MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 590e531489556cfb9de022bc52bce2489c3609e693209c59fdce5698c6fc0be3. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AsyncRAT


Vendor detections: 12


Intelligence 12 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 590e531489556cfb9de022bc52bce2489c3609e693209c59fdce5698c6fc0be3
SHA3-384 hash: 96f7fe36f93eaec0dce1a7ec5b022e21ee4b8ad7985b08498e359fee228574e52ed3d97dabfdbc03768d4d3a373bf113
SHA1 hash: d3ab674af393662908833009828e7dc3df9fad82
MD5 hash: a55e103a9e4d7ba8bd072dba835701ea
humanhash: hawaii-oregon-diet-dakota
File name:A55E103A9E4D7BA8BD072DBA835701EA.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:503'296 bytes
First seen:2021-07-04 00:01:26 UTC
Last seen:2021-08-31 10:21:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:a+9pxoiGPTyqR+gV+a2JjkEGcKqT0WH545k:VvHGPEgV+vjHGcKs0Q545k
TLSH 31B4122079FD51A5C2B79D7A21F87145977DB33A6A1BD14C28C2428E0CD3B82CEE1F5A
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
45.144.154.150:5900

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
45.144.154.150:5900 https://threatfox.abuse.ch/ioc/157473/

Intelligence

File Origin
# of uploads :
2
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
A55E103A9E4D7BA8BD072DBA835701EA.exe
Verdict:
Malicious activity
Analysis date:
2021-07-04 00:02:48 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/0184422e-3085-4c77-8267-9ba6c6b31402

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/169527/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.900-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cf4e4f60-13a0-4be9-9bb6-3f535f148471
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/811475
Signature
.NET source code contains very large strings
Allocates memory in foreign processes
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Detected unpacking (overwrites its own PE header)
Drops PE files to the startup folder
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 443886 Sample: B6tFTmWwt8.exe Startdate: 04/07/2021 Architecture: WINDOWS Score: 100 82 whatsmyipaddress.biz 2->82 84 prda.aadg.msidentity.com 2->84 86 4 other IPs or domains 2->86 98 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->98 100 Multi AV Scanner detection for domain / URL 2->100 102 Antivirus detection for dropped file 2->102 104 11 other signatures 2->104 12 B6tFTmWwt8.exe 3 2->12         started        signatures3 process4 file5 78 C:\Users\user\AppData\...\B6tFTmWwt8.exe.log, ASCII 12->78 dropped 112 Writes to foreign memory regions 12->112 114 Allocates memory in foreign processes 12->114 116 Injects a PE file into a foreign processes 12->116 16 MSBuild.exe 2 7 12->16         started        signatures6 process7 dnsIp8 80 alemdar571.duckdns.org 45.144.154.150, 18, 49730, 49733 CMCSUS Germany 16->80 64 C:\Users\user\AppData\Local\Temp\vqtblm.exe, PE32+ 16->64 dropped 66 C:\Users\user\AppData\Local\Temp\rdpjsv.exe, PE32 16->66 dropped 68 C:\Users\user\AppData\Local\Temp\kbocrp.exe, PE32 16->68 dropped 70 C:\Users\user\AppData\Local\Temp\efjnxz.exe, PE32 16->70 dropped 94 Tries to harvest and steal browser information (history, passwords, etc) 16->94 21 cmd.exe 1 16->21         started        24 cmd.exe 1 16->24         started        26 cmd.exe 1 16->26         started        28 cmd.exe 1 16->28         started        file9 signatures10 process11 signatures12 106 Suspicious powershell command line found 21->106 108 Bypasses PowerShell execution policy 21->108 30 powershell.exe 15 21->30         started        32 conhost.exe 21->32         started        34 powershell.exe 8 24->34         started        37 conhost.exe 24->37         started        39 powershell.exe 8 26->39         started        41 conhost.exe 26->41         started        43 powershell.exe 5 28->43         started        45 conhost.exe 28->45         started        process13 signatures14 47 rdpjsv.exe 11 30->47         started        96 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 34->96 process15 dnsIp16 88 192.168.2.1 unknown unknown 47->88 58 C:\Users\user\AppData\Local\...\Process.exe, PE32 47->58 dropped 60 C:\Users\user\AppData\Local\...\Defender.exe, PE32+ 47->60 dropped 62 C:\Users\user\AppData\Local\...\Bypass.exe, PE32 47->62 dropped 90 Multi AV Scanner detection for dropped file 47->90 92 Detected unpacking (overwrites its own PE header) 47->92 52 cmd.exe 47->52         started        file17 signatures18 process19 file20 72 C:\Users\user\AppData\Roaming\...\Process.exe, PE32 52->72 dropped 74 C:\Users\user\AppData\...\Defender.exe, PE32+ 52->74 dropped 76 C:\Users\user\AppData\Roaming\...\Bypass.exe, PE32 52->76 dropped 110 Drops PE files to the startup folder 52->110 56 conhost.exe 52->56         started        signatures21 process22
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/590e531489556cfb9de022bc52bce2489c3609e693209c59fdce5698c6fc0be3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-01 07:40:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
24 of 46 (52.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lehfgfejkvwpxhpaek6ffphcjcodmcpgsmqjywp5zzljrrx4bprq._file
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat pyinstaller rat spyware stealer
Link:
https://tria.ge/reports/210704-gy27695kcn/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Detects Pyinstaller
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
alemdar571.duckdns.org:59
alemdar571.duckdns.org:18
alemdar571.duckdns.org:4784
alemdar571.duckdns.org:5900
Unpacked files
SH256 hash:
0debc5bbfba9b3d36f738a505c5cef6af34039889677d2ad85f2ff0c35097467
MD5 hash:
3e51f8f4477d2442900c52629249016c
SHA1 hash:
ea198237a5863d4e590cc16f9826e9dc8d906ac4
Link:
https://www.unpac.me/results/e2bde49b-a16a-481f-abb8-2624bf467cfd/
SH256 hash:
b6e1057c8cf1479b53decb198e2d8185342f2f268d5e10b2fb6bea80aa469a62
MD5 hash:
9a94a054db6f1fd8c2e6ab4e573fee11
SHA1 hash:
a1ad8f5d1564d73e87210e187f9107f98e897629
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/e2bde49b-a16a-481f-abb8-2624bf467cfd/
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/e2bde49b-a16a-481f-abb8-2624bf467cfd/
SH256 hash:
590e531489556cfb9de022bc52bce2489c3609e693209c59fdce5698c6fc0be3
MD5 hash:
a55e103a9e4d7ba8bd072dba835701ea
SHA1 hash:
d3ab674af393662908833009828e7dc3df9fad82
Link:
https://www.unpac.me/results/e2bde49b-a16a-481f-abb8-2624bf467cfd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/590e531489556cfb9de022bc52bce2489c3609e693209c59fdce5698c6fc0be3

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:pe_imphash
Create hunting rule
Rule name:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/169527/

Comments