asyncrat | 0cfa73172ff58fb401536620b3e2da2f7eb0a837043c02cbfc7d2edb8c00fe0e

General

Target

0cfa73172ff58fb401536620b3e2da2f7eb0a837043c02cbfc7d2edb8c00fe0e.ps1
Size

438KB
MD5

674301ae02422ceb065a4174c7b9113a
SHA1

ba0b9c514114aa9cc8eed504c770a4f9da0c5674
SHA256

0cfa73172ff58fb401536620b3e2da2f7eb0a837043c02cbfc7d2edb8c00fe0e
SHA512

aa70aa019b196ea338d5cd97f4b5296050e696a5a97b0ed4c4fbd4a23dc9e734fcd8cb56314c04814ebae2ec07645d86e536453fabb9dd3c4af13c6f8870f187
SSDEEP

1536:TjdW/z20+u4dXNR8WrlDnnlVYw7VM4kD2Fq5AGGzeQz4JnImgzP8RiPmHnClK+dv:TjYw7Ev1P4RtluJs

Score

10^/10

asyncrat fox_mado discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

Fox_Mado

Mutex

0000_000

Attributes

delay
3
install
false
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/r3hJ4btd

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Legitimate hosting services abused for malware hosting/C2 1 TTPs 29 IoCs

Web Service

T1102

flow	ioc
67	pastebin.com
15	pastebin.com
43	pastebin.com
49	pastebin.com
53	pastebin.com
54	pastebin.com
60	pastebin.com
14	pastebin.com
39	pastebin.com
42	pastebin.com
61	pastebin.com
18	pastebin.com
70	pastebin.com
64	pastebin.com
41	pastebin.com
44	pastebin.com
45	pastebin.com
50	pastebin.com
62	pastebin.com
63	pastebin.com
19	pastebin.com
25	pastebin.com
26	pastebin.com
69	pastebin.com
51	pastebin.com
68	pastebin.com
52	pastebin.com
65	pastebin.com
66	pastebin.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3484 set thread context of 2412	3484	powershell.exe	83

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3484	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3484	powershell.exe
3484	powershell.exe
2412	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3484	powershell.exe
Token: SeDebugPrivilege	2412	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2412	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3484 wrote to memory of 2412	3484	powershell.exe	83
PID 3484 wrote to memory of 2412	3484	powershell.exe	83
PID 3484 wrote to memory of 2412	3484	powershell.exe	83
PID 3484 wrote to memory of 2412	3484	powershell.exe	83
PID 3484 wrote to memory of 2412	3484	powershell.exe	83
PID 3484 wrote to memory of 2412	3484	powershell.exe	83
PID 3484 wrote to memory of 2412	3484	powershell.exe	83
PID 3484 wrote to memory of 2412	3484	powershell.exe	83

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\0cfa73172ff58fb401536620b3e2da2f7eb0a837043c02cbfc7d2edb8c00fe0e.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3484
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5ribg2ks.tzj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2412-19-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/2412-21-0x0000000004E10000-0x0000000004EA2000-memory.dmp

Filesize
584KB

Download
memory/2412-24-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/2412-23-0x000000007516E000-0x000000007516F000-memory.dmp

Filesize
4KB

Download
memory/2412-22-0x0000000005B90000-0x0000000005B9A000-memory.dmp

Filesize
40KB

Download
memory/2412-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2412-20-0x00000000051B0000-0x0000000005754000-memory.dmp

Filesize
5.6MB

Download
memory/2412-18-0x000000007516E000-0x000000007516F000-memory.dmp

Filesize
4KB

Download
memory/3484-0-0x00007FFCFD083000-0x00007FFCFD085000-memory.dmp

Filesize
8KB

Download
memory/3484-17-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/3484-2-0x00000215C59D0000-0x00000215C59F2000-memory.dmp

Filesize
136KB

Download
memory/3484-13-0x00000215ACC50000-0x00000215ACC5C000-memory.dmp

Filesize
48KB

Download
memory/3484-12-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/3484-11-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing