asyncrat | 8dba6450d3ff2ac99d519d8f75affdcbb25bf5743e265246e0bfedd60a325a28

General

Target

QuotePDF.vbs
Size

444KB
MD5

d9f992f8020aa3a3bf5053657ae2b4e1
SHA1

04862f6295b1f63466eac99adbe9f28f678b4aab
SHA256

8dba6450d3ff2ac99d519d8f75affdcbb25bf5743e265246e0bfedd60a325a28
SHA512

1f632773295db7dd8a30370a66f29bbcd10485f0483b616ae6e736020d6144cb345e992cd6101da50c70ae078d79de42afd9b1b6e33fd90ced49b0e81207199a

Score

10^/10

asyncrat stormkitty rat spyware stealer suricata

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Contains code to disable Windows Defender 6 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\file.exe	disable_win_def
C:\Users\Admin\AppData\Local\Temp\file.exe	disable_win_def
behavioral1/memory/268-60-0x0000000000C20000-0x0000000000C44000-memory.dmp	disable_win_def
behavioral1/memory/592-69-0x0000000000170000-0x0000000000194000-memory.dmp	disable_win_def
C:\Users\Admin\AppData\Roaming\word.exe	disable_win_def
C:\Users\Admin\AppData\Roaming\word.exe	disable_win_def

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

StormKitty Payload 3 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\name.exe	family_stormkitty
C:\Users\Admin\AppData\Local\Temp\name.exe	family_stormkitty
behavioral1/memory/1276-61-0x0000000000FE0000-0x0000000001010000-memory.dmp	family_stormkitty

suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata

Async RAT payload 9 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\file.exe	asyncrat
C:\Users\Admin\AppData\Local\Temp\file.exe	asyncrat
C:\Users\Admin\AppData\Local\Temp\name.exe	asyncrat
C:\Users\Admin\AppData\Local\Temp\name.exe	asyncrat
behavioral1/memory/268-60-0x0000000000C20000-0x0000000000C44000-memory.dmp	asyncrat
behavioral1/memory/1276-61-0x0000000000FE0000-0x0000000001010000-memory.dmp	asyncrat
behavioral1/memory/592-69-0x0000000000170000-0x0000000000194000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\word.exe	asyncrat
C:\Users\Admin\AppData\Roaming\word.exe	asyncrat

Executes dropped EXE 3 IoCs

Processes:

file.exename.exeword.exe

pid process

268 file.exe
1276 name.exe
592 word.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) 5 IoCs

Processes:

name.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\d65792383300f784b36841317e7d8e72\Admin@QSKGHMYQ_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	name.exe
File opened for modification	C:\Users\Admin\AppData\Local\d65792383300f784b36841317e7d8e72\Admin@QSKGHMYQ_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	name.exe
File created	C:\Users\Admin\AppData\Local\d65792383300f784b36841317e7d8e72\Admin@QSKGHMYQ_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	name.exe
File created	C:\Users\Admin\AppData\Local\d65792383300f784b36841317e7d8e72\Admin@QSKGHMYQ_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	name.exe
File created	C:\Users\Admin\AppData\Local\d65792383300f784b36841317e7d8e72\Admin@QSKGHMYQ_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	name.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

7 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
7	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:

name.exe

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

1740 schtasks.exe

pid	process
1740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

file.exename.exeword.exe

pid	process
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
268	file.exe
1276	name.exe
1276	name.exe
592	word.exe
592	word.exe
592	word.exe
592	word.exe
1276	name.exe
1276	name.exe
592	word.exe
592	word.exe
592	word.exe
592	word.exe
592	word.exe
592	word.exe
1276	name.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

name.exefile.exeword.exe

description pid process

Token: SeDebugPrivilege 1276 name.exe
Token: SeDebugPrivilege 268 file.exe
Token: SeDebugPrivilege 592 word.exe

description	pid	process
Token: SeDebugPrivilege	1276	name.exe
Token: SeDebugPrivilege	268	file.exe
Token: SeDebugPrivilege	592	word.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

WScript.exefile.exeWScript.exename.execmd.execmd.exe

description	pid	process	target process
PID 1652 wrote to memory of 268	1652	WScript.exe	file.exe
PID 1652 wrote to memory of 268	1652	WScript.exe	file.exe
PID 1652 wrote to memory of 268	1652	WScript.exe	file.exe
PID 1652 wrote to memory of 1276	1652	WScript.exe	name.exe
PID 1652 wrote to memory of 1276	1652	WScript.exe	name.exe
PID 1652 wrote to memory of 1276	1652	WScript.exe	name.exe
PID 1652 wrote to memory of 1276	1652	WScript.exe	name.exe
PID 268 wrote to memory of 988	268	file.exe	WScript.exe
PID 268 wrote to memory of 988	268	file.exe	WScript.exe
PID 268 wrote to memory of 988	268	file.exe	WScript.exe
PID 988 wrote to memory of 1740	988	WScript.exe	schtasks.exe
PID 988 wrote to memory of 1740	988	WScript.exe	schtasks.exe
PID 988 wrote to memory of 1740	988	WScript.exe	schtasks.exe
PID 268 wrote to memory of 592	268	file.exe	word.exe
PID 268 wrote to memory of 592	268	file.exe	word.exe
PID 268 wrote to memory of 592	268	file.exe	word.exe
PID 1276 wrote to memory of 1964	1276	name.exe	cmd.exe
PID 1276 wrote to memory of 1964	1276	name.exe	cmd.exe
PID 1276 wrote to memory of 1964	1276	name.exe	cmd.exe
PID 1276 wrote to memory of 1964	1276	name.exe	cmd.exe
PID 1964 wrote to memory of 1532	1964	cmd.exe	chcp.com
PID 1964 wrote to memory of 1532	1964	cmd.exe	chcp.com
PID 1964 wrote to memory of 1532	1964	cmd.exe	chcp.com
PID 1964 wrote to memory of 1532	1964	cmd.exe	chcp.com
PID 1964 wrote to memory of 1968	1964	cmd.exe	netsh.exe
PID 1964 wrote to memory of 1968	1964	cmd.exe	netsh.exe
PID 1964 wrote to memory of 1968	1964	cmd.exe	netsh.exe
PID 1964 wrote to memory of 1968	1964	cmd.exe	netsh.exe
PID 1964 wrote to memory of 1120	1964	cmd.exe	findstr.exe
PID 1964 wrote to memory of 1120	1964	cmd.exe	findstr.exe
PID 1964 wrote to memory of 1120	1964	cmd.exe	findstr.exe
PID 1964 wrote to memory of 1120	1964	cmd.exe	findstr.exe
PID 1276 wrote to memory of 1776	1276	name.exe	cmd.exe
PID 1276 wrote to memory of 1776	1276	name.exe	cmd.exe
PID 1276 wrote to memory of 1776	1276	name.exe	cmd.exe
PID 1276 wrote to memory of 1776	1276	name.exe	cmd.exe
PID 1776 wrote to memory of 988	1776	cmd.exe	chcp.com
PID 1776 wrote to memory of 988	1776	cmd.exe	chcp.com
PID 1776 wrote to memory of 988	1776	cmd.exe	chcp.com
PID 1776 wrote to memory of 988	1776	cmd.exe	chcp.com
PID 1776 wrote to memory of 940	1776	cmd.exe	netsh.exe
PID 1776 wrote to memory of 940	1776	cmd.exe	netsh.exe
PID 1776 wrote to memory of 940	1776	cmd.exe	netsh.exe
PID 1776 wrote to memory of 940	1776	cmd.exe	netsh.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\QuotePDF.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1652

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\tmpFE2D.tmp.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc onlogon /rl highest /tn word.exe /tr "C:\Users\Admin\AppData\Roaming\word.exe
4⤵
- Creates scheduled task(s)
PID:1740

C:\Users\Admin\AppData\Roaming\word.exe
"C:\Users\Admin\AppData\Roaming\word.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:592

C:\Users\Admin\AppData\Local\Temp\name.exe
"C:\Users\Admin\AppData\Local\Temp\name.exe"
2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
3⤵
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:1532

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
4⤵
PID:1968

C:\Windows\SysWOW64\findstr.exe
findstr All
4⤵
PID:1120

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
3⤵
- Suspicious use of WriteProcessMemory
PID:1776

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:988

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
4⤵
PID:940

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1768

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:828

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\Temp\file.exe
MD5
78df8357a69de092306ef19bd3d392a9

SHA1
eba4800d57aaf97a06f787fec82641065527f6d5

SHA256
7d0ccd90388759c96e536943055fbecca5c51f553fb25f350de37ceb40a2613e

SHA512
a5dbf72231e6513c2c7a9cc34ba24eedc0c1f49020deb2cf68e31eb93cac222bfdc8a6ce6f8d6ceb3c6efec23eef6cf62200b6a867ea67ad29c5ad43b5332d9a

Download Submit
C:\Users\Admin\AppData\Local\Temp\file.exe
MD5
78df8357a69de092306ef19bd3d392a9

SHA1
eba4800d57aaf97a06f787fec82641065527f6d5

SHA256
7d0ccd90388759c96e536943055fbecca5c51f553fb25f350de37ceb40a2613e

SHA512
a5dbf72231e6513c2c7a9cc34ba24eedc0c1f49020deb2cf68e31eb93cac222bfdc8a6ce6f8d6ceb3c6efec23eef6cf62200b6a867ea67ad29c5ad43b5332d9a

Download Submit
C:\Users\Admin\AppData\Local\Temp\name.exe
MD5
85a86da84355abb40ccabdb5f45ae13b

SHA1
4a98a7682fbb721354f0fb672d9338ac62b4350c

SHA256
d43d7ed548724fd7fe611014b3d4b170b41b36cc84e37fc307a7c6f4ea14272c

SHA512
7aa56b3556739317196f7b2e28cbadb597c0260a7e0cf33afc7b07057a368ac5345a822abf7ba74e5fd3889c801fbf240f6af250289cb01148e036dde5dc0bc1

Download Submit
C:\Users\Admin\AppData\Local\Temp\name.exe
MD5
85a86da84355abb40ccabdb5f45ae13b

SHA1
4a98a7682fbb721354f0fb672d9338ac62b4350c

SHA256
d43d7ed548724fd7fe611014b3d4b170b41b36cc84e37fc307a7c6f4ea14272c

SHA512
7aa56b3556739317196f7b2e28cbadb597c0260a7e0cf33afc7b07057a368ac5345a822abf7ba74e5fd3889c801fbf240f6af250289cb01148e036dde5dc0bc1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFE2D.tmp.vbs
MD5
f39a89ff1b5f43b3d88d8c8d140483af

SHA1
c9ebd9d2d1625dbb11733c53000e88e2b24cd659

SHA256
8d15cd30d9ef7e9021ea1afdfd689d6fdbc746cba5617f5315734dfff65f1e09

SHA512
033f659a9f1fa998767529adfbe1adfc82c7788994e351fbf78152555759c0ed9f3dd750cb6d3a5ca3b99414ad52690e69698bf17ad12a47e14c86e2669aa78b

Download Submit
C:\Users\Admin\AppData\Roaming\word.exe
MD5
78df8357a69de092306ef19bd3d392a9

SHA1
eba4800d57aaf97a06f787fec82641065527f6d5

SHA256
7d0ccd90388759c96e536943055fbecca5c51f553fb25f350de37ceb40a2613e

SHA512
a5dbf72231e6513c2c7a9cc34ba24eedc0c1f49020deb2cf68e31eb93cac222bfdc8a6ce6f8d6ceb3c6efec23eef6cf62200b6a867ea67ad29c5ad43b5332d9a

Download Submit
C:\Users\Admin\AppData\Roaming\word.exe
MD5
78df8357a69de092306ef19bd3d392a9

SHA1
eba4800d57aaf97a06f787fec82641065527f6d5

SHA256
7d0ccd90388759c96e536943055fbecca5c51f553fb25f350de37ceb40a2613e

SHA512
a5dbf72231e6513c2c7a9cc34ba24eedc0c1f49020deb2cf68e31eb93cac222bfdc8a6ce6f8d6ceb3c6efec23eef6cf62200b6a867ea67ad29c5ad43b5332d9a

Download Submit
memory/268-64-0x0000000000300000-0x0000000000540000-memory.dmp

Filesize
2.2MB

Download
memory/268-60-0x0000000000C20000-0x0000000000C44000-memory.dmp

Filesize
144KB

Download
memory/592-69-0x0000000000170000-0x0000000000194000-memory.dmp

Filesize
144KB

Download
memory/592-70-0x000000001B060000-0x000000001B062000-memory.dmp

Filesize
8KB

Download
memory/1276-62-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1276-63-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1276-61-0x0000000000FE0000-0x0000000001010000-memory.dmp

Filesize
192KB

Download
memory/1276-71-0x0000000000355000-0x0000000000366000-memory.dmp

Filesize
68KB

Download
memory/1652-55-0x000007FEFC401000-0x000007FEFC403000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads