asyncrat | f414e4465043ddc7e7d558b341d2fefaf62a379d8107c7bc7b39a3d3f4c55b56

Analysis

max time kernel
30s
max time network
34s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
24-04-2023 20:27

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General

Target

Redline Stealer v24.2 cracked [XT_CH]/Kurome.Loader/._cache_Kurome Loader 20.2.exe
Size

170KB
MD5

470a8267b5eba7eb998d9fa69532f849
SHA1

1152ddb2ab93aae9983e3e8b5c4f367875323e3e
SHA256

6cdb8d1af85d10ed3022ae0a183e3e9dff0ad1bc4a90915e7e41b600154a349e
SHA512

5f151230dc97e0804cbe7b36ce9a4570023bdaf0283ae2681732a835c26e540ec93f9c56cd78599c8deeeaed10b2b50f9c976c85ad95d4e36460e05083f7048d
SSDEEP

3072:O+STW8djpN6izj8mZwHQiWZqswqIPu/i9b+J2cOZTMi56+WpL:z8XN6W8mmdUwXPSi9b2c3

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
behavioral5/memory/3280-133-0x0000000000EA0000-0x0000000000ED0000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral5/memory/3280-133-0x0000000000EA0000-0x0000000000ED0000-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) 8 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	._cache_Kurome Loader 20.2.exe
File created	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	._cache_Kurome Loader 20.2.exe
File created	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	._cache_Kurome Loader 20.2.exe
File created	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	._cache_Kurome Loader 20.2.exe
File created	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	._cache_Kurome Loader 20.2.exe
File created	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	._cache_Kurome Loader 20.2.exe
File opened for modification	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	._cache_Kurome Loader 20.2.exe
File opened for modification	C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	._cache_Kurome Loader 20.2.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
28	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	._cache_Kurome Loader 20.2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	._cache_Kurome Loader 20.2.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe
3280	._cache_Kurome Loader 20.2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3280	._cache_Kurome Loader 20.2.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3280 wrote to memory of 2688	3280	._cache_Kurome Loader 20.2.exe	90
PID 3280 wrote to memory of 2688	3280	._cache_Kurome Loader 20.2.exe	90
PID 3280 wrote to memory of 2688	3280	._cache_Kurome Loader 20.2.exe	90
PID 2688 wrote to memory of 960	2688	cmd.exe	92
PID 2688 wrote to memory of 960	2688	cmd.exe	92
PID 2688 wrote to memory of 960	2688	cmd.exe	92
PID 2688 wrote to memory of 3664	2688	cmd.exe	93
PID 2688 wrote to memory of 3664	2688	cmd.exe	93
PID 2688 wrote to memory of 3664	2688	cmd.exe	93
PID 2688 wrote to memory of 5048	2688	cmd.exe	94
PID 2688 wrote to memory of 5048	2688	cmd.exe	94
PID 2688 wrote to memory of 5048	2688	cmd.exe	94
PID 3280 wrote to memory of 460	3280	._cache_Kurome Loader 20.2.exe	95
PID 3280 wrote to memory of 460	3280	._cache_Kurome Loader 20.2.exe	95
PID 3280 wrote to memory of 460	3280	._cache_Kurome Loader 20.2.exe	95
PID 460 wrote to memory of 3420	460	cmd.exe	97
PID 460 wrote to memory of 3420	460	cmd.exe	97
PID 460 wrote to memory of 3420	460	cmd.exe	97
PID 460 wrote to memory of 5108	460	cmd.exe	98
PID 460 wrote to memory of 5108	460	cmd.exe	98
PID 460 wrote to memory of 5108	460	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\Redline Stealer v24.2 cracked [XT_CH]\Kurome.Loader\._cache_Kurome Loader 20.2.exe
"C:\Users\Admin\AppData\Local\Temp\Redline Stealer v24.2 cracked [XT_CH]\Kurome.Loader\._cache_Kurome Loader 20.2.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3280
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:960
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:3664
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:5048
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:460
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:3420
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:5108

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\67e7b5895e2598e74e3ccecbd52bf8dc\msgid.dat

Filesize
3B

MD5
26e359e83860db1d11b6acca57d8ea88

SHA1
eb65e208b715d3b42fc535aebcd8d3e7fb5f2c94

SHA256
76ebdb6d45c61ca12e622118cc90939ade672adf7890aa2b246405d4884dd75a

SHA512
787ee49bdc47713dda397ed679b55d3ed439005e12af8b309305fb21e0c79a79fa6f065617340ab0c29cc2a815ed2d5bc5150f83cd67da85adeec9cb0d0a76af

Download Submit
C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\de17979b2c7a726b20affd7ab588ec25\Admin@TPAVZECK_en-US\System\Process.txt

Filesize
4KB

MD5
a9616efd1d23664fac80902e9cf6227c

SHA1
81f152b6f0674f9b359c96e388d482428fe7ebcd

SHA256
20c29e437e726d79310d735801ce3eb54ad4744be0504baf9a638c73f295738c

SHA512
c8d203ed7df39c00084e7881db025dc8b60c810e9a36f25fe43837b09c504b030bc53359ed5d63c9e8d94d3a0232856ea486d27a4bb6fac5ef6068ee58f97f1b

Download Submit
memory/3280-133-0x0000000000EA0000-0x0000000000ED0000-memory.dmp

Filesize
192KB

Download
memory/3280-134-0x0000000005840000-0x0000000005850000-memory.dmp

Filesize
64KB

Download
memory/3280-135-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/3280-204-0x0000000005840000-0x0000000005850000-memory.dmp

Filesize
64KB

Download
memory/3280-278-0x0000000006810000-0x00000000068A2000-memory.dmp

Filesize
584KB

Download
memory/3280-279-0x0000000006E60000-0x0000000007404000-memory.dmp

Filesize
5.6MB

Download
memory/3280-280-0x0000000005840000-0x0000000005850000-memory.dmp

Filesize
64KB

Download
memory/3280-284-0x00000000067D0000-0x00000000067DA000-memory.dmp

Filesize
40KB

Download
memory/3280-290-0x00000000067F0000-0x0000000006802000-memory.dmp

Filesize
72KB

Download