asyncrat | c12d0924a3ff38fad8d7aa4fa9abeafd2dec07b452bd0d5d10af5f5b07f244e7

General

Target

testdenovo.exe
Size

74KB
MD5

4330642b1f3c75e376da876245138800
SHA1

72228b675c946ecbdefa9fc0938d04861b8acd89
SHA256

c12d0924a3ff38fad8d7aa4fa9abeafd2dec07b452bd0d5d10af5f5b07f244e7
SHA512

c892485efc7326ea02dfbc9ce6058289058f485ebfbdf0ea0507036690beb7c51a3e8cd5f06fa8343d69f69abccdf30f9d3882dc0133c34a22debcb31374d74d
SSDEEP

1536:5UNQcx6ZoCrGPMVU+/sIRH1bJ/SOlgNQzcyLVclN:5Uicx6qQGPMVU+/PH1bJbl8QjBY

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

Processes:

resource	yara_rule
behavioral1/memory/3060-1-0x00000000003A0000-0x00000000003B8000-memory.dmp	VenomRAT
behavioral1/files/0x0009000000016d58-16.dat	VenomRAT
behavioral1/memory/2692-18-0x00000000001F0000-0x0000000000208000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/files/0x0009000000016d58-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

start.exe

pid	Process
2692	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

Processes:

timeout.exe

pid	Process
2792	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
2744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

testdenovo.exestart.exe

pid	Process
3060	testdenovo.exe
3060	testdenovo.exe
3060	testdenovo.exe
2692	start.exe
2692	start.exe
2692	start.exe
2692	start.exe
2692	start.exe
2692	start.exe
2692	start.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

testdenovo.exestart.exe

description	pid	Process
Token: SeDebugPrivilege	3060	testdenovo.exe
Token: SeDebugPrivilege	2692	start.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

start.exe

pid	Process
2692	start.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

testdenovo.execmd.execmd.exe

description	pid	Process	procid_target
PID 3060 wrote to memory of 2616	3060	testdenovo.exe	31
PID 3060 wrote to memory of 2616	3060	testdenovo.exe	31
PID 3060 wrote to memory of 2616	3060	testdenovo.exe	31
PID 3060 wrote to memory of 2772	3060	testdenovo.exe	32
PID 3060 wrote to memory of 2772	3060	testdenovo.exe	32
PID 3060 wrote to memory of 2772	3060	testdenovo.exe	32
PID 2616 wrote to memory of 2744	2616	cmd.exe	35
PID 2616 wrote to memory of 2744	2616	cmd.exe	35
PID 2616 wrote to memory of 2744	2616	cmd.exe	35
PID 2772 wrote to memory of 2792	2772	cmd.exe	36
PID 2772 wrote to memory of 2792	2772	cmd.exe	36
PID 2772 wrote to memory of 2792	2772	cmd.exe	36
PID 2772 wrote to memory of 2692	2772	cmd.exe	37
PID 2772 wrote to memory of 2692	2772	cmd.exe	37
PID 2772 wrote to memory of 2692	2772	cmd.exe	37

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\testdenovo.exe
"C:\Users\Admin\AppData\Local\Temp\testdenovo.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- 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:2616
- - 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:2744
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpDD93.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2792
- - 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:2692

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
4330642b1f3c75e376da876245138800

SHA1
72228b675c946ecbdefa9fc0938d04861b8acd89

SHA256
c12d0924a3ff38fad8d7aa4fa9abeafd2dec07b452bd0d5d10af5f5b07f244e7

SHA512
c892485efc7326ea02dfbc9ce6058289058f485ebfbdf0ea0507036690beb7c51a3e8cd5f06fa8343d69f69abccdf30f9d3882dc0133c34a22debcb31374d74d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDD93.tmp.bat

Filesize
152B

MD5
f9a711407a49c71ee3837683d9cee797

SHA1
b4c5386744802c03109d7b65744d56e781fed1ae

SHA256
94ad7807459668f5c0b5a3c3e77a22c2c3ebc3c6c50e529dc47010c5cb003cd8

SHA512
e449e236677b2b52d0388a013da6c9e4b44727771c0d48d35f0afff9e645857f23aff2caebd1b2227001c1aa2cb1f36d191fd980600366311f571f768efa0e82

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

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/2692-18-0x00000000001F0000-0x0000000000208000-memory.dmp

Filesize
96KB

Download
memory/3060-0-0x000007FEF5873000-0x000007FEF5874000-memory.dmp

Filesize
4KB

Download
memory/3060-1-0x00000000003A0000-0x00000000003B8000-memory.dmp

Filesize
96KB

Download
memory/3060-3-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

Filesize
9.9MB

Download
memory/3060-11-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

Filesize
9.9MB

Download
memory/3060-13-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads