asyncrat | a3ce8f441abbbea97d7f9bd4fe968cc05612e4810c91c5036e84ad53f1a3738d

General

Target

0x00060000000231c7-271.exe
Size

232KB
MD5

b322016149eb06ae727524dc17c2f631
SHA1

890c2ebfd66f9bc72fc5e68ec667f25c74fae633
SHA256

a3ce8f441abbbea97d7f9bd4fe968cc05612e4810c91c5036e84ad53f1a3738d
SHA512

eb1da37182dfd279e39bf406310469b542d90a55b18599dd4e53f51ee76e0e37de88cde8d4cdfb3b9759e83f385fb38338f2ba120f313bf306c9d18df47a5225
SSDEEP

6144:kDubaBBOBIIj6HLLYLCYJqvc1Dqqk0AonP1HboHmw0bzlELV8SMad:1baZ/2UHa/lEpTMa

Score

10^/10

asyncrat stormkitty default rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

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

Processes:

resource	yara_rule
behavioral2/memory/2812-133-0x00000000002E0000-0x0000000000320000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2812-133-0x00000000002E0000-0x0000000000320000-memory.dmp	asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

0x00060000000231c7-271.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	0x00060000000231c7-271.exe

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) 9 IoCs

Processes:

0x00060000000231c7-271.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	0x00060000000231c7-271.exe
File opened for modification	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	0x00060000000231c7-271.exe
File opened for modification	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	0x00060000000231c7-271.exe
File opened for modification	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	0x00060000000231c7-271.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.

Processes:

flow ioc

31 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

flow	ioc
31	icanhazip.com

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

Processes:

0x00060000000231c7-271.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	0x00060000000231c7-271.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	0x00060000000231c7-271.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

Processes:

schtasks.exe

pid process

3180 schtasks.exe

pid	process
3180	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

0x00060000000231c7-271.exe

pid	process
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe
2812	0x00060000000231c7-271.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0x00060000000231c7-271.exe

description pid process

Token: SeDebugPrivilege 2812 0x00060000000231c7-271.exe
Token: SeDebugPrivilege 2812 0x00060000000231c7-271.exe

description	pid	process
Token: SeDebugPrivilege	2812	0x00060000000231c7-271.exe
Token: SeDebugPrivilege	2812	0x00060000000231c7-271.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

0x00060000000231c7-271.execmd.execmd.exe

description	pid	process	target process
PID 2812 wrote to memory of 3976	2812	0x00060000000231c7-271.exe	cmd.exe
PID 2812 wrote to memory of 3976	2812	0x00060000000231c7-271.exe	cmd.exe
PID 2812 wrote to memory of 3976	2812	0x00060000000231c7-271.exe	cmd.exe
PID 3976 wrote to memory of 5112	3976	cmd.exe	chcp.com
PID 3976 wrote to memory of 5112	3976	cmd.exe	chcp.com
PID 3976 wrote to memory of 5112	3976	cmd.exe	chcp.com
PID 3976 wrote to memory of 4316	3976	cmd.exe	netsh.exe
PID 3976 wrote to memory of 4316	3976	cmd.exe	netsh.exe
PID 3976 wrote to memory of 4316	3976	cmd.exe	netsh.exe
PID 3976 wrote to memory of 4612	3976	cmd.exe	findstr.exe
PID 3976 wrote to memory of 4612	3976	cmd.exe	findstr.exe
PID 3976 wrote to memory of 4612	3976	cmd.exe	findstr.exe
PID 2812 wrote to memory of 4660	2812	0x00060000000231c7-271.exe	cmd.exe
PID 2812 wrote to memory of 4660	2812	0x00060000000231c7-271.exe	cmd.exe
PID 2812 wrote to memory of 4660	2812	0x00060000000231c7-271.exe	cmd.exe
PID 4660 wrote to memory of 4764	4660	cmd.exe	chcp.com
PID 4660 wrote to memory of 4764	4660	cmd.exe	chcp.com
PID 4660 wrote to memory of 4764	4660	cmd.exe	chcp.com
PID 4660 wrote to memory of 3780	4660	cmd.exe	netsh.exe
PID 4660 wrote to memory of 3780	4660	cmd.exe	netsh.exe
PID 4660 wrote to memory of 3780	4660	cmd.exe	netsh.exe
PID 2812 wrote to memory of 3180	2812	0x00060000000231c7-271.exe	schtasks.exe
PID 2812 wrote to memory of 3180	2812	0x00060000000231c7-271.exe	schtasks.exe
PID 2812 wrote to memory of 3180	2812	0x00060000000231c7-271.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\0x00060000000231c7-271.exe
"C:\Users\Admin\AppData\Local\Temp\0x00060000000231c7-271.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2812

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
2⤵
- Suspicious use of WriteProcessMemory
PID:3976

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:5112

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
3⤵
PID:4316

C:\Windows\SysWOW64\findstr.exe
findstr All
3⤵
PID:4612

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
2⤵
- Suspicious use of WriteProcessMemory
PID:4660

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:4764

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
3⤵
PID:3780

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\0x00060000000231c7-271.exe"
2⤵
- Creates scheduled task(s)
PID:3180

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\7f94cf484262dbd4dbe5484c24d3bd15\msgid.dat
Filesize
4B

MD5
8b6a80c3cf2cbd5f967063618dc54f39

SHA1
51b552d234204ad2ede3f455ec58883ef62ce236

SHA256
61697e084834fbb2cf9ceebd945b42bdb9cd7cee96e0eaeb3df2232ccc95a3f0

SHA512
76000446d9de699a79859e448c80e55902f18a49f1020e27f43c1af06d1358ff6f69438aa2a8fbe6f9b1e6c0d13d5bdce95f31ab758ddb96b4e614418e21a98e

Download Submit
C:\Users\Admin\AppData\Local\a2d9d8ccf87f1c16a0350030e81cad89\Admin@WEYPCEWN_en-US\System\Process.txt
Filesize
4KB

MD5
39487ae4fe06f5ce31446b5d58f11aa1

SHA1
71a36ca9c63a48527b24c67956722c65be5620ff

SHA256
aaca85d292080bed996cb36c7b4f9f7b76881487a7dc035e48d4ecc8c8c27fd8

SHA512
468344bcdb6d69a59ff1d673dea32dad32dea403c9c72c32a001e4e5225a38782bb2699bcc05783d265135ba8ccba9cbc11cc8b0abc78ed753c6a07b8cc07f04

Download Submit
memory/2812-135-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/2812-136-0x00000000059D0000-0x0000000005F74000-memory.dmp

Filesize
5.6MB

Download
memory/2812-137-0x0000000005500000-0x0000000005592000-memory.dmp

Filesize
584KB

Download
memory/2812-197-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/2812-133-0x00000000002E0000-0x0000000000320000-memory.dmp

Filesize
256KB

Download
memory/2812-282-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/2812-285-0x0000000005990000-0x000000000599A000-memory.dmp

Filesize
40KB

Download
memory/2812-134-0x0000000004CB0000-0x0000000004D16000-memory.dmp

Filesize
408KB

Download
memory/2812-291-0x0000000006E90000-0x0000000006EA2000-memory.dmp

Filesize
72KB

Download
memory/2812-315-0x0000000004D40000-0x0000000004D50000-memory.dmp

Filesize
64KB

Download
memory/2812-316-0x00000000077E0000-0x00000000077EA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads