asyncrat | e51fe517af7c5e00a484199d6aed86aaec898fabc294c43ac3190c95c770f6e1

General

Target
Payment Copy.exe
Size 492KB
Sample201230-1gth7fn2s2
SHA256 e51fe517af7c5e00a484199d6aed86aaec898fabc294c43ac3190c95c770f6e1
MD5 7252677dff6c881ecbab4f53d6c0a344
SHA1 838f0094d88eed0154411b16d5d03b424a272c19
SHA512 f1cd2717a731f27addd1eaa6fc5cdd9c57963e8963dcdb57a20ec61225d22787eb9fe66c631eacfb6a76d5d8b2a54c7fd68c0995e52348eb021b6559c90e144b
MD5 SHA1 SHA512

Score

10^/10

asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

chongmei33.publicvm.com:49746
chongmei33.publicvm.com:2703
chongmei33.publicvm.com:49714
chongmei33.publicvm.com:49703
185.165.153.116:49746
185.165.153.116:2703
185.165.153.116:49714
185.165.153.116:49703
54.37.36.116:49746
54.37.36.116:2703
54.37.36.116:49714
54.37.36.116:49703
185.244.30.92:49746
185.244.30.92:2703
185.244.30.92:49714
185.244.30.92:49703
dongreg202020.duckdns.org:49746
dongreg202020.duckdns.org:2703
dongreg202020.duckdns.org:49714
dongreg202020.duckdns.org:49703
178.33.222.241:49746
178.33.222.241:2703
178.33.222.241:49714
178.33.222.241:49703
rahim321.duckdns.org:49746
rahim321.duckdns.org:2703
rahim321.duckdns.org:49714
rahim321.duckdns.org:49703
79.134.225.92:49746
79.134.225.92:2703
79.134.225.92:49714
79.134.225.92:49703
37.120.208.36:49746
37.120.208.36:2703
37.120.208.36:49714
37.120.208.36:49703

Mutex

word_6SI86kPnk

Attributes

aes_key
Hz9AIk2iuw31bDO3o1GepDyHZ5vVJkGp
anti_detection
false
autorun
false
bdos
false
delay
SEPT G8
host
chongmei33.publicvm.com,185.165.153.116,54.37.36.116,185.244.30.92,dongreg202020.duckdns.org,178.33.222.241,rahim321.duckdns.org,79.134.225.92,37.120.208.36
hwid
3
install_file
install_folder
%AppData%
mutex
word_6SI86kPnk
pastebin_config
null
port
49746,2703,49714,49703
version
0.5.7B

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/744-22-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/744-23-0x000000000040C89E-mapping.dmp	asyncrat
behavioral1/memory/744-25-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/744-26-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1672	notepad.exe
744	InstallUtil.exe

Loads dropped DLL 2 IoCs

pid	Process
1836	Payment Copy.exe
1672	notepad.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\notepad = "C:\\Users\\Admin\\notepad.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 744	1672	notepad.exe	33

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1836	Payment Copy.exe
1836	Payment Copy.exe
1836	Payment Copy.exe
1672	notepad.exe
1672	notepad.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	Payment Copy.exe
Token: SeDebugPrivilege	1672	notepad.exe
Token: SeDebugPrivilege	744	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 2016	1836	Payment Copy.exe	26
PID 1836 wrote to memory of 2016	1836	Payment Copy.exe	26
PID 1836 wrote to memory of 2016	1836	Payment Copy.exe	26
PID 1836 wrote to memory of 2016	1836	Payment Copy.exe	26
PID 2016 wrote to memory of 524	2016	cmd.exe	28
PID 2016 wrote to memory of 524	2016	cmd.exe	28
PID 2016 wrote to memory of 524	2016	cmd.exe	28
PID 2016 wrote to memory of 524	2016	cmd.exe	28
PID 1836 wrote to memory of 1672	1836	Payment Copy.exe	32
PID 1836 wrote to memory of 1672	1836	Payment Copy.exe	32
PID 1836 wrote to memory of 1672	1836	Payment Copy.exe	32
PID 1836 wrote to memory of 1672	1836	Payment Copy.exe	32
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33
PID 1672 wrote to memory of 744	1672	notepad.exe	33

C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "notepad" /t REG_SZ /d "C:\Users\Admin\notepad.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2016
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "notepad" /t REG_SZ /d "C:\Users\Admin\notepad.exe"
    3⤵
    - Adds Run key to start application
    PID:524
- C:\Users\Admin\notepad.exe
  "C:\Users\Admin\notepad.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:744

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/744-22-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/744-27-0x00000000749E0000-0x00000000750CE000-memory.dmp

Download

memory/744-26-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/744-25-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/1672-13-0x00000000749E0000-0x00000000750CE000-memory.dmp

Download

memory/1672-19-0x0000000000730000-0x0000000000731000-memory.dmp

Download

memory/1672-18-0x0000000000390000-0x000000000039B000-memory.dmp

Download

memory/1672-14-0x0000000000990000-0x0000000000991000-memory.dmp

Download

memory/1836-6-0x0000000000420000-0x0000000000421000-memory.dmp

Download

memory/1836-5-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/1836-3-0x00000000001A0000-0x00000000001A1000-memory.dmp

Download

memory/1836-2-0x00000000749E0000-0x00000000750CE000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads