asyncrat | fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 10:14

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General

Target

fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
Size

63KB
MD5

aba726ec9183c855cfa084ee66f49f7f
SHA1

f12f9cf0920b0d3a76bb16027539ba0c13da035d
SHA256

fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71
SHA512

a03a1c596e9570c6766d051d76e1a14894852cfa3889dd567f9e187be1055a49479355b8ed3a876a2934308aac945b232c1b206664614b66791ed0cc1f0b5c1f
SSDEEP

1536:NX9rsr4iD7jhBYUbghiLRmuhidpqKmY7:Vh44E77YUbgPGz

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

one-accordance.gl.at.ply.gg:9590

Attributes

delay
1
install
true
install_file
Windows Defender.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/0x000b000000023bac-11.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe

Executes dropped EXE 1 IoCs

pid	Process
3100	Windows Defender.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
1892	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
3580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe
3100	Windows Defender.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
Token: SeDebugPrivilege	3100	Windows Defender.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 520 wrote to memory of 5064	520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe	85
PID 520 wrote to memory of 5064	520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe	85
PID 520 wrote to memory of 1764	520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe	87
PID 520 wrote to memory of 1764	520	fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe	87
PID 1764 wrote to memory of 1892	1764	cmd.exe	89
PID 1764 wrote to memory of 1892	1764	cmd.exe	89
PID 5064 wrote to memory of 3580	5064	cmd.exe	90
PID 5064 wrote to memory of 3580	5064	cmd.exe	90
PID 1764 wrote to memory of 3100	1764	cmd.exe	98
PID 1764 wrote to memory of 3100	1764	cmd.exe	98

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\fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe
"C:\Users\Admin\AppData\Local\Temp\fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:520
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender" /tr '"C:\Users\Admin\AppData\Roaming\Windows Defender.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5064
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender" /tr '"C:\Users\Admin\AppData\Roaming\Windows Defender.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3580
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9B55.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1892
- - C:\Users\Admin\AppData\Roaming\Windows Defender.exe
    "C:\Users\Admin\AppData\Roaming\Windows Defender.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3100

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\tmp9B55.tmp.bat

Filesize
160B

MD5
5f9c3651f3919986953065d77cf7f0e2

SHA1
bd0f16f98aaf4c67a707e58519471066ce8509fc

SHA256
709097578436c7569d22b0930b2fc55b1c3762e1b69d3ab3fc6f3c186913b81d

SHA512
1fcccaa4d92e97f1d18458fb5c6823f96d536f9a9c772ea5d2f1754bb3f9e06326d0246ca241d44ee4e4bab384c3c0654350addca4ce521892aeebbe3cfabc7f

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

Filesize
63KB

MD5
aba726ec9183c855cfa084ee66f49f7f

SHA1
f12f9cf0920b0d3a76bb16027539ba0c13da035d

SHA256
fb680425e6edc0fa4d2fe526cd78d6ec69683fcafe57744993c8b7192b2c0a71

SHA512
a03a1c596e9570c6766d051d76e1a14894852cfa3889dd567f9e187be1055a49479355b8ed3a876a2934308aac945b232c1b206664614b66791ed0cc1f0b5c1f

Download Submit
memory/520-0-0x00007FF9FF643000-0x00007FF9FF645000-memory.dmp

Filesize
8KB

Download
memory/520-1-0x0000000000F50000-0x0000000000F66000-memory.dmp

Filesize
88KB

Download
memory/520-2-0x00007FF9FF640000-0x00007FFA00101000-memory.dmp

Filesize
10.8MB

Download
memory/520-7-0x00007FF9FF640000-0x00007FFA00101000-memory.dmp

Filesize
10.8MB

Download
memory/520-8-0x00007FF9FF640000-0x00007FFA00101000-memory.dmp

Filesize
10.8MB

Download