asyncrat | beeaf2d429366f0fc23e5934c3c27cbea8fd6deec0d9a88395baa807836d78bf

General

Target

顧客訂單_081720.exe
Size

399KB
MD5

fca5062e93aad2523c6bb28f1147629d
SHA1

9269d7bdd9332107c524ad9280dfb8cef0bcc6a2
SHA256

9be04012b4927a7e93498068acaaac6e157192df66509a20079fa39084735247
SHA512

9195d99b6d8c547920a13f7a483fa71706145f09f1aa7ea3c552e5d48ed9a824314ccaefa30b0a869bbc7a6c82483be350a8ca759ac3eeabe9026432c104ab45

Score

10^/10

asyncrat god's mercy rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

GOD'S MERCY

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/reQxa5Ah

aes.plain

Signatures

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

Async RAT payload 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1124-64-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1124-65-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1124-66-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1124-67-0x000000000040C76E-mapping.dmp	asyncrat
behavioral1/memory/1124-69-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1124-71-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of SetThreadContext 1 IoCs

Processes:

顧客訂單_081720.exe

description pid process target process

PID 956 set thread context of 1124 956 顧客訂單_081720.exe MSBuild.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

1388 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

顧客訂單_081720.exe

pid process

956 顧客訂單_081720.exe
956 顧客訂單_081720.exe
956 顧客訂單_081720.exe
956 顧客訂單_081720.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

顧客訂單_081720.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 956 顧客訂單_081720.exe
Token: SeDebugPrivilege 1124 MSBuild.exe

description	pid	process	target process
PID 956 set thread context of 1124	956	顧客訂單_081720.exe	MSBuild.exe

pid	process
1388	schtasks.exe

pid	process
956	顧客訂單_081720.exe
956	顧客訂單_081720.exe
956	顧客訂單_081720.exe
956	顧客訂單_081720.exe

description	pid	process
Token: SeDebugPrivilege	956	顧客訂單_081720.exe
Token: SeDebugPrivilege	1124	MSBuild.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

顧客訂單_081720.exe

description	pid	process	target process
PID 956 wrote to memory of 1388	956	顧客訂單_081720.exe	schtasks.exe
PID 956 wrote to memory of 1388	956	顧客訂單_081720.exe	schtasks.exe
PID 956 wrote to memory of 1388	956	顧客訂單_081720.exe	schtasks.exe
PID 956 wrote to memory of 1388	956	顧客訂單_081720.exe	schtasks.exe
PID 956 wrote to memory of 280	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 280	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 280	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 280	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 580	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 580	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 580	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 580	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 568	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 568	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 568	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 568	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe
PID 956 wrote to memory of 1124	956	顧客訂單_081720.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\顧客訂單_081720.exe
"C:\Users\Admin\AppData\Local\Temp\顧客訂單_081720.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SzJeVYqHm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E95.tmp"
2⤵
- Creates scheduled task(s)
PID:1388

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
PID:280

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
PID:580

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
PID:568

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1124

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

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5E95.tmp
Filesize
1KB

MD5
4a862d2c9f26712b967386bb6c08dc82

SHA1
c0a97aec0d5c2b20e1489ac2e563517838c4a9b7

SHA256
b7fda82ccd67be85d0fc8a187cf3638c0b30d89e4e6505ce416a5b377c5f473b

SHA512
a6b00a2f9b801a308cd7bc3b3c8e7e123bba01fc977bf090a3f775425ce3e9a4af6669ecd3ed837d7ee32d07d810f08d537a068b988aa53985435b02cf6b4dbc

Download Submit
memory/956-57-0x0000000000E70000-0x0000000000EBA000-memory.dmp

Filesize
296KB

Download
memory/956-55-0x00000000756E1000-0x00000000756E3000-memory.dmp

Filesize
8KB

Download
memory/956-54-0x0000000000F10000-0x0000000000F7C000-memory.dmp

Filesize
432KB

Download
memory/956-58-0x00000000007E0000-0x0000000000802000-memory.dmp

Filesize
136KB

Download
memory/956-56-0x0000000000370000-0x0000000000378000-memory.dmp

Filesize
32KB

Download
memory/1124-66-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1124-61-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1124-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1124-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1124-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1124-67-0x000000000040C76E-mapping.dmp

Download
memory/1124-69-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1124-71-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1388-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads