asyncrat | 6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601

General

Target

6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
Size

765KB
MD5

ff2641ce33fd64ca3bcdb8f95956ccfc
SHA1

a4b0b0b09d1952f49600fed2b82c15e8452c515d
SHA256

6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601
SHA512

49197ece1e9179326a833cb3a02d6dbfd0fda36dc09bd14a2fa794f735520ac58124626a481a64f4c0a6c733d3cf692f793aa857dffbe662eab9116dd3817038
SSDEEP

1536:oC/6GStcxcG+1SwGp7FUcETgrggggEE2vBgcrZ+HsaJ7FDwwoNGkNecQeRSHcp3z:

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

dhayan.ip-dynamic.com:6606

dhayan.ip-dynamic.com:7707

dhayan.ip-dynamic.com:8808

192.168.1.192:6606

192.168.1.192:7707

192.168.1.192:8808

Mutex

kfjgkmlkgf4g516d51fg54r1eg651fv65d1g65sda1g616g51f6g51rg89a7

Attributes

delay
3
install
false
install_file
tidore update crack.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe\""	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3208-136-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Drops startup file 2 IoCs

Processes:

6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe"	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe"	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

description	pid	process	target process
PID 4860 set thread context of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

description	pid	process	target process
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
PID 4860 wrote to memory of 3208	4860	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe	6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe

C:\Users\Admin\AppData\Local\Temp\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
"C:\Users\Admin\AppData\Local\Temp\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4860

C:\Users\Admin\AppData\Local\Temp\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe
"C:\Users\Admin\AppData\Local\Temp\6af98c9c6ad382f3dddff52c8de96e2f831d0dbb0f1ab0f9a9457ba58d538601.exe"
2⤵
PID:3208

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/3208-135-0x0000000000000000-mapping.dmp

Download
memory/3208-136-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4860-132-0x0000000000E20000-0x0000000000EE2000-memory.dmp

Filesize
776KB

Download
memory/4860-133-0x0000000005840000-0x00000000058DC000-memory.dmp

Filesize
624KB

Download
memory/4860-134-0x0000000005F90000-0x0000000006534000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads