wrote to memory of 2296	1696	a208dc9a774f7ca9f5b258267183953b.exe	schtasks.exe
PID 1696 wrote to memory of 2296	1696	a208dc9a774f7ca9f5b258267183953b.exe	schtasks.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1696 wrote to memory of 1004	1696	a208dc9a774f7ca9f5b258267183953b.exe	RegSvcs.exe
PID 1004 wrote to memory of 4016	1004	RegSvcs.exe	cmd.exe
PID 1004 wrote to memory of 4016	1004	RegSvcs.exe	cmd.exe
PID 1004 wrote to memory of 4016	1004	RegSvcs.exe	cmd.exe
PID 4016 wrote to memory of 3956	4016	cmd.exe	powershell.exe
PID 4016 wrote to memory of 3956	4016	cmd.exe	powershell.exe
PID 4016 wrote to memory of 3956	4016	cmd.exe	powershell.exe
PID 1004 wrote to memory of 2072	1004	RegSvcs.exe	cmd.exe
PID 1004 wrote to memory of 2072	1004	RegSvcs.exe	cmd.exe
PID 1004 wrote to memory of 2072	1004	RegSvcs.exe	cmd.exe
PID 2072 wrote to memory of 3860	2072	cmd.exe	powershell.exe
PID 2072 wrote to memory of 3860	2072	cmd.exe	powershell.exe
PID 2072 wrote to memory of 3860	2072	cmd.exe	powershell.exe
PID 1004 wrote to memory of 1460	1004	RegSvcs.exe	cmd.exe
PID 1004 wrote to memory of 1460	1004	RegSvcs.exe	cmd.exe
PID 1004 wrote to memory of 1460	1004	RegSvcs.exe	cmd.exe
PID 1460 wrote to memory of 2360	1460	cmd.exe	powershell.exe
PID 1460 wrote to memory of 2360	1460	cmd.exe	powershell.exe
PID 1460 wrote to memory of 2360	1460	cmd.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\a208dc9a774f7ca9f5b258267183953b.exe
"C:\Users\Admin\AppData\Local\Temp\a208dc9a774f7ca9f5b258267183953b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\orRYrJhV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp746A.tmp"
2⤵
- Creates scheduled task(s)
PID:2296

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1004

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\epfevf.exe"' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:4016

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\epfevf.exe"'
4⤵
PID:3956

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\mtbxpq.exe"' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:2072

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\mtbxpq.exe"'
4⤵
PID:3860

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\lkjveq.exe"' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:1460

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\lkjveq.exe"'
4⤵
PID:2360

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp746A.tmp
MD5
6ebf9a72b8d6735866a8bb9a1b72f57e

SHA1
23c6f17f8588046ed8df60cf5ebeea8650150685

SHA256
7755003b6711f1c263e7d4f7f3c11dda01778a0d16fe0b936ce9eb0c178b7a57

SHA512
16f025b615251c75c87dc75f5a79462bb0ddb3d9dff4bd2ae016c3c74483d4d84358c8e47d467156a0d5bce61fdb63d36c8f5fd2bcf434a5925e85673e462c6b

Download Submit
memory/1004-140-0x00000000071C0000-0x0000000007219000-memory.dmp

Filesize
356KB

Download
memory/1004-139-0x0000000007030000-0x00000000070BD000-memory.dmp

Filesize
564KB

Download
memory/1004-134-0x0000000006AA0000-0x0000000006AA1000-memory.dmp

Filesize
4KB

Download
memory/1004-133-0x0000000005C50000-0x0000000005C51000-memory.dmp

Filesize
4KB

Download
memory/1004-135-0x0000000006A20000-0x0000000006A99000-memory.dmp

Filesize
484KB

Download
memory/1004-142-0x0000000006C30000-0x0000000006C4B000-memory.dmp

Filesize
108KB

Download
memory/1004-141-0x0000000007220000-0x0000000007221000-memory.dmp

Filesize
4KB

Download
memory/1004-127-0x000000000040C70E-mapping.dmp

Download
memory/1004-138-0x0000000006BE0000-0x0000000006BE4000-memory.dmp

Filesize
16KB

Download
memory/1004-137-0x0000000006C70000-0x0000000006C71000-memory.dmp

Filesize
4KB

Download
memory/1004-126-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1004-136-0x0000000006B70000-0x0000000006B71000-memory.dmp

Filesize
4KB

Download
memory/1004-130-0x00000000051E0000-0x00000000051E1000-memory.dmp

Filesize
4KB

Download
memory/1460-151-0x0000000000000000-mapping.dmp

Download
memory/1696-120-0x0000000006A00000-0x0000000006A01000-memory.dmp

Filesize
4KB

Download
memory/1696-118-0x0000000005220000-0x0000000005221000-memory.dmp

Filesize
4KB

Download
memory/1696-116-0x0000000005270000-0x0000000005271000-memory.dmp

Filesize
4KB

Download
memory/1696-117-0x0000000004E50000-0x0000000004E51000-memory.dmp

Filesize
4KB

Download
memory/1696-123-0x000000000AF50000-0x000000000AF7D000-memory.dmp

Filesize
180KB

Download
memory/1696-114-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/1696-122-0x00000000087D0000-0x000000000884D000-memory.dmp

Filesize
500KB

Download
memory/1696-121-0x0000000006980000-0x0000000006982000-memory.dmp

Filesize
8KB

Download
memory/1696-119-0x0000000004D70000-0x000000000526E000-memory.dmp

Filesize
5.0MB

Download
memory/2072-147-0x0000000000000000-mapping.dmp

Download
memory/2296-124-0x0000000000000000-mapping.dmp

Download
memory/2360-152-0x0000000000000000-mapping.dmp

Download
memory/3860-148-0x0000000000000000-mapping.dmp

Download
memory/3956-145-0x0000000000000000-mapping.dmp

Download
memory/4016-144-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads