asyncrat | c9dbac4fe659e8918f50a4a157713e40d71e05367799af66d1d7845d958ee3f7

General

Target

7f1630df6b57af024a3b561bdadc208f.exe
Size

175KB
MD5

7f1630df6b57af024a3b561bdadc208f
SHA1

9b304cb2eff05f040b76eccc00ee55b914cf1839
SHA256

c9dbac4fe659e8918f50a4a157713e40d71e05367799af66d1d7845d958ee3f7
SHA512

742219cb5c76b9d39ed56cff988a533d19ef3e202e0fa48e9a3aed7dd9de190eef0c313bc974e37e7f363892eb6787bc66657324be2f0fb05d1b0021ae61ec9e
SSDEEP

3072:Je8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gT1wARE+WpCc:F6ewwIwQJ6vKX0c5MlYZ0b2K

Score

10^/10

asyncrat stormkitty default credential_access 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/bot7293375371:AAFwIvNWcuknS3y3mtsx4yNSSTkj8NCF_ko/sendMessage?chat_id=5795480469

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
behavioral2/memory/4216-1-0x00000000001F0000-0x0000000000222000-memory.dmp	family_stormkitty

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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
T1552.001

Drops desktop.ini file(s) 8 IoCs

Processes:

7f1630df6b57af024a3b561bdadc208f.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe
File opened for modification	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe
File created	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe
File created	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe
File created	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe
File created	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe
File created	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe
File opened for modification	C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	7f1630df6b57af024a3b561bdadc208f.exe

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

Web Service
T1102

Processes:

flow ioc

40 pastebin.com
41 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.

Processes:

flow ioc

30 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

flow	ioc
40	pastebin.com
41	pastebin.com

flow	ioc
30	icanhazip.com

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

Processes:

netsh.exenetsh.exe

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

Processes:

7f1630df6b57af024a3b561bdadc208f.execmd.exechcp.comfindstr.exenetsh.execmd.exechcp.comnetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f1630df6b57af024a3b561bdadc208f.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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

Processes:

cmd.exenetsh.exe

pid process

4584 cmd.exe
408 netsh.exe

pid	process
4584	cmd.exe
408	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

Processes:

7f1630df6b57af024a3b561bdadc208f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	7f1630df6b57af024a3b561bdadc208f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	7f1630df6b57af024a3b561bdadc208f.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

7f1630df6b57af024a3b561bdadc208f.exe

pid	process
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe
4216	7f1630df6b57af024a3b561bdadc208f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

7f1630df6b57af024a3b561bdadc208f.exe

description pid process

Token: SeDebugPrivilege 4216 7f1630df6b57af024a3b561bdadc208f.exe

description	pid	process
Token: SeDebugPrivilege	4216	7f1630df6b57af024a3b561bdadc208f.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

7f1630df6b57af024a3b561bdadc208f.execmd.execmd.exe

description	pid	process	target process
PID 4216 wrote to memory of 4584	4216	7f1630df6b57af024a3b561bdadc208f.exe	cmd.exe
PID 4216 wrote to memory of 4584	4216	7f1630df6b57af024a3b561bdadc208f.exe	cmd.exe
PID 4216 wrote to memory of 4584	4216	7f1630df6b57af024a3b561bdadc208f.exe	cmd.exe
PID 4584 wrote to memory of 2952	4584	cmd.exe	chcp.com
PID 4584 wrote to memory of 2952	4584	cmd.exe	chcp.com
PID 4584 wrote to memory of 2952	4584	cmd.exe	chcp.com
PID 4584 wrote to memory of 408	4584	cmd.exe	netsh.exe
PID 4584 wrote to memory of 408	4584	cmd.exe	netsh.exe
PID 4584 wrote to memory of 408	4584	cmd.exe	netsh.exe
PID 4584 wrote to memory of 3556	4584	cmd.exe	findstr.exe
PID 4584 wrote to memory of 3556	4584	cmd.exe	findstr.exe
PID 4584 wrote to memory of 3556	4584	cmd.exe	findstr.exe
PID 4216 wrote to memory of 4368	4216	7f1630df6b57af024a3b561bdadc208f.exe	cmd.exe
PID 4216 wrote to memory of 4368	4216	7f1630df6b57af024a3b561bdadc208f.exe	cmd.exe
PID 4216 wrote to memory of 4368	4216	7f1630df6b57af024a3b561bdadc208f.exe	cmd.exe
PID 4368 wrote to memory of 3496	4368	cmd.exe	chcp.com
PID 4368 wrote to memory of 3496	4368	cmd.exe	chcp.com
PID 4368 wrote to memory of 3496	4368	cmd.exe	chcp.com
PID 4368 wrote to memory of 4480	4368	cmd.exe	netsh.exe
PID 4368 wrote to memory of 4480	4368	cmd.exe	netsh.exe
PID 4368 wrote to memory of 4480	4368	cmd.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\7f1630df6b57af024a3b561bdadc208f.exe
"C:\Users\Admin\AppData\Local\Temp\7f1630df6b57af024a3b561bdadc208f.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:4216
- 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:4584
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2952
- - 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:408
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3556
- 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:4368
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3496
- - 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:4480

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\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\22ac2ece95c97c0de7471088d99ebf1d\Admin@KZYBFHMK_en-US\System\Process.txt

Filesize
4KB

MD5
0b4de3167436b98f0524f19a5bfc29a1

SHA1
a3332c4dcee813600b97f897137a990e84444d78

SHA256
dbfaec20c63df3ed895529fcf291f3d0b8612f9ab1b07bee8763e7a24ed19cb2

SHA512
418ce2791a662de0be864e921eb979d6b82c156560edeb33daffa512a0e62567526c411b02ec0b02e44a968197550908e051879a084b82e73ba8a273bf419124

Download Submit
C:\Users\Admin\AppData\Local\d529447d9052f8004e9665243f2ab53d\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4216-143-0x000000007525E000-0x000000007525F000-memory.dmp

Filesize
4KB

Download
memory/4216-3-0x0000000004BD0000-0x0000000004C36000-memory.dmp

Filesize
408KB

Download
memory/4216-2-0x0000000075250000-0x0000000075A00000-memory.dmp

Filesize
7.7MB

Download
memory/4216-0-0x000000007525E000-0x000000007525F000-memory.dmp

Filesize
4KB

Download
memory/4216-150-0x0000000075250000-0x0000000075A00000-memory.dmp

Filesize
7.7MB

Download
memory/4216-151-0x0000000075250000-0x0000000075A00000-memory.dmp

Filesize
7.7MB

Download
memory/4216-153-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/4216-154-0x0000000005D80000-0x0000000006324000-memory.dmp

Filesize
5.6MB

Download
memory/4216-158-0x0000000005960000-0x000000000596A000-memory.dmp

Filesize
40KB

Download
memory/4216-1-0x00000000001F0000-0x0000000000222000-memory.dmp

Filesize
200KB

Download
memory/4216-164-0x0000000006610000-0x0000000006622000-memory.dmp

Filesize
72KB

Download
memory/4216-189-0x0000000075250000-0x0000000075A00000-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