asyncrat | 65a0f2d03690ac43dfb2c3a758d4e021b1832478f443a8be03e8538a38c05352

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 02:26

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General

Target
65a0f2d03690ac43dfb2c3a758d4e021b1832478f443a8be03e8538a38c05352.ps1
Size 13.0MB
Sample240309-cxc1ssbf98
SHA256 65a0f2d03690ac43dfb2c3a758d4e021b1832478f443a8be03e8538a38c05352
MD5 3fe2fb1e371d879f826b53ff9f2e21ce
SHA1 d7646c760d45b8df26a4d2fee4cfb5dde21d861d
SHA512 c84dcfd551d3e4ba0e5c57a79e4074ef0dbed709e53f34e0ea02c38fcf92de9f150f11363a84c74127c5f13b43e65a5478b5ae05a582a6e2347b87593d61a468
SSDEEP 49152:Z4Whi6ikPpLUuqA96t73Qn0KxCmUlPCflJztD:
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat stealerium default collection rat stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

91.92.250.61:3232

Mutex

Rtn7hyuAnFΔ贼艾尺弗Θcm3比ק

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 1600 created 3356	1600	powershell.exe	57

Async RAT payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/4860-21-0x0000022403A10000-0x0000022403A26000-memory.dmp	family_asyncrat
behavioral2/memory/4860-23-0x000002241C3D0000-0x000002241C3E0000-memory.dmp	family_asyncrat

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects executables attemping to enumerate video devices using WMI 2 IoCs

resource	yara_rule
behavioral2/memory/4860-21-0x0000022403A10000-0x0000022403A26000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
behavioral2/memory/4860-23-0x000002241C3D0000-0x000002241C3E0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice

Detects executables containing the string DcRatBy 2 IoCs

resource	yara_rule
behavioral2/memory/4860-21-0x0000022403A10000-0x0000022403A26000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy
behavioral2/memory/4860-23-0x000002241C3D0000-0x000002241C3E0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy

Detects executables manipulated with Fody 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_EXE_Packed_Fody

Detects executables referencing Discord tokens regular expressions 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Discord_Regex

Detects executables referencing credit card regular expressions 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_CC_Regex

Detects executables referencing many VPN software clients. Observed in infosteslers 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_VPN

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables with interest in wireless interface using netsh 1 IoCs

resource	yara_rule
behavioral2/memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WirelessNetReccon

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\15.0\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
59	icanhazip.com
62	ip-api.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.

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 29 IoCs

pid	Process
1600	powershell.exe
1600	powershell.exe
1600	powershell.exe
1600	powershell.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe
4860	notepad.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
1600	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	powershell.exe
Token: SeDebugPrivilege	4860	notepad.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107
PID 1600 wrote to memory of 4860	1600	powershell.exe	107

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3356
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\65a0f2d03690ac43dfb2c3a758d4e021b1832478f443a8be03e8538a38c05352.ps1
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1600
- 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:4860
- - C:\Windows\System32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    PID:1556
  - - C:\Windows\System32\chcp.com
      chcp 65001
      4⤵
      PID:1640
  - - C:\Windows\System32\netsh.exe
      netsh wlan show profile
      4⤵
      PID:4884
  - - C:\Windows\System32\findstr.exe
      findstr All
      4⤵
      PID:2440
- - C:\Windows\System32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    PID:3616
  - - C:\Windows\System32\chcp.com
      chcp 65001
      4⤵
      PID:4804
  - - C:\Windows\System32\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      PID:4576

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1400 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:3160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Bookmarks.txt

Path C:\Users\Admin\AppData\Local\1be0f094029f23c1b391c1aef01b0888\Admin@OAILVCNY_en-US\Browsers\Mozilla\Firefox\Bookmarks.txt
Size 105B
SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
MD5 2e9d094dda5cdc3ce6519f75943a4ff4
SHA1 5d989b4ac8b699781681fe75ed9ef98191a5096c
SHA512 d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7
MD5 SHA1 SHA512

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Process.txt

Path C:\Users\Admin\AppData\Local\1be0f094029f23c1b391c1aef01b0888\Admin@OAILVCNY_en-US\System\Process.txt
Size 1KB
SHA256 7bcb6f6a02659cc12e80d2186faff6744fe51dda32845191fc0e05ecc6515157
MD5 7346a4771752f7207e90d1b0f21b31b1
SHA1 c5800176c30e050460cdd5d568bdbf5b88c1cd63
SHA512 398fe69d6ec9dc870042c3e2435a3360f0ccaa9e80931b04c598ced709c9649c68c9b1f0c3aa32111ca293cbd939c14753967ec5c65b718dd17bce8752f10524
MD5 SHA1 SHA512

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Process.txt

Path C:\Users\Admin\AppData\Local\1be0f094029f23c1b391c1aef01b0888\Admin@OAILVCNY_en-US\System\Process.txt
Size 3KB
SHA256 2cf2c274f4ac619edb68ca95cd2efc97042e3a3cdc18983c9cbca324e7a0f3d9
MD5 9ba7137379244e79964882904f15b835
SHA1 506f9f1fe80fabc0396785990d2a4f538c499e8e
SHA512 755a3ca075cfb1f7584784dbd4f998565e735b2c2d65efc2a6f7f3ed3faeb9e34536690c6889119f1481de8f69bed8321e52f8380c9bad12289fb309662d7172
MD5 SHA1 SHA512

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Process.txt

Path C:\Users\Admin\AppData\Local\1be0f094029f23c1b391c1aef01b0888\Admin@OAILVCNY_en-US\System\Process.txt
Size 3KB
SHA256 256136b4a845cab5f509817e543e3cf56db0199520d27ec01b1d427b47140a0d
MD5 9ed8ffe8418b776558508a2a7d12e06b
SHA1 7cf67efd05aa1886467e5073cde9f9005bdd9852
SHA512 f848db6791d33c9e8b7b165045c5754d6c45cdbe9f91e84ff694df4bc562bb310f5e43e6df8fb2e6ceee7986cb592e7f1bf9abc09e8a4ed1c61503db8c4630df
MD5 SHA1 SHA512

Submit Download

Process.txt

Path C:\Users\Admin\AppData\Local\1be0f094029f23c1b391c1aef01b0888\Admin@OAILVCNY_en-US\System\Process.txt
Size 4KB
SHA256 cf90d667c80eb82887cb285b462982f16cef28c8ed4ed2ca9b7d0b73e2854153
MD5 86aa27d347875becab9dd0727af0afa2
SHA1 da0f0cb05dfc76c957bc361e1ea86508cdcb46ac
SHA512 b6f3a6fa5b2b9a7dbd5f15bf737c9a1517bc18566816d41c74a7595774c9eb1500a102977bc47181093e5caf67760bd86e06fbc075c00704b4de7b66fe2b4be4
SSDEEP 48:zIg6gm6KtzV9YBqznDgaC23Zzauy4p+b1u1CtO5bcwgDbp:zIr6yV9Yc0aC23Faun+BLtUwVh
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_a3noq1ov.3kr.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_a3noq1ov.3kr.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/1600-18-0x00000182793A0000-0x00000182793FB000-memory.dmp

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memory/1600-28-0x00000182793A0000-0x00000182793FB000-memory.dmp

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memory/1600-16-0x00000182767F0000-0x000001827684B000-memory.dmp

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memory/1600-15-0x0000018276900000-0x0000018276910000-memory.dmp

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memory/1600-17-0x0000018276900000-0x0000018276910000-memory.dmp

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memory/1600-6-0x0000018278F90000-0x0000018278FB2000-memory.dmp

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memory/1600-10-0x00007FF97B240000-0x00007FF97BD01000-memory.dmp

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memory/1600-11-0x0000018276900000-0x0000018276910000-memory.dmp

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memory/1600-14-0x0000018276900000-0x0000018276910000-memory.dmp

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memory/1600-12-0x0000018276900000-0x0000018276910000-memory.dmp

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memory/1600-13-0x00007FF97B240000-0x00007FF97BD01000-memory.dmp

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memory/1600-27-0x00007FF97B240000-0x00007FF97BD01000-memory.dmp

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memory/4860-22-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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memory/4860-21-0x0000022403A10000-0x0000022403A26000-memory.dmp

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memory/4860-32-0x000002241D300000-0x000002241D376000-memory.dmp

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memory/4860-33-0x000002241D380000-0x000002241D508000-memory.dmp

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memory/4860-34-0x000002241C2F0000-0x000002241C30E000-memory.dmp

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memory/4860-39-0x0000022403AD0000-0x0000022403ADA000-memory.dmp

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memory/4860-24-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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memory/4860-23-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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memory/4860-20-0x00007FF97B240000-0x00007FF97BD01000-memory.dmp

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memory/4860-29-0x00007FF99AA90000-0x00007FF99AC85000-memory.dmp

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memory/4860-19-0x0000022401ED0000-0x0000022401EE6000-memory.dmp

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memory/4860-193-0x00007FF97B240000-0x00007FF97BD01000-memory.dmp

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memory/4860-194-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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memory/4860-202-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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memory/4860-205-0x000002241DA50000-0x000002241DACA000-memory.dmp

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memory/4860-236-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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memory/4860-241-0x00007FF99AA90000-0x00007FF99AC85000-memory.dmp

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memory/4860-242-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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memory/4860-243-0x000002241C3D0000-0x000002241C3E0000-memory.dmp

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