asyncrat | c7cfd6eb7f84680ea18209845e54a70e7ab07accdf94a9ef5b7399a9181af92f

General

Target
86e480a7a6bb028334079c5355dc2c24.exe
Size 1.8MB
Sample211007-bac7lsbfh4
SHA256 c7cfd6eb7f84680ea18209845e54a70e7ab07accdf94a9ef5b7399a9181af92f
MD5 86e480a7a6bb028334079c5355dc2c24
SHA1 5f131596c600fe3999cdb71741e7d2fe76f71614
SHA512 6a0c211a04edccd9664de24a2086600ffc9b78b49a01035e5d9bc747df0fc43d444bf57ee30311deaaaf4fb19b0a4a4e23ff5d299997027278eba87407e4a255
MD5 SHA1 SHA512

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

milla.publicvm.com:6606
milla.publicvm.com:7707
milla.publicvm.com:8808

Mutex

jvtuapotru

Attributes

anti_vm
false
bsod
false
delay
7
install
true
install_file
micosofte.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 1 IoCs

rat

resource	yara_rule
behavioral2/memory/664-120-0x0000000005330000-0x000000000533C000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

pid	Process
3972	micosofte.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
3956	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3828	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe
664	86e480a7a6bb028334079c5355dc2c24.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	664	86e480a7a6bb028334079c5355dc2c24.exe
Token: SeDebugPrivilege	3972	micosofte.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 664 wrote to memory of 2472	664	86e480a7a6bb028334079c5355dc2c24.exe	70
PID 664 wrote to memory of 2472	664	86e480a7a6bb028334079c5355dc2c24.exe	70
PID 664 wrote to memory of 2472	664	86e480a7a6bb028334079c5355dc2c24.exe	70
PID 664 wrote to memory of 2640	664	86e480a7a6bb028334079c5355dc2c24.exe	72
PID 664 wrote to memory of 2640	664	86e480a7a6bb028334079c5355dc2c24.exe	72
PID 664 wrote to memory of 2640	664	86e480a7a6bb028334079c5355dc2c24.exe	72
PID 2472 wrote to memory of 3956	2472	cmd.exe	74
PID 2472 wrote to memory of 3956	2472	cmd.exe	74
PID 2472 wrote to memory of 3956	2472	cmd.exe	74
PID 2640 wrote to memory of 3828	2640	cmd.exe	75
PID 2640 wrote to memory of 3828	2640	cmd.exe	75
PID 2640 wrote to memory of 3828	2640	cmd.exe	75
PID 2640 wrote to memory of 3972	2640	cmd.exe	76
PID 2640 wrote to memory of 3972	2640	cmd.exe	76
PID 2640 wrote to memory of 3972	2640	cmd.exe	76

C:\Users\Admin\AppData\Local\Temp\86e480a7a6bb028334079c5355dc2c24.exe
"C:\Users\Admin\AppData\Local\Temp\86e480a7a6bb028334079c5355dc2c24.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 86e480a7a6bb028334079c5355dc2c24 /tr '"C:\Users\Admin\AppData\Roaming\micosofte.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn 86e480a7a6bb028334079c5355dc2c24 /tr '"C:\Users\Admin\AppData\Roaming\micosofte.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:3956
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE634.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3828
- - C:\Users\Admin\AppData\Roaming\micosofte.exe
    "C:\Users\Admin\AppData\Roaming\micosofte.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3972

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/664-116-0x00000000057E0000-0x00000000057E1000-memory.dmp

Download

memory/664-119-0x00000000052E0000-0x00000000057DE000-memory.dmp

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memory/664-120-0x0000000005330000-0x000000000533C000-memory.dmp

Download

memory/664-117-0x00000000053C0000-0x00000000053C1000-memory.dmp

Download

memory/664-114-0x0000000000850000-0x0000000000851000-memory.dmp

Download

memory/664-118-0x0000000005460000-0x0000000005461000-memory.dmp

Download

memory/3972-135-0x0000000005110000-0x000000000560E000-memory.dmp

Download

memory/3972-136-0x0000000006240000-0x0000000006241000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads