asyncrat | 17dc116cfe82c641868c8df6de4e3ad67873686030833e1517d82954a806ef1e

General

Target

Client.exe
Size

47KB
MD5

8021ff369474ace0a0db381a89fb4a1b
SHA1

1e4413527f5f4928fb650fd205cb47b2f26cc334
SHA256

17dc116cfe82c641868c8df6de4e3ad67873686030833e1517d82954a806ef1e
SHA512

a755327bf4158c203ca2160088a3bf12c19b91eac8133fec6f4f5a164acf4acecb9247d8de11bc6eb0226e10f658d004b41dd287e5da9c3e9c28141c89a7d255
SSDEEP

768:oZztILg+kM+bihtelDSN+iV08YbygeqXJSZvEgK/JXZVc6KN:oZP0htKDs4zb11IZnkJXZVclN

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

127.0.0.1:8848

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
install
true
install_file
Wave-Setup.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x000b000000012263-14.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2192	Wave-Setup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3064	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2908	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2100	Client.exe
2100	Client.exe
2100	Client.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	Client.exe
Token: SeDebugPrivilege	2192	Wave-Setup.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2844	2100	Client.exe	30
PID 2100 wrote to memory of 2844	2100	Client.exe	30
PID 2100 wrote to memory of 2844	2100	Client.exe	30
PID 2100 wrote to memory of 2848	2100	Client.exe	32
PID 2100 wrote to memory of 2848	2100	Client.exe	32
PID 2100 wrote to memory of 2848	2100	Client.exe	32
PID 2848 wrote to memory of 3064	2848	cmd.exe	35
PID 2848 wrote to memory of 3064	2848	cmd.exe	35
PID 2848 wrote to memory of 3064	2848	cmd.exe	35
PID 2844 wrote to memory of 2908	2844	cmd.exe	34
PID 2844 wrote to memory of 2908	2844	cmd.exe	34
PID 2844 wrote to memory of 2908	2844	cmd.exe	34
PID 2848 wrote to memory of 2192	2848	cmd.exe	36
PID 2848 wrote to memory of 2192	2848	cmd.exe	36
PID 2848 wrote to memory of 2192	2848	cmd.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Wave-Setup" /tr '"C:\Users\Admin\AppData\Roaming\Wave-Setup.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Wave-Setup" /tr '"C:\Users\Admin\AppData\Roaming\Wave-Setup.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2908
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp84AA.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3064
- - C:\Users\Admin\AppData\Roaming\Wave-Setup.exe
    "C:\Users\Admin\AppData\Roaming\Wave-Setup.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp84AA.tmp.bat

Filesize
154B

MD5
8ee70885ca5dc8f5659f280d3b19f833

SHA1
d49dbdec60f3e01f477313c8cb464ce5c077ed3e

SHA256
72c1222bf5e23845476eaf909f8cb9b6899c377ea27913c418eac181da656e75

SHA512
62f6acbf3f3c5ad3388eb531622893300373b2e480d7d7c740962ba8dc56c1508c5b3bed0dca6dbbcf1369d3f48070925768f6004c4d6f1d79335b6b80032caf

Download Submit
C:\Users\Admin\AppData\Roaming\Wave-Setup.exe

Filesize
47KB

MD5
8021ff369474ace0a0db381a89fb4a1b

SHA1
1e4413527f5f4928fb650fd205cb47b2f26cc334

SHA256
17dc116cfe82c641868c8df6de4e3ad67873686030833e1517d82954a806ef1e

SHA512
a755327bf4158c203ca2160088a3bf12c19b91eac8133fec6f4f5a164acf4acecb9247d8de11bc6eb0226e10f658d004b41dd287e5da9c3e9c28141c89a7d255

Download Submit
memory/2100-0-0x000007FEF6173000-0x000007FEF6174000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x00000000000E0000-0x00000000000F2000-memory.dmp

Filesize
72KB

Download
memory/2100-2-0x000007FEF6170000-0x000007FEF6B5C000-memory.dmp

Filesize
9.9MB

Download
memory/2100-11-0x000007FEF6170000-0x000007FEF6B5C000-memory.dmp

Filesize
9.9MB

Download
memory/2192-16-0x0000000000B20000-0x0000000000B32000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads