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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1528-13-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/1528-14-0x000000000040C62E-mapping.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

CONTRACT_87908.exe

description pid process target process

PID 672 set thread context of 1528 672 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

2252 schtasks.exe

description	pid	process	target process
PID 672 set thread context of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe

pid	process
2252	schtasks.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

CONTRACT_87908.exe

description	pid	process	target process
PID 672 wrote to memory of 2252	672	CONTRACT_87908.exe	schtasks.exe
PID 672 wrote to memory of 2252	672	CONTRACT_87908.exe	schtasks.exe
PID 672 wrote to memory of 2252	672	CONTRACT_87908.exe	schtasks.exe
PID 672 wrote to memory of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 672 wrote to memory of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 672 wrote to memory of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 672 wrote to memory of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 672 wrote to memory of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 672 wrote to memory of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 672 wrote to memory of 1528	672	CONTRACT_87908.exe	CONTRACT_87908.exe
PID 672 wrote to memory of 1528	672	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:672

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmJrjp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F9E.tmp"
2⤵
- Creates scheduled task(s)
PID:2252

C:\Users\Admin\AppData\Local\Temp\CONTRACT_87908.exe
"C:\Users\Admin\AppData\Local\Temp\CONTRACT_87908.exe"
2⤵
PID:1528

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\Microsoft\CLR_v4.0_32\UsageLogs\CONTRACT_87908.exe.log
MD5
c3cc52ccca9ff2b6fa8d267fc350ca6b

SHA1
a68d4028333296d222e4afd75dea36fdc98d05f3

SHA256
3125b6071e2d78f575a06ed7ac32a83d9262ae64d1fa81ac43e8bfc1ef157c0e

SHA512
b0c7b2501b1a2c559795a9d178c0bbda0e03cbdbaaa2c4330ac1202a55373fe1b742078adcfa915bd6e805565a2daa6d35d64ef7a14ffcd09069f9ea6a691cc7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8F9E.tmp
MD5
262310dce417c8ba8b6287256b4335be

SHA1
9ac82ac76aee030fad2a250977d1f5b6b4815e87

SHA256
4275c719dbb75a0880930b9617f85f378a57211b91073da00a4aa1066941b6ca

SHA512
d0ebd1b287b6a187997405ef19f7ca8f78786937726591e4edb504d880c5c6981443f912d77ab41851411eda68a61b074afdfb1a69f55b99147f0bb1532c62ff

Download Submit
memory/672-6-0x0000000004990000-0x0000000004991000-memory.dmp

Filesize
4KB

Download
memory/672-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/672-7-0x0000000004A30000-0x0000000004A31000-memory.dmp

Filesize
4KB

Download
memory/672-8-0x0000000004950000-0x0000000004951000-memory.dmp

Filesize
4KB

Download
memory/672-9-0x0000000004960000-0x0000000004972000-memory.dmp

Filesize
72KB

Download
memory/672-10-0x0000000005630000-0x0000000005679000-memory.dmp

Filesize
292KB

Download
memory/672-5-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/672-3-0x0000000000040000-0x0000000000041000-memory.dmp

Filesize
4KB

Download
memory/1528-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1528-14-0x000000000040C62E-mapping.dmp

Download
memory/1528-16-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2252-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads