asyncrat | c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 20:01

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General

Target

ChromeSetup.exe
Size

930KB
MD5

de04168171981a90f56a126ec055ba19
SHA1

766704b6e12a7db436663eb7e287160e736979b7
SHA256

c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2
SHA512

784f4b6954a56e2f09f3b3f1d29ae6d1ad14c814f3aad6391972654c398c68bcf7745902c368cbfcb8778f16cb33aa62210c937d48e6d8876d567fcd2a657013
SSDEEP

12288:lS6vgPZN3V4smWPc7H3/BPyf13SFyIz8VOHa8ASSMCFFi0mWWaos2Z8kM+:06vqtcDZPyf13WyODSMyc08aoz8kM

Score

10^/10

asyncrat nightingale collection credential_access discovery execution rat stealer

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat
Nightingale family
nightingale
Nightingale stealer
Nightingale stealer is an information stealer written in C#.
stealer nightingale
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1276	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
39	pastebin.com
40	pastebin.com

Looks up external IP address via web service 1 IoCs

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

flow	ioc
43	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 64 set thread context of 2528	64	ChromeSetup.exe	96

System Location Discovery: System Language Discovery 1 TTPs 4 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ChromeSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
64	ChromeSetup.exe
64	ChromeSetup.exe
64	ChromeSetup.exe
64	ChromeSetup.exe
64	ChromeSetup.exe
1276	powershell.exe
1276	powershell.exe
3248	powershell.exe
3248	powershell.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	64	ChromeSetup.exe
Token: SeDebugPrivilege	2528	MSBuild.exe
Token: SeDebugPrivilege	1276	powershell.exe
Token: SeDebugPrivilege	3248	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 5064	64	ChromeSetup.exe	93
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 64 wrote to memory of 2528	64	ChromeSetup.exe	96
PID 2528 wrote to memory of 1276	2528	MSBuild.exe	107
PID 2528 wrote to memory of 1276	2528	MSBuild.exe	107
PID 2528 wrote to memory of 1276	2528	MSBuild.exe	107
PID 2528 wrote to memory of 3248	2528	MSBuild.exe	109
PID 2528 wrote to memory of 3248	2528	MSBuild.exe	109
PID 2528 wrote to memory of 3248	2528	MSBuild.exe	109

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\ChromeSetup.exe
"C:\Users\Admin\AppData\Local\Temp\ChromeSetup.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:64
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:5064
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2528
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1276
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-ItemPropertyValue -Path HKLM:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3248

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
1KB

MD5
def65711d78669d7f8e69313be4acf2e

SHA1
6522ebf1de09eeb981e270bd95114bc69a49cda6

SHA256
aa1c97cdbce9a848f1db2ad483f19caa535b55a3a1ef2ad1260e0437002bc82c

SHA512
05b2f9cd9bc3b46f52fded320b68e05f79b2b3ceaeb13e5d87ae9f8cd8e6c90bbb4ffa4da8192c2bfe0f58826cabff2e99e7c5cc8dd47037d4eb7bfc6f2710a7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
e0eb507bd6bd3efbbb44099735280f25

SHA1
febf4e1dce7c7becc930666597da386de241a1b2

SHA256
8739824974552525a13e9f9fa834f3414e2e7e5b59b7d0eca5b2c5d25cd9ebfc

SHA512
a1698a52e6b61851b7e9e9b30ffa8ac8a0c11bb8537450a9119036c9f2e582173bfd681ef7aca89a1984f0c84a1b31154310ad1f1ed6d3801a19de0acafa7af2

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gmgrdmov.mh1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/64-8-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/64-10-0x0000000006DA0000-0x0000000006DA6000-memory.dmp

Filesize
24KB

Download
memory/64-5-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/64-6-0x0000000005C70000-0x0000000006214000-memory.dmp

Filesize
5.6MB

Download
memory/64-7-0x0000000005920000-0x000000000592A000-memory.dmp

Filesize
40KB

Download
memory/64-0-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/64-9-0x0000000007220000-0x000000000723A000-memory.dmp

Filesize
104KB

Download
memory/64-4-0x00000000051E0000-0x0000000005224000-memory.dmp

Filesize
272KB

Download
memory/64-11-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/64-12-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/64-13-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/64-3-0x0000000005320000-0x00000000053BC000-memory.dmp

Filesize
624KB

Download
memory/64-2-0x0000000005280000-0x0000000005312000-memory.dmp

Filesize
584KB

Download
memory/64-17-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/64-1-0x0000000000F90000-0x000000000107E000-memory.dmp

Filesize
952KB

Download
memory/1276-32-0x0000000005840000-0x0000000005862000-memory.dmp

Filesize
136KB

Download
memory/1276-33-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/1276-51-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1276-48-0x0000000006D40000-0x0000000006D62000-memory.dmp

Filesize
136KB

Download
memory/1276-47-0x0000000006CF0000-0x0000000006D0A000-memory.dmp

Filesize
104KB

Download
memory/1276-46-0x0000000006D70000-0x0000000006E06000-memory.dmp

Filesize
600KB

Download
memory/1276-27-0x0000000002EF0000-0x0000000002F26000-memory.dmp

Filesize
216KB

Download
memory/1276-28-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1276-30-0x0000000005B80000-0x00000000061A8000-memory.dmp

Filesize
6.2MB

Download
memory/1276-31-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1276-29-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1276-45-0x00000000068B0000-0x00000000068FC000-memory.dmp

Filesize
304KB

Download
memory/1276-44-0x0000000006810000-0x000000000682E000-memory.dmp

Filesize
120KB

Download
memory/1276-34-0x00000000061E0000-0x0000000006534000-memory.dmp

Filesize
3.3MB

Download
memory/2528-18-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2528-21-0x0000000006450000-0x00000000064B6000-memory.dmp

Filesize
408KB

Download
memory/2528-22-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2528-26-0x0000000006FC0000-0x0000000006FDE000-memory.dmp

Filesize
120KB

Download
memory/2528-25-0x0000000006F40000-0x0000000006F80000-memory.dmp

Filesize
256KB

Download
memory/2528-24-0x0000000007030000-0x00000000070A6000-memory.dmp

Filesize
472KB

Download
memory/2528-23-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2528-16-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2528-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download