asyncrat | e079b3ba7c32c3c605ed795d257dad51fea2bb2c463cb04a2fb41f99ed7898bb

General

Target

E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe
Size

852KB
MD5

5f76c9bd05993fdf6bd65c3fef5155fc
SHA1

e9d93be03d0acbb25c5eb94303bd260403ec673e
SHA256

e079b3ba7c32c3c605ed795d257dad51fea2bb2c463cb04a2fb41f99ed7898bb
SHA512

b258b402bf23dc0b8b35cd8364466993b694ae91c58f52095602eff5716e3bbe9fc86fcca0028b2474f1cf414a61c91c0ea0bac0ea1e047ce5932a7edd68d348

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

milla.publicvm.com:6606

milla.publicvm.com:7707

milla.publicvm.com:8808

Mutex

bdeyjxzfhfrvuzdyrin

Attributes

anti_vm
false
bsod
false
delay
1
install
true
install_file
firefoxa.exe
install_folder
%AppData%
pastebin_config
null

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/760-55-0x0000000000500000-0x0000000000512000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

firefoxa.exe

pid process

1448 firefoxa.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

892 cmd.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

1644 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1384 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe

pid process

760 E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe
760 E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exefirefoxa.exe

description pid process

Token: SeDebugPrivilege 760 E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe
Token: SeDebugPrivilege 1448 firefoxa.exe

pid	process
1448	firefoxa.exe

pid	process
892	cmd.exe

pid	process
1644	schtasks.exe

pid	process
1384	timeout.exe

pid	process
760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe
760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe

description	pid	process
Token: SeDebugPrivilege	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe
Token: SeDebugPrivilege	1448	firefoxa.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.execmd.execmd.exe

description	pid	process	target process
PID 760 wrote to memory of 472	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 760 wrote to memory of 472	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 760 wrote to memory of 472	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 760 wrote to memory of 472	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 760 wrote to memory of 892	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 760 wrote to memory of 892	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 760 wrote to memory of 892	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 760 wrote to memory of 892	760	E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe	cmd.exe
PID 472 wrote to memory of 1644	472	cmd.exe	schtasks.exe
PID 472 wrote to memory of 1644	472	cmd.exe	schtasks.exe
PID 472 wrote to memory of 1644	472	cmd.exe	schtasks.exe
PID 472 wrote to memory of 1644	472	cmd.exe	schtasks.exe
PID 892 wrote to memory of 1384	892	cmd.exe	timeout.exe
PID 892 wrote to memory of 1384	892	cmd.exe	timeout.exe
PID 892 wrote to memory of 1384	892	cmd.exe	timeout.exe
PID 892 wrote to memory of 1384	892	cmd.exe	timeout.exe
PID 892 wrote to memory of 1448	892	cmd.exe	firefoxa.exe
PID 892 wrote to memory of 1448	892	cmd.exe	firefoxa.exe
PID 892 wrote to memory of 1448	892	cmd.exe	firefoxa.exe
PID 892 wrote to memory of 1448	892	cmd.exe	firefoxa.exe

C:\Users\Admin\AppData\Local\Temp\E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe
"C:\Users\Admin\AppData\Local\Temp\E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:760

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB /tr '"C:\Users\Admin\AppData\Roaming\firefoxa.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:472

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /ru system /rl highest /tn E079B3BA7C32C3C605ED795D257DAD51FEA2BB2C463CB /tr '"C:\Users\Admin\AppData\Roaming\firefoxa.exe"'
3⤵
- Creates scheduled task(s)
PID:1644

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp147A.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:892

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1384

C:\Users\Admin\AppData\Roaming\firefoxa.exe
"C:\Users\Admin\AppData\Roaming\firefoxa.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1448

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

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp147A.tmp.bat
MD5
1f1635835142bb9c79869d99c3e70c1f

SHA1
285ac94d611a953eb048d235d53d15bb567e2226

SHA256
8acc156c12d1b5f77b5f7e7d2a9b4524b0d34add833d4221e625e52e4f85dc1d

SHA512
cc956ab6d0ffe0fe708062282bef8182da3d71cc8041544200c125226ae012aca9a3cbc4e8f6000dde02868674f408ac757fd740bfefdf1fa66587c162007fdc

Download Submit
C:\Users\Admin\AppData\Roaming\firefoxa.exe
MD5
5f76c9bd05993fdf6bd65c3fef5155fc

SHA1
e9d93be03d0acbb25c5eb94303bd260403ec673e

SHA256
e079b3ba7c32c3c605ed795d257dad51fea2bb2c463cb04a2fb41f99ed7898bb

SHA512
b258b402bf23dc0b8b35cd8364466993b694ae91c58f52095602eff5716e3bbe9fc86fcca0028b2474f1cf414a61c91c0ea0bac0ea1e047ce5932a7edd68d348

Download Submit
C:\Users\Admin\AppData\Roaming\firefoxa.exe
MD5
5f76c9bd05993fdf6bd65c3fef5155fc

SHA1
e9d93be03d0acbb25c5eb94303bd260403ec673e

SHA256
e079b3ba7c32c3c605ed795d257dad51fea2bb2c463cb04a2fb41f99ed7898bb

SHA512
b258b402bf23dc0b8b35cd8364466993b694ae91c58f52095602eff5716e3bbe9fc86fcca0028b2474f1cf414a61c91c0ea0bac0ea1e047ce5932a7edd68d348

Download Submit
\Users\Admin\AppData\Roaming\firefoxa.exe
MD5
5f76c9bd05993fdf6bd65c3fef5155fc

SHA1
e9d93be03d0acbb25c5eb94303bd260403ec673e

SHA256
e079b3ba7c32c3c605ed795d257dad51fea2bb2c463cb04a2fb41f99ed7898bb

SHA512
b258b402bf23dc0b8b35cd8364466993b694ae91c58f52095602eff5716e3bbe9fc86fcca0028b2474f1cf414a61c91c0ea0bac0ea1e047ce5932a7edd68d348

Download Submit
memory/760-53-0x00000000000B0000-0x000000000018A000-memory.dmp

Filesize
872KB

Download
memory/760-54-0x0000000004C30000-0x0000000004C31000-memory.dmp

Filesize
4KB

Download
memory/760-55-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download
memory/760-56-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1448-61-0x0000000001220000-0x00000000012FA000-memory.dmp

Filesize
872KB

Download
memory/1448-62-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads