asyncrat | 54cff1f1f65f87805c94865727bdd49425ac64a1f9d9d3b758e933e5928354d8

General

Target

Fakz.zip
Size

22KB
MD5

1ec66394ed0030c48d10196ccc498c6e
SHA1

1c89fd722bd1be31672a1aba4bfcb09354729917
SHA256

54cff1f1f65f87805c94865727bdd49425ac64a1f9d9d3b758e933e5928354d8
SHA512

4615e8ccbe6aba4d6f2ed436c7e061bb962100c7367992ac1105c9ca6de609c80e844969459b035a499f764bf322a3629bcc8d2f2963166a794c217c2f8e2ba9
SSDEEP

384:NE6hhodYWhY1XXH92vjHj8HpUsoanhetSNSabWfjdfpaiWO0+JH8xTcCqT63t:NlqY1n0rHjMproanhWmKfZfpapp+JH8p

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

Mutex

GhA6jcKb6Xjr

Attributes

delay
3
install
false
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

Processes:

resource	yara_rule
behavioral2/files/0x0008000000023ccc-4.dat	family_asyncrat

Executes dropped EXE 2 IoCs

Processes:

PrivateFortniteCheatDONTSHARE.exePrivateFortniteCheatDONTSHARE.exe

pid	Process
2400	PrivateFortniteCheatDONTSHARE.exe
1520	PrivateFortniteCheatDONTSHARE.exe

Drops file in System32 directory 11 IoCs

Processes:

svchost.exe

description	ioc	Process
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.log	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSSres00002.jrs	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.jfm	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.dat	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.jcp	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.jtx	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSStmp.log	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSSres00001.jrs	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.chk	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.dat	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.chk	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

PrivateFortniteCheatDONTSHARE.exePrivateFortniteCheatDONTSHARE.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PrivateFortniteCheatDONTSHARE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PrivateFortniteCheatDONTSHARE.exe

Modifies registry class 1 IoCs

Processes:

mspaint.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000_Classes\Local Settings	mspaint.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mspaint.exe

pid	Process
3520	mspaint.exe
3520	mspaint.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

7zFM.exe

pid	Process
2056	7zFM.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

7zFM.exe

description	pid	Process
Token: SeRestorePrivilege	2056	7zFM.exe
Token: 35	2056	7zFM.exe
Token: SeSecurityPrivilege	2056	7zFM.exe
Token: SeSecurityPrivilege	2056	7zFM.exe
Token: SeSecurityPrivilege	2056	7zFM.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

7zFM.exe

pid	Process
2056	7zFM.exe
2056	7zFM.exe
2056	7zFM.exe
2056	7zFM.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mspaint.exeOpenWith.exe

pid	Process
3520	mspaint.exe
4788	OpenWith.exe

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Fakz.zip"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2056

C:\Users\Admin\Desktop\PrivateFortniteCheatDONTSHARE.exe
"C:\Users\Admin\Desktop\PrivateFortniteCheatDONTSHARE.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2400

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:412

C:\Users\Admin\Desktop\d\PrivateFortniteCheatDONTSHARE.exe
"C:\Users\Admin\Desktop\d\PrivateFortniteCheatDONTSHARE.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1520

C:\Windows\system32\mspaint.exe
"C:\Windows\system32\mspaint.exe" "C:\Users\Admin\Desktop\AddSkip.jfif" /ForceBootstrapPaint3D
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3520

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s DsSvc
1⤵
- Drops file in System32 directory
PID:1248

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:4788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Desktop\PrivateFortniteCheatDONTSHARE.exe

Filesize
45KB

MD5
242dc371615d766f363bbbde62fe673f

SHA1
0436e440da1be7c59c096be0b0db2193d28c7028

SHA256
3ecd0a00ecbf64e516893de3a7887c5e92432a0e95da679785fc3c61d5457641

SHA512
d1be6345950d8505769721b34231efa3f8564d8c58c15689c67d155f265d373c4e9c3cec6f973210337c1da31f8ae3c045cb3bafd65f589c18f7d62efd8bac41

Download Submit
memory/1248-28-0x000001F963790000-0x000001F963791000-memory.dmp

Filesize
4KB

Download
memory/1248-32-0x000001F963820000-0x000001F963821000-memory.dmp

Filesize
4KB

Download
memory/1248-35-0x000001F963830000-0x000001F963831000-memory.dmp

Filesize
4KB

Download
memory/1248-34-0x000001F963830000-0x000001F963831000-memory.dmp

Filesize
4KB

Download
memory/1248-31-0x000001F963820000-0x000001F963821000-memory.dmp

Filesize
4KB

Download
memory/1248-19-0x000001F95ABC0000-0x000001F95ABD0000-memory.dmp

Filesize
64KB

Download
memory/1248-15-0x000001F95AB80000-0x000001F95AB90000-memory.dmp

Filesize
64KB

Download
memory/1248-26-0x000001F963710000-0x000001F963711000-memory.dmp

Filesize
4KB

Download
memory/1248-30-0x000001F963790000-0x000001F963791000-memory.dmp

Filesize
4KB

Download
memory/2400-6-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/2400-7-0x0000000000FA0000-0x0000000000FB2000-memory.dmp

Filesize
72KB

Download
memory/2400-10-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/2400-9-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/2400-8-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads