asyncrat | 3ec778942e2d803125fa551096a19a7f1e3cf0a9f513aa6633c96dd584dfe204

General

Target

Infected.exe
Size

63KB
MD5

f9caeabd873c3735af9b6bf7118d4955
SHA1

ce94b174c93e8716d5ea69cdffd8f83cc138c1cd
SHA256

3ec778942e2d803125fa551096a19a7f1e3cf0a9f513aa6633c96dd584dfe204
SHA512

12fdaa215362ef00d8258d3764d6bf0fe58241034f468d072fd748ac04cbc5df0c6fe5090ed1cdd7112af334ce47e9c881896c92761c7a3d5f12c0a2fc5b3dbc
SSDEEP

768:UURIVdHlA78rAC8A+XQaazcBRL5JTk1+T4KSBGHmDbD/ph0oXs0efLm3SuodpqKX:fwlgLdSJYUbdh9sxKiuodpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:8878

127.0.0.1:51852

born-me.gl.at.ply.gg:8878

born-me.gl.at.ply.gg:51852

Attributes

delay
1
install
true
install_file
1.exe
install_folder
%Temp%

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/0x000a00000001202c-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2444	1.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
2392	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
2784	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2448	Infected.exe
2448	Infected.exe
2448	Infected.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	Infected.exe
Token: SeDebugPrivilege	2444	1.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2368	2448	Infected.exe	30
PID 2448 wrote to memory of 2368	2448	Infected.exe	30
PID 2448 wrote to memory of 2368	2448	Infected.exe	30
PID 2448 wrote to memory of 1732	2448	Infected.exe	32
PID 2448 wrote to memory of 1732	2448	Infected.exe	32
PID 2448 wrote to memory of 1732	2448	Infected.exe	32
PID 2368 wrote to memory of 2784	2368	cmd.exe	34
PID 2368 wrote to memory of 2784	2368	cmd.exe	34
PID 2368 wrote to memory of 2784	2368	cmd.exe	34
PID 1732 wrote to memory of 2392	1732	cmd.exe	35
PID 1732 wrote to memory of 2392	1732	cmd.exe	35
PID 1732 wrote to memory of 2392	1732	cmd.exe	35
PID 1732 wrote to memory of 2444	1732	cmd.exe	36
PID 1732 wrote to memory of 2444	1732	cmd.exe	36
PID 1732 wrote to memory of 2444	1732	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\Infected.exe
"C:\Users\Admin\AppData\Local\Temp\Infected.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "1" /tr '"C:\Users\Admin\AppData\Local\Temp\1.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "1" /tr '"C:\Users\Admin\AppData\Local\Temp\1.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2784
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp9B94.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2392
- - C:\Users\Admin\AppData\Local\Temp\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2444

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\1.exe

Filesize
63KB

MD5
f9caeabd873c3735af9b6bf7118d4955

SHA1
ce94b174c93e8716d5ea69cdffd8f83cc138c1cd

SHA256
3ec778942e2d803125fa551096a19a7f1e3cf0a9f513aa6633c96dd584dfe204

SHA512
12fdaa215362ef00d8258d3764d6bf0fe58241034f468d072fd748ac04cbc5df0c6fe5090ed1cdd7112af334ce47e9c881896c92761c7a3d5f12c0a2fc5b3dbc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9B94.tmp.bat

Filesize
148B

MD5
4e352ae713f42ae0e93d130e5309676b

SHA1
42541b5468f7dd17c292a31b3a783fb242ebbe76

SHA256
db5fdcadf9e7e787a07499ac7ebffbddd5c98b31ea78b3b64fa6c5d21583998e

SHA512
0a6f156f75ed34694c7ccd3c9bb3a7bcdc4caa7ca82230cfae9c358901c5a33d52d411a1dfd9512d141caad1d16e3184053e795403d525e9f153943a424ae804

Download Submit
memory/2444-17-0x0000000001040000-0x0000000001056000-memory.dmp

Filesize
88KB

Download
memory/2448-0-0x000007FEF5713000-0x000007FEF5714000-memory.dmp

Filesize
4KB

Download
memory/2448-1-0x0000000001190000-0x00000000011A6000-memory.dmp

Filesize
88KB

Download
memory/2448-2-0x000007FEF5710000-0x000007FEF60FC000-memory.dmp

Filesize
9.9MB

Download
memory/2448-3-0x000007FEF5710000-0x000007FEF60FC000-memory.dmp

Filesize
9.9MB

Download
memory/2448-12-0x000007FEF5710000-0x000007FEF60FC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads