asyncrat | 8b3bcce39aee0df9fc37b2f009ecc2e9c570c665f632c576f7ae8c2f32a87a1d

General

Target

CONTRACT_87908.exe
Size

842KB
MD5

044be31c4ec02f25b5627cf889d581d6
SHA1

caba9cc3c77d49aa4f2f2f3bb3b6b779dd7ad1b1
SHA256

8b3bcce39aee0df9fc37b2f009ecc2e9c570c665f632c576f7ae8c2f32a87a1d
SHA512

13e8542241251a9886f91c8d429bcc49394719395092ab42c243f2a9f6a32a520fda529f2ac91371aeec320b84403429e399b00131541284f0fdcef9d2c0af6a

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

C2

91.193.75.182:8808

:8808

Mutex

iqtkuvwaczxdagzqzrf

Attributes

aes_key
MtZYMqjMdClo4OGaE86hJg0xTpxOqdzU
anti_detection
false
autorun
false
bdos
false
delay
TLVAudio
host
91.193.75.182,
hwid
1
install_file
install_folder
%AppData%
mutex
iqtkuvwaczxdagzqzrf
pastebin_config
null
port
8808
version
0.5.6D

aes.plain

Signatures

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

Async RAT payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/316-9-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/316-10-0x000000000040C62E-mapping.dmp	asyncrat
behavioral1/memory/316-11-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/316-12-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

CONTRACT_87908.exe

description pid process target process

PID 1644 set thread context of 316 1644 CONTRACT_87908.exe CONTRACT_87908.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1404 schtasks.exe

description	pid	process	target process
PID 1644 set thread context of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe

pid	process
1404	schtasks.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

CONTRACT_87908.exe

description	pid	process	target process
PID 1644 wrote to memory of 1404	1644	CONTRACT_87908.exe	schtasks.exe
PID 1644 wrote to memory of 1404	1644	CONTRACT_87908.exe	schtasks.exe
PID 1644 wrote to memory of 1404	1644	CONTRACT_87908.exe	schtasks.exe
PID 1644 wrote to memory of 1404	1644	CONTRACT_87908.exe	schtasks.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 1644 wrote to memory of 316	1644	CONTRACT_87908.exe	CONTRACT_87908.exe

C:\Users\Admin\AppData\Local\Temp\CONTRACT_87908.exe
"C:\Users\Admin\AppData\Local\Temp\CONTRACT_87908.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1644

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmJrjp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE540.tmp"
2⤵
- Creates scheduled task(s)
PID:1404

C:\Users\Admin\AppData\Local\Temp\CONTRACT_87908.exe
"C:\Users\Admin\AppData\Local\Temp\CONTRACT_87908.exe"
2⤵
PID:316

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE540.tmp
MD5
e5e267e3b78c80aec4789cfd0a74d6fc

SHA1
5813791de575d2079a02289e70217d87136705fd

SHA256
6446930865911b48b2383b2b792d644f94e09017885430ee445164702d355098

SHA512
25f25d56644aba02864e8928994c2278efc6abc21e545ecaf271532c4d175c96d251fb8a5098fe7b59667296acdee282caef3cb31377e7836f6f36bf4828b7be

Download Submit
memory/316-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/316-10-0x000000000040C62E-mapping.dmp

Download
memory/316-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/316-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/316-13-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/1404-7-0x0000000000000000-mapping.dmp

Download
memory/1644-2-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/1644-3-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/1644-5-0x00000000002D0000-0x00000000002E2000-memory.dmp

Filesize
72KB

Download
memory/1644-6-0x0000000002270000-0x00000000022B9000-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads