asyncrat | f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8

General

Target

f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
Size

175KB
MD5

f6de529f44ce715ca2229e72f80bb2c9
SHA1

b8fdc1415fdf3b2cf64c018f1f53bec4affdafca
SHA256

f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8
SHA512

28a109d54ff5ecbb232351cc59c46dbf07c6825242c3a49b6046e3ae23994171d89157f8167b6e11418cb108c7c3f1dab4e9edbc088d8699cff5e7511ac9d277
SSDEEP

3072:qe8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gT6wARE+WpCc:a6ewwIwQJ6vKX0c5MlYZ0b2X

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/bot7386776614:AAE49J6grELkpFfFaKkddIuaU586DDiQPYY/sendMessage?chat_id=5373795817

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

resource	yara_rule
behavioral2/memory/4232-1-0x0000000000190000-0x00000000001C2000-memory.dmp	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) 9 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File created	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File opened for modification	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File created	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File opened for modification	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File created	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File opened for modification	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File created	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
File created	C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe

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

Web Service

T1102

flow	ioc
25	pastebin.com
24	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
17	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 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	findstr.exe
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	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
1832	cmd.exe
3652	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	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 1832	4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe	88
PID 4232 wrote to memory of 1832	4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe	88
PID 4232 wrote to memory of 1832	4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe	88
PID 1832 wrote to memory of 4984	1832	cmd.exe	90
PID 1832 wrote to memory of 4984	1832	cmd.exe	90
PID 1832 wrote to memory of 4984	1832	cmd.exe	90
PID 1832 wrote to memory of 3652	1832	cmd.exe	91
PID 1832 wrote to memory of 3652	1832	cmd.exe	91
PID 1832 wrote to memory of 3652	1832	cmd.exe	91
PID 1832 wrote to memory of 3492	1832	cmd.exe	92
PID 1832 wrote to memory of 3492	1832	cmd.exe	92
PID 1832 wrote to memory of 3492	1832	cmd.exe	92
PID 4232 wrote to memory of 3584	4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe	93
PID 4232 wrote to memory of 3584	4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe	93
PID 4232 wrote to memory of 3584	4232	f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe	93
PID 3584 wrote to memory of 3024	3584	cmd.exe	95
PID 3584 wrote to memory of 3024	3584	cmd.exe	95
PID 3584 wrote to memory of 3024	3584	cmd.exe	95
PID 3584 wrote to memory of 2172	3584	cmd.exe	96
PID 3584 wrote to memory of 2172	3584	cmd.exe	96
PID 3584 wrote to memory of 2172	3584	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.exe
"C:\Users\Admin\AppData\Local\Temp\f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8.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:4232
- 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:1832
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4984
- - 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:3652
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3492
- 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:3584
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3024
- - 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:2172

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

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\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\System\Process.txt

Filesize
4KB

MD5
b6c9203ee333b531bde855619d5b0714

SHA1
f33811d034070a2536a4bfaabf8dcc32a58face0

SHA256
c3b429c1fcbc4277480507b12374d684a68e44257c055315ad5ae09cb165c7b8

SHA512
a6a2b141798f0ebde2aca04d32c11cfea533d8bf4dfa99775fd0fa3e7d89a4cf2defa6954b0c10812cd4406069ed00e09af17ff3d4651d8dbd46599a05c4e4d2

Download Submit
C:\Users\Admin\AppData\Local\112633070a2715b3754abc556c2edfd0\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4232-3-0x0000000004B80000-0x0000000004BE6000-memory.dmp

Filesize
408KB

Download
memory/4232-0-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/4232-121-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/4232-2-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/4232-146-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/4232-148-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/4232-149-0x0000000005720000-0x00000000057B2000-memory.dmp

Filesize
584KB

Download
memory/4232-150-0x0000000005D70000-0x0000000006314000-memory.dmp

Filesize
5.6MB

Download
memory/4232-154-0x0000000005800000-0x000000000580A000-memory.dmp

Filesize
40KB

Download
memory/4232-1-0x0000000000190000-0x00000000001C2000-memory.dmp

Filesize
200KB

Download
memory/4232-160-0x00000000058B0000-0x00000000058C2000-memory.dmp

Filesize
72KB

Download
memory/4232-185-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads