asyncrat | cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-08-2024 11:58

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General

Target

cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
Size

74KB
MD5

4fb681131f7ac7824c4f0afd337986d9
SHA1

c746978c6c091d94f2bbd17b1ad5954c4306bece
SHA256

cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80
SHA512

b5c2c3f6b5fe4845c0462059d9177b0cf56a36fe528745a9ea7f27120fdf2184b44be4dc5195d9e0d98a5a5987b8bc212707b3b4cc5ada9203db61f9859f3868
SSDEEP

1536:EUo0cxhzjBCViPMVXOS0GIkH1b6/20AuQQzcqLVclN:EUlcxhzVCiPMVOkH1b6+/QbBY

Score

10^/10

asyncrat 100 rnd rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

100 RND

91.92.243.191:5401

Mutex

6871a79e-e4f7-4fb3-ae38-dc20c1d657a0

Attributes

delay
1
install
true
install_file
hyperhostvc.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/0x000a00000002337c-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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe

Executes dropped EXE 1 IoCs

pid	Process
1476	hyperhostvc.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
2036	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
3556	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe
1476	hyperhostvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
Token: SeDebugPrivilege	1476	hyperhostvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1476	hyperhostvc.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 396	2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe	86
PID 2724 wrote to memory of 396	2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe	86
PID 2724 wrote to memory of 2080	2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe	88
PID 2724 wrote to memory of 2080	2724	cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe	88
PID 2080 wrote to memory of 2036	2080	cmd.exe	90
PID 2080 wrote to memory of 2036	2080	cmd.exe	90
PID 396 wrote to memory of 3556	396	cmd.exe	91
PID 396 wrote to memory of 3556	396	cmd.exe	91
PID 2080 wrote to memory of 1476	2080	cmd.exe	92
PID 2080 wrote to memory of 1476	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\cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
"C:\Users\Admin\AppData\Local\Temp\cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hyperhostvc" /tr '"C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:396
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "hyperhostvc" /tr '"C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3556
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7918.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2036
- - C:\Users\Admin\AppData\Roaming\hyperhostvc.exe
    "C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1476

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\tmp7918.tmp.bat

Filesize
155B

MD5
0970c1dbd6434cb26a2ec07b922a60f6

SHA1
8c6af25769a45c26b11bff1c69a42b2c6d76b096

SHA256
de75a3c36ee6db284aca309996f6fc055590d4020ad98c93a1d3d8866a450941

SHA512
cb6e4acf6aae7431db384351b92953321eed465e315ba25a75b9c4bb63fac8582bf5180138f21fd9f9a48baaf8c53b30c384c85e41484feadf8e25328991a066

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

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

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

Filesize
74KB

MD5
4fb681131f7ac7824c4f0afd337986d9

SHA1
c746978c6c091d94f2bbd17b1ad5954c4306bece

SHA256
cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80

SHA512
b5c2c3f6b5fe4845c0462059d9177b0cf56a36fe528745a9ea7f27120fdf2184b44be4dc5195d9e0d98a5a5987b8bc212707b3b4cc5ada9203db61f9859f3868

Download Submit
memory/2724-0-0x00007FFBA6B53000-0x00007FFBA6B55000-memory.dmp

Filesize
8KB

Download
memory/2724-1-0x0000000000600000-0x0000000000618000-memory.dmp

Filesize
96KB

Download
memory/2724-3-0x00007FFBA6B50000-0x00007FFBA7611000-memory.dmp

Filesize
10.8MB

Download
memory/2724-8-0x00007FFBA6B50000-0x00007FFBA7611000-memory.dmp

Filesize
10.8MB

Download
memory/2724-14-0x00007FFBA6B50000-0x00007FFBA7611000-memory.dmp

Filesize
10.8MB

Download