asyncrat | 95fbecb2d0b0aa0fa80e02732237fc9eb43fc9f8af1efff062435b44b57f1a03

General

Target

nJhfKDwP.exe
Size

52KB
MD5

4198b4aad34131326392f6ff004bdc3b
SHA1

343397a61c1cb5d96db6c382d0d100a71b7a5675
SHA256

95fbecb2d0b0aa0fa80e02732237fc9eb43fc9f8af1efff062435b44b57f1a03
SHA512

818bfce435a35ddb4d0441235aee77a371334c87c66e7cf261c494ff4feada5dc0c21faee15480aa43e6627f5941dacd32363d5010a2666830f6a21435616e95

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:4782

cademc.zapto.org:6606

cademc.zapto.org:7707

cademc.zapto.org:8808

cademc.zapto.org:4782

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
ZhQQk94aHNZ5cX6T38xeg5GO1INH17ha
anti_detection
false
autorun
true
bdos
false
delay
Default
host
127.0.0.1,cademc.zapto.org
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
6606,7707,8808,4782
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
C:\Users\Admin\AppData\Roaming\JDKUpdater.exe	asyncrat
C:\Users\Admin\AppData\Roaming\JDKUpdater.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

JDKUpdater.exe

pid process

1300 JDKUpdater.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

1308 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2832 timeout.exe

pid	process
1300	JDKUpdater.exe

pid	process
1308	schtasks.exe

pid	process
2832	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

nJhfKDwP.exe

pid	process
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe
620	nJhfKDwP.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

nJhfKDwP.exeJDKUpdater.exe

description pid process

Token: SeDebugPrivilege 620 nJhfKDwP.exe
Token: SeDebugPrivilege 1300 JDKUpdater.exe

description	pid	process
Token: SeDebugPrivilege	620	nJhfKDwP.exe
Token: SeDebugPrivilege	1300	JDKUpdater.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

nJhfKDwP.execmd.execmd.exe

description	pid	process	target process
PID 620 wrote to memory of 3468	620	nJhfKDwP.exe	cmd.exe
PID 620 wrote to memory of 3468	620	nJhfKDwP.exe	cmd.exe
PID 620 wrote to memory of 3468	620	nJhfKDwP.exe	cmd.exe
PID 620 wrote to memory of 1908	620	nJhfKDwP.exe	cmd.exe
PID 620 wrote to memory of 1908	620	nJhfKDwP.exe	cmd.exe
PID 620 wrote to memory of 1908	620	nJhfKDwP.exe	cmd.exe
PID 3468 wrote to memory of 1308	3468	cmd.exe	schtasks.exe
PID 3468 wrote to memory of 1308	3468	cmd.exe	schtasks.exe
PID 3468 wrote to memory of 1308	3468	cmd.exe	schtasks.exe
PID 1908 wrote to memory of 2832	1908	cmd.exe	timeout.exe
PID 1908 wrote to memory of 2832	1908	cmd.exe	timeout.exe
PID 1908 wrote to memory of 2832	1908	cmd.exe	timeout.exe
PID 1908 wrote to memory of 1300	1908	cmd.exe	JDKUpdater.exe
PID 1908 wrote to memory of 1300	1908	cmd.exe	JDKUpdater.exe
PID 1908 wrote to memory of 1300	1908	cmd.exe	JDKUpdater.exe

C:\Users\Admin\AppData\Local\Temp\nJhfKDwP.exe
"C:\Users\Admin\AppData\Local\Temp\nJhfKDwP.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:620

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "JDKUpdater" /tr '"C:\Users\Admin\AppData\Roaming\JDKUpdater.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3468

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "JDKUpdater" /tr '"C:\Users\Admin\AppData\Roaming\JDKUpdater.exe"'
3⤵
- Creates scheduled task(s)
PID:1308

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8F36.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:1908

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2832

C:\Users\Admin\AppData\Roaming\JDKUpdater.exe
"C:\Users\Admin\AppData\Roaming\JDKUpdater.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1300

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8F36.tmp.bat
MD5
87a16a34e5b45fef5628346a9725c21a

SHA1
d955b6633b307fd85f7a25771beb60070e3eecc2

SHA256
44c545602e6050954e0b031caaa6f04ebdedc0b488e7d0d0e66227daa5badc87

SHA512
025e43d9622d582dd10047d1a063b2cd0bc18fc2c3ac01a9f9ee144f520edcdecd310f59e43520693a20e88d9dcc0bba4f01752c9dab50e17f60d145c1779449

Download Submit
C:\Users\Admin\AppData\Roaming\JDKUpdater.exe
MD5
4198b4aad34131326392f6ff004bdc3b

SHA1
343397a61c1cb5d96db6c382d0d100a71b7a5675

SHA256
95fbecb2d0b0aa0fa80e02732237fc9eb43fc9f8af1efff062435b44b57f1a03

SHA512
818bfce435a35ddb4d0441235aee77a371334c87c66e7cf261c494ff4feada5dc0c21faee15480aa43e6627f5941dacd32363d5010a2666830f6a21435616e95

Download Submit
C:\Users\Admin\AppData\Roaming\JDKUpdater.exe
MD5
4198b4aad34131326392f6ff004bdc3b

SHA1
343397a61c1cb5d96db6c382d0d100a71b7a5675

SHA256
95fbecb2d0b0aa0fa80e02732237fc9eb43fc9f8af1efff062435b44b57f1a03

SHA512
818bfce435a35ddb4d0441235aee77a371334c87c66e7cf261c494ff4feada5dc0c21faee15480aa43e6627f5941dacd32363d5010a2666830f6a21435616e95

Download Submit
memory/620-114-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/620-116-0x0000000004E20000-0x0000000004E21000-memory.dmp

Filesize
4KB

Download
memory/620-117-0x0000000004D70000-0x0000000004D71000-memory.dmp

Filesize
4KB

Download
memory/1300-123-0x0000000000000000-mapping.dmp

Download
memory/1300-128-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

Download
memory/1308-120-0x0000000000000000-mapping.dmp

Download
memory/1908-119-0x0000000000000000-mapping.dmp

Download
memory/2832-122-0x0000000000000000-mapping.dmp

Download
memory/3468-118-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads