asyncrat | d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50

General

Target

d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe
Size

63KB
MD5

8b8cab1d331fe91ec63e79425bf6b38c
SHA1

d03b90745e665b12cc6ab8b2e161ae1d4dddd568
SHA256

d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50
SHA512

9f579445f26f62ca0921090202cfca6bfd2aa168a4a99452638c324e158648a0b5974854e6365956be62fa3db73be789fed6818d415cea4e81ddf57ae014c5ac
SSDEEP

768:8kP9PXn1w787gC8A+XvtaZ/e9IDjELtF1+T4oSBGHmDbDvph0oX/56tDtl6wwSuW:BR1gElfjsrrYUbFh9Q2w3uwdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

147.185.221.21:33927

Attributes

delay
1
install
true
install_file
Update.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
behavioral1/files/0x0008000000012118-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
324	Update.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
2780	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
1812	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe
1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe
1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe
Token: SeDebugPrivilege	324	Update.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1424 wrote to memory of 2788	1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe	31
PID 1424 wrote to memory of 2788	1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe	31
PID 1424 wrote to memory of 2788	1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe	31
PID 1424 wrote to memory of 2972	1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe	32
PID 1424 wrote to memory of 2972	1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe	32
PID 1424 wrote to memory of 2972	1424	d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe	32
PID 2788 wrote to memory of 1812	2788	cmd.exe	35
PID 2788 wrote to memory of 1812	2788	cmd.exe	35
PID 2788 wrote to memory of 1812	2788	cmd.exe	35
PID 2972 wrote to memory of 2780	2972	cmd.exe	36
PID 2972 wrote to memory of 2780	2972	cmd.exe	36
PID 2972 wrote to memory of 2780	2972	cmd.exe	36
PID 2972 wrote to memory of 324	2972	cmd.exe	37
PID 2972 wrote to memory of 324	2972	cmd.exe	37
PID 2972 wrote to memory of 324	2972	cmd.exe	37

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\d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe
"C:\Users\Admin\AppData\Local\Temp\d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1812
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpED8A.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2780
- - C:\Users\Admin\AppData\Roaming\Update.exe
    "C:\Users\Admin\AppData\Roaming\Update.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:324

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\tmpED8A.tmp.bat

Filesize
150B

MD5
698c7a00c5597d9a01b249abe8272143

SHA1
16feaffefeb4e79bbc27ff63e6033a697be689f0

SHA256
43974d9155fa3b34a0029e03c3d1e5de24a00786f8cb440698f9b5046e9263ce

SHA512
1035042034d8490b17c0713fc8552cf1db0ffe2572520797cc2a39f6f9cda042173654cd40ea06ca486fbc057ca7fdeeaa2392fa2d398b9bdee6b798b76604e4

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

Filesize
63KB

MD5
8b8cab1d331fe91ec63e79425bf6b38c

SHA1
d03b90745e665b12cc6ab8b2e161ae1d4dddd568

SHA256
d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50

SHA512
9f579445f26f62ca0921090202cfca6bfd2aa168a4a99452638c324e158648a0b5974854e6365956be62fa3db73be789fed6818d415cea4e81ddf57ae014c5ac

Download Submit
memory/324-17-0x0000000001270000-0x0000000001286000-memory.dmp

Filesize
88KB

Download
memory/1424-0-0x000007FEF5563000-0x000007FEF5564000-memory.dmp

Filesize
4KB

Download
memory/1424-1-0x0000000000DA0000-0x0000000000DB6000-memory.dmp

Filesize
88KB

Download
memory/1424-2-0x000007FEF5560000-0x000007FEF5F4C000-memory.dmp

Filesize
9.9MB

Download
memory/1424-3-0x000007FEF5560000-0x000007FEF5F4C000-memory.dmp

Filesize
9.9MB

Download
memory/1424-13-0x000007FEF5560000-0x000007FEF5F4C000-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