asyncrat | df6a38e3658e607ca005881650480cb7485dce3fa1d9480a25b8858c17bcc509

General

Target

AimAssist.exe
Size

74KB
MD5

652d8971b1de9ac91d9dc53150a83a6f
SHA1

f58b1ba78665d08a52d355ba626fa8d2a72d8f19
SHA256

df6a38e3658e607ca005881650480cb7485dce3fa1d9480a25b8858c17bcc509
SHA512

4047192ec25582eca08e58b316694135054ba41de91df1d914f9565acc773b9bde7d0a426d70a878a7ea13720707fe462f73ad5fcd829322cd5edc312f3ae7d4
SSDEEP

1536:hUOgcxLVNCBWPMVWSIIcH1bi/NWQQzcSLVclN:hUfcxLfaWPMVWSOH1bilbQDBY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

147.185.221.225:54312

Mutex

dzhpquvlshqpbv

Attributes

delay
1
install
true
install_file
Programs.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

VenomRAT 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/2304-1-0x0000000000E90000-0x0000000000EA8000-memory.dmp	VenomRAT
behavioral1/files/0x0008000000016cec-16.dat	VenomRAT
behavioral1/memory/2900-18-0x00000000001F0000-0x0000000000208000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/files/0x0008000000016cec-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

Programs.exe

pid	Process
2900	Programs.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

Processes:

timeout.exe

pid	Process
2288	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

Processes:

schtasks.exe

pid	Process
2748	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

AimAssist.exePrograms.exe

pid	Process
2304	AimAssist.exe
2304	AimAssist.exe
2304	AimAssist.exe
2900	Programs.exe
2900	Programs.exe
2900	Programs.exe
2900	Programs.exe
2900	Programs.exe
2900	Programs.exe
2900	Programs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

AimAssist.exePrograms.exe

description	pid	Process
Token: SeDebugPrivilege	2304	AimAssist.exe
Token: SeDebugPrivilege	2900	Programs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Programs.exe

pid	Process
2900	Programs.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

AimAssist.execmd.execmd.exe

description	pid	Process	procid_target
PID 2304 wrote to memory of 2380	2304	AimAssist.exe	30
PID 2304 wrote to memory of 2380	2304	AimAssist.exe	30
PID 2304 wrote to memory of 2380	2304	AimAssist.exe	30
PID 2304 wrote to memory of 2052	2304	AimAssist.exe	32
PID 2304 wrote to memory of 2052	2304	AimAssist.exe	32
PID 2304 wrote to memory of 2052	2304	AimAssist.exe	32
PID 2380 wrote to memory of 2748	2380	cmd.exe	34
PID 2380 wrote to memory of 2748	2380	cmd.exe	34
PID 2380 wrote to memory of 2748	2380	cmd.exe	34
PID 2052 wrote to memory of 2288	2052	cmd.exe	35
PID 2052 wrote to memory of 2288	2052	cmd.exe	35
PID 2052 wrote to memory of 2288	2052	cmd.exe	35
PID 2052 wrote to memory of 2900	2052	cmd.exe	36
PID 2052 wrote to memory of 2900	2052	cmd.exe	36
PID 2052 wrote to memory of 2900	2052	cmd.exe	36

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\AimAssist.exe
"C:\Users\Admin\AppData\Local\Temp\AimAssist.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Programs" /tr '"C:\Users\Admin\AppData\Roaming\Programs.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2380
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Programs" /tr '"C:\Users\Admin\AppData\Roaming\Programs.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2748
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp90AB.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2288
- - C:\Users\Admin\AppData\Roaming\Programs.exe
    "C:\Users\Admin\AppData\Roaming\Programs.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp90AB.tmp.bat

Filesize
152B

MD5
f2f331e46655ae4317572d33d9035a93

SHA1
ab26a3df3d12dd33bcca5f372bf8540d270641e0

SHA256
1fb1b054d9276811b4219769711eff0905e36930d2614bbfa7b8fb6b5a41c5c4

SHA512
993dd62b23f4346547fec43f96c5fc6dff49eeabd62d5b00f91f52dee6c723d4cc33a9ebedf69a34314a6726d020433ad53892c01131d126327ad73a6b1256c4

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\Programs.exe

Filesize
74KB

MD5
652d8971b1de9ac91d9dc53150a83a6f

SHA1
f58b1ba78665d08a52d355ba626fa8d2a72d8f19

SHA256
df6a38e3658e607ca005881650480cb7485dce3fa1d9480a25b8858c17bcc509

SHA512
4047192ec25582eca08e58b316694135054ba41de91df1d914f9565acc773b9bde7d0a426d70a878a7ea13720707fe462f73ad5fcd829322cd5edc312f3ae7d4

Download Submit
memory/2304-0-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

Filesize
4KB

Download
memory/2304-1-0x0000000000E90000-0x0000000000EA8000-memory.dmp

Filesize
96KB

Download
memory/2304-3-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2304-12-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2304-14-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2900-18-0x00000000001F0000-0x0000000000208000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads