MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8
SHA3-384 hash: 1fec1c82e22314a1388ffb57eb4a026637133c8748ad3d9491f5e0e2bb28daed3d2d5c4d3aebdad49dd65a37c47ed3e6
SHA1 hash: 045f48f35159e232c0aa100e3fc566e0a4b4060f
MD5 hash: 0f6a7323fb09a98ee204e42a4695dfd9
humanhash: magazine-speaker-seventeen-alpha
File name:0f6a7323fb09a98ee204e42a4695dfd9
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:46'592 bytes
First seen:2024-03-31 07:35:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 768:0u7oVTltoJS+WUY/mUmo2qRB+GtCVnJtHuPI+zjbIgX3iot95ukpgiOQkwaSBwB0:0u7oVTltSQ22+TB3+3bfXSot9JpFod09
TLSH T10B232B0037E88237F2BE4F78A8F26145867AF6633603D54E6CC441D75623FC696426FA
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter zbetcheckin
Tags:32 AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
315
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8.exe
Verdict:
Malicious activity
Analysis date:
2024-03-31 07:41:38 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/5859ecd2-7b43-4c6a-97e0-1ee509cd1563

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
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Connection attempt
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat config-extracted lolbin njrat reg schtasks
Link:
https://www.filescan.io/uploads/66091263ec04992a87d49f98/reports/11d6ae11-848d-4ac3-bd9a-022b5e323b7a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8
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/6ff61d98-66c7-441c-adf2-d0d8d197a34d
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1417964
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1417964 Sample: 9sSx6u3Hhp.exe Startdate: 31/03/2024 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus / Scanner detection for submitted sample 2->37 39 7 other signatures 2->39 7 dfdgfgfgfg.exe 2 2->7         started        11 9sSx6u3Hhp.exe 7 2->11         started        process3 dnsIp4 31 185.196.10.233, 7707, 8808 SIMPLECARRIERCH Switzerland 7->31 41 Antivirus detection for dropped file 7->41 43 Multi AV Scanner detection for dropped file 7->43 45 Machine Learning detection for dropped file 7->45 29 C:\Users\user\AppData\...\dfdgfgfgfg.exe, PE32 11->29 dropped 14 cmd.exe 1 11->14         started        17 cmd.exe 1 11->17         started        file5 signatures6 process7 signatures8 47 Uses schtasks.exe or at.exe to add and modify task schedules 14->47 19 conhost.exe 14->19         started        21 schtasks.exe 1 14->21         started        23 dfdgfgfgfg.exe 3 17->23         started        25 conhost.exe 17->25         started        27 timeout.exe 1 17->27         started        process9
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-03-31 08:02:09 UTC
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vmydh5qi7loa7ofwz2tgnsflwiavqm2vfiqc5wh2rn4vihai4sua._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/240331-je84vagf77/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Delays execution with timeout.exe
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
185.196.10.233:6606
185.196.10.233:7707
185.196.10.233:8808
Unpacked files
SH256 hash:
ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8
MD5 hash:
0f6a7323fb09a98ee204e42a4695dfd9
SHA1 hash:
045f48f35159e232c0aa100e3fc566e0a4b4060f
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
asyncrat
Create hunting rule
Link:
https://www.unpac.me/results/517722db-6215-4346-bfd5-4e4fbfbd46ab/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ab3033f608fa/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/ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8

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:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_bytecodes
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_unobfuscated
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
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 ab3033f608fadc0fb8b6cea666c8abb2015833552a202ed8fa8b79541c08e4a8

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2797147/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments


Avatar
zbet commented on 2024-03-31 07:35:09 UTC

url : hxxp://185.196.10.233/ytgytftf.exe