asyncrat | 1590b1512142d6c974828fc11958a9a5ffdb6673a584b15fda7f93768f639a54

General

Target

1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe
Size

309KB
MD5

f4e3415d68ba7564f1400b74e4d7e22b
SHA1

a4a3b80c28db771c0b15c543daa56a229467fdf3
SHA256

1590b1512142d6c974828fc11958a9a5ffdb6673a584b15fda7f93768f639a54
SHA512

8c1a0d8db17301bdc6e2e3c16f953c1fd69ba76e887c797d64eb952155dc204a11b8f04181207cae7723aebddf638031e96225131a2006d07c43eb0555f207d7
SSDEEP

6144:h8u3J4+CQ6otk3BPuzoqANdyl6/5rLlj/T+/1aoaorg9v4EqP4EXPav0XXXXX3hM:0K1aoaCgR4HP4KPHXXXXX3hXXXXXX3Xs

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

urulyqqdpunjfhquxdy

Attributes

delay
8
install
true
install_file
folders.exe
install_folder
%AppData%

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
behavioral1/memory/1096-57-0x00000000003B0000-0x00000000003C2000-memory.dmp	asyncrat
behavioral1/memory/980-70-0x0000000000570000-0x0000000000582000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

folders.exe

pid process

980 folders.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exe

pid process

952 cmd.exe
952 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

1752 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1816 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe

pid process

1096 1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exefolders.exe

description pid process

Token: SeDebugPrivilege 1096 1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe
Token: SeDebugPrivilege 980 folders.exe

pid	process
980	folders.exe

pid	process
952	cmd.exe
952	cmd.exe

pid	process
1752	schtasks.exe

pid	process
1816	timeout.exe

pid	process
1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe

description	pid	process
Token: SeDebugPrivilege	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe
Token: SeDebugPrivilege	980	folders.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

1590B1512142D6C974828FC11958A9A5FFDB6673A584B.execmd.execmd.exe

description	pid	process	target process
PID 1096 wrote to memory of 800	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 1096 wrote to memory of 800	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 1096 wrote to memory of 800	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 1096 wrote to memory of 800	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 800 wrote to memory of 1752	800	cmd.exe	schtasks.exe
PID 800 wrote to memory of 1752	800	cmd.exe	schtasks.exe
PID 800 wrote to memory of 1752	800	cmd.exe	schtasks.exe
PID 800 wrote to memory of 1752	800	cmd.exe	schtasks.exe
PID 1096 wrote to memory of 952	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 1096 wrote to memory of 952	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 1096 wrote to memory of 952	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 1096 wrote to memory of 952	1096	1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe	cmd.exe
PID 952 wrote to memory of 1816	952	cmd.exe	timeout.exe
PID 952 wrote to memory of 1816	952	cmd.exe	timeout.exe
PID 952 wrote to memory of 1816	952	cmd.exe	timeout.exe
PID 952 wrote to memory of 1816	952	cmd.exe	timeout.exe
PID 952 wrote to memory of 980	952	cmd.exe	folders.exe
PID 952 wrote to memory of 980	952	cmd.exe	folders.exe
PID 952 wrote to memory of 980	952	cmd.exe	folders.exe
PID 952 wrote to memory of 980	952	cmd.exe	folders.exe

C:\Users\Admin\AppData\Local\Temp\1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe
"C:\Users\Admin\AppData\Local\Temp\1590B1512142D6C974828FC11958A9A5FFDB6673A584B.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 1590B1512142D6C974828FC11958A9A5FFDB6673A584B /tr '"C:\Users\Admin\AppData\Roaming\folders.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:800

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /ru system /rl highest /tn 1590B1512142D6C974828FC11958A9A5FFDB6673A584B /tr '"C:\Users\Admin\AppData\Roaming\folders.exe"'
3⤵
- Creates scheduled task(s)
PID:1752

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp81C.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:952

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1816

C:\Users\Admin\AppData\Roaming\folders.exe
"C:\Users\Admin\AppData\Roaming\folders.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:980

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\tmp81C.tmp.bat
Filesize
150B

MD5
5e204fdd0361227ab448137c2db7fc50

SHA1
aaef86297fd1ee0f6f8b6677512f7ebb276e5ad0

SHA256
6e319f9439be2895a8eae06580cde07cd38bcf32bbfc8c505c82c855c8344e1f

SHA512
8fe1ac8366f790a8f420f9e6a4ce7316aa1ae0787d18a639bd25a3516bb3d500a1d0925b1b7ad670f7fed95e35d09d51ff55285afff6f5e4994e53bb875e404a

Download Submit
C:\Users\Admin\AppData\Roaming\folders.exe
Filesize
309KB

MD5
f4e3415d68ba7564f1400b74e4d7e22b

SHA1
a4a3b80c28db771c0b15c543daa56a229467fdf3

SHA256
1590b1512142d6c974828fc11958a9a5ffdb6673a584b15fda7f93768f639a54

SHA512
8c1a0d8db17301bdc6e2e3c16f953c1fd69ba76e887c797d64eb952155dc204a11b8f04181207cae7723aebddf638031e96225131a2006d07c43eb0555f207d7

Download Submit
C:\Users\Admin\AppData\Roaming\folders.exe
Filesize
309KB

MD5
f4e3415d68ba7564f1400b74e4d7e22b

SHA1
a4a3b80c28db771c0b15c543daa56a229467fdf3

SHA256
1590b1512142d6c974828fc11958a9a5ffdb6673a584b15fda7f93768f639a54

SHA512
8c1a0d8db17301bdc6e2e3c16f953c1fd69ba76e887c797d64eb952155dc204a11b8f04181207cae7723aebddf638031e96225131a2006d07c43eb0555f207d7

Download Submit
\Users\Admin\AppData\Roaming\folders.exe
Filesize
309KB

MD5
f4e3415d68ba7564f1400b74e4d7e22b

SHA1
a4a3b80c28db771c0b15c543daa56a229467fdf3

SHA256
1590b1512142d6c974828fc11958a9a5ffdb6673a584b15fda7f93768f639a54

SHA512
8c1a0d8db17301bdc6e2e3c16f953c1fd69ba76e887c797d64eb952155dc204a11b8f04181207cae7723aebddf638031e96225131a2006d07c43eb0555f207d7

Download Submit
\Users\Admin\AppData\Roaming\folders.exe
Filesize
309KB

MD5
f4e3415d68ba7564f1400b74e4d7e22b

SHA1
a4a3b80c28db771c0b15c543daa56a229467fdf3

SHA256
1590b1512142d6c974828fc11958a9a5ffdb6673a584b15fda7f93768f639a54

SHA512
8c1a0d8db17301bdc6e2e3c16f953c1fd69ba76e887c797d64eb952155dc204a11b8f04181207cae7723aebddf638031e96225131a2006d07c43eb0555f207d7

Download Submit
memory/800-58-0x0000000000000000-mapping.dmp

Download
memory/952-60-0x0000000000000000-mapping.dmp

Download
memory/980-66-0x0000000000000000-mapping.dmp

Download
memory/980-68-0x0000000000F00000-0x0000000000F54000-memory.dmp

Filesize
336KB

Download
memory/980-70-0x0000000000570000-0x0000000000582000-memory.dmp

Filesize
72KB

Download
memory/1096-54-0x0000000000D90000-0x0000000000DE4000-memory.dmp

Filesize
336KB

Download
memory/1096-57-0x00000000003B0000-0x00000000003C2000-memory.dmp

Filesize
72KB

Download
memory/1096-56-0x0000000000200000-0x0000000000210000-memory.dmp

Filesize
64KB

Download
memory/1096-55-0x00000000768A1000-0x00000000768A3000-memory.dmp

Filesize
8KB

Download
memory/1752-59-0x0000000000000000-mapping.dmp

Download
memory/1816-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads