asyncrat | 43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a

General

Target

43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe
Size

74KB
MD5

0008fd682c80c65d9f99277154e00bf9
SHA1

a21357a66bd5915931e5c1a65ad0a605454e7759
SHA256

43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a
SHA512

947d5cfc4936cd345448d069bf865d292b77179e1c4170435944c9b2768bff4c2d9dfc745e272bd3840e6cf4d9635341e92d99a65c99927a80a6999d850c8e37
SSDEEP

1536:eUd8cxMcpCn6PMVuiPnJgIaH1bo/RknQQzcaLVclN:eUecxMmw6PMVBPWH1boJ5QLBY

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

194.33.191.195:4449

194.33.191.195:1111

Mutex

jewyelnhipabvhojbdh

Attributes

delay
1
install
true
install_file
venom.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/1712-1-0x0000000000980000-0x0000000000998000-memory.dmp	VenomRAT
C:\Users\Admin\AppData\Roaming\venom.exe	VenomRAT
behavioral1/memory/2924-18-0x00000000012A0000-0x00000000012B8000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

venom.exe

pid process

2924 venom.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

2064 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

2740 schtasks.exe

pid	process
2924	venom.exe

pid	process
2064	timeout.exe

pid	process
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exevenom.exe

pid	process
1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe
1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe
1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe
2924	venom.exe
2924	venom.exe
2924	venom.exe
2924	venom.exe
2924	venom.exe
2924	venom.exe
2924	venom.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exevenom.exe

description	pid	process
Token: SeDebugPrivilege	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe
Token: SeDebugPrivilege	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe
Token: SeDebugPrivilege	2924	venom.exe
Token: SeDebugPrivilege	2924	venom.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

venom.exe

pid process

2924 venom.exe

pid	process
2924	venom.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.execmd.execmd.exe

description	pid	process	target process
PID 1712 wrote to memory of 1808	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe	cmd.exe
PID 1712 wrote to memory of 1808	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe	cmd.exe
PID 1712 wrote to memory of 1808	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe	cmd.exe
PID 1712 wrote to memory of 2964	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe	cmd.exe
PID 1712 wrote to memory of 2964	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe	cmd.exe
PID 1712 wrote to memory of 2964	1712	43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe	cmd.exe
PID 1808 wrote to memory of 2740	1808	cmd.exe	schtasks.exe
PID 1808 wrote to memory of 2740	1808	cmd.exe	schtasks.exe
PID 1808 wrote to memory of 2740	1808	cmd.exe	schtasks.exe
PID 2964 wrote to memory of 2064	2964	cmd.exe	timeout.exe
PID 2964 wrote to memory of 2064	2964	cmd.exe	timeout.exe
PID 2964 wrote to memory of 2064	2964	cmd.exe	timeout.exe
PID 2964 wrote to memory of 2924	2964	cmd.exe	venom.exe
PID 2964 wrote to memory of 2924	2964	cmd.exe	venom.exe
PID 2964 wrote to memory of 2924	2964	cmd.exe	venom.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\43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe
"C:\Users\Admin\AppData\Local\Temp\43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "venom" /tr '"C:\Users\Admin\AppData\Roaming\venom.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "venom" /tr '"C:\Users\Admin\AppData\Roaming\venom.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2740
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp9B65.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2064
- - C:\Users\Admin\AppData\Roaming\venom.exe
    "C:\Users\Admin\AppData\Roaming\venom.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2924

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\tmp9B65.tmp.bat

Filesize
149B

MD5
d008352ab3f54f2a9e7703db3f38db23

SHA1
b885e2c01b5e36ac4fc058cd0bbb6ecd2a740108

SHA256
6cbdcd0e5fb0a4af3413f0c6801e9bd01439d88ffee116aaf597db3db13b0344

SHA512
4363f7884bc4be21743c869365cd2286d0fa766fa2a18e055d8d42611bd986cabe34617a735e41bfa6c0f3d2d7fd3ddb995cec64b9293ca0c0c6e818b4beb73c

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\venom.exe

Filesize
74KB

MD5
0008fd682c80c65d9f99277154e00bf9

SHA1
a21357a66bd5915931e5c1a65ad0a605454e7759

SHA256
43032bf6462bedc318dc507142ebdded51fbf6ea383c3afc5c02ed3bb246e89a

SHA512
947d5cfc4936cd345448d069bf865d292b77179e1c4170435944c9b2768bff4c2d9dfc745e272bd3840e6cf4d9635341e92d99a65c99927a80a6999d850c8e37

Download Submit
memory/1712-0-0x000007FEF5383000-0x000007FEF5384000-memory.dmp

Filesize
4KB

Download
memory/1712-1-0x0000000000980000-0x0000000000998000-memory.dmp

Filesize
96KB

Download
memory/1712-3-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/1712-12-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/1712-14-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/2924-18-0x00000000012A0000-0x00000000012B8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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