asyncrat | e2025b1f07285cf7a6cb0dbcd05933db631202a3af5af06719548f01ba2fe73f

General

Target

Loader.exe
Size

63KB
MD5

004ba87604ac07c77d161b96bfd97a34
SHA1

8f089b87f831946c617af9702ba79d20ddaf7394
SHA256

bfbef5852faa1e2de88f380c620af93eb08114363c1d72d74d5809e7ff70f881
SHA512

322a6fc44d0390ad55a7bf0cfe268814e00df2e757a8088d11d7addd9d2b089e4c62d4c955f2272b7ec50033e68a59f72778912cbae125e01c5b74c1b2909b8a
SSDEEP

768:Cuw6LVcsTPq781wC8A+Xjapeyr61urX1+T4uoSBGHmDbDTph0oXzkKhbSuEdpqKX:LeQPcUn0tYUbJh9zkw+uEdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

anyone-blogging.gl.at.ply.gg:22284

Attributes

delay
1
install
true
install_file
Windows.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral3/files/0x003100000001867d-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2012	Windows.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

evasion

pid	Process
2356	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
3044	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2624	Loader.exe
2624	Loader.exe
2624	Loader.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	Loader.exe
Token: SeDebugPrivilege	2624	Loader.exe
Token: SeDebugPrivilege	2012	Windows.exe
Token: SeDebugPrivilege	2012	Windows.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2648	2624	Loader.exe	30
PID 2624 wrote to memory of 2648	2624	Loader.exe	30
PID 2624 wrote to memory of 2648	2624	Loader.exe	30
PID 2624 wrote to memory of 2828	2624	Loader.exe	32
PID 2624 wrote to memory of 2828	2624	Loader.exe	32
PID 2624 wrote to memory of 2828	2624	Loader.exe	32
PID 2648 wrote to memory of 3044	2648	cmd.exe	34
PID 2648 wrote to memory of 3044	2648	cmd.exe	34
PID 2648 wrote to memory of 3044	2648	cmd.exe	34
PID 2828 wrote to memory of 2356	2828	cmd.exe	35
PID 2828 wrote to memory of 2356	2828	cmd.exe	35
PID 2828 wrote to memory of 2356	2828	cmd.exe	35
PID 2828 wrote to memory of 2012	2828	cmd.exe	36
PID 2828 wrote to memory of 2012	2828	cmd.exe	36
PID 2828 wrote to memory of 2012	2828	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\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows" /tr '"C:\Users\Admin\AppData\Roaming\Windows.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Windows" /tr '"C:\Users\Admin\AppData\Roaming\Windows.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3044
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1FE0.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2356
- - C:\Users\Admin\AppData\Roaming\Windows.exe
    "C:\Users\Admin\AppData\Roaming\Windows.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2012

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\tmp1FE0.tmp.bat

Filesize
151B

MD5
29a311ab154571d32f2e5d87dc89cc1e

SHA1
df60be28b09e9adb47678756d26d2e2ff9f89299

SHA256
7a8deab333d85bc64e2a66c153ec08bfbc97601240f828a73ce5fda3caa355ee

SHA512
3f602e5de98446416ac2bac44806bb74cb88e64ee52167931907196933808c588bfd190c5fcbcb61f3c220c691ffd26f13f688711c6513cfab13e39998db70c4

Download Submit
C:\Users\Admin\AppData\Roaming\Windows.exe

Filesize
63KB

MD5
004ba87604ac07c77d161b96bfd97a34

SHA1
8f089b87f831946c617af9702ba79d20ddaf7394

SHA256
bfbef5852faa1e2de88f380c620af93eb08114363c1d72d74d5809e7ff70f881

SHA512
322a6fc44d0390ad55a7bf0cfe268814e00df2e757a8088d11d7addd9d2b089e4c62d4c955f2272b7ec50033e68a59f72778912cbae125e01c5b74c1b2909b8a

Download Submit
memory/2012-17-0x0000000000190000-0x00000000001A6000-memory.dmp

Filesize
88KB

Download
memory/2624-12-0x000007FEF6190000-0x000007FEF6B7C000-memory.dmp

Filesize
9.9MB

Download
memory/2624-10-0x000007FEF6190000-0x000007FEF6B7C000-memory.dmp

Filesize
9.9MB

Download
memory/2624-2-0x000007FEF6190000-0x000007FEF6B7C000-memory.dmp

Filesize
9.9MB

Download
memory/2624-1-0x0000000000230000-0x0000000000246000-memory.dmp

Filesize
88KB

Download
memory/2624-0-0x000007FEF6193000-0x000007FEF6194000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads