asyncrat | 4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43

General

Target

4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
Size

175KB
MD5

e331d9ebc153eccd14e8553d39f91b91
SHA1

7ece98c4c90a6fd363ff69adb79306b82ba221dd
SHA256

4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43
SHA512

aed6a40432344065667efb392c0c13f3deed14191c3fed6663d64c650cb6b083bf26b0840e2bd3c824f94a03e5dd34bec5353c7c2a573c716f569e8a290375d6
SSDEEP

3072:Ze8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTsYwARE+WpCc:16ewwIwQJ6vKX0c5MlYZ0b2W

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

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/2252-1-0x0000000000EC0000-0x0000000000EF2000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty
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) 8 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
File opened for modification	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
File created	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
File opened for modification	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
File created	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
File created	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
File created	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
File created	C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
28	pastebin.com
29	pastebin.com

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
18	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

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 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
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

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
5692	cmd.exe
4876	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	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 5692	2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe	95
PID 2252 wrote to memory of 5692	2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe	95
PID 2252 wrote to memory of 5692	2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe	95
PID 5692 wrote to memory of 3504	5692	cmd.exe	97
PID 5692 wrote to memory of 3504	5692	cmd.exe	97
PID 5692 wrote to memory of 3504	5692	cmd.exe	97
PID 5692 wrote to memory of 4876	5692	cmd.exe	98
PID 5692 wrote to memory of 4876	5692	cmd.exe	98
PID 5692 wrote to memory of 4876	5692	cmd.exe	98
PID 5692 wrote to memory of 1700	5692	cmd.exe	99
PID 5692 wrote to memory of 1700	5692	cmd.exe	99
PID 5692 wrote to memory of 1700	5692	cmd.exe	99
PID 2252 wrote to memory of 3564	2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe	100
PID 2252 wrote to memory of 3564	2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe	100
PID 2252 wrote to memory of 3564	2252	4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe	100
PID 3564 wrote to memory of 4236	3564	cmd.exe	102
PID 3564 wrote to memory of 4236	3564	cmd.exe	102
PID 3564 wrote to memory of 4236	3564	cmd.exe	102
PID 3564 wrote to memory of 2232	3564	cmd.exe	103
PID 3564 wrote to memory of 2232	3564	cmd.exe	103
PID 3564 wrote to memory of 2232	3564	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe
"C:\Users\Admin\AppData\Local\Temp\4c8b95c5f62a6fd10613f0f07eea6d548a1827c39e76a77cee667f9f8a907b43.exe"
1⤵
- 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:2252
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Wi-Fi Discovery
  - Suspicious use of WriteProcessMemory
  PID:5692
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3504
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:4876
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1700
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3564
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4236
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2232

Network

MITRE ATT&CK Enterprise v16

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

1

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\a41053121b52c494853e973a878ea2a2\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\ba76be9b00d0c0ed29069ebd674b4744\Admin@ELDOIJJI_en-US\System\Process.txt

Filesize
4KB

MD5
2cc8f85fc28e0847ca4d2a102f6ed454

SHA1
f8f19400df4d958efb4199a5cd46e2dbf6865737

SHA256
17d6be7d6aab31ecea72be916773eafaad5a5502d718cb2759dcac0b2b86e1a3

SHA512
741691cb55fd05b1a7a64fd80e4cdc7e07e670ef6261cfb1fab4d1f3bb6fd6f3d8b8bfd3f9a422e6efe41ce007ae279a4929a9122a1d2573f5369dfad08f45f2

Download Submit
memory/2252-131-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/2252-3-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/2252-108-0x000000007459E000-0x000000007459F000-memory.dmp

Filesize
4KB

Download
memory/2252-2-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/2252-0-0x000000007459E000-0x000000007459F000-memory.dmp

Filesize
4KB

Download
memory/2252-149-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/2252-151-0x0000000006420000-0x00000000064B2000-memory.dmp

Filesize
584KB

Download
memory/2252-152-0x0000000006A70000-0x0000000007014000-memory.dmp

Filesize
5.6MB

Download
memory/2252-156-0x0000000006520000-0x000000000652A000-memory.dmp

Filesize
40KB

Download
memory/2252-1-0x0000000000EC0000-0x0000000000EF2000-memory.dmp

Filesize
200KB

Download
memory/2252-162-0x00000000072E0000-0x00000000072F2000-memory.dmp

Filesize
72KB

Download
memory/2252-185-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads