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/0x000a000000023b89-12.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	lkklnsgtnsdfgdfgsdfg.exe

Executes dropped EXE 1 IoCs

pid	Process
2552	roar.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	lkklnsgtnsdfgdfgsdfg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4704	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
3544	schtasks.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
4792	lkklnsgtnsdfgdfgsdfg.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4792	lkklnsgtnsdfgdfgsdfg.exe
Token: SeDebugPrivilege	2552	roar.exe
Token: SeDebugPrivilege	1708	taskmgr.exe
Token: SeSystemProfilePrivilege	1708	taskmgr.exe
Token: SeCreateGlobalPrivilege	1708	taskmgr.exe
Token: 33	1708	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1708	taskmgr.exe

Suspicious use of FindShellTrayWindow 44 IoCs

pid	Process
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe

Suspicious use of SendNotifyMessage 44 IoCs

pid	Process
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe
1708	taskmgr.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 4548	4792	lkklnsgtnsdfgdfgsdfg.exe	86
PID 4792 wrote to memory of 4548	4792	lkklnsgtnsdfgdfgsdfg.exe	86
PID 4792 wrote to memory of 4548	4792	lkklnsgtnsdfgdfgsdfg.exe	86
PID 4792 wrote to memory of 3828	4792	lkklnsgtnsdfgdfgsdfg.exe	88
PID 4792 wrote to memory of 3828	4792	lkklnsgtnsdfgdfgsdfg.exe	88
PID 4792 wrote to memory of 3828	4792	lkklnsgtnsdfgdfgsdfg.exe	88
PID 3828 wrote to memory of 4704	3828	cmd.exe	90
PID 3828 wrote to memory of 4704	3828	cmd.exe	90
PID 3828 wrote to memory of 4704	3828	cmd.exe	90
PID 4548 wrote to memory of 3544	4548	cmd.exe	91
PID 4548 wrote to memory of 3544	4548	cmd.exe	91
PID 4548 wrote to memory of 3544	4548	cmd.exe	91
PID 3828 wrote to memory of 2552	3828	cmd.exe	93
PID 3828 wrote to memory of 2552	3828	cmd.exe	93
PID 3828 wrote to memory of 2552	3828	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\lkklnsgtnsdfgdfgsdfg.exe
"C:\Users\Admin\AppData\Local\Temp\lkklnsgtnsdfgdfgsdfg.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4792
- 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:4548
- - 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:3544
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA42F.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3828
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4704
- - 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:2552

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /0
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1708

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

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\tmpA42F.tmp.bat

Filesize
148B

MD5
602ce139a905e7267b3a83da62f6847a

SHA1
08e33aeba816999164c3c2b72b787f791807d093

SHA256
37d7d00518d9768f2bca57da195d7a0443595e9086d839d9c370ec9b70b29e35

SHA512
fb0a99b845bc6451d6b96a3959836912e70195f0d3b0dd86b9dbbf58825a461abefe2574432e149a57ae332bafd8ab4fdfed42c2e330497c3f40fd87291df396

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

Filesize
47KB

MD5
f6dac35d571337de0dcbfd8488519383

SHA1
f7807ad2b9c086889e492a3ff8e9a47df0d9ee19

SHA256
fbd85258618d241a24904b372d95d4db16fa344e555ebdea2fe59e4c506194c0

SHA512
5f26dec175882f1740e405fa7129043a705d47de295547d4ce0a6047255b77994e398f26aa552b0ae119785749ae02f6339eadc97b5fc9c3e28cb3a1b60971c1

Download Submit
memory/1708-26-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-27-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-22-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-23-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-24-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-25-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-16-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-18-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-17-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/1708-28-0x000001F7A4E90000-0x000001F7A4E91000-memory.dmp

Filesize
4KB

Download
memory/2552-14-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/2552-15-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4792-1-0x0000000000640000-0x0000000000652000-memory.dmp

Filesize
72KB

Download
memory/4792-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/4792-3-0x0000000004FF0000-0x0000000005056000-memory.dmp

Filesize
408KB

Download
memory/4792-2-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/4792-9-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/4792-4-0x0000000005440000-0x00000000054DC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads