MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cc8714ca2a553cb67d5e387d8fdbe58ec36c173305022ae800d475cd0ad54115. 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 14 File information Comments

SHA256 hash: cc8714ca2a553cb67d5e387d8fdbe58ec36c173305022ae800d475cd0ad54115
SHA3-384 hash: 415c65112107226d7eb3f28d778a0f251e92d5dfc2c6349ab420549230637f4d293cfe984176beed8011623f132e8cd0
SHA1 hash: 043e640cc9042929deeebead499d5c5cdad06a35
MD5 hash: ecbfa6d2f178ecd48636fcca0aedc5f5
humanhash: hydrogen-happy-foxtrot-uniform
File name:Dekont.scr
Download: download sample
Signature AsyncRAT
File size:1'242'603 bytes
First seen:2023-06-02 13:20:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla)
ssdeep 24576:WNA3R5drXPbrwnoJ6cYWspXzvYrD2CW5emahoxb3l0DHbDQdzIDP:35jc7msVMDxhoxT2zYyDP
Threatray 2'790 similar samples on MalwareBazaar
TLSH T17E45BD81A6D14361D06D153269ADBAF055ECFE2C1914CEDFA2F4EB69C53334FD223A22
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 70d4aacccc8ac460 (8 x AsyncRAT, 2 x QuasarRAT, 1 x njrat)
Reporter abuse_ch
Tags:AsyncRAT exe RAT scr

Intelligence


File Origin
# of uploads :
1
# of downloads :
272
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Dekont.scr
Verdict:
Suspicious activity
Analysis date:
2023-06-02 13:34:09 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process from a recently created file
Sending a custom TCP request
Creating a file
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware lolbin overlay packed setupapi.dll shdocvw.dll shell32.dll
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.
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 880620 Sample: Dekont.scr.exe Startdate: 02/06/2023 Architecture: WINDOWS Score: 84 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected AsyncRAT 2->53 55 2 other signatures 2->55 12 Dekont.scr.exe 4 10 2->12         started        process3 file4 45 C:\Users\user\AppData\...\uhbjgder.sfx.exe, PE32 12->45 dropped 15 cmd.exe 1 12->15         started        process5 process6 17 uhbjgder.sfx.exe 8 15->17         started        21 conhost.exe 15->21         started        23 WerFault.exe 15->23         started        file7 41 C:\Users\user\AppData\Local\...\uhbjgder.exe, PE32 17->41 dropped 57 Multi AV Scanner detection for dropped file 17->57 25 uhbjgder.exe 9 17->25         started        signatures8 process9 file10 43 C:\Users\user\AppData\...\uibsbgf.sfx.exe, PE32 25->43 dropped 61 Multi AV Scanner detection for dropped file 25->61 29 cmd.exe 1 25->29         started        signatures11 process12 process13 31 uibsbgf.sfx.exe 8 29->31         started        34 conhost.exe 29->34         started        file14 47 C:\Users\user\AppData\Local\...\uibsbgf.exe, PE32 31->47 dropped 36 uibsbgf.exe 1 31->36         started        process15 signatures16 59 Machine Learning detection for dropped file 36->59 39 uibsbgf.exe 36->39         started        process17
Threat name:
Win32.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2023-06-02 13:21:06 UTC
File Type:
PE (Exe)
Extracted files:
37
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:mxgroup rat
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
frontbrockmepronto.ddns.net:4343
frontbrockmepronto.ddns.net:5757
frontbrockmepronto.sytes.net:4343
frontbrockmepronto.sytes.net:5757
Unpacked files
SH256 hash:
d25ec6353651a90fe970a5fdc0cb88cab8050cf3facb23022a381e46c8e32a2c
MD5 hash:
fb02751608bf676e7ea39acf4821b59c
SHA1 hash:
913a0a73f6e58352914867ae0b5649a33f7decde
SH256 hash:
3e31fb4ce1790750227f3fcb204371b5e0f436cef9744e7aed4519f36883a05d
MD5 hash:
7f05b373c33725ab337aa90ab81c13fb
SHA1 hash:
7dc191098be91820ba5172a5f0ef993031b36554
SH256 hash:
b005e951bf30de8a175483f903d584cd3ae8c3b856eaf44704c9619f5100b4fe
MD5 hash:
5471e5bee8127a2ee7224bad12083dec
SHA1 hash:
50c65663e97c48092abdd95f7a56b57e5140c2a1
SH256 hash:
cc8714ca2a553cb67d5e387d8fdbe58ec36c173305022ae800d475cd0ad54115
MD5 hash:
ecbfa6d2f178ecd48636fcca0aedc5f5
SHA1 hash:
043e640cc9042929deeebead499d5c5cdad06a35
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:msil_suspicious_use_of_strreverse
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:pe_imphash
Rule name:SelfExtractingRAR
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Windows_Trojan_Asyncrat_11a11ba1
Author:Elastic Security
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
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.

Malspam

AsyncRAT

Executable exe cc8714ca2a553cb67d5e387d8fdbe58ec36c173305022ae800d475cd0ad54115

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments