asyncrat | 4583a1571f9b3b243e99e0f2bb56ba1492ae3371bce975af8ddede349a7be5bb

Analysis

max time kernel
95s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 04:27

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General

Target

ve.py.decoded1.exe
Size

344KB
MD5

df30248a64d62d5d7f368a280ca3b30f
SHA1

f7478cf4d97675956b98b577c473007b479df034
SHA256

4583a1571f9b3b243e99e0f2bb56ba1492ae3371bce975af8ddede349a7be5bb
SHA512

6f653b58f8852623a51f5a11f7fedaa9c22a275938ce9866b39b1d6e77add26b30bad937247b60af915365cfe3f4da3f9394623605e7217f517968d8d4b79485
SSDEEP

6144:Mw16Niu3DOHDOCJTAL8QvjCdMH9O1BNI:M06Niu38DOqTAL8QvgMo7I

Score

10^/10

asyncrat stealerium default collection discovery persistence privilege_escalation rat stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

91.92.247.210:3232

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 400 created 3444	400	ve.py.decoded1.exe	56

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3000-2-0x000001DC506F0000-0x000001DC50706000-memory.dmp	family_asyncrat

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
24	icanhazip.com
26	ip-api.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
1344	cmd.exe
3588	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	notepad.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	notepad.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
400	ve.py.decoded1.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe
3000	notepad.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
400	ve.py.decoded1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3000	notepad.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83
PID 400 wrote to memory of 3000	400	ve.py.decoded1.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3444
- C:\Users\Admin\AppData\Local\Temp\ve.py.decoded1.exe
  "C:\Users\Admin\AppData\Local\Temp\ve.py.decoded1.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of WriteProcessMemory
  PID:400
- C:\Windows\System32\notepad.exe
  C:\Windows\System32\notepad.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3000
- - C:\Windows\System32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:1344
  - - C:\Windows\System32\chcp.com
      chcp 65001
      4⤵
      PID:3944
  - - C:\Windows\System32\netsh.exe
      netsh wlan show profile
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Network Configuration Discovery: Wi-Fi Discovery
      PID:3588
  - - C:\Windows\System32\findstr.exe
      findstr All
      4⤵
      PID:4836
- - C:\Windows\System32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    PID:2760
  - - C:\Windows\System32\chcp.com
      chcp 65001
      4⤵
      PID:4816
  - - C:\Windows\System32\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      PID:1916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\f18aec123e3ad2eb82bba9f759abe055\Admin@PVMNUDVD_en-US\Browsers\Mozilla\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\f18aec123e3ad2eb82bba9f759abe055\Admin@PVMNUDVD_en-US\System\Process.txt

Filesize
4KB

MD5
8d401f20a548d744768794ae30d51924

SHA1
1b7ec34f98bea8ca54a57030868d870cf33744b2

SHA256
01f0ebf1dbb02a99930b4702620671343b2a7c09df95e73d20fb8d24566657b4

SHA512
043dbb24315d94b65fbb19fcb54a8274091523760ccae44809f13373690871c1daa03cfc5b2526a8216cdc0b2c20c952bb6d4bbdc3807958f636108f1fb7293e

Download Submit
C:\Users\Admin\AppData\Local\f18aec123e3ad2eb82bba9f759abe055\Admin@PVMNUDVD_en-US\System\Process.txt

Filesize
1KB

MD5
8ea6378ed3586b3c9477c376ea8390d1

SHA1
66fce5f6fb06f97ee049893a41fba840c6093092

SHA256
442dfdf5d8817e6e4bf0ac85006f29358016cf7fb4517bd425b0d3e3bbf32a60

SHA512
7bfd5219a42f7fe94fe9d199809807092895a342cd3bce1af15922a2b7a7d67bfa5f6fec5cc43be0f4c4d7f742d52cc23352b979937d253874905ec271000890

Download Submit
memory/3000-7-0x00007FFDD25B3000-0x00007FFDD25B5000-memory.dmp

Filesize
8KB

Download
memory/3000-14-0x000001DC68FA0000-0x000001DC68FBE000-memory.dmp

Filesize
120KB

Download
memory/3000-0-0x000001DC4EA90000-0x000001DC4EAAA000-memory.dmp

Filesize
104KB

Download
memory/3000-8-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-9-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-10-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-11-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-12-0x000001DC69500000-0x000001DC69576000-memory.dmp

Filesize
472KB

Download
memory/3000-13-0x000001DC69580000-0x000001DC69708000-memory.dmp

Filesize
1.5MB

Download
memory/3000-4-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-19-0x000001DC68F80000-0x000001DC68F8A000-memory.dmp

Filesize
40KB

Download
memory/3000-3-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-2-0x000001DC506F0000-0x000001DC50706000-memory.dmp

Filesize
88KB

Download
memory/3000-1-0x00007FFDD25B3000-0x00007FFDD25B5000-memory.dmp

Filesize
8KB

Download
memory/3000-157-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-159-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-170-0x000001DC69B80000-0x000001DC69BFA000-memory.dmp

Filesize
488KB

Download
memory/3000-205-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download
memory/3000-206-0x00007FFDD25B0000-0x00007FFDD3071000-memory.dmp

Filesize
10.8MB

Download