asyncrat | fbd85258618d241a24904b372d95d4db16fa344e555ebdea2fe59e4c506194c0

General

Target

lkklnsgtnsdfgdfgsdfg.exe
Size

47KB
MD5

f6dac35d571337de0dcbfd8488519383
SHA1

f7807ad2b9c086889e492a3ff8e9a47df0d9ee19
SHA256

fbd85258618d241a24904b372d95d4db16fa344e555ebdea2fe59e4c506194c0
SHA512

5f26dec175882f1740e405fa7129043a705d47de295547d4ce0a6047255b77994e398f26aa552b0ae119785749ae02f6339eadc97b5fc9c3e28cb3a1b60971c1
SSDEEP

768:DuQKNTREhzxrWUXrm5mo2q7ZwuoFI0rxfvR6fPIy840bMUCLDCUtdv8ewBkd6WRz:DuQKNTR+W2ZuojxfvR3y8zbpZU38eO0Z

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:61882

rahyufgsaf-61882.portmap.host:6606

rahyufgsaf-61882.portmap.host:7707

rahyufgsaf-61882.portmap.host:8808

rahyufgsaf-61882.portmap.host:61882

Mutex

jQF9EeB2cbGS

Attributes

delay
3
install
true
install_file
roar.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0008000000015d0e-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2684	roar.exe

Loads dropped DLL 1 IoCs

pid	Process
2820	cmd.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	roar.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lkklnsgtnsdfgdfgsdfg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2908	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2904	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2372	lkklnsgtnsdfgdfgsdfg.exe
2372	lkklnsgtnsdfgdfgsdfg.exe
2372	lkklnsgtnsdfgdfgsdfg.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2372	lkklnsgtnsdfgdfgsdfg.exe
Token: SeDebugPrivilege	2684	roar.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2860	2372	lkklnsgtnsdfgdfgsdfg.exe	31
PID 2372 wrote to memory of 2860	2372	lkklnsgtnsdfgdfgsdfg.exe	31
PID 2372 wrote to memory of 2860	2372	lkklnsgtnsdfgdfgsdfg.exe	31
PID 2372 wrote to memory of 2860	2372	lkklnsgtnsdfgdfgsdfg.exe	31
PID 2372 wrote to memory of 2820	2372	lkklnsgtnsdfgdfgsdfg.exe	33
PID 2372 wrote to memory of 2820	2372	lkklnsgtnsdfgdfgsdfg.exe	33
PID 2372 wrote to memory of 2820	2372	lkklnsgtnsdfgdfgsdfg.exe	33
PID 2372 wrote to memory of 2820	2372	lkklnsgtnsdfgdfgsdfg.exe	33
PID 2820 wrote to memory of 2908	2820	cmd.exe	35
PID 2820 wrote to memory of 2908	2820	cmd.exe	35
PID 2820 wrote to memory of 2908	2820	cmd.exe	35
PID 2820 wrote to memory of 2908	2820	cmd.exe	35
PID 2860 wrote to memory of 2904	2860	cmd.exe	36
PID 2860 wrote to memory of 2904	2860	cmd.exe	36
PID 2860 wrote to memory of 2904	2860	cmd.exe	36
PID 2860 wrote to memory of 2904	2860	cmd.exe	36
PID 2820 wrote to memory of 2684	2820	cmd.exe	37
PID 2820 wrote to memory of 2684	2820	cmd.exe	37
PID 2820 wrote to memory of 2684	2820	cmd.exe	37
PID 2820 wrote to memory of 2684	2820	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\lkklnsgtnsdfgdfgsdfg.exe
"C:\Users\Admin\AppData\Local\Temp\lkklnsgtnsdfgdfgsdfg.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "roar" /tr '"C:\Users\Admin\AppData\Roaming\roar.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2860
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "roar" /tr '"C:\Users\Admin\AppData\Roaming\roar.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2904
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB367.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2908
- - C:\Users\Admin\AppData\Roaming\roar.exe
    "C:\Users\Admin\AppData\Roaming\roar.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB367.tmp.bat

Filesize
148B

MD5
c9554240bab9ad254b2528b3b2b5d6e9

SHA1
a9dc4fd9d9ccc17b05ddd3540bc2a5e68ccece86

SHA256
1e3e45cee6faffe8103ba5ed4f72a4331f1481ab8e6406de00ccbdeac6fc3bed

SHA512
de0a950511aabdb2d12be0863bc6ac015ebf70150a49b8a5a83bd08b1bc9f56e4dfdffd682c3eb646543ef5c42b99438af880c04aa1424473f5fb89778e913f8

Download Submit
\Users\Admin\AppData\Roaming\roar.exe

Filesize
47KB

MD5
f6dac35d571337de0dcbfd8488519383

SHA1
f7807ad2b9c086889e492a3ff8e9a47df0d9ee19

SHA256
fbd85258618d241a24904b372d95d4db16fa344e555ebdea2fe59e4c506194c0

SHA512
5f26dec175882f1740e405fa7129043a705d47de295547d4ce0a6047255b77994e398f26aa552b0ae119785749ae02f6339eadc97b5fc9c3e28cb3a1b60971c1

Download Submit
memory/2372-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2372-1-0x0000000000010000-0x0000000000022000-memory.dmp

Filesize
72KB

Download
memory/2372-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2372-11-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-16-0x0000000000D10000-0x0000000000D22000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads