asyncrat | e1df166da9ba07ad1a5b1a105eac585f04ea67a023cca16f54bdbfa97bb39dd2

General

Target

OTP BULDER @ZerodayExploitware.exe
Size

175KB
MD5

0d421a91631c3c2cae6533bd32e2e595
SHA1

9113e54ec2b864a4845cb14930aa60666e1a596a
SHA256

e1df166da9ba07ad1a5b1a105eac585f04ea67a023cca16f54bdbfa97bb39dd2
SHA512

1d677726303cb667c01d8d340f5632667c1929dd5965e7008eab2d1755a02823cff1f583ece6987085ed1eb28429afa2592e5f0b6b63a3bb8e9c17d77c69d8ad
SSDEEP

3072:Ue8oX8Sb5KcXrtkkXmf/bDsvqtU+lLToChAP0UZ0b2gTIwAqE+Wpor:9Xtb5KcXr7XmfgqtjhAxZ0b2h

Score

10^/10

asyncrat stormkitty default 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/bot6381067446:AAEZEWH8wbF7Q1Kou81_S0sE6VwJZGJKneM/sendMessage?chat_id=5901231421

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/1428-1-0x0000000000700000-0x0000000000732000-memory.dmp	family_stormkitty

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\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	OTP BULDER @ZerodayExploitware.exe
File created	C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	OTP BULDER @ZerodayExploitware.exe
File opened for modification	C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	OTP BULDER @ZerodayExploitware.exe
File opened for modification	C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	OTP BULDER @ZerodayExploitware.exe
File created	C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	OTP BULDER @ZerodayExploitware.exe
File created	C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	OTP BULDER @ZerodayExploitware.exe
File created	C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	OTP BULDER @ZerodayExploitware.exe
File created	C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	OTP BULDER @ZerodayExploitware.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
32	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	OTP BULDER @ZerodayExploitware.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	OTP BULDER @ZerodayExploitware.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe
1428	OTP BULDER @ZerodayExploitware.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1428	OTP BULDER @ZerodayExploitware.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 4792	1428	OTP BULDER @ZerodayExploitware.exe	94
PID 1428 wrote to memory of 4792	1428	OTP BULDER @ZerodayExploitware.exe	94
PID 1428 wrote to memory of 4792	1428	OTP BULDER @ZerodayExploitware.exe	94
PID 4792 wrote to memory of 3016	4792	cmd.exe	96
PID 4792 wrote to memory of 3016	4792	cmd.exe	96
PID 4792 wrote to memory of 3016	4792	cmd.exe	96
PID 4792 wrote to memory of 3472	4792	cmd.exe	97
PID 4792 wrote to memory of 3472	4792	cmd.exe	97
PID 4792 wrote to memory of 3472	4792	cmd.exe	97
PID 4792 wrote to memory of 2176	4792	cmd.exe	98
PID 4792 wrote to memory of 2176	4792	cmd.exe	98
PID 4792 wrote to memory of 2176	4792	cmd.exe	98
PID 1428 wrote to memory of 2724	1428	OTP BULDER @ZerodayExploitware.exe	99
PID 1428 wrote to memory of 2724	1428	OTP BULDER @ZerodayExploitware.exe	99
PID 1428 wrote to memory of 2724	1428	OTP BULDER @ZerodayExploitware.exe	99
PID 2724 wrote to memory of 3192	2724	cmd.exe	101
PID 2724 wrote to memory of 3192	2724	cmd.exe	101
PID 2724 wrote to memory of 3192	2724	cmd.exe	101
PID 2724 wrote to memory of 4316	2724	cmd.exe	102
PID 2724 wrote to memory of 4316	2724	cmd.exe	102
PID 2724 wrote to memory of 4316	2724	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\OTP BULDER @ZerodayExploitware.exe
"C:\Users\Admin\AppData\Local\Temp\OTP BULDER @ZerodayExploitware.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1428
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4792
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:3016
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:3472
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:2176
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:3192
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:4316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\2161666e63dc4181d60266fda892f59e\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\ac9d1bab2b3237d3d6862315bd86fbd8\Admin@RIJTOOVX_en-US\System\Process.txt

Filesize
4KB

MD5
7ba174f07b243609a19e03a21b3028ed

SHA1
c79b8da3688935a524ea876aacda3f9c5ccbfd75

SHA256
963bcc8c82e572c18a97c71442c8bfd98fc14b88fd140284ed9540420e7c98aa

SHA512
d4be0d3b1972d7405ab809a2342df9330a234ca1fd371c22a377f6dc586ce98acf62db69f4f89b33f809d7785c5c4854d5c36136a0ed12cefd45ffda1aae0cd2

Download Submit
memory/1428-148-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1428-3-0x00000000050E0000-0x0000000005146000-memory.dmp

Filesize
408KB

Download
memory/1428-2-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1428-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/1428-149-0x0000000005C50000-0x0000000005CE2000-memory.dmp

Filesize
584KB

Download
memory/1428-150-0x00000000062A0000-0x0000000006844000-memory.dmp

Filesize
5.6MB

Download
memory/1428-154-0x0000000005E90000-0x0000000005E9A000-memory.dmp

Filesize
40KB

Download
memory/1428-1-0x0000000000700000-0x0000000000732000-memory.dmp

Filesize
200KB

Download
memory/1428-160-0x0000000006B30000-0x0000000006B42000-memory.dmp

Filesize
72KB

Download
memory/1428-185-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/1428-186-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1428-187-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download

Analysis

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