asyncrat | 1418386128ff3aea3604cf4295bfa49c56ed30b6a2b47112cd742a74448101eb

General

Target

57b64705c9b52be9842eb45e2721a0d5.exe
Size

676KB
MD5

57b64705c9b52be9842eb45e2721a0d5
SHA1

0bea50c1a2205f7bbb8419fb970beb936866e9aa
SHA256

1418386128ff3aea3604cf4295bfa49c56ed30b6a2b47112cd742a74448101eb
SHA512

28d8f1edb21458ea2e072033f24c409e2f767d14934278d80a50551e946826d50e6cafb6ac2a4e76510f1580692b1cdd3d6acf9d4b701d7c3954b79ec89a10a5

Score

10^/10

asyncrat 3 persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

3

C2

217.64.149.93:1973

Mutex

df4Rtg34dFt5ynrew

Attributes

anti_vm
false
bsod
false
delay
3
install
false
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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/752-64-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/752-65-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/752-66-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/752-67-0x000000000040C6BE-mapping.dmp	asyncrat
behavioral1/memory/752-72-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

752 RegAsm.exe
Loads dropped DLL 2 IoCs

Processes:

57b64705c9b52be9842eb45e2721a0d5.exeRegAsm.exe

pid process

1532 57b64705c9b52be9842eb45e2721a0d5.exe
752 RegAsm.exe

pid	process
752	RegAsm.exe

pid	process
1532	57b64705c9b52be9842eb45e2721a0d5.exe
752	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

57b64705c9b52be9842eb45e2721a0d5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\ght = "\"C:\\Users\\Admin\\AppData\\Roaming\\ght.exe\""	57b64705c9b52be9842eb45e2721a0d5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

57b64705c9b52be9842eb45e2721a0d5.exe

description pid process target process

PID 1532 set thread context of 752 1532 57b64705c9b52be9842eb45e2721a0d5.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

57b64705c9b52be9842eb45e2721a0d5.exe

pid process

1532 57b64705c9b52be9842eb45e2721a0d5.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

57b64705c9b52be9842eb45e2721a0d5.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 1532 57b64705c9b52be9842eb45e2721a0d5.exe
Token: SeDebugPrivilege 752 RegAsm.exe

description	pid	process	target process
PID 1532 set thread context of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe

pid	process
1532	57b64705c9b52be9842eb45e2721a0d5.exe

description	pid	process
Token: SeDebugPrivilege	1532	57b64705c9b52be9842eb45e2721a0d5.exe
Token: SeDebugPrivilege	752	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

57b64705c9b52be9842eb45e2721a0d5.exe

description	pid	process	target process
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe
PID 1532 wrote to memory of 752	1532	57b64705c9b52be9842eb45e2721a0d5.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\57b64705c9b52be9842eb45e2721a0d5.exe
"C:\Users\Admin\AppData\Local\Temp\57b64705c9b52be9842eb45e2721a0d5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1532

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe
MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe
MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/752-67-0x000000000040C6BE-mapping.dmp

Download
memory/752-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/752-63-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/752-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/752-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/752-66-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/752-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/752-74-0x0000000005040000-0x0000000005041000-memory.dmp

Filesize
4KB

Download
memory/1532-60-0x00000000009B0000-0x00000000009C4000-memory.dmp

Filesize
80KB

Download
memory/1532-59-0x00000000058E0000-0x000000000594C000-memory.dmp

Filesize
432KB

Download
memory/1532-55-0x0000000001320000-0x0000000001321000-memory.dmp

Filesize
4KB

Download
memory/1532-58-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download
memory/1532-57-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads