asyncrat | d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa

Analysis

max time kernel
66s
max time network
151s
platform
windows10_x64
resource
win10-20220414-en
submitted
05-07-2022 12:55

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General

Target

d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
Size

502KB
MD5

36b5e3120ffe3468078cb5aa1a55a9da
SHA1

ea449fdeb6b5dc01c4f9cf503d2c7a5b66d5cc60
SHA256

d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa
SHA512

e7e730e6b74ee4c9eec154908c991c26a548bb35e31b0e8e3cabd2e7457470ec967903060ceb74ec2e3727a2db16c378b43cad9b27eabcafc5d4a3062de700a3

Score

10^/10

asyncrat default rat suricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

37.0.14.204:2022

37.0.14.204:2019

37.0.14.204:5631

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/5056-275-0x000000000040C71E-mapping.dmp	asyncrat
behavioral1/memory/5056-309-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

description	pid	process	target process
PID 1636 set thread context of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exed9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

pid	process
4436	powershell.exe
4436	powershell.exe
4436	powershell.exe
1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exed9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exed9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

description	pid	process
Token: SeDebugPrivilege	4436	powershell.exe
Token: SeDebugPrivilege	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
Token: SeDebugPrivilege	5056	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

description	pid	process	target process
PID 1636 wrote to memory of 4436	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	powershell.exe
PID 1636 wrote to memory of 4436	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	powershell.exe
PID 1636 wrote to memory of 4436	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	powershell.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
PID 1636 wrote to memory of 5056	1636	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe	d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe

C:\Users\Admin\AppData\Local\Temp\d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
"C:\Users\Admin\AppData\Local\Temp\d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4436

C:\Users\Admin\AppData\Local\Temp\d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
C:\Users\Admin\AppData\Local\Temp\d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:5056

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\d9837c768f392a3bb98836aedc39c89e1b0641f1b51949d744bfb1a128cb23aa.exe.log
Filesize
802B

MD5
7c585b0b7719c83add8cd7532e726618

SHA1
e024d3a098940f4f0583a687709fc9a10355cb9b

SHA256
c14a05781e41208c8575d96bd614a1f46c6fdde9521aeb3d128e107039bd1576

SHA512
a2b3ac015ad48bcbf7b9c8d8d8494566da9e32e5121045cdc6133d314f57832416203ac2aabf467efa0b5fe37e8c7525c8127abf747419c2f16de8406153e357

Download Submit
memory/1636-119-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-120-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-121-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-122-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-123-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-124-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-125-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-126-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-127-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-128-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-129-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-130-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-131-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-132-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-133-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-134-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-135-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-136-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-137-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-138-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-139-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-140-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-141-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-142-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-144-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-145-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-146-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-147-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-148-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-149-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-150-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-151-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-153-0x0000000000760000-0x00000000007E4000-memory.dmp

Filesize
528KB

Download
memory/1636-155-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-156-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-154-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-152-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-143-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-157-0x0000000005010000-0x0000000005076000-memory.dmp

Filesize
408KB

Download
memory/1636-158-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-160-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-161-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-159-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-162-0x0000000005080000-0x000000000510A000-memory.dmp

Filesize
552KB

Download
memory/1636-163-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-164-0x0000000005110000-0x000000000515C000-memory.dmp

Filesize
304KB

Download
memory/1636-165-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-166-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-167-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-168-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-169-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-170-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-171-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-172-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-173-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-174-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-175-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-176-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-177-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-178-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-179-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-180-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-181-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-182-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-183-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/1636-272-0x0000000005CE0000-0x0000000005D72000-memory.dmp

Filesize
584KB

Download
memory/4436-184-0x0000000000000000-mapping.dmp

Download
memory/4436-185-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/4436-186-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/4436-187-0x0000000077E60000-0x0000000077FEE000-memory.dmp

Filesize
1.6MB

Download
memory/4436-220-0x0000000004F30000-0x0000000004F66000-memory.dmp

Filesize
216KB

Download
memory/4436-225-0x0000000007770000-0x0000000007D98000-memory.dmp

Filesize
6.2MB

Download
memory/4436-244-0x0000000007670000-0x0000000007692000-memory.dmp

Filesize
136KB

Download
memory/4436-245-0x0000000007DA0000-0x0000000007E06000-memory.dmp

Filesize
408KB

Download
memory/4436-246-0x0000000008060000-0x00000000083B0000-memory.dmp

Filesize
3.3MB

Download
memory/4436-249-0x0000000007ED0000-0x0000000007EEC000-memory.dmp

Filesize
112KB

Download
memory/4436-250-0x0000000008990000-0x00000000089DB000-memory.dmp

Filesize
300KB

Download
memory/4436-254-0x0000000008690000-0x0000000008706000-memory.dmp

Filesize
472KB

Download
memory/4436-266-0x0000000009510000-0x000000000952A000-memory.dmp

Filesize
104KB

Download
memory/4436-265-0x0000000009F90000-0x000000000A608000-memory.dmp

Filesize
6.5MB

Download
memory/5056-275-0x000000000040C71E-mapping.dmp

Download
memory/5056-309-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/5056-352-0x0000000006210000-0x00000000062AC000-memory.dmp

Filesize
624KB

Download
memory/5056-353-0x00000000067B0000-0x0000000006CAE000-memory.dmp

Filesize
5.0MB

Download