asyncrat | 7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48

General

Target

7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe
Size

73KB
MD5

2a2426c3a0fba674841a931c5a4d47a3
SHA1

8bb2bf45a4993677fda403f0901eb273f41f35ef
SHA256

7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48
SHA512

185933d3e285b47a45ada46e9abd2205d436a1f02499b8807b18842b79e247ec6345c42f89c2a02f552428ea1faa0c01dfa97dccb87488f33edbfb43e5dff387
SSDEEP

1536:u3U6AcxVVWc+pIedLMBqTE9qY26RkGPMwYGXN1tkUdDwH1bFbph4UawzU0bVclN:u3UjcxVVWc+GedLMBqTE9qY26CGPMwYC

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.2

Botnet

Default

C2

64.95.12.202:4449

Mutex

xslhfrfpycznyhafrt

Attributes

delay
1
install
true
install_file
client12.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

VenomRAT 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/2796-1-0x00000000010C0000-0x00000000010D8000-memory.dmp	VenomRAT
C:\Users\Admin\AppData\Roaming\client12.exe	VenomRAT
behavioral1/memory/2952-18-0x0000000000B70000-0x0000000000B88000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\client12.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

client12.exe

pid process

2952 client12.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

2728 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

3024 schtasks.exe

pid	process
2952	client12.exe

pid	process
2728	timeout.exe

pid	process
3024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.execlient12.exe

pid	process
2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe
2952	client12.exe
2952	client12.exe
2952	client12.exe
2952	client12.exe
2952	client12.exe
2952	client12.exe
2952	client12.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.execlient12.exe

description	pid	process
Token: SeDebugPrivilege	2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe
Token: SeDebugPrivilege	2952	client12.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

client12.exe

pid process

2952 client12.exe

pid	process
2952	client12.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.execmd.execmd.exe

description	pid	process	target process
PID 2796 wrote to memory of 2756	2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe	cmd.exe
PID 2796 wrote to memory of 2756	2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe	cmd.exe
PID 2796 wrote to memory of 2756	2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe	cmd.exe
PID 2796 wrote to memory of 2836	2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe	cmd.exe
PID 2796 wrote to memory of 2836	2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe	cmd.exe
PID 2796 wrote to memory of 2836	2796	7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe	cmd.exe
PID 2756 wrote to memory of 3024	2756	cmd.exe	schtasks.exe
PID 2756 wrote to memory of 3024	2756	cmd.exe	schtasks.exe
PID 2756 wrote to memory of 3024	2756	cmd.exe	schtasks.exe
PID 2836 wrote to memory of 2728	2836	cmd.exe	timeout.exe
PID 2836 wrote to memory of 2728	2836	cmd.exe	timeout.exe
PID 2836 wrote to memory of 2728	2836	cmd.exe	timeout.exe
PID 2836 wrote to memory of 2952	2836	cmd.exe	client12.exe
PID 2836 wrote to memory of 2952	2836	cmd.exe	client12.exe
PID 2836 wrote to memory of 2952	2836	cmd.exe	client12.exe

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\7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe
"C:\Users\Admin\AppData\Local\Temp\7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "client12" /tr '"C:\Users\Admin\AppData\Roaming\client12.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "client12" /tr '"C:\Users\Admin\AppData\Roaming\client12.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3024
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1767.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2728
- - C:\Users\Admin\AppData\Roaming\client12.exe
    "C:\Users\Admin\AppData\Roaming\client12.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2952

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\tmp1767.tmp.bat

Filesize
152B

MD5
fe886cdab3635439753cee55ae83301f

SHA1
6ea6053dc2a4b16939a77d6a4fce95dee5486cc1

SHA256
68b06667615d82addbd25cb219f4edb2bf2b5429faf55cfb9cb5cfce98130939

SHA512
6ca13d19b402cd28ee85c36b65355ee9d641bfd9e168c139a9ed33a6afba68f4f686bb41e89a9ea5245127f9b9635181883937541bafd834ffc9130f79b6e23f

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\client12.exe

Filesize
73KB

MD5
2a2426c3a0fba674841a931c5a4d47a3

SHA1
8bb2bf45a4993677fda403f0901eb273f41f35ef

SHA256
7057a51e8b7ab101a218a8cae24bfb4deca89ef5b16ab32388f883fc14701c48

SHA512
185933d3e285b47a45ada46e9abd2205d436a1f02499b8807b18842b79e247ec6345c42f89c2a02f552428ea1faa0c01dfa97dccb87488f33edbfb43e5dff387

Download Submit
memory/2796-0-0x000007FEF5643000-0x000007FEF5644000-memory.dmp

Filesize
4KB

Download
memory/2796-1-0x00000000010C0000-0x00000000010D8000-memory.dmp

Filesize
96KB

Download
memory/2796-3-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2796-12-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2796-14-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2952-18-0x0000000000B70000-0x0000000000B88000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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