asyncrat | ee6aa50f61c71ad0a85d0c60e8cec35c45b949da9e173d79cdcb9c7586ac4e12

General

Target

Invoice ID-(679789789).vbs
Size

790KB
MD5

f02bd913e532f0ce5cc24adc82f8d0b3
SHA1

49fb5baaa600a5208ba80e18bf89142c3f20b4ab
SHA256

ee6aa50f61c71ad0a85d0c60e8cec35c45b949da9e173d79cdcb9c7586ac4e12
SHA512

64537b7b8b0fb21f41727c99bf6c8da7edc1f4a161a3d11da726c7e2f5b1cb653827ae6c2eba3dbe4ce2a618f839972c36e0cfc915f012b42b5d6d3d75ad3ea6

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

ahmed21018.linkpc.net:6666

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
HfV4Y9fCgIsC3FKVpoDmniTLvXYcA64a
anti_detection
false
autorun
true
bdos
false
delay
Default
host
ahmed21018.linkpc.net
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
6666
version
0.5.7B

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/1224-9-0x00000000004D0000-0x00000000004DC000-memory.dmp	asyncrat
behavioral1/memory/1568-23-0x0000000000530000-0x0000000000550000-memory.dmp	asyncrat

Executes dropped EXE 2 IoCs

Processes:

57yhyh.ExEjava updater.exe

pid process

1224 57yhyh.ExE
1568 java updater.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1112 cmd.exe
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

2044 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

924 timeout.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

57yhyh.ExE

pid process

1224 57yhyh.ExE
1224 57yhyh.ExE
1224 57yhyh.ExE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

57yhyh.ExEjava updater.exe

description pid process

Token: SeDebugPrivilege 1224 57yhyh.ExE
Token: SeDebugPrivilege 1568 java updater.exe

pid	process
1224	57yhyh.ExE
1568	java updater.exe

pid	process
1112	cmd.exe

pid	process
2044	schtasks.exe

pid	process
924	timeout.exe

pid	process
1224	57yhyh.ExE
1224	57yhyh.ExE
1224	57yhyh.ExE

description	pid	process
Token: SeDebugPrivilege	1224	57yhyh.ExE
Token: SeDebugPrivilege	1568	java updater.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

WScript.exe57yhyh.ExEcmd.execmd.exe

description	pid	process	target process
PID 776 wrote to memory of 1224	776	WScript.exe	57yhyh.ExE
PID 776 wrote to memory of 1224	776	WScript.exe	57yhyh.ExE
PID 776 wrote to memory of 1224	776	WScript.exe	57yhyh.ExE
PID 776 wrote to memory of 1224	776	WScript.exe	57yhyh.ExE
PID 1224 wrote to memory of 396	1224	57yhyh.ExE	cmd.exe
PID 1224 wrote to memory of 396	1224	57yhyh.ExE	cmd.exe
PID 1224 wrote to memory of 396	1224	57yhyh.ExE	cmd.exe
PID 1224 wrote to memory of 396	1224	57yhyh.ExE	cmd.exe
PID 1224 wrote to memory of 1112	1224	57yhyh.ExE	cmd.exe
PID 1224 wrote to memory of 1112	1224	57yhyh.ExE	cmd.exe
PID 1224 wrote to memory of 1112	1224	57yhyh.ExE	cmd.exe
PID 1224 wrote to memory of 1112	1224	57yhyh.ExE	cmd.exe
PID 396 wrote to memory of 2044	396	cmd.exe	schtasks.exe
PID 396 wrote to memory of 2044	396	cmd.exe	schtasks.exe
PID 396 wrote to memory of 2044	396	cmd.exe	schtasks.exe
PID 396 wrote to memory of 2044	396	cmd.exe	schtasks.exe
PID 1112 wrote to memory of 924	1112	cmd.exe	timeout.exe
PID 1112 wrote to memory of 924	1112	cmd.exe	timeout.exe
PID 1112 wrote to memory of 924	1112	cmd.exe	timeout.exe
PID 1112 wrote to memory of 924	1112	cmd.exe	timeout.exe
PID 1112 wrote to memory of 1568	1112	cmd.exe	java updater.exe
PID 1112 wrote to memory of 1568	1112	cmd.exe	java updater.exe
PID 1112 wrote to memory of 1568	1112	cmd.exe	java updater.exe
PID 1112 wrote to memory of 1568	1112	cmd.exe	java updater.exe
PID 1112 wrote to memory of 1568	1112	cmd.exe	java updater.exe
PID 1112 wrote to memory of 1568	1112	cmd.exe	java updater.exe
PID 1112 wrote to memory of 1568	1112	cmd.exe	java updater.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Invoice ID-(679789789).vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:776

C:\Users\Admin\AppData\Local\Temp\57yhyh.ExE
C:\Users\Admin\AppData\Local\Temp\57yhyh.ExE
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "java updater" /tr '"C:\Users\Admin\AppData\Roaming\java updater.exe"' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:396

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "java updater" /tr '"C:\Users\Admin\AppData\Roaming\java updater.exe"'
4⤵
- Creates scheduled task(s)
PID:2044

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp4460.tmp.bat""
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1112

C:\Windows\SysWOW64\timeout.exe
timeout 3
4⤵
- Delays execution with timeout.exe
PID:924

C:\Users\Admin\AppData\Roaming\java updater.exe
"C:\Users\Admin\AppData\Roaming\java updater.exe"
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1568

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\57yhyh.ExE
MD5
cfb2ab64e731d5649ec6c3e10a6d8a68

SHA1
9b90bd0ff358dc0b593f46f3ce3893676aa72dfb

SHA256
4c03ce198ff982b17ffa2da5c94c4715c6ec6e85792669dcd795945b18b8a09f

SHA512
30a89d466749e3fb546f8a0343ad063fbc05368d4067dd53f3b5d7d2c7f57c546c6109a636afa2f2f7a35ce7e57bf367812eeb3fad2027d93e262038856fa737

Download Submit
C:\Users\Admin\AppData\Local\Temp\57yhyh.ExE
MD5
cfb2ab64e731d5649ec6c3e10a6d8a68

SHA1
9b90bd0ff358dc0b593f46f3ce3893676aa72dfb

SHA256
4c03ce198ff982b17ffa2da5c94c4715c6ec6e85792669dcd795945b18b8a09f

SHA512
30a89d466749e3fb546f8a0343ad063fbc05368d4067dd53f3b5d7d2c7f57c546c6109a636afa2f2f7a35ce7e57bf367812eeb3fad2027d93e262038856fa737

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4460.tmp.bat
MD5
3b955c85a23da0c17953d60fddba0195

SHA1
e541bd32b9d017a79a21d9b5958344963f4cde36

SHA256
36dd510e4ceeb8938d6909596ee4e474ff7b4652f0036d84f2a4a85ee25bccbd

SHA512
1bc5658cf1c22484b3abf56a8c486d7e5fee87daf31310eaf1e5795e4adbfb33a986988a4c05975971b5f120f26463594e8e905af50355235a70dd9c8b4e1e06

Download Submit
C:\Users\Admin\AppData\Roaming\java updater.exe
MD5
cfb2ab64e731d5649ec6c3e10a6d8a68

SHA1
9b90bd0ff358dc0b593f46f3ce3893676aa72dfb

SHA256
4c03ce198ff982b17ffa2da5c94c4715c6ec6e85792669dcd795945b18b8a09f

SHA512
30a89d466749e3fb546f8a0343ad063fbc05368d4067dd53f3b5d7d2c7f57c546c6109a636afa2f2f7a35ce7e57bf367812eeb3fad2027d93e262038856fa737

Download Submit
C:\Users\Admin\AppData\Roaming\java updater.exe
MD5
cfb2ab64e731d5649ec6c3e10a6d8a68

SHA1
9b90bd0ff358dc0b593f46f3ce3893676aa72dfb

SHA256
4c03ce198ff982b17ffa2da5c94c4715c6ec6e85792669dcd795945b18b8a09f

SHA512
30a89d466749e3fb546f8a0343ad063fbc05368d4067dd53f3b5d7d2c7f57c546c6109a636afa2f2f7a35ce7e57bf367812eeb3fad2027d93e262038856fa737

Download Submit
\Users\Admin\AppData\Roaming\java updater.exe
MD5
cfb2ab64e731d5649ec6c3e10a6d8a68

SHA1
9b90bd0ff358dc0b593f46f3ce3893676aa72dfb

SHA256
4c03ce198ff982b17ffa2da5c94c4715c6ec6e85792669dcd795945b18b8a09f

SHA512
30a89d466749e3fb546f8a0343ad063fbc05368d4067dd53f3b5d7d2c7f57c546c6109a636afa2f2f7a35ce7e57bf367812eeb3fad2027d93e262038856fa737

Download Submit
memory/396-10-0x0000000000000000-mapping.dmp

Download
memory/776-4-0x0000000002830000-0x0000000002834000-memory.dmp

Filesize
16KB

Download
memory/924-14-0x0000000000000000-mapping.dmp

Download
memory/1112-11-0x0000000000000000-mapping.dmp

Download
memory/1224-2-0x0000000000000000-mapping.dmp

Download
memory/1224-9-0x00000000004D0000-0x00000000004DC000-memory.dmp

Filesize
48KB

Download
memory/1224-7-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/1224-6-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/1568-17-0x0000000000000000-mapping.dmp

Download
memory/1568-19-0x0000000073020000-0x000000007370E000-memory.dmp

Filesize
6.9MB

Download
memory/1568-20-0x0000000001240000-0x0000000001241000-memory.dmp

Filesize
4KB

Download
memory/1568-23-0x0000000000530000-0x0000000000550000-memory.dmp

Filesize
128KB

Download
memory/2044-12-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads