asyncrat | 3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
04-07-2024 01:19

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe
Size

2.6MB
MD5

f752dec00ecccadadfbd35c32ae16bf5
SHA1

464748d9b42ebe463c6da73b1836517442694e26
SHA256

3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58
SHA512

bcec21635021cbad0ca4be0ae00cd23ff50f03204504e3c039c288674ee75cde7b95bb203714f42c355d1b3c43b006ae5c4c34dd27c65511d22c00790155b9f0
SSDEEP

12288:uRIzYTTBKteXpbUGbLoneSXepXrsM975Cogg8KZ:uRI89la4bCoUKZ

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

betterdays4me.duckdns.org:6606

betterdays4me.duckdns.org:7707

betterdays4me.duckdns.org:8808

Mutex

fULNLY9PC39i

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Suspicious use of SetThreadContext 1 IoCs

Processes:

3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe

description pid process target process

PID 2204 set thread context of 1236 2204 3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe CasPol.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe

description pid process

Token: SeDebugPrivilege 2204 3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe

description	pid	process	target process
PID 2204 set thread context of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe

description	pid	process
Token: SeDebugPrivilege	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe

description	pid	process	target process
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1236	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	CasPol.exe
PID 2204 wrote to memory of 1408	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	WerFault.exe
PID 2204 wrote to memory of 1408	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	WerFault.exe
PID 2204 wrote to memory of 1408	2204	3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe
"C:\Users\Admin\AppData\Local\Temp\3677d4f5c9958bfaaa37b3a49f3ab3b70d78e40c717280c3add5df4442c8fc58.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2204

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
PID:1236

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2204 -s 616
2⤵
PID:1408

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1236-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1236-15-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/1236-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1236-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1236-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1236-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1236-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1236-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1236-19-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/1236-16-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/1236-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2204-3-0x0000000000A70000-0x0000000000AD4000-memory.dmp

Filesize
400KB

Download
memory/2204-0-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

Filesize
4KB

Download
memory/2204-1-0x0000000001150000-0x0000000001176000-memory.dmp

Filesize
152KB

Download
memory/2204-2-0x000000001B0F0000-0x000000001B116000-memory.dmp

Filesize
152KB

Download
memory/2204-17-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

Filesize
4KB

Download
memory/2204-18-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2204-4-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download