asyncrat | e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d

General

Target

e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
Size

63KB
MD5

b084f9671ccc68bff77cd3f15b784498
SHA1

c3ad6ea4d98109d3755b6eb8df7fd9410057662a
SHA256

e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d
SHA512

bd4c8ed42dc954381c899a6ad645e44744a4a9571fda0ef59f41e0b1aa78278f1f4d4a1cdf3e46524cc54241d1a150b9e59567be78fc7da2240c854c84c2b33f
SSDEEP

768:kk/9PXn1w787gC8A+XvqazcBRL5JTk1+T4KSBGHmDbD/ph0oXryg6WcOSu13pqKX:xR1gMdSJYUbdh91cZu13pqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

carolina-candles.gl.at.ply.gg:34316

Attributes

delay
1
install
true
install_file
square.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
behavioral2/files/0x001a00000002b1b1-12.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
5812	square.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
1912	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
700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
Token: SeDebugPrivilege	5812	square.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 4000	1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe	78
PID 1512 wrote to memory of 4000	1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe	78
PID 1512 wrote to memory of 752	1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe	80
PID 1512 wrote to memory of 752	1512	e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe	80
PID 4000 wrote to memory of 700	4000	cmd.exe	82
PID 4000 wrote to memory of 700	4000	cmd.exe	82
PID 752 wrote to memory of 1912	752	cmd.exe	83
PID 752 wrote to memory of 1912	752	cmd.exe	83
PID 752 wrote to memory of 5812	752	cmd.exe	84
PID 752 wrote to memory of 5812	752	cmd.exe	84

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\e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe
"C:\Users\Admin\AppData\Local\Temp\e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "square" /tr '"C:\Users\Admin\AppData\Roaming\square.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4000
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "square" /tr '"C:\Users\Admin\AppData\Roaming\square.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:700
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4815.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:752
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1912
- - C:\Users\Admin\AppData\Roaming\square.exe
    "C:\Users\Admin\AppData\Roaming\square.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:5812

Network

MITRE ATT&CK Enterprise v16

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\tmp4815.tmp.bat

Filesize
150B

MD5
64431dd6cbc7b8513c48b61165574815

SHA1
8f550a0b332de2d63b6e82bcacb808108bb3edf0

SHA256
9e5dcfd7bb7e76571d802d5d4c6c474e0e95469ac801fae0c09959a28e17de53

SHA512
30d5f69e9aa13f0243ef8e096a90052dd0fc1b1d2f0b9bf06ed87a3bc834f2ca4bea404cfd298bf262171ecc515553776196be14bf891c77dc417304cb3004e5

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

Filesize
63KB

MD5
b084f9671ccc68bff77cd3f15b784498

SHA1
c3ad6ea4d98109d3755b6eb8df7fd9410057662a

SHA256
e17921bea1470cc872b6a1a1ec2b31f82332bfefb57faaf1b782c5bda0d0530d

SHA512
bd4c8ed42dc954381c899a6ad645e44744a4a9571fda0ef59f41e0b1aa78278f1f4d4a1cdf3e46524cc54241d1a150b9e59567be78fc7da2240c854c84c2b33f

Download Submit
memory/1512-0-0x00007FF80FC53000-0x00007FF80FC55000-memory.dmp

Filesize
8KB

Download
memory/1512-1-0x0000000000820000-0x0000000000836000-memory.dmp

Filesize
88KB

Download
memory/1512-2-0x00007FF80FC50000-0x00007FF810712000-memory.dmp

Filesize
10.8MB

Download
memory/1512-3-0x00007FF80FC50000-0x00007FF810712000-memory.dmp

Filesize
10.8MB

Download
memory/1512-9-0x00007FF80FC50000-0x00007FF810712000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads