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
behavioral1/memory/1324-54-0x0000000000210000-0x0000000000250000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1324-54-0x0000000000210000-0x0000000000250000-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

Processes:

0x00060000000231c7-271.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\3f917fb35d33e6be76ac26a0ded5ada5\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	0x00060000000231c7-271.exe
File opened for modification	C:\Users\Admin\AppData\Local\3f917fb35d33e6be76ac26a0ded5ada5\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\3f917fb35d33e6be76ac26a0ded5ada5\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\3f917fb35d33e6be76ac26a0ded5ada5\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	0x00060000000231c7-271.exe
File created	C:\Users\Admin\AppData\Local\3f917fb35d33e6be76ac26a0ded5ada5\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\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

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

flow	ioc
3	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

1824 schtasks.exe

pid	process
1824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 63 IoCs

Processes:

0x00060000000231c7-271.exe

pid	process
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe
1324	0x00060000000231c7-271.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0x00060000000231c7-271.exe

description pid process

Token: SeDebugPrivilege 1324 0x00060000000231c7-271.exe
Token: SeDebugPrivilege 1324 0x00060000000231c7-271.exe

description	pid	process
Token: SeDebugPrivilege	1324	0x00060000000231c7-271.exe
Token: SeDebugPrivilege	1324	0x00060000000231c7-271.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

0x00060000000231c7-271.execmd.execmd.exe

description	pid	process	target process
PID 1324 wrote to memory of 2000	1324	0x00060000000231c7-271.exe	cmd.exe
PID 1324 wrote to memory of 2000	1324	0x00060000000231c7-271.exe	cmd.exe
PID 1324 wrote to memory of 2000	1324	0x00060000000231c7-271.exe	cmd.exe
PID 1324 wrote to memory of 2000	1324	0x00060000000231c7-271.exe	cmd.exe
PID 2000 wrote to memory of 772	2000	cmd.exe	chcp.com
PID 2000 wrote to memory of 772	2000	cmd.exe	chcp.com
PID 2000 wrote to memory of 772	2000	cmd.exe	chcp.com
PID 2000 wrote to memory of 772	2000	cmd.exe	chcp.com
PID 2000 wrote to memory of 1292	2000	cmd.exe	netsh.exe
PID 2000 wrote to memory of 1292	2000	cmd.exe	netsh.exe
PID 2000 wrote to memory of 1292	2000	cmd.exe	netsh.exe
PID 2000 wrote to memory of 1292	2000	cmd.exe	netsh.exe
PID 2000 wrote to memory of 688	2000	cmd.exe	findstr.exe
PID 2000 wrote to memory of 688	2000	cmd.exe	findstr.exe
PID 2000 wrote to memory of 688	2000	cmd.exe	findstr.exe
PID 2000 wrote to memory of 688	2000	cmd.exe	findstr.exe
PID 1324 wrote to memory of 1636	1324	0x00060000000231c7-271.exe	cmd.exe
PID 1324 wrote to memory of 1636	1324	0x00060000000231c7-271.exe	cmd.exe
PID 1324 wrote to memory of 1636	1324	0x00060000000231c7-271.exe	cmd.exe
PID 1324 wrote to memory of 1636	1324	0x00060000000231c7-271.exe	cmd.exe
PID 1636 wrote to memory of 1872	1636	cmd.exe	chcp.com
PID 1636 wrote to memory of 1872	1636	cmd.exe	chcp.com
PID 1636 wrote to memory of 1872	1636	cmd.exe	chcp.com
PID 1636 wrote to memory of 1872	1636	cmd.exe	chcp.com
PID 1636 wrote to memory of 1504	1636	cmd.exe	netsh.exe
PID 1636 wrote to memory of 1504	1636	cmd.exe	netsh.exe
PID 1636 wrote to memory of 1504	1636	cmd.exe	netsh.exe
PID 1636 wrote to memory of 1504	1636	cmd.exe	netsh.exe
PID 1324 wrote to memory of 1824	1324	0x00060000000231c7-271.exe	schtasks.exe
PID 1324 wrote to memory of 1824	1324	0x00060000000231c7-271.exe	schtasks.exe
PID 1324 wrote to memory of 1824	1324	0x00060000000231c7-271.exe	schtasks.exe
PID 1324 wrote to memory of 1824	1324	0x00060000000231c7-271.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\0x00060000000231c7-271.exe
"C:\Users\Admin\AppData\Local\Temp\0x00060000000231c7-271.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
2⤵
- Suspicious use of WriteProcessMemory
PID:2000

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:772

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
3⤵
PID:1292

C:\Windows\SysWOW64\findstr.exe
findstr All
3⤵
PID:688

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
2⤵
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:1872

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
3⤵
PID:1504

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:1824

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

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\3f917fb35d33e6be76ac26a0ded5ada5\Admin@THEQWNRW_en-US\Browsers\Firefox\Bookmarks.txt
Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\3f917fb35d33e6be76ac26a0ded5ada5\msgid.dat
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1324-54-0x0000000000210000-0x0000000000250000-memory.dmp

Filesize
256KB

Download
memory/1324-55-0x0000000004980000-0x00000000049C0000-memory.dmp

Filesize
256KB

Download
memory/1324-123-0x0000000004980000-0x00000000049C0000-memory.dmp

Filesize
256KB

Download
memory/1324-126-0x0000000004980000-0x00000000049C0000-memory.dmp

Filesize
256KB

Download
memory/1324-132-0x0000000004980000-0x00000000049C0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads