asyncrat | e1df166da9ba07ad1a5b1a105eac585f04ea67a023cca16f54bdbfa97bb39dd2

Analysis

max time kernel
10s
max time network
0s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
31-08-2024 20:30

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General

Target

flash paypal.exe
Size

175KB
MD5

0d421a91631c3c2cae6533bd32e2e595
SHA1

9113e54ec2b864a4845cb14930aa60666e1a596a
SHA256

e1df166da9ba07ad1a5b1a105eac585f04ea67a023cca16f54bdbfa97bb39dd2
SHA512

1d677726303cb667c01d8d340f5632667c1929dd5965e7008eab2d1755a02823cff1f583ece6987085ed1eb28429afa2592e5f0b6b63a3bb8e9c17d77c69d8ad
SSDEEP

3072:Ue8oX8Sb5KcXrtkkXmf/bDsvqtU+lLToChAP0UZ0b2gTIwAqE+Wpor:9Xtb5KcXr7XmfgqtjhAxZ0b2h

Score

10^/10

asyncrat stormkitty default credential_access discovery persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6381067446:AAEZEWH8wbF7Q1Kou81_S0sE6VwJZGJKneM/sendMessage?chat_id=5901231421

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/2296-1-0x0000000000AC0000-0x0000000000AF2000-memory.dmp	family_stormkitty

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Drops desktop.ini file(s) 8 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	flash paypal.exe
File created	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	flash paypal.exe
File opened for modification	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	flash paypal.exe
File created	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	flash paypal.exe
File opened for modification	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	flash paypal.exe
File created	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	flash paypal.exe
File opened for modification	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	flash paypal.exe
File created	C:\Users\Admin\AppData\Local\192e8e61bfddd42c642afd129c96f86a\Admin@PSBQWFYT_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	flash paypal.exe

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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	flash paypal.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
1464	cmd.exe
2888	netsh.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2296	flash paypal.exe
2296	flash paypal.exe
2296	flash paypal.exe
2296	flash paypal.exe
2296	flash paypal.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	flash paypal.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 1464	2296	flash paypal.exe	31
PID 2296 wrote to memory of 1464	2296	flash paypal.exe	31
PID 2296 wrote to memory of 1464	2296	flash paypal.exe	31
PID 2296 wrote to memory of 1464	2296	flash paypal.exe	31
PID 1464 wrote to memory of 2884	1464	cmd.exe	33
PID 1464 wrote to memory of 2884	1464	cmd.exe	33
PID 1464 wrote to memory of 2884	1464	cmd.exe	33
PID 1464 wrote to memory of 2884	1464	cmd.exe	33
PID 1464 wrote to memory of 2888	1464	cmd.exe	34
PID 1464 wrote to memory of 2888	1464	cmd.exe	34
PID 1464 wrote to memory of 2888	1464	cmd.exe	34
PID 1464 wrote to memory of 2888	1464	cmd.exe	34
PID 1464 wrote to memory of 712	1464	cmd.exe	35
PID 1464 wrote to memory of 712	1464	cmd.exe	35
PID 1464 wrote to memory of 712	1464	cmd.exe	35
PID 1464 wrote to memory of 712	1464	cmd.exe	35
PID 2296 wrote to memory of 2748	2296	flash paypal.exe	36
PID 2296 wrote to memory of 2748	2296	flash paypal.exe	36
PID 2296 wrote to memory of 2748	2296	flash paypal.exe	36
PID 2296 wrote to memory of 2748	2296	flash paypal.exe	36
PID 2748 wrote to memory of 2184	2748	cmd.exe	38
PID 2748 wrote to memory of 2184	2748	cmd.exe	38
PID 2748 wrote to memory of 2184	2748	cmd.exe	38
PID 2748 wrote to memory of 2184	2748	cmd.exe	38
PID 2748 wrote to memory of 1684	2748	cmd.exe	39
PID 2748 wrote to memory of 1684	2748	cmd.exe	39
PID 2748 wrote to memory of 1684	2748	cmd.exe	39
PID 2748 wrote to memory of 1684	2748	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\flash paypal.exe
"C:\Users\Admin\AppData\Local\Temp\flash paypal.exe"
1⤵
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Wi-Fi Discovery
  - Suspicious use of WriteProcessMemory
  PID:1464
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2884
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:2888
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:712
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2184
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1684

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2296-0-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

Filesize
4KB

Download
memory/2296-1-0x0000000000AC0000-0x0000000000AF2000-memory.dmp

Filesize
200KB

Download
memory/2296-2-0x0000000074AE0000-0x00000000751CE000-memory.dmp

Filesize
6.9MB

Download
memory/2296-72-0x0000000074AE0000-0x00000000751CE000-memory.dmp

Filesize
6.9MB

Download
memory/2296-76-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

Filesize
4KB

Download
memory/2296-77-0x0000000074AE0000-0x00000000751CE000-memory.dmp

Filesize
6.9MB

Download