asyncrat | 6cdb8d1af85d10ed3022ae0a183e3e9dff0ad1bc4a90915e7e41b600154a349e

Analysis

max time kernel
147s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2023, 00:03

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General

Target
panel.exe
Size 170KB
Sample230426-ab2e6adh25
SHA256 6cdb8d1af85d10ed3022ae0a183e3e9dff0ad1bc4a90915e7e41b600154a349e
MD5 470a8267b5eba7eb998d9fa69532f849
SHA1 1152ddb2ab93aae9983e3e8b5c4f367875323e3e
SHA512 5f151230dc97e0804cbe7b36ce9a4570023bdaf0283ae2681732a835c26e540ec93f9c56cd78599c8deeeaed10b2b50f9c976c85ad95d4e36460e05083f7048d
SSDEEP 3072:O+STW8djpN6izj8mZwHQiWZqswqIPu/i9b+J2cOZTMi56+WpL:z8XN6W8mmdUwXPSi9b2c3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat stormkitty default rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot6093966625:AAHk4dddHb8B1faCcFqL3um1gmB-f2mWhyc/sendMessage?chat_id=5529838804

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/4116-133-0x0000000000A00000-0x0000000000A30000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4116-133-0x0000000000A00000-0x0000000000A30000-memory.dmp	asyncrat

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) 9 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	panel.exe
File opened for modification	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	panel.exe
File opened for modification	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	panel.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
27	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.

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

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe
4116	panel.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4116	panel.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 2704	4116	panel.exe	83
PID 4116 wrote to memory of 2704	4116	panel.exe	83
PID 4116 wrote to memory of 2704	4116	panel.exe	83
PID 2704 wrote to memory of 752	2704	cmd.exe	85
PID 2704 wrote to memory of 752	2704	cmd.exe	85
PID 2704 wrote to memory of 752	2704	cmd.exe	85
PID 2704 wrote to memory of 3768	2704	cmd.exe	86
PID 2704 wrote to memory of 3768	2704	cmd.exe	86
PID 2704 wrote to memory of 3768	2704	cmd.exe	86
PID 2704 wrote to memory of 4272	2704	cmd.exe	87
PID 2704 wrote to memory of 4272	2704	cmd.exe	87
PID 2704 wrote to memory of 4272	2704	cmd.exe	87
PID 4116 wrote to memory of 900	4116	panel.exe	88
PID 4116 wrote to memory of 900	4116	panel.exe	88
PID 4116 wrote to memory of 900	4116	panel.exe	88
PID 900 wrote to memory of 4480	900	cmd.exe	90
PID 900 wrote to memory of 4480	900	cmd.exe	90
PID 900 wrote to memory of 4480	900	cmd.exe	90
PID 900 wrote to memory of 4704	900	cmd.exe	91
PID 900 wrote to memory of 4704	900	cmd.exe	91
PID 900 wrote to memory of 4704	900	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\panel.exe
"C:\Users\Admin\AppData\Local\Temp\panel.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4116
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2704
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:752
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:3768
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:4272
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:900
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:4480
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:4704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

Process.txt

Path C:\Users\Admin\AppData\Local\8d871c3c9291c8758c12de46266187fe\Admin@TPAVZECK_en-US\System\Process.txt
Size 4KB
SHA256 2c728ef202fd542cde5ea10358ca46015f30fe1d593bf2036e58427dd73b72ff
MD5 810b6d4ea6d5d8721a6f85d5ddeba2bf
SHA1 5af4985385466ea9beae5da6e1cad1c5bb865f2f
SHA512 f0f1d3dd90e07e92879a4d023cf4b3897a497f8b498a56fc2324bd41c17398f2a9dc681c308ed66f67b294ec41eddab2ccb0ef15e9a509b240ac3a50b39eb4ca
SSDEEP 48:9rc+aMsE+2tepNfjbcg9zCHKo230b1usDLZh:9rcTW+WifjwiCHKo230BrDLZh
MD5 SHA1 SHA512 SSDEEP

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msgid.dat

Path C:\Users\Admin\AppData\Local\e3ca9dd40c7a905887d80d9a74093fdb\msgid.dat
Size 4B
SHA256 b910260d6ccd1fedb9919e9974c4b1eacf7ff1e3a4643c05cf423de2f221c06a
MD5 d8700cbd38cc9f30cecb34f0c195b137
SHA1 9587915e367335b4e286dbc435585857db78c0c5
SHA512 e77e352e79d9d03d985f5f26663e9ee41903b7cd4b327802761037e57c3c36efa320ee37b7192b45320439755974a8d87cfbcd4615d6ce9fa42241651b37b6d1
MD5 SHA1 SHA512

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memory/4116-133-0x0000000000A00000-0x0000000000A30000-memory.dmp

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memory/4116-134-0x00000000054A0000-0x00000000054B0000-memory.dmp

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memory/4116-135-0x00000000054B0000-0x0000000005516000-memory.dmp

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memory/4116-209-0x00000000054A0000-0x00000000054B0000-memory.dmp

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memory/4116-271-0x00000000062F0000-0x0000000006382000-memory.dmp

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memory/4116-272-0x0000000006940000-0x0000000006EE4000-memory.dmp

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memory/4116-274-0x00000000054A0000-0x00000000054B0000-memory.dmp

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memory/4116-277-0x0000000006520000-0x000000000652A000-memory.dmp

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memory/4116-283-0x00000000071B0000-0x00000000071C2000-memory.dmp

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memory/4116-307-0x00000000054A0000-0x00000000054B0000-memory.dmp

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