MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a23b855dc946b928e43076e86a0793930c9c33cdc3ace6ad4e3ef208b058b28. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a23b855dc946b928e43076e86a0793930c9c33cdc3ace6ad4e3ef208b058b28
SHA3-384 hash: 4c71279aa35aa2f041cac3c610a21480427f20dd6da8aa4cadb81b8fbc10013650d58603d30d9f91812e9d432c919ba6
SHA1 hash: f5db91cdc48241b837d165c9bc19a1c84949d24d
MD5 hash: 346b04a5d1b4773ec4b3000655d7c578
humanhash: ink-seven-fillet-stream
File name:346b04a5d1b4773ec4b3000655d7c578.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:104'960 bytes
First seen:2022-11-05 06:25:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:8FUKGF4wwDtn6wmj87tIz/lgXjErAVfhCZqPEbjH26V6H:8FeFFwDRPNaz/W8UfgZqMjH26m
Threatray 3'083 similar samples on MalwareBazaar
TLSH T17BA33A0B86D4B9EDE42BA6B35D5B9E4EA628BD636D09CF012261071F50620CFF247D93
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
20.8.122.174:31682

Intelligence

File Origin
# of uploads :
1
# of downloads :
181
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
WindowsSeissonManage.exe
Verdict:
Malicious activity
Analysis date:
2022-11-05 03:11:42 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/be300e97-568f-4d75-aeed-b23b20f585e6

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/328976/
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.14.1872.5525.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Creating a window
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Сreating synchronization primitives
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636601fb15611f8d8bf8f39a/reports/0d882c32-7a22-4a38-9639-073d97bdf4d5/overview
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a5d2c372-6cc4-4d99-8259-8dfdd9d74393
Result
Threat name:
AsyncRAT, PhoenixRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1106021
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected PhoenixRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 738685 Sample: Cr7qQ2IiI6.exe Startdate: 05/11/2022 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 10 other signatures 2->44 8 Cr7qQ2IiI6.exe 3 2->8         started        12 WindowsSeissonManage.exe 2 2->12         started        14 WindowsSeissonManage.exe 1 2->14         started        process3 file4 34 C:\Users\user\AppData\...\Cr7qQ2IiI6.exe.log, CSV 8->34 dropped 46 Writes to foreign memory regions 8->46 48 Allocates memory in foreign processes 8->48 50 Injects a PE file into a foreign processes 8->50 16 RegAsm.exe 5 8->16         started        19 RegAsm.exe 8->19         started        21 conhost.exe 12->21         started        23 conhost.exe 14->23         started        signatures5 process6 file7 32 C:\Users\user\...\WindowsSeissonManage.exe, PE32 16->32 dropped 25 RegAsm.exe 2 16->25         started        28 powershell.exe 1 12 16->28         started        process8 dnsIp9 36 20.8.122.174, 31682, 49691 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 25->36 30 conhost.exe 28->30         started        process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1a23b855dc946b928e43076e86a0793930c9c33cdc3ace6ad4e3ef208b058b28/
Threat name:
ByteCode-MSIL.Hacktool.ResInject
Create hunting rule
Status:
Malicious
First seen:
2022-11-05 06:26:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
33 of 41 (80.49%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dir3qvo4srvzfdsda5xinidzheymtqz43q5m42wu4pxsbcyfrmua._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
4d3ab3271b4b755734734bdb45e64627d4c698bb709915bb9385eb3238dd1903
AsyncRAT
592dea4eea3a4fc6540a4c677253f3936822f9040add569257eb1878cbafecca
AsyncRAT
7ec599424a161fe942345c2336dd0cfb8c7d64e6e72b8e90efd999328b06cc04
AsyncRAT
b195c22e15188d7a28301bddfea3a6790ff522911f0eb1069292db17bcb62fa7
AsyncRAT
b79d5a2f5f011eb02665057aec937277f09aa936e15f0d4e44fae931f89d2c59
AsyncRAT
d14649ed26723ca7525ddadcf587794a3906ba9ebb090c83499f269ba2fd6ab8
AsyncRAT
db91a1f06b3434c3f86c3df429e05e39d988bc929f9c7762c4f3215a2d56fe5a
AsyncRAT
+ 3'073 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:securityhealthservi persistence rat
Link:
https://tria.ge/reports/221105-g663fsgddp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
20.8.122.174:31682
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dafe0bfe-6601-419d-a4a7-638e7edcb8cb
Unpacked files
SH256 hash:
a76276f23b1806d1c7e5373a23cfaa868cf2b512b127f12f713002cb8b469d42
MD5 hash:
5d3e563b990b1afe11914293dac26453
SHA1 hash:
4eb4062b9eeb72b8b062ce3eb3a894a0167000c8
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/e9691a8a-4853-484b-b755-17d3e9efbf1f/
Parent samples :
1a23b855dc946b928e43076e86a0793930c9c33cdc3ace6ad4e3ef208b058b28
c8a05d068f0325e63c8964274949828710fb95880e939c2c3da06a1396a11aac
SH256 hash:
d752806d62f7478c53dae41e09f10cdcac23f3f806de41100c0eb69d24cd08bf
MD5 hash:
0dd097462bb60f2a161b071d3a37f677
SHA1 hash:
09a06802a69ef68a9f529e0e5f5984300af1266d
Link:
https://www.unpac.me/results/e9691a8a-4853-484b-b755-17d3e9efbf1f/
SH256 hash:
1a23b855dc946b928e43076e86a0793930c9c33cdc3ace6ad4e3ef208b058b28
MD5 hash:
346b04a5d1b4773ec4b3000655d7c578
SHA1 hash:
f5db91cdc48241b837d165c9bc19a1c84949d24d
Link:
https://www.unpac.me/results/e9691a8a-4853-484b-b755-17d3e9efbf1f/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1a23b855dc94/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/1a23b855dc946b928e43076e86a0793930c9c33cdc3ace6ad4e3ef208b058b28

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:INDICATOR_EXE_Packed_NyanXCat_CSharpLoader
Create hunting rule
Author:ditekSHen
Description:Detects .NET executables utilizing NyanX-CAT C# Loader
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 1a23b855dc946b928e43076e86a0793930c9c33cdc3ace6ad4e3ef208b058b28

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2401206/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/328976/

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