asyncrat | 8af464b25a755b34454ae214f93eb6a8a52fad7a2a4723e54dfe626b4569e7b6

General

Target

Clienting.exe
Size

74KB
MD5

5f387f75d454bb6db247cfc0c3103490
SHA1

bb901172f2d9b18f014840053dfc23a069d56b2d
SHA256

8af464b25a755b34454ae214f93eb6a8a52fad7a2a4723e54dfe626b4569e7b6
SHA512

e457abcda5d91b0d718444f6b867974d6a6e84717fc0bec8dadc798f3a1b293c561b5638f1411463323076e68870c8ffee1fe3e4c1760d2938f4045859ae009b
SSDEEP

1536:+hUZAcxjVLcoCJPPMVw9emoQIjH1bfsLJ0CAYpQzcKLVclN:2UWcxjVLLCPPMVme1pH1bfAxpQ7BY

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

88.173.32.153:7000

Mutex

ljhpglxnumzm

Attributes

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

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

Test.exe

pid process

2660 Test.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

2820 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

2092 schtasks.exe
Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

Clienting.exeTest.exe

pid process

2372 Clienting.exe
2372 Clienting.exe
2372 Clienting.exe
2660 Test.exe
2660 Test.exe
2660 Test.exe
2660 Test.exe
2660 Test.exe
2660 Test.exe
2660 Test.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Clienting.exeTest.exe

description pid process

Token: SeDebugPrivilege 2372 Clienting.exe
Token: SeDebugPrivilege 2660 Test.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Test.exe

pid process

2660 Test.exe

pid	process
2660	Test.exe

pid	process
2820	timeout.exe

pid	process
2092	schtasks.exe

pid	process
2372	Clienting.exe
2372	Clienting.exe
2372	Clienting.exe
2660	Test.exe
2660	Test.exe
2660	Test.exe
2660	Test.exe
2660	Test.exe
2660	Test.exe
2660	Test.exe

description	pid	process
Token: SeDebugPrivilege	2372	Clienting.exe
Token: SeDebugPrivilege	2660	Test.exe

pid	process
2660	Test.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Clienting.execmd.execmd.exe

description	pid	process	target process
PID 2372 wrote to memory of 2804	2372	Clienting.exe	cmd.exe
PID 2372 wrote to memory of 2804	2372	Clienting.exe	cmd.exe
PID 2372 wrote to memory of 2804	2372	Clienting.exe	cmd.exe
PID 2372 wrote to memory of 2752	2372	Clienting.exe	cmd.exe
PID 2372 wrote to memory of 2752	2372	Clienting.exe	cmd.exe
PID 2372 wrote to memory of 2752	2372	Clienting.exe	cmd.exe
PID 2804 wrote to memory of 2092	2804	cmd.exe	schtasks.exe
PID 2804 wrote to memory of 2092	2804	cmd.exe	schtasks.exe
PID 2804 wrote to memory of 2092	2804	cmd.exe	schtasks.exe
PID 2752 wrote to memory of 2820	2752	cmd.exe	timeout.exe
PID 2752 wrote to memory of 2820	2752	cmd.exe	timeout.exe
PID 2752 wrote to memory of 2820	2752	cmd.exe	timeout.exe
PID 2752 wrote to memory of 2660	2752	cmd.exe	Test.exe
PID 2752 wrote to memory of 2660	2752	cmd.exe	Test.exe
PID 2752 wrote to memory of 2660	2752	cmd.exe	Test.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\Clienting.exe
"C:\Users\Admin\AppData\Local\Temp\Clienting.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2372

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Test" /tr '"C:\Users\Admin\AppData\Roaming\Test.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2804

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Test" /tr '"C:\Users\Admin\AppData\Roaming\Test.exe"'
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2092

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5E56.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:2752

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2820

C:\Users\Admin\AppData\Roaming\Test.exe
"C:\Users\Admin\AppData\Roaming\Test.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2660

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\tmp5E56.tmp.bat

Filesize
148B

MD5
c69aaafe0646c3d78e15cd382c958026

SHA1
c18d18e51bc0bce966cda4b21b24e94d95d7c1a6

SHA256
91f7b971b95c842e63fc0419acafd3b455edac781db786e614c29a87641bc060

SHA512
5a3308ea03580e0b143bf058adb6d1694b1e99325d9fa0df150a0cb88ff29a19610631d3236f31ca3889ca5b266cbd4aa962b7205a489cd4809ed7f7b23dd08f

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\Test.exe

Filesize
74KB

MD5
5f387f75d454bb6db247cfc0c3103490

SHA1
bb901172f2d9b18f014840053dfc23a069d56b2d

SHA256
8af464b25a755b34454ae214f93eb6a8a52fad7a2a4723e54dfe626b4569e7b6

SHA512
e457abcda5d91b0d718444f6b867974d6a6e84717fc0bec8dadc798f3a1b293c561b5638f1411463323076e68870c8ffee1fe3e4c1760d2938f4045859ae009b

Download Submit
memory/2372-0-0x000007FEF5DB3000-0x000007FEF5DB4000-memory.dmp

Filesize
4KB

Download
memory/2372-1-0x0000000000DE0000-0x0000000000DF8000-memory.dmp

Filesize
96KB

Download
memory/2372-3-0x000007FEF5DB0000-0x000007FEF679C000-memory.dmp

Filesize
9.9MB

Download
memory/2372-11-0x000007FEF5DB0000-0x000007FEF679C000-memory.dmp

Filesize
9.9MB

Download
memory/2372-13-0x000007FEF5DB0000-0x000007FEF679C000-memory.dmp

Filesize
9.9MB

Download
memory/2660-18-0x00000000012F0000-0x0000000001308000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads