asyncrat | 9c98af46658c1d03d1befdb088719d324f3891f05c1a6b1b2ee436a5a5552ec4

Analysis

max time kernel
145s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2023, 12:13

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
9c.exe
Size 226KB
Sample230802-pdyjlsfg2s
SHA256 9c98af46658c1d03d1befdb088719d324f3891f05c1a6b1b2ee436a5a5552ec4
MD5 53ddfe229bb020d36166edb9b5d722f8
SHA1 f0035ce182a1c107ef8e08fa96ea22c558db8c18
SHA512 24b1b279f8b90a185dd6ded087878ff83c61469b1266fec41276e2eb19ee6ac51089be7b02146f35364f7f567d3335746a7e6a4e57b460fb41b7f035e7daa6b1
SSDEEP 3072:2+STW8djpN6izj8mZw9KalFI8OSyz6UbB2a9w7F9d16ug6+WpP:L8XN6W8mm0OUbwrFzg
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/bot5012120140:AAFYUA4Q8F0hkeg6HHkMOWhAJcA6-6lhzvc/sendMessage?chat_id=265371884

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/2252-134-0x0000000000260000-0x000000000029E000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/2252-134-0x0000000000260000-0x000000000029E000-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
T1552.001

Drops desktop.ini file(s) 8 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	9c.exe
File created	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	9c.exe
File opened for modification	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	9c.exe
File created	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	9c.exe
File opened for modification	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	9c.exe
File created	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	9c.exe
File created	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	9c.exe
File created	C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	9c.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
40	icanhazip.com

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

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe
2252	9c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	9c.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 3856	2252	9c.exe	95
PID 2252 wrote to memory of 3856	2252	9c.exe	95
PID 2252 wrote to memory of 3856	2252	9c.exe	95
PID 2252 wrote to memory of 1760	2252	9c.exe	100
PID 2252 wrote to memory of 1760	2252	9c.exe	100
PID 2252 wrote to memory of 1760	2252	9c.exe	100
PID 1760 wrote to memory of 4452	1760	cmd.exe	102
PID 1760 wrote to memory of 4452	1760	cmd.exe	102
PID 1760 wrote to memory of 4452	1760	cmd.exe	102
PID 1760 wrote to memory of 2236	1760	cmd.exe	103
PID 1760 wrote to memory of 2236	1760	cmd.exe	103
PID 1760 wrote to memory of 2236	1760	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\9c.exe
"C:\Users\Admin\AppData\Local\Temp\9c.exe"
1⤵
- Drops desktop.ini file(s)
- 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⤵
  PID:3856
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:880
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:2176
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:4352
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:4452
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:2236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

msgid.dat

Path C:\Users\Admin\AppData\Local\917285dd49ea028f474fd9f7383ad889\msgid.dat
Size 3B
SHA256 1253e9373e781b7500266caa55150e08e210bc8cd8cc70d89985e3600155e860
MD5 65b9eea6e1cc6bb9f0cd2a47751a186f
SHA1 e114c448f4ab8554ad14eff3d66dfeb3965ce8fc
SHA512 03d25c7071bce10d6b462d53854b969d9f61b982e3aee8771bdcca1ecb70495574e6929042f52e859ee9a253b58f776514180ff16e1338f5505e86c7ff328f72
MD5 SHA1 SHA512

Submit Download

Process.txt

Path C:\Users\Admin\AppData\Local\d66ab8b78185d96214f2c4f6821f30da\Admin@YACSFKWT_en-US\System\Process.txt
Size 4KB
SHA256 7cf018ac009366843b818bd1ab4e1489e34ef6772092b961284b2644c2c5685c
MD5 9f5d8b41b029223c361909e525dbd917
SHA1 cbcc0308e0b4d35664396f2aee0f449d2e0e617e
SHA512 9b6e092af61884a371ec7691d2c3d39f587d19b44817d732687822669facd23fc77dd9347f405da52fb21b785a25fd5ff86e0ff73777c7d523d70237523ea93b
SSDEEP 24:unp6Lz4F3ZQ2i6JtqOOUQ4j+IpdKf5ZFp2XjZgARpqv3jp9bZqnTUVY7x+23O/aW:ui2Z3ogRsQ6f23u3FUJqtN6MIwvFMe9
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2252-136-0x0000000004D80000-0x0000000004DE6000-memory.dmp

Download

memory/2252-133-0x0000000074B60000-0x0000000075310000-memory.dmp

Download

memory/2252-194-0x0000000074B60000-0x0000000075310000-memory.dmp

Download

memory/2252-203-0x0000000004D70000-0x0000000004D80000-memory.dmp

Download

memory/2252-135-0x0000000004D70000-0x0000000004D80000-memory.dmp

Download

memory/2252-285-0x0000000004D70000-0x0000000004D80000-memory.dmp

Download

memory/2252-287-0x0000000005C00000-0x0000000005C92000-memory.dmp

Download

memory/2252-288-0x0000000006250000-0x00000000067F4000-memory.dmp

Download

memory/2252-292-0x0000000005BF0000-0x0000000005BFA000-memory.dmp

Download

memory/2252-134-0x0000000000260000-0x000000000029E000-memory.dmp

Download

memory/2252-298-0x0000000005170000-0x0000000005182000-memory.dmp

Download

memory/2252-322-0x0000000004D70000-0x0000000004D80000-memory.dmp

Download