asyncrat | 45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472

General

Target

45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe
Size

74KB
MD5

c23fb41bf1291c1dfd46b2dc66119476
SHA1

33eb3a59f857c53be69a8f555efabf643784ad11
SHA256

45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472
SHA512

7fe45ab30263be55b7fec83557a8f80534fb28ab6274cba721ac4b8ca5dcc9c47bc43ef0c726966f2aa438d00adff85da5cae09fcbd1e687c77ae345f5c2bd3a
SSDEEP

1536:5UNQcx6ZoCrGPMVU+/sIRH1bJ/SOlgNQzcyLVclNP:5Uicx6qQGPMVU+/PH1bJbl8QjBYt

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:1177

127.0.0.1:21053

187.18.72.113:1177

187.18.72.113:21053

189.14.62.242:1177

189.14.62.242:21053

192.168.1.6:1177

192.168.1.6:21053

210.53.210.53:1177

210.53.210.53:21053

10.9.237.62:1177

10.9.237.62:21053

Mutex

aewfcdorqvoec

Attributes

delay
1
install
true
install_file
start.exe
install_folder
%Temp%

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

resource	yara_rule
behavioral1/memory/2504-1-0x0000000001290000-0x00000000012A8000-memory.dmp	VenomRAT
behavioral1/files/0x0009000000016814-16.dat	VenomRAT
behavioral1/memory/2964-18-0x0000000000C10000-0x0000000000C28000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0009000000016814-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2964	start.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
2752	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
2808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe
2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe
2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe
2964	start.exe
2964	start.exe
2964	start.exe
2964	start.exe
2964	start.exe
2964	start.exe
2964	start.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe
Token: SeDebugPrivilege	2964	start.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2964	start.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 1240	2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe	30
PID 2504 wrote to memory of 1240	2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe	30
PID 2504 wrote to memory of 1240	2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe	30
PID 2504 wrote to memory of 1724	2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe	31
PID 2504 wrote to memory of 1724	2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe	31
PID 2504 wrote to memory of 1724	2504	45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe	31
PID 1724 wrote to memory of 2752	1724	cmd.exe	34
PID 1724 wrote to memory of 2752	1724	cmd.exe	34
PID 1724 wrote to memory of 2752	1724	cmd.exe	34
PID 1240 wrote to memory of 2808	1240	cmd.exe	35
PID 1240 wrote to memory of 2808	1240	cmd.exe	35
PID 1240 wrote to memory of 2808	1240	cmd.exe	35
PID 1724 wrote to memory of 2964	1724	cmd.exe	36
PID 1724 wrote to memory of 2964	1724	cmd.exe	36
PID 1724 wrote to memory of 2964	1724	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\45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe
"C:\Users\Admin\AppData\Local\Temp\45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "start" /tr '"C:\Users\Admin\AppData\Local\Temp\start.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1240
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "start" /tr '"C:\Users\Admin\AppData\Local\Temp\start.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2808
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpA43B.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2752
- - C:\Users\Admin\AppData\Local\Temp\start.exe
    "C:\Users\Admin\AppData\Local\Temp\start.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2964

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\start.exe

Filesize
74KB

MD5
c23fb41bf1291c1dfd46b2dc66119476

SHA1
33eb3a59f857c53be69a8f555efabf643784ad11

SHA256
45a80ba3066dcff272b2fdc8d539a49e28ad5a7404fbdeabdd19a85875fc3472

SHA512
7fe45ab30263be55b7fec83557a8f80534fb28ab6274cba721ac4b8ca5dcc9c47bc43ef0c726966f2aa438d00adff85da5cae09fcbd1e687c77ae345f5c2bd3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA43B.tmp.bat

Filesize
152B

MD5
0a2cbb7519932b00132546605be11d53

SHA1
87d88ef423fc1c09341f39facf22362adf018ce4

SHA256
50d8b718b8b60c8f6b2c60a24bef70f31174bd895d0127141b33fbde4e915043

SHA512
7e9dea976a917980e35bdf942308e83a32a266755b15cccbf1d344e42b35e2488a2962a4d9dc56e16f2b19cbae66b15907021d52ff07155f30f4837f6cbbfaa1

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

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/2504-0-0x000007FEF5983000-0x000007FEF5984000-memory.dmp

Filesize
4KB

Download
memory/2504-1-0x0000000001290000-0x00000000012A8000-memory.dmp

Filesize
96KB

Download
memory/2504-3-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

Filesize
9.9MB

Download
memory/2504-11-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

Filesize
9.9MB

Download
memory/2504-14-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

Filesize
9.9MB

Download
memory/2964-18-0x0000000000C10000-0x0000000000C28000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads