asyncrat | 4d6aba3a870e2e47ce11508913f79a0cc66fbcd3c8f98fdb883a14e260a37e9d

Analysis

max time kernel
150s
max time network
145s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
16-11-2024 06:54

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General

Target

Api-AutoUpdater1.exe
Size

63KB
MD5

c6c31cfe36d8943447fb2a640a761d47
SHA1

db42b23edcffc2cf7ddc8964dbbb3184044a5c91
SHA256

4d6aba3a870e2e47ce11508913f79a0cc66fbcd3c8f98fdb883a14e260a37e9d
SHA512

fe25e50f154d555fb6c3402331dcf6efffdda0ed543fd5e3af89f10195da4527cd1c260a70ffc49e1be96060eb26057373bfa4047e49538eb90d2117eed3a25b
SSDEEP

768:auw6LVcsTPq781wC8A+Xj/4/kpqYCdi11+T4LMBGHmDbDPph0oXWOEDrG/2aSucV:TeQPcb1qzdi1+YUbdh9Hf6ucdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

specific-charles.gl.at.ply.gg:46182

Attributes

delay
1
install
true
install_file
Windows.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/0x002a000000045023-11.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-1-5-21-584106483-899802418-1877852863-1000\Control Panel\International\Geo\Nation	Api-AutoUpdater1.exe

Executes dropped EXE 1 IoCs

pid	Process
4988	Windows.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
1612	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
4652	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1424	vlc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4080	Api-AutoUpdater1.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe
4988	Windows.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1424	vlc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	Api-AutoUpdater1.exe
Token: SeDebugPrivilege	4080	Api-AutoUpdater1.exe
Token: SeDebugPrivilege	4988	Windows.exe
Token: SeDebugPrivilege	4988	Windows.exe

Suspicious use of FindShellTrayWindow 16 IoCs

pid	Process
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe

Suspicious use of SendNotifyMessage 15 IoCs

pid	Process
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe
1424	vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1424	vlc.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 2716	4080	Api-AutoUpdater1.exe	83
PID 4080 wrote to memory of 2716	4080	Api-AutoUpdater1.exe	83
PID 4080 wrote to memory of 2080	4080	Api-AutoUpdater1.exe	85
PID 4080 wrote to memory of 2080	4080	Api-AutoUpdater1.exe	85
PID 2080 wrote to memory of 1612	2080	cmd.exe	87
PID 2080 wrote to memory of 1612	2080	cmd.exe	87
PID 2716 wrote to memory of 4652	2716	cmd.exe	88
PID 2716 wrote to memory of 4652	2716	cmd.exe	88
PID 2080 wrote to memory of 4988	2080	cmd.exe	92
PID 2080 wrote to memory of 4988	2080	cmd.exe	92

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\Api-AutoUpdater1.exe
"C:\Users\Admin\AppData\Local\Temp\Api-AutoUpdater1.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows" /tr '"C:\Users\Admin\AppData\Roaming\Windows.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2716
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Windows" /tr '"C:\Users\Admin\AppData\Roaming\Windows.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4652
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA170.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1612
- - C:\Users\Admin\AppData\Roaming\Windows.exe
    "C:\Users\Admin\AppData\Roaming\Windows.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4988

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
PID:1012

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\HideConnect.bat" "
1⤵
PID:864

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\HideConnect.bat" "
1⤵
PID:2656

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\HideConnect.bat" "
1⤵
PID:4440

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\ReceiveDismount.bat" "
1⤵
PID:2296

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\ReceiveDismount.bat" "
1⤵
PID:672

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x444 0x490
1⤵
PID:2316

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\TraceNew.au"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1424

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\tmpA170.tmp.bat

Filesize
151B

MD5
c067cfc7cbe6e079f5bb5556f1fef810

SHA1
778a8165f3adbbd975876ffbcc88c7c5642f80d9

SHA256
3053f49211c3a1f59c5736a97b56549e9141a3f6165a7b0a0831e634f45340bd

SHA512
852f8c376f763597dfc32ffdebea7283d4f24953b079ff12fecb09251ab91f6e603a90aa310d5957fc3cb9e7b7eea0c6b381c628920a9b5a541aafae4a7ab2f7

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

Filesize
63KB

MD5
c6c31cfe36d8943447fb2a640a761d47

SHA1
db42b23edcffc2cf7ddc8964dbbb3184044a5c91

SHA256
4d6aba3a870e2e47ce11508913f79a0cc66fbcd3c8f98fdb883a14e260a37e9d

SHA512
fe25e50f154d555fb6c3402331dcf6efffdda0ed543fd5e3af89f10195da4527cd1c260a70ffc49e1be96060eb26057373bfa4047e49538eb90d2117eed3a25b

Download Submit
memory/1424-29-0x00007FFFDA650000-0x00007FFFDA667000-memory.dmp

Filesize
92KB

Download
memory/1424-55-0x00007FFFDA670000-0x00007FFFDA6A4000-memory.dmp

Filesize
208KB

Download
memory/1424-56-0x00007FFFC4E60000-0x00007FFFC5116000-memory.dmp

Filesize
2.7MB

Download
memory/1424-28-0x00007FFFE1360000-0x00007FFFE1378000-memory.dmp

Filesize
96KB

Download
memory/1424-54-0x00007FF701FB0000-0x00007FF7020A8000-memory.dmp

Filesize
992KB

Download
memory/1424-26-0x00007FFFDA670000-0x00007FFFDA6A4000-memory.dmp

Filesize
208KB

Download
memory/1424-25-0x00007FF701FB0000-0x00007FF7020A8000-memory.dmp

Filesize
992KB

Download
memory/1424-32-0x00007FFFDA2D0000-0x00007FFFDA2E1000-memory.dmp

Filesize
68KB

Download
memory/1424-34-0x00007FFFDA240000-0x00007FFFDA251000-memory.dmp

Filesize
68KB

Download
memory/1424-33-0x00007FFFDA2B0000-0x00007FFFDA2CD000-memory.dmp

Filesize
116KB

Download
memory/1424-27-0x00007FFFC4E60000-0x00007FFFC5116000-memory.dmp

Filesize
2.7MB

Download
memory/1424-30-0x00007FFFDA630000-0x00007FFFDA641000-memory.dmp

Filesize
68KB

Download
memory/1424-57-0x00007FFFC01D0000-0x00007FFFC1280000-memory.dmp

Filesize
16.7MB

Download
memory/1424-37-0x00007FFFD9BE0000-0x00007FFFD9C21000-memory.dmp

Filesize
260KB

Download
memory/1424-42-0x00007FFFD9B30000-0x00007FFFD9B41000-memory.dmp

Filesize
68KB

Download
memory/1424-35-0x00007FFFC44E0000-0x00007FFFC46EB000-memory.dmp

Filesize
2.0MB

Download
memory/1424-43-0x00007FFFC4230000-0x00007FFFC428C000-memory.dmp

Filesize
368KB

Download
memory/1424-36-0x00007FFFC01D0000-0x00007FFFC1280000-memory.dmp

Filesize
16.7MB

Download
memory/1424-31-0x00007FFFDA2F0000-0x00007FFFDA307000-memory.dmp

Filesize
92KB

Download
memory/1424-41-0x00007FFFD9B50000-0x00007FFFD9B61000-memory.dmp

Filesize
68KB

Download
memory/1424-40-0x00007FFFD9B70000-0x00007FFFD9B81000-memory.dmp

Filesize
68KB

Download
memory/1424-39-0x00007FFFD9B90000-0x00007FFFD9BA8000-memory.dmp

Filesize
96KB

Download
memory/1424-38-0x00007FFFD9BB0000-0x00007FFFD9BD1000-memory.dmp

Filesize
132KB

Download
memory/4080-3-0x00007FFFCA640000-0x00007FFFCB102000-memory.dmp

Filesize
10.8MB

Download
memory/4080-1-0x0000000000220000-0x0000000000236000-memory.dmp

Filesize
88KB

Download
memory/4080-2-0x00007FFFCA640000-0x00007FFFCB102000-memory.dmp

Filesize
10.8MB

Download
memory/4080-8-0x00007FFFCA640000-0x00007FFFCB102000-memory.dmp

Filesize
10.8MB

Download
memory/4080-0-0x00007FFFCA643000-0x00007FFFCA645000-memory.dmp

Filesize
8KB

Download