asyncrat | 373834225a126abde8256049e073b8e07bd06c7563f929783f441a1a63a88d1b

General

Target

Image_Of_Victim.exe
Size

1.9MB
MD5

f1878e41af327064496e57f50d35395d
SHA1

b426d39e6928556a2b58d9147c3254b8fa6009a4
SHA256

373834225a126abde8256049e073b8e07bd06c7563f929783f441a1a63a88d1b
SHA512

ff28bbd0f3c7b04ba93f024d356cee092f14c3040b968ebae31bdd9116ed8762aadcec3ac3af3e06238a787ef87b5031d29acf708640c52ac80f55fdfcd89fdd
SSDEEP

49152:C5IoVKMQfTCFbMmHI6jduMG+XtbNztOsrStQ0pDWa:C5IoAMQfIr++dpztpStFJ

Score

10^/10

asyncrat venom clients collection rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

tienMonkey-40774.portmap.io:40774

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
C:\Client.exe	asyncrat
C:\Client.exe	asyncrat
behavioral2/memory/2116-140-0x0000000000720000-0x0000000000736000-memory.dmp	asyncrat

Executes dropped EXE 2 IoCs

Processes:

nonono.exeClient.exe

pid process

4904 nonono.exe
2116 Client.exe

pid	process
4904	nonono.exe
2116	Client.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Image_Of_Victim.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Image_Of_Victim.exe

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

nonono.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nonono.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nonono.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nonono.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

13 ip-api.com
22 icanhazip.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1456 4904 WerFault.exe nonono.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

nonono.exe

pid process

4904 nonono.exe
4904 nonono.exe
4904 nonono.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

nonono.exeClient.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 4904 nonono.exe
Token: SeDebugPrivilege 2116 Client.exe
Token: SeSecurityPrivilege 1884 msiexec.exe

flow	ioc
13	ip-api.com
22	icanhazip.com

pid	pid_target	process	target process
1456	4904	WerFault.exe	nonono.exe

pid	process
4904	nonono.exe
4904	nonono.exe
4904	nonono.exe

description	pid	process
Token: SeDebugPrivilege	4904	nonono.exe
Token: SeDebugPrivilege	2116	Client.exe
Token: SeSecurityPrivilege	1884	msiexec.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

Image_Of_Victim.exenonono.execmd.execmd.exe

description	pid	process	target process
PID 456 wrote to memory of 4904	456	Image_Of_Victim.exe	nonono.exe
PID 456 wrote to memory of 4904	456	Image_Of_Victim.exe	nonono.exe
PID 456 wrote to memory of 4904	456	Image_Of_Victim.exe	nonono.exe
PID 456 wrote to memory of 2116	456	Image_Of_Victim.exe	Client.exe
PID 456 wrote to memory of 2116	456	Image_Of_Victim.exe	Client.exe
PID 4904 wrote to memory of 2148	4904	nonono.exe	cmd.exe
PID 4904 wrote to memory of 2148	4904	nonono.exe	cmd.exe
PID 4904 wrote to memory of 2148	4904	nonono.exe	cmd.exe
PID 2148 wrote to memory of 3988	2148	cmd.exe	chcp.com
PID 2148 wrote to memory of 3988	2148	cmd.exe	chcp.com
PID 2148 wrote to memory of 3988	2148	cmd.exe	chcp.com
PID 2148 wrote to memory of 2908	2148	cmd.exe	netsh.exe
PID 2148 wrote to memory of 2908	2148	cmd.exe	netsh.exe
PID 2148 wrote to memory of 2908	2148	cmd.exe	netsh.exe
PID 2148 wrote to memory of 4124	2148	cmd.exe	findstr.exe
PID 2148 wrote to memory of 4124	2148	cmd.exe	findstr.exe
PID 2148 wrote to memory of 4124	2148	cmd.exe	findstr.exe
PID 4904 wrote to memory of 3600	4904	nonono.exe	cmd.exe
PID 4904 wrote to memory of 3600	4904	nonono.exe	cmd.exe
PID 4904 wrote to memory of 3600	4904	nonono.exe	cmd.exe
PID 3600 wrote to memory of 4732	3600	cmd.exe	chcp.com
PID 3600 wrote to memory of 4732	3600	cmd.exe	chcp.com
PID 3600 wrote to memory of 4732	3600	cmd.exe	chcp.com
PID 3600 wrote to memory of 2824	3600	cmd.exe	netsh.exe
PID 3600 wrote to memory of 2824	3600	cmd.exe	netsh.exe
PID 3600 wrote to memory of 2824	3600	cmd.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

nonono.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nonono.exe

outlook_win_path 1 IoCs

Processes:

nonono.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nonono.exe

C:\Users\Admin\AppData\Local\Temp\Image_Of_Victim.exe
"C:\Users\Admin\AppData\Local\Temp\Image_Of_Victim.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:456

C:\nonono.exe
"C:\nonono.exe"
2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4904

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
3⤵
- Suspicious use of WriteProcessMemory
PID:2148

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:3988

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
4⤵
PID:2908

C:\Windows\SysWOW64\findstr.exe
findstr All
4⤵
PID:4124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 2148
3⤵
- Program crash
PID:1456

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
3⤵
- Suspicious use of WriteProcessMemory
PID:3600

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:4732

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
4⤵
PID:2824

C:\Client.exe
"C:\Client.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4904 -ip 4904
1⤵
PID:3884

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1884

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Client.exe
Filesize
63KB

MD5
bf1e0b700f4955c1bf6ff3d5cd010658

SHA1
6919b4a8c0443b02846717e0764e7052b34c00c2

SHA256
ce44ab513606e6ba64fee7a9f5d5cd236b57dc856374578dca043d84e00d8541

SHA512
c6168ee1ceb98c3eca66b6aa1f5503849dc94e357da016dd5a1a6697337a68fc57bc3d4cc83dbdb74b4ed2b959a0b1099c18e93470db53d339bfbe0858b20844

Download Submit
C:\Client.exe
Filesize
63KB

MD5
bf1e0b700f4955c1bf6ff3d5cd010658

SHA1
6919b4a8c0443b02846717e0764e7052b34c00c2

SHA256
ce44ab513606e6ba64fee7a9f5d5cd236b57dc856374578dca043d84e00d8541

SHA512
c6168ee1ceb98c3eca66b6aa1f5503849dc94e357da016dd5a1a6697337a68fc57bc3d4cc83dbdb74b4ed2b959a0b1099c18e93470db53d339bfbe0858b20844

Download Submit
C:\nonono.exe
Filesize
1.5MB

MD5
174800448060da1f551c0e234d0337f6

SHA1
5c395ac0840c2abba7e18afa1080b22a8bfc5d12

SHA256
6be7871b1acc611b7703d1c0441e1cefb0024a5cde20bbcf9406fd8296e3b690

SHA512
0ff91582a3d89ba03f76ca845aec9dfd540d17d9f34a5935b71a947e89e716f9cb3af2e8302bad68be48a6644b7ac4812945759134fcf17bc3d196b70d83ca2a

Download Submit
C:\nonono.exe
Filesize
1.5MB

MD5
174800448060da1f551c0e234d0337f6

SHA1
5c395ac0840c2abba7e18afa1080b22a8bfc5d12

SHA256
6be7871b1acc611b7703d1c0441e1cefb0024a5cde20bbcf9406fd8296e3b690

SHA512
0ff91582a3d89ba03f76ca845aec9dfd540d17d9f34a5935b71a947e89e716f9cb3af2e8302bad68be48a6644b7ac4812945759134fcf17bc3d196b70d83ca2a

Download Submit
memory/2116-151-0x00007FFCC3800000-0x00007FFCC42C1000-memory.dmp

Filesize
10.8MB

Download
memory/2116-137-0x0000000000000000-mapping.dmp

Download
memory/2116-140-0x0000000000720000-0x0000000000736000-memory.dmp

Filesize
88KB

Download
memory/2116-141-0x00007FFCC3800000-0x00007FFCC42C1000-memory.dmp

Filesize
10.8MB

Download
memory/2148-143-0x0000000000000000-mapping.dmp

Download
memory/2824-150-0x0000000000000000-mapping.dmp

Download
memory/2908-146-0x0000000000000000-mapping.dmp

Download
memory/3600-148-0x0000000000000000-mapping.dmp

Download
memory/3988-145-0x0000000000000000-mapping.dmp

Download
memory/4124-147-0x0000000000000000-mapping.dmp

Download
memory/4732-149-0x0000000000000000-mapping.dmp

Download
memory/4904-144-0x0000000007F00000-0x00000000084A4000-memory.dmp

Filesize
5.6MB

Download
memory/4904-132-0x0000000000000000-mapping.dmp

Download
memory/4904-142-0x00000000077B0000-0x0000000007842000-memory.dmp

Filesize
584KB

Download
memory/4904-136-0x0000000005660000-0x00000000056C6000-memory.dmp

Filesize
408KB

Download
memory/4904-135-0x0000000000B10000-0x0000000000C94000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads