asyncrat | 0c7e0d137c2972c95d20984a8f7501fc325f5170c041f90b953aba99b05dc3f2

General

Target

028fe87e5497f4e26bbe39c176471fff.exe
Size

47KB
MD5

028fe87e5497f4e26bbe39c176471fff
SHA1

8fca7c8fe892025a88877b4a792c818c1b1577b6
SHA256

0c7e0d137c2972c95d20984a8f7501fc325f5170c041f90b953aba99b05dc3f2
SHA512

c275270e803bd39e704568026f0777dc501b7728a0994ae1fcb7a6a9db87b2c30bf584d3cec317a5a4d597f9d19760591cfda5dbd4783a603b436a1b5b59e100

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

null:null

Mutex

Mutex_6SI8OkPnk

Attributes

aes_key
DscMhyDczTKORwloBJ1epU7bQBuEDRpB
anti_detection
false
autorun
true
bdos
true
delay
Default
host
null
hwid
5
install_file
install_folder
%AppData%
mutex
Mutex_6SI8OkPnk
pastebin_config
https://pastebin.com/raw/ZPLzEGMr
port
null
version
0.5.7B

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
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

3452 svchost.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
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

2080 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2236 timeout.exe

pid	process
3452	svchost.exe

pid	process
2080	schtasks.exe

pid	process
2236	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

028fe87e5497f4e26bbe39c176471fff.exe

pid	process
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe
636	028fe87e5497f4e26bbe39c176471fff.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

028fe87e5497f4e26bbe39c176471fff.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	636	028fe87e5497f4e26bbe39c176471fff.exe
Token: SeDebugPrivilege	3452	svchost.exe
Token: SeDebugPrivilege	3452	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

028fe87e5497f4e26bbe39c176471fff.execmd.execmd.exe

description	pid	process	target process
PID 636 wrote to memory of 1448	636	028fe87e5497f4e26bbe39c176471fff.exe	cmd.exe
PID 636 wrote to memory of 1448	636	028fe87e5497f4e26bbe39c176471fff.exe	cmd.exe
PID 636 wrote to memory of 1448	636	028fe87e5497f4e26bbe39c176471fff.exe	cmd.exe
PID 636 wrote to memory of 3460	636	028fe87e5497f4e26bbe39c176471fff.exe	cmd.exe
PID 636 wrote to memory of 3460	636	028fe87e5497f4e26bbe39c176471fff.exe	cmd.exe
PID 636 wrote to memory of 3460	636	028fe87e5497f4e26bbe39c176471fff.exe	cmd.exe
PID 1448 wrote to memory of 2080	1448	cmd.exe	schtasks.exe
PID 1448 wrote to memory of 2080	1448	cmd.exe	schtasks.exe
PID 1448 wrote to memory of 2080	1448	cmd.exe	schtasks.exe
PID 3460 wrote to memory of 2236	3460	cmd.exe	timeout.exe
PID 3460 wrote to memory of 2236	3460	cmd.exe	timeout.exe
PID 3460 wrote to memory of 2236	3460	cmd.exe	timeout.exe
PID 3460 wrote to memory of 3452	3460	cmd.exe	svchost.exe
PID 3460 wrote to memory of 3452	3460	cmd.exe	svchost.exe
PID 3460 wrote to memory of 3452	3460	cmd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\028fe87e5497f4e26bbe39c176471fff.exe
"C:\Users\Admin\AppData\Local\Temp\028fe87e5497f4e26bbe39c176471fff.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:636

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1448

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:2080

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9B2C.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:3460

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2236

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3452

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9B2C.tmp.bat
MD5
bfdebdd9a212a68544dd107edd589334

SHA1
c0a515e25c53feeda038f8dabf2ed15c44f99758

SHA256
15d7e68d9426e972d535211375d06f49128cd466943ac7db3527af0c384e6ead

SHA512
d044676846939c948aa148c3cf5aa4d5b4f75ef1d1846377ebd56b15ca8e261e31952bdf7b62a25d5ee465f2f1d0977aa40e8e1c478bbe93748eea1ab54810aa

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
MD5
028fe87e5497f4e26bbe39c176471fff

SHA1
8fca7c8fe892025a88877b4a792c818c1b1577b6

SHA256
0c7e0d137c2972c95d20984a8f7501fc325f5170c041f90b953aba99b05dc3f2

SHA512
c275270e803bd39e704568026f0777dc501b7728a0994ae1fcb7a6a9db87b2c30bf584d3cec317a5a4d597f9d19760591cfda5dbd4783a603b436a1b5b59e100

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
MD5
028fe87e5497f4e26bbe39c176471fff

SHA1
8fca7c8fe892025a88877b4a792c818c1b1577b6

SHA256
0c7e0d137c2972c95d20984a8f7501fc325f5170c041f90b953aba99b05dc3f2

SHA512
c275270e803bd39e704568026f0777dc501b7728a0994ae1fcb7a6a9db87b2c30bf584d3cec317a5a4d597f9d19760591cfda5dbd4783a603b436a1b5b59e100

Download Submit
memory/636-116-0x00000000056C0000-0x00000000056C1000-memory.dmp

Filesize
4KB

Download
memory/636-117-0x0000000005770000-0x0000000005771000-memory.dmp

Filesize
4KB

Download
memory/636-114-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

Filesize
4KB

Download
memory/1448-118-0x0000000000000000-mapping.dmp

Download
memory/2080-121-0x0000000000000000-mapping.dmp

Download
memory/2236-122-0x0000000000000000-mapping.dmp

Download
memory/3452-123-0x0000000000000000-mapping.dmp

Download
memory/3452-128-0x0000000005601000-0x0000000005602000-memory.dmp

Filesize
4KB

Download
memory/3452-130-0x0000000006800000-0x0000000006801000-memory.dmp

Filesize
4KB

Download
memory/3452-131-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/3460-119-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads