MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec595d4dcafdd37725beb193c59e9b5b512214e047b1e5f768beb5317ab0ef5b. 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: 11


Intelligence 11 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec595d4dcafdd37725beb193c59e9b5b512214e047b1e5f768beb5317ab0ef5b
SHA3-384 hash: 66ee4fdf100cad6719cffacd1dfad1499c521ac5f416531e620d84a4323442e6fd26259014f1477d30b86a41c5b15a61
SHA1 hash: fd2b4e78efd41422792c5f4cd66e57bb0e39d8b9
MD5 hash: cffaf12162200e10f64fed1ab0d14109
humanhash: early-carpet-india-connecticut
File name:cffaf12162200e10f64fed1ab0d14109.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:1'200'640 bytes
First seen:2021-10-08 15:29:52 UTC
Last seen:2021-10-08 16:52:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:DVco/W3GmzRIX2cOFT5IhF0xV7rxVdWUBjyN/:BvWWWR66517rxDWUB
TLSH T1004533C43D10A63BD4A15BBC7865BD0A61316CE65E6CD6D3FE31B350E6BE232811C16E
File icon (PE):PE icon
dhash icon 71e888e8cce869b2 (7 x AsyncRAT, 2 x RemcosRAT, 1 x CoinMiner.XMRig)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
392
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cffaf12162200e10f64fed1ab0d14109.exe
Verdict:
Suspicious activity
Analysis date:
2021-10-08 15:48:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/889361b9-047f-4393-bcae-b3d63c891772

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/196208/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.17057.18168.22911.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6160640498a6280f3934a097/reports/54dc18c9-58ee-45c8-b50e-71a9206416d1/overview
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/867198
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Allocates memory in foreign processes
Creates autostart registry keys with suspicious names
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 499629 Sample: TWAueCcfK3.exe Startdate: 08/10/2021 Architecture: WINDOWS Score: 100 39 icacxndo.ac.ug 2->39 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected AsyncRAT 2->49 51 .NET source code contains method to dynamically call methods (often used by packers) 2->51 53 4 other signatures 2->53 9 TWAueCcfK3.exe 4 6 2->9         started        13 dada.exe 1 2->13         started        15 dada.exe 2->15         started        signatures3 process4 file5 31 C:\Users\user\AppData\Roaming\dada.exe, PE32 9->31 dropped 33 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 9->33 dropped 35 C:\Users\user\...\dada.exe:Zone.Identifier, ASCII 9->35 dropped 37 2 other malicious files 9->37 dropped 55 Creates autostart registry keys with suspicious names 9->55 57 Writes to foreign memory regions 9->57 59 Allocates memory in foreign processes 9->59 17 wscript.exe 1 9->17         started        20 RegAsm.exe 2 9->20         started        61 Machine Learning detection for dropped file 13->61 63 Injects a PE file into a foreign processes 13->63 23 RegAsm.exe 13->23         started        25 RegAsm.exe 15->25         started        signatures6 process7 dnsIp8 45 Wscript starts Powershell (via cmd or directly) 17->45 27 powershell.exe 26 17->27         started        41 icacxndo.ac.ug 194.5.98.107, 49752, 49763, 49776 DANILENKODE Netherlands 20->41 43 icando.ug 20->43 signatures9 process10 process11 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ec595d4dcafdd37725beb193c59e9b5b512214e047b1e5f768beb5317ab0ef5b/
Threat name:
ByteCode-MSIL.Keylogger.KeyBase
Create hunting rule
Status:
Malicious
First seen:
2021-10-08 12:13:17 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5rmv2tok7xjxojn6wgj4lhu3lnisefhai6y6l53ix22tc6vq55nq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/211008-sxhjaaefd6/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
61f803c9406d921974b4884a71dec14870d9f4486b08b79ad7bb3becda35d792
MD5 hash:
cf8ae85157628341778f6e551a6d2440
SHA1 hash:
f56a48a77ca8f23b28b308fc03ab2c6ac85547a8
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/283b9065-8c7c-4f6c-99a3-35e8881bb709/
SH256 hash:
13ac821384d523ce933e32f6b5b780f03a32838effdd95f325f1667440055abf
MD5 hash:
b6da646a91f02bd115209bd61d6df445
SHA1 hash:
1ba532646ea11c5b05aae1721fa3f2303614eb61
Link:
https://www.unpac.me/results/283b9065-8c7c-4f6c-99a3-35e8881bb709/
SH256 hash:
ec595d4dcafdd37725beb193c59e9b5b512214e047b1e5f768beb5317ab0ef5b
MD5 hash:
cffaf12162200e10f64fed1ab0d14109
SHA1 hash:
fd2b4e78efd41422792c5f4cd66e57bb0e39d8b9
Link:
https://www.unpac.me/results/283b9065-8c7c-4f6c-99a3-35e8881bb709/
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/ec595d4dcafdd37725beb193c59e9b5b512214e047b1e5f768beb5317ab0ef5b

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_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_zgRAT
Create hunting rule
Author:ditekSHen
Description:Detects zgRAT
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

AsyncRAT

Executable exe ec595d4dcafdd37725beb193c59e9b5b512214e047b1e5f768beb5317ab0ef5b

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/196208/
  
URLhaus
https://urlhaus.abuse.ch/url/948787/
  
Delivery method
Distributed via web download

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