asyncrat | 0162b4457b84b9a3d7978bd41db509a734cb8d098b7b847dd37cd381c4af3d7b

General

Target
c353463fd4ebfca3c9e68fd388e7662a.exe
Size 63KB
Sample220130-qhs1csbefk
SHA256 0162b4457b84b9a3d7978bd41db509a734cb8d098b7b847dd37cd381c4af3d7b
MD5 c353463fd4ebfca3c9e68fd388e7662a
SHA1 4b26c42145976cc88208294d6f1eadf455b75a0d
SHA512 107a8b529ea103de1d226d9387d4886bea94ff7336d00736f7265aeebce7ad531c7189e1eddcd706d04bd4950c9537e511398dfbe67d5d92ab57fb18ffe55e19
MD5 SHA1 SHA512

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

helpmetakeyoursoul.awsmppl.com:228

Mutex

Mutex_qwqdanchun

Attributes

anti_vm
false
bsod
false
delay
1
install
true
install_file
Churkaebanaya.exe
install_folder
%AppData%
pastebin_config
null

aes.plain

Signatures

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

Async RAT payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/1524-54-0x0000000000230000-0x0000000000246000-memory.dmp	asyncrat
behavioral1/files/0x000700000001321e-57.dat	asyncrat
behavioral1/files/0x000700000001321e-58.dat	asyncrat
behavioral1/memory/1796-59-0x00000000003D0000-0x00000000003E6000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

pid	Process
1796	Churkaebanaya.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
564	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1240	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1524	c353463fd4ebfca3c9e68fd388e7662a.exe
1524	c353463fd4ebfca3c9e68fd388e7662a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	c353463fd4ebfca3c9e68fd388e7662a.exe
Token: SeDebugPrivilege	1796	Churkaebanaya.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 756	1524	c353463fd4ebfca3c9e68fd388e7662a.exe	27
PID 1524 wrote to memory of 756	1524	c353463fd4ebfca3c9e68fd388e7662a.exe	27
PID 1524 wrote to memory of 756	1524	c353463fd4ebfca3c9e68fd388e7662a.exe	27
PID 1524 wrote to memory of 680	1524	c353463fd4ebfca3c9e68fd388e7662a.exe	29
PID 1524 wrote to memory of 680	1524	c353463fd4ebfca3c9e68fd388e7662a.exe	29
PID 1524 wrote to memory of 680	1524	c353463fd4ebfca3c9e68fd388e7662a.exe	29
PID 756 wrote to memory of 564	756	cmd.exe	31
PID 756 wrote to memory of 564	756	cmd.exe	31
PID 756 wrote to memory of 564	756	cmd.exe	31
PID 680 wrote to memory of 1240	680	cmd.exe	32
PID 680 wrote to memory of 1240	680	cmd.exe	32
PID 680 wrote to memory of 1240	680	cmd.exe	32
PID 680 wrote to memory of 1796	680	cmd.exe	33
PID 680 wrote to memory of 1796	680	cmd.exe	33
PID 680 wrote to memory of 1796	680	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\c353463fd4ebfca3c9e68fd388e7662a.exe
"C:\Users\Admin\AppData\Local\Temp\c353463fd4ebfca3c9e68fd388e7662a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Churkaebanaya" /tr '"C:\Users\Admin\AppData\Roaming\Churkaebanaya.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:756
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Churkaebanaya" /tr '"C:\Users\Admin\AppData\Roaming\Churkaebanaya.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:564
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp31C.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:680
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1240
- - C:\Users\Admin\AppData\Roaming\Churkaebanaya.exe
    "C:\Users\Admin\AppData\Roaming\Churkaebanaya.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1796

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/1524-54-0x0000000000230000-0x0000000000246000-memory.dmp

Download

memory/1524-55-0x000000001B150000-0x000000001B152000-memory.dmp

Download

memory/1796-59-0x00000000003D0000-0x00000000003E6000-memory.dmp

Download

memory/1796-60-0x0000000000410000-0x0000000000412000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads