asyncrat | 26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

General

Target

04d0649b4bfa1dfeae3a8c86453397a3.exe
Size

45KB
MD5

04d0649b4bfa1dfeae3a8c86453397a3
SHA1

f47a6585df4bbb264017cacbb11a2d0e88fcea84
SHA256

26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870
SHA512

e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

8.tcp.ngrok.io:18318

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
v4WrWlQmMr9Nbg46PqpYZ1ZQie6iSq6f
anti_detection
false
autorun
true
bdos
false
delay
Default
host
8.tcp.ngrok.io
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
18318
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

resource	yara_rule
behavioral1/files/0x00040000000130e8-70.dat	asyncrat
behavioral1/files/0x00040000000130e8-69.dat	asyncrat
behavioral1/files/0x00040000000130e8-72.dat	asyncrat

Executes dropped EXE 1 IoCs

pid	Process
268	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
316	cmd.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

pid	Process
336	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1228	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1072	04d0649b4bfa1dfeae3a8c86453397a3.exe
1072	04d0649b4bfa1dfeae3a8c86453397a3.exe
1072	04d0649b4bfa1dfeae3a8c86453397a3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe
Token: SeDebugPrivilege	268	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	29
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	29
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	29
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	29
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	31
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	31
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	31
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	31
PID 1580 wrote to memory of 336	1580	cmd.exe	33
PID 1580 wrote to memory of 336	1580	cmd.exe	33
PID 1580 wrote to memory of 336	1580	cmd.exe	33
PID 1580 wrote to memory of 336	1580	cmd.exe	33
PID 316 wrote to memory of 1228	316	cmd.exe	34
PID 316 wrote to memory of 1228	316	cmd.exe	34
PID 316 wrote to memory of 1228	316	cmd.exe	34
PID 316 wrote to memory of 1228	316	cmd.exe	34
PID 316 wrote to memory of 268	316	cmd.exe	35
PID 316 wrote to memory of 268	316	cmd.exe	35
PID 316 wrote to memory of 268	316	cmd.exe	35
PID 316 wrote to memory of 268	316	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\04d0649b4bfa1dfeae3a8c86453397a3.exe
"C:\Users\Admin\AppData\Local\Temp\04d0649b4bfa1dfeae3a8c86453397a3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1580
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:336
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2156.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1228
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:268

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/268-73-0x0000000001200000-0x0000000001201000-memory.dmp

Filesize
4KB

Download
memory/268-76-0x0000000004D30000-0x0000000004D31000-memory.dmp

Filesize
4KB

Download
memory/1072-63-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

Download
memory/1072-60-0x0000000000D10000-0x0000000000D11000-memory.dmp

Filesize
4KB

Download
memory/1072-62-0x0000000075411000-0x0000000075413000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads