asyncrat | ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d

Analysis

max time kernel
139s
max time network
154s
platform
windows10_x64
resource
win10-20220414-en
submitted
01-07-2022 00:51

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General

Target

ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
Size

45KB
MD5

8535ef83ad230663fb31734e0b64ed07
SHA1

e5ddf52ba32126319dad2324ad54878af656a10e
SHA256

ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d
SHA512

e351bbc61f39ef1700894f95e22c9d56780566dd5564a9e6f2943844542c12bc93cae8d459f95d0b97dcfd0f2ab26fa5ba710f8621f276be962ea96df2d53ce8

Score

10^/10

asyncrat default rat suricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

212.192.246.207:3162

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
explorer.exe
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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/3692-147-0x00000000000F0000-0x0000000000102000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\explorer.exe	asyncrat
C:\Users\Admin\AppData\Roaming\explorer.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

explorer.exe

pid process

3612 explorer.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

1392 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2448 timeout.exe

pid	process
3612	explorer.exe

pid	process
1392	schtasks.exe

pid	process
2448	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe

pid	process
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
Token: SeDebugPrivilege	3612	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.execmd.execmd.exe

description	pid	process	target process
PID 3692 wrote to memory of 4044	3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe	cmd.exe
PID 3692 wrote to memory of 4044	3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe	cmd.exe
PID 3692 wrote to memory of 4044	3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe	cmd.exe
PID 3692 wrote to memory of 1744	3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe	cmd.exe
PID 3692 wrote to memory of 1744	3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe	cmd.exe
PID 3692 wrote to memory of 1744	3692	ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe	cmd.exe
PID 4044 wrote to memory of 1392	4044	cmd.exe	schtasks.exe
PID 4044 wrote to memory of 1392	4044	cmd.exe	schtasks.exe
PID 4044 wrote to memory of 1392	4044	cmd.exe	schtasks.exe
PID 1744 wrote to memory of 2448	1744	cmd.exe	timeout.exe
PID 1744 wrote to memory of 2448	1744	cmd.exe	timeout.exe
PID 1744 wrote to memory of 2448	1744	cmd.exe	timeout.exe
PID 1744 wrote to memory of 3612	1744	cmd.exe	explorer.exe
PID 1744 wrote to memory of 3612	1744	cmd.exe	explorer.exe
PID 1744 wrote to memory of 3612	1744	cmd.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe
"C:\Users\Admin\AppData\Local\Temp\ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3692

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "explorer" /tr '"C:\Users\Admin\AppData\Roaming\explorer.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4044

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "explorer" /tr '"C:\Users\Admin\AppData\Roaming\explorer.exe"'
3⤵
- Creates scheduled task(s)
PID:1392

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9223.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2448

C:\Users\Admin\AppData\Roaming\explorer.exe
"C:\Users\Admin\AppData\Roaming\explorer.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3612

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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\Temp\tmp9223.tmp.bat
Filesize
152B

MD5
cbbcce201269b2f62e8341500afe3bfa

SHA1
13e3fb8f0dfec28a7b93e15534244fa2103a74d1

SHA256
ecf3a6f2f9f7ffc9256137987b00f490c267b96c895bbb88ab4fe26c5a5aab24

SHA512
1707d565635621242bf8f867b60c1c8561085548420d457ba9201bff420a3a4ba74ec1552d7df432cdb6dd6a13ddaf1503ede3951716fa87346d94ba958290a6

Download Submit
C:\Users\Admin\AppData\Roaming\explorer.exe
Filesize
45KB

MD5
8535ef83ad230663fb31734e0b64ed07

SHA1
e5ddf52ba32126319dad2324ad54878af656a10e

SHA256
ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d

SHA512
e351bbc61f39ef1700894f95e22c9d56780566dd5564a9e6f2943844542c12bc93cae8d459f95d0b97dcfd0f2ab26fa5ba710f8621f276be962ea96df2d53ce8

Download Submit
C:\Users\Admin\AppData\Roaming\explorer.exe
Filesize
45KB

MD5
8535ef83ad230663fb31734e0b64ed07

SHA1
e5ddf52ba32126319dad2324ad54878af656a10e

SHA256
ebfd966cbefbd0d281c4a40b74eea33e09c60df987a7cd9df57528438f9db14d

SHA512
e351bbc61f39ef1700894f95e22c9d56780566dd5564a9e6f2943844542c12bc93cae8d459f95d0b97dcfd0f2ab26fa5ba710f8621f276be962ea96df2d53ce8

Download Submit
memory/1392-189-0x0000000000000000-mapping.dmp

Download
memory/1744-180-0x0000000000000000-mapping.dmp

Download
memory/1744-181-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-182-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-183-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/2448-204-0x0000000000000000-mapping.dmp

Download
memory/3612-316-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/3612-315-0x0000000005C50000-0x000000000614E000-memory.dmp

Filesize
5.0MB

Download
memory/3612-239-0x0000000000000000-mapping.dmp

Download
memory/3692-149-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-154-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-125-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-126-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-127-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-128-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-129-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-130-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-131-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-132-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-133-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-134-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-135-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-136-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-137-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-138-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-139-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-140-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-141-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-142-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-143-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-144-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-145-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-146-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-147-0x00000000000F0000-0x0000000000102000-memory.dmp

Filesize
72KB

Download
memory/3692-148-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-123-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-150-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-151-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-152-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-153-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-124-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-155-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-156-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-157-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-158-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-159-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-160-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-162-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-161-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-163-0x0000000004C40000-0x0000000004CDC000-memory.dmp

Filesize
624KB

Download
memory/3692-164-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-165-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-166-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-167-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-168-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-169-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-170-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-171-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-172-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-173-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-174-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-122-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-121-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-120-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-119-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-118-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-117-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/3692-116-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/4044-175-0x0000000000000000-mapping.dmp

Download
memory/4044-176-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/4044-177-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/4044-179-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download
memory/4044-178-0x00000000770D0000-0x000000007725E000-memory.dmp

Filesize
1.6MB

Download