MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87aca3d786166839236fffc4e179a6bade8e624a40702b934b852c4847dad382. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87aca3d786166839236fffc4e179a6bade8e624a40702b934b852c4847dad382
SHA3-384 hash: 5729fd74ae09d0830da784af6befd92f631f651dd410919cc824871b1e9b8ea3c132f153561036c160e437bafd94474a
SHA1 hash: eb0f07c5d05cb33c18f0bf244ac1f9fa614667a6
MD5 hash: 0682ba3eaad955bb2249256853cb2451
humanhash: north-whiskey-virginia-iowa
File name:file
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:227'648 bytes
First seen:2022-11-14 22:24:55 UTC
Last seen:2022-11-15 17:52:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:1zmiTFINNSNvPx/OU+FBGfjXLJfQdW8CVdKrLJ:0cxNvPx/OU+FBGfXGdxCi/J
Threatray 3'980 similar samples on MalwareBazaar
TLSH T1CF245A9D729035DFC85BC876EA982D64EBA4747BA30F4213802B15E9DE4D887CF590F2
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 30b2c4c8c8c4b030 (53 x Formbook, 41 x RemcosRAT, 20 x AgentTesla)
Reporter jstrosch
Tags:.NET AsyncRAT exe MSIL

Intelligence

File Origin
# of uploads :
3
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-11-14 22:25:30 UTC
Tags:
asyncrat trojan rat
Link:
https://app.any.run/tasks/0e446a64-5cc3-4cdd-b86b-6f13882f1b65

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/333954/
Detection(s):
SecuriteInfo.com.UntrustedCertificate.Aichost.UNOFFICIAL
Create hunting rule

Win.Dropper.LokiBot-9969312-0
Create hunting rule

PUA.Win.Packed.ConfuserEx-6391397-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/6372c04065b4ed3de8c8488f/reports/40c0104b-04de-4669-9e41-bd517a3dc9bb/overview
Result
Verdict:
UNKNOWN
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3c778d00-e753-47f0-a510-b9d65d1a0f98
Result
Threat name:
AsyncRAT, PhoenixRAT
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1113325
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Drops PE files to the startup folder
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
PE file contains section with special chars
PE file has nameless sections
Powershell drops PE file
Sigma detected: Copy file to startup via Powershell
Snort IDS alert for network traffic
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
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PhoenixRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 746022 Sample: file.exe Startdate: 14/11/2022 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Multi AV Scanner detection for domain / URL 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 17 other signatures 2->44 7 file.exe 1 2->7         started        11 SysHDFGHDHDFtem.exe 1 2->11         started        process3 file4 30 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 7->30 dropped 46 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->46 13 powershell.exe 14 7->13         started        17 RegSvcs.exe 1 4 7->17         started        48 Writes to foreign memory regions 11->48 50 Allocates memory in foreign processes 11->50 52 Injects a PE file into a foreign processes 11->52 20 powershell.exe 3 11->20         started        22 RegSvcs.exe 3 11->22         started        24 RegSvcs.exe 11->24         started        signatures5 process6 dnsIp7 32 C:\Users\user\AppData\...\SysHDFGHDHDFtem.exe, PE32 13->32 dropped 34 C:\...\SysHDFGHDHDFtem.exe:Zone.Identifier, ASCII 13->34 dropped 54 Drops PE files to the startup folder 13->54 56 Powershell drops PE file 13->56 26 conhost.exe 13->26         started        36 chinasea.duckdns.org 173.234.105.145, 49717, 49719, 5201 LEASEWEB-AS-APLEASEWEBAUSTRALIAPTYLIMITEDAU Australia 17->36 58 Tries to harvest and steal browser information (history, passwords, etc) 17->58 28 conhost.exe 20->28         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/87aca3d786166839236fffc4e179a6bade8e624a40702b934b852c4847dad382/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2022-11-14 22:25:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6wkhv4gczudsi3p77coc6ngxlpi4yskibycxe2lquweqr622oba._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0a05f8788ca28d5f4e2ad838a36f83107326d3021fc5bc9824fe2c47dfd07712
AsyncRAT
16e7ad0f3c49622609f9e31253a81fca1521fc0ec0501be9773950d500abf571
AsyncRAT
2e75072eae7fa044b3ee05b2ba378823bbfa3091ceb5612f33b637c0d0764a21
AsyncRAT
5468fe6c4a8a65ed2e4e3c101c8fd0191b9773acc51ae61da6d446057958511b
AsyncRAT
8e3079b83ab70db97e2508e7a9a57a8a5ce124b1524c6a64867b5ff33edcbdca
AsyncRAT
959e3ca2579b6be8a11c06763c5a34ec118abc96d869e25bef06319c92da465e
AsyncRAT
eee7f4dd424733c57b1fe3712d215129f3494536bf6277d1811417c8a0a1baae
AsyncRAT
f0e61a30a68cacde89ef636511dfae2b488bcbe9b47053c3afc0718d66324f70
AsyncRAT
fb5500d8ead47d2daccdc10705f398285037e115bb73380a682e8a4481715dc5
AsyncRAT
+ 3'970 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/221114-2bx7aadh84/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
chinasea.duckdns.org:5201
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3232e8a3-5d83-443e-9535-ec3ff7bded5c
Unpacked files
SH256 hash:
bfa12a2456d40d6c32a1f4e35bd43c81f6f67466234faed8fec19397d0e6d808
MD5 hash:
7a7927bac28be846b2fd2a5d10ba0676
SHA1 hash:
67a7b8616fc8e7aa7bb7a6e2521548e67a7caa2d
Link:
https://www.unpac.me/results/cf59fbd3-f5ce-4da2-8bbf-8c9fd2e14ca1/
Parent samples :
fb110b1db7c02725d6cb0953cf153a2b5e158d358db136aece90ac06d79cb07d
80dd6d009a2b7ab7aa393d063048320db5ea3920a4fd9cca4a0a76f12183273f
SH256 hash:
88493538808758c24b4ffc3892890861f2fc1dfe07079967f8da24419dbfd485
MD5 hash:
491d4783455d291256144ed9ed4f9715
SHA1 hash:
0aae86b0b0f366149694c4150d47bad1176ae65e
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/cf59fbd3-f5ce-4da2-8bbf-8c9fd2e14ca1/
Parent samples :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 hash:
87aca3d786166839236fffc4e179a6bade8e624a40702b934b852c4847dad382
MD5 hash:
0682ba3eaad955bb2249256853cb2451
SHA1 hash:
eb0f07c5d05cb33c18f0bf244ac1f9fa614667a6
Link:
https://www.unpac.me/results/cf59fbd3-f5ce-4da2-8bbf-8c9fd2e14ca1/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/87aca3d78616/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/87aca3d786166839236fffc4e179a6bade8e624a40702b934b852c4847dad382

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

AsyncRAT

Executable exe 87aca3d786166839236fffc4e179a6bade8e624a40702b934b852c4847dad382

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/333954/
  
URLhaus
https://urlhaus.abuse.ch/url/2412570/

Comments