asyncrat | 068e727f7a752a65815025756376baa1ae5622a6518cf8056764cfffa7d0b815

General

Target

cheat-Client-18.4/cheat ddnet.exe
Size

13.8MB
MD5

c243a4b95f7bd67a1787ca5637506d28
SHA1

c9d77c9c982d3b74057ddf39bc394c1089ebe762
SHA256

10e075782de89b66ee1780aa15ee50b3f1aa7caaeffa86d3855a27c19f1fed5f
SHA512

400b1906a3a1b5bb00109d2e067c7e0a86589275f0c1106942e4a056019a5f0b00dbeec233a3eb92d33cbd9783cd030453bd0623e6b3dc3863de6e31e6dfd9a7
SSDEEP

393216:UZogBso8b4gFr5jSpEVCZPQmlgoWNuQ4Le:UZoK8b/im0ZYmlgAQ4Le

Score

10^/10

asyncrat stormkitty default discovery persistence privilege_escalation 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

https://api.telegram.org/bot7559842378:AAEO5G-UvKkJGXAkNr6mdPi4Yrgvo7GFhDE/sendMessage?chat_id=1426495159

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 2 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001ab17-8.dat	family_stormkitty
behavioral1/memory/4128-15-0x0000000000A50000-0x0000000000AF8000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x000a00000001ab17-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4128	KRX Clients.exe
360	KRX Client.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	KRX Clients.exe
File created	C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	KRX Clients.exe
File created	C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	KRX Clients.exe
File created	C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	KRX Clients.exe
File created	C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	KRX Clients.exe
File created	C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	KRX Clients.exe
File created	C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	KRX Clients.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
2	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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 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
Key value enumerated	\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	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KRX Clients.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	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
3696	cmd.exe
5004	netsh.exe

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	KRX Clients.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	KRX Clients.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe
4128	KRX Clients.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4128	KRX Clients.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 4128	656	cheat ddnet.exe	74
PID 656 wrote to memory of 4128	656	cheat ddnet.exe	74
PID 656 wrote to memory of 4128	656	cheat ddnet.exe	74
PID 656 wrote to memory of 360	656	cheat ddnet.exe	76
PID 656 wrote to memory of 360	656	cheat ddnet.exe	76
PID 4128 wrote to memory of 3696	4128	KRX Clients.exe	78
PID 4128 wrote to memory of 3696	4128	KRX Clients.exe	78
PID 4128 wrote to memory of 3696	4128	KRX Clients.exe	78
PID 3696 wrote to memory of 2876	3696	cmd.exe	80
PID 3696 wrote to memory of 2876	3696	cmd.exe	80
PID 3696 wrote to memory of 2876	3696	cmd.exe	80
PID 3696 wrote to memory of 5004	3696	cmd.exe	81
PID 3696 wrote to memory of 5004	3696	cmd.exe	81
PID 3696 wrote to memory of 5004	3696	cmd.exe	81
PID 3696 wrote to memory of 3572	3696	cmd.exe	82
PID 3696 wrote to memory of 3572	3696	cmd.exe	82
PID 3696 wrote to memory of 3572	3696	cmd.exe	82
PID 4128 wrote to memory of 3440	4128	KRX Clients.exe	83
PID 4128 wrote to memory of 3440	4128	KRX Clients.exe	83
PID 4128 wrote to memory of 3440	4128	KRX Clients.exe	83
PID 3440 wrote to memory of 3172	3440	cmd.exe	85
PID 3440 wrote to memory of 3172	3440	cmd.exe	85
PID 3440 wrote to memory of 3172	3440	cmd.exe	85
PID 3440 wrote to memory of 1296	3440	cmd.exe	86
PID 3440 wrote to memory of 1296	3440	cmd.exe	86
PID 3440 wrote to memory of 1296	3440	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\cheat-Client-18.4\cheat ddnet.exe
"C:\Users\Admin\AppData\Local\Temp\cheat-Client-18.4\cheat ddnet.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:656
- C:\Users\Admin\AppData\Local\Temp\KRX Clients.exe
  "C:\Users\Admin\AppData\Local\Temp\KRX Clients.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4128
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    - Suspicious use of WriteProcessMemory
    PID:3696
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:2876
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show profile
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Wi-Fi Discovery
      PID:5004
  - - C:\Windows\SysWOW64\findstr.exe
      findstr All
      4⤵
      System Location Discovery: System Language Discovery
      PID:3572
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3440
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:3172
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:1296
- C:\Users\Admin\AppData\Local\Temp\KRX Client.exe
  "C:\Users\Admin\AppData\Local\Temp\KRX Client.exe"
  2⤵
  - Executes dropped EXE
  PID:360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\96bdf839390546d7d836faf221871141\Admin@NDTNZVHN_en-US\System\Process.txt

Filesize
4KB

MD5
078a20322d976d904c728f9c90ba72bf

SHA1
2fda012b23554e16ca099a01c0acd98bfc96d310

SHA256
b947807034a2c616afa54777ef5daa01fb2b81f3a50dcc4c14b89664d33566e4

SHA512
bdffd8ec835b4a5228b069dc0843940d89bd4f38d9ae11b9ae82c78ff25325b80a928ed8e7de7086c7ec94c060b0f28642958ae695d6943a45a46e31b105f544

Download Submit
C:\Users\Admin\AppData\Local\Temp\KRX Client.exe

Filesize
13.1MB

MD5
4576b168071792af058f9247646c0211

SHA1
3a65b8aaa74fe1f0c519de3a3fb1ebb7c11d636e

SHA256
4361a46dc16dd11d11d9d83e06ebb8332049be65c4589b3e331e51e97502bb18

SHA512
f397fc6227e1f8b9b7a3cbe1aafdbb2f161bc4d116b83e6dd70da38c0de68098ea8d00defcbe1051291e3982b42dbc2956384403d892745952059b1b768dcdcf

Download Submit
C:\Users\Admin\AppData\Local\Temp\KRX Clients.exe

Filesize
648KB

MD5
9ce354a36d22e83dfffbd0153d199a7b

SHA1
0dc32906c6c0549bc321968fd690c57597e4b25d

SHA256
39e63e086fe73f3accc83c134107419cb346887f1574399cf4d73bac28c9c3e5

SHA512
ab934189c487e1496ba5e82010aa85a71b860d78170fb88773494be800a9ff92c8366d41f70997291f7adf4db159fc7d36856a07a101b9bfa77089bab70566f1

Download Submit
C:\Users\Admin\AppData\Local\e95e14612d7af1c79a2f62cacf4f4e81\msgid.dat

Filesize
3B

MD5
979d472a84804b9f647bc185a877a8b5

SHA1
19187dc98dce52fa4c4e8e05b341a9b77a51fd26

SHA256
d48ff4b2f68a10fd7c86f185a6ccede0dc0f2c48538d697cb33b6ada3f1e85db

SHA512
eb2f6d6c3d0d1c9104d04facb613acd5d8c3eb74884c7f3fc2f3077bcecd8baced50b287a54ba9f823a4b47d3c247ed65a351983db5d48d6714291ebeb5c71ae

Download Submit
memory/360-16-0x0000000140000000-0x0000000141FED000-memory.dmp

Filesize
31.9MB

Download
memory/4128-15-0x0000000000A50000-0x0000000000AF8000-memory.dmp

Filesize
672KB

Download
memory/4128-17-0x0000000005300000-0x0000000005366000-memory.dmp

Filesize
408KB

Download
memory/4128-137-0x0000000005E20000-0x0000000005EB2000-memory.dmp

Filesize
584KB

Download
memory/4128-138-0x00000000063C0000-0x00000000068BE000-memory.dmp

Filesize
5.0MB

Download
memory/4128-142-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/4128-143-0x0000000005F20000-0x0000000005F2A000-memory.dmp

Filesize
40KB

Download
memory/4128-11-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/4128-149-0x0000000005F30000-0x0000000005F42000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads