asyncrat | 7a46dd663f8ebdf8650db27f2c2f96f2b7c84ead71e885b5dbdcae88fd1ef3b8

Analysis

max time kernel
390s
max time network
380s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 03:06

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General

Target

Infected.exe
Size

63KB
MD5

07d4d7c92ca5211fd77e688d769a6495
SHA1

130414013920da27a5bd0cb24ab56e6a5594c3aa
SHA256

7a46dd663f8ebdf8650db27f2c2f96f2b7c84ead71e885b5dbdcae88fd1ef3b8
SHA512

e47e940ce8a577de3a831d07a75bf91b5828c5b15d99a893c2866876f7f5c324f870bf3472a02b25a1b4850c456c69f88a03a195183e4dc0365e147ff2c9b2fe
SSDEEP

768:spDxI6PfZ778/IC8A+X3uazcBRL5JTk1+T4KSBGHmDbD/ph0oXwjtoc9SuEdpqKX:+62ZBwdSJYUbdh9wmxuEdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

loans-merchant.gl.at.ply.gg:50335

Attributes

delay
1
install
true
install_file
System32.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/0x000a0000000120d5-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2416	System32.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
2448	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
1672	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1716	Infected.exe
1716	Infected.exe
1716	Infected.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe
2416	System32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1716	Infected.exe
Token: SeDebugPrivilege	2416	System32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2432	1716	Infected.exe	28
PID 1716 wrote to memory of 2432	1716	Infected.exe	28
PID 1716 wrote to memory of 2432	1716	Infected.exe	28
PID 1716 wrote to memory of 2248	1716	Infected.exe	30
PID 1716 wrote to memory of 2248	1716	Infected.exe	30
PID 1716 wrote to memory of 2248	1716	Infected.exe	30
PID 2248 wrote to memory of 2448	2248	cmd.exe	32
PID 2248 wrote to memory of 2448	2248	cmd.exe	32
PID 2248 wrote to memory of 2448	2248	cmd.exe	32
PID 2432 wrote to memory of 1672	2432	cmd.exe	33
PID 2432 wrote to memory of 1672	2432	cmd.exe	33
PID 2432 wrote to memory of 1672	2432	cmd.exe	33
PID 2248 wrote to memory of 2416	2248	cmd.exe	34
PID 2248 wrote to memory of 2416	2248	cmd.exe	34
PID 2248 wrote to memory of 2416	2248	cmd.exe	34

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:1716
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "System32" /tr '"C:\Users\Admin\AppData\Roaming\System32.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2432
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "System32" /tr '"C:\Users\Admin\AppData\Roaming\System32.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1672
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8A65.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2448
- - C:\Users\Admin\AppData\Roaming\System32.exe
    "C:\Users\Admin\AppData\Roaming\System32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8A65.tmp.bat

Filesize
152B

MD5
aa6e4bfdadebde9b893b30e3f60ff8dd

SHA1
c48220808dbea440a7765075cbdf1f578303a5bb

SHA256
6eb5bd1667a0ede75b59cf70117dd2e9f2cb004604c1b403c0fad11806b65b20

SHA512
1ebfda1a7e161d37acf085d4c3e1cdcc6cb9ee043f80f799a3e931bb6d4d53ea8d22cce87ba4cfb05df6cbab012587f61536ba752f1a78667b2b8cd9711e0504

Download Submit
C:\Users\Admin\AppData\Roaming\System32.exe

Filesize
63KB

MD5
07d4d7c92ca5211fd77e688d769a6495

SHA1
130414013920da27a5bd0cb24ab56e6a5594c3aa

SHA256
7a46dd663f8ebdf8650db27f2c2f96f2b7c84ead71e885b5dbdcae88fd1ef3b8

SHA512
e47e940ce8a577de3a831d07a75bf91b5828c5b15d99a893c2866876f7f5c324f870bf3472a02b25a1b4850c456c69f88a03a195183e4dc0365e147ff2c9b2fe

Download Submit
memory/1716-0-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

Filesize
4KB

Download
memory/1716-1-0x00000000013A0000-0x00000000013B6000-memory.dmp

Filesize
88KB

Download
memory/1716-2-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

Filesize
9.9MB

Download
memory/1716-12-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

Filesize
9.9MB

Download
memory/1716-11-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

Filesize
9.9MB

Download
memory/2416-17-0x0000000000DB0000-0x0000000000DC6000-memory.dmp

Filesize
88KB

Download