asyncrat | e03f6c4f04ef25238b6d7c8a447555402caa7d1ddb1803bbb6cbcb889cab1135

Analysis

max time kernel
149s
max time network
137s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
21/12/2022, 01:43

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General

Target

09ee64f8bb9aebb6a09da283e34c528a.exe
Size

232KB
MD5

09ee64f8bb9aebb6a09da283e34c528a
SHA1

3b55fff91903daf89131c1ee51653c7cf4027d18
SHA256

e03f6c4f04ef25238b6d7c8a447555402caa7d1ddb1803bbb6cbcb889cab1135
SHA512

e12a387b578dc1b1307e9bc7fb43e9da5b4a10106958fb329e171f8851767911814e74e2c7468460d00a9adf1691430be28439a087e12383a16a27b8e490aebf
SSDEEP

6144:bDubaBBOBIIj6HLLYLCYJqvc1DMaJ+2+AHbEr1peYGrNNaR0NUg:ubaj9Gk1pLZi

Score

10^/10

asyncrat stormkitty default 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/bot5841906429:AAHSe6la_NGlt9rOSoOwJAowwZ6H54N0dWA/sendMessage?chat_id=5816850831

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.
rat asyncrat
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/1220-54-0x0000000000A30000-0x0000000000A70000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/1220-54-0x0000000000A30000-0x0000000000A70000-memory.dmp	asyncrat

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
T1081

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\87e192321bff5e78c29cab0ac3a6eee0\Admin@RYNKSFQE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	09ee64f8bb9aebb6a09da283e34c528a.exe
File created	C:\Users\Admin\AppData\Local\87e192321bff5e78c29cab0ac3a6eee0\Admin@RYNKSFQE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	09ee64f8bb9aebb6a09da283e34c528a.exe
File created	C:\Users\Admin\AppData\Local\87e192321bff5e78c29cab0ac3a6eee0\Admin@RYNKSFQE_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	09ee64f8bb9aebb6a09da283e34c528a.exe
File created	C:\Users\Admin\AppData\Local\87e192321bff5e78c29cab0ac3a6eee0\Admin@RYNKSFQE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	09ee64f8bb9aebb6a09da283e34c528a.exe
File opened for modification	C:\Users\Admin\AppData\Local\87e192321bff5e78c29cab0ac3a6eee0\Admin@RYNKSFQE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	09ee64f8bb9aebb6a09da283e34c528a.exe

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
3	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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	09ee64f8bb9aebb6a09da283e34c528a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	09ee64f8bb9aebb6a09da283e34c528a.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1364	schtasks.exe

Suspicious behavior: EnumeratesProcesses 53 IoCs

pid	Process
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe
1220	09ee64f8bb9aebb6a09da283e34c528a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1220	09ee64f8bb9aebb6a09da283e34c528a.exe
Token: SeDebugPrivilege	1220	09ee64f8bb9aebb6a09da283e34c528a.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 288	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	28
PID 1220 wrote to memory of 288	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	28
PID 1220 wrote to memory of 288	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	28
PID 1220 wrote to memory of 288	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	28
PID 288 wrote to memory of 904	288	cmd.exe	30
PID 288 wrote to memory of 904	288	cmd.exe	30
PID 288 wrote to memory of 904	288	cmd.exe	30
PID 288 wrote to memory of 904	288	cmd.exe	30
PID 288 wrote to memory of 1844	288	cmd.exe	31
PID 288 wrote to memory of 1844	288	cmd.exe	31
PID 288 wrote to memory of 1844	288	cmd.exe	31
PID 288 wrote to memory of 1844	288	cmd.exe	31
PID 288 wrote to memory of 1544	288	cmd.exe	32
PID 288 wrote to memory of 1544	288	cmd.exe	32
PID 288 wrote to memory of 1544	288	cmd.exe	32
PID 288 wrote to memory of 1544	288	cmd.exe	32
PID 1220 wrote to memory of 1100	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	33
PID 1220 wrote to memory of 1100	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	33
PID 1220 wrote to memory of 1100	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	33
PID 1220 wrote to memory of 1100	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	33
PID 1100 wrote to memory of 1580	1100	cmd.exe	35
PID 1100 wrote to memory of 1580	1100	cmd.exe	35
PID 1100 wrote to memory of 1580	1100	cmd.exe	35
PID 1100 wrote to memory of 1580	1100	cmd.exe	35
PID 1100 wrote to memory of 1692	1100	cmd.exe	36
PID 1100 wrote to memory of 1692	1100	cmd.exe	36
PID 1100 wrote to memory of 1692	1100	cmd.exe	36
PID 1100 wrote to memory of 1692	1100	cmd.exe	36
PID 1220 wrote to memory of 1364	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	37
PID 1220 wrote to memory of 1364	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	37
PID 1220 wrote to memory of 1364	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	37
PID 1220 wrote to memory of 1364	1220	09ee64f8bb9aebb6a09da283e34c528a.exe	37

C:\Users\Admin\AppData\Local\Temp\09ee64f8bb9aebb6a09da283e34c528a.exe
"C:\Users\Admin\AppData\Local\Temp\09ee64f8bb9aebb6a09da283e34c528a.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:288
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:904
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:1844
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:1544
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1100
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:1580
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:1692
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Admin\AppData\Local\Temp\09ee64f8bb9aebb6a09da283e34c528a.exe"
  2⤵
  - Creates scheduled task(s)
  PID:1364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1220-54-0x0000000000A30000-0x0000000000A70000-memory.dmp

Filesize
256KB

Download
memory/1220-55-0x00000000765B1000-0x00000000765B3000-memory.dmp

Filesize
8KB

Download
memory/1220-56-0x0000000000875000-0x0000000000886000-memory.dmp

Filesize
68KB

Download
memory/1220-66-0x0000000000875000-0x0000000000886000-memory.dmp

Filesize
68KB

Download