MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c6f764be61e41b09c4198c7f350c40cb3b2c754390a50b335d2c310062dc777a. 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: 14


Intelligence 14 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c6f764be61e41b09c4198c7f350c40cb3b2c754390a50b335d2c310062dc777a
SHA3-384 hash: 32ee0806ec3ce3761a7bc20246becd433a1e72d73f4ff0683e329cd297b607e3d3d423f83cdedc612a3a2136b0fdef95
SHA1 hash: 18630cba04e78ea5fde6afc8d27cd99015eae96b
MD5 hash: 2bd3369e258ce530497c253550f3733b
humanhash: london-nineteen-connecticut-whiskey
File name:2bd3369e258ce530497c253550f3733b.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:4'131'776 bytes
First seen:2023-07-12 18:55:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:2EEIaVLXCugGVXY/MBy6EU11HJiqj0XqOp+9acuTwt57gFkvCOdO4rAii6GAv31L:2EEhXCufyaHJ10qg+9acuTctj
Threatray 8 similar samples on MalwareBazaar
TLSH T126166B57BD478CE1D5461B7AC5AA782403B0F68363D3E909368E33185E877B62E49E0F
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f29296968e9e9ea6 (60 x AgentTesla, 37 x RedLineStealer, 35 x Formbook)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
172.245.23.178:7777

Intelligence

File Origin
# of uploads :
1
# of downloads :
331
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
2bd3369e258ce530497c253550f3733b.exe
Verdict:
Malicious activity
Analysis date:
2023-07-12 18:57:32 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/0af201d8-e564-43dd-ab18-e82a5aa04914

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/417134/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Restart of the analyzed sample
Creating a file
Creating a window
Searching for synchronization primitives
Launching a service
Creating a file in the %AppData% directory
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed
Link:
https://www.filescan.io/uploads/64aef744a15fc7eb4fd17b1f/reports/04e54dc8-f5c6-4676-9177-d06121d93123/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c6f764be61e41b09c4198c7f350c40cb3b2c754390a50b335d2c310062dc777a
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7f2724d2-7eb0-4a50-bd91-d32f91abc7a4
Result
Threat name:
AgentTesla, AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1272004
Signature
Antivirus detection for dropped file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1272004 Sample: 5ObyoTSOyy.exe Startdate: 12/07/2023 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 12 other signatures 2->47 7 5ObyoTSOyy.exe 5 2->7         started        11 hmltog.exe 2 2->11         started        14 hmltog.exe 2 2->14         started        process3 dnsIp4 29 C:\Users\...\origin bin telegram v 4.0.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\...\5ObyoTSOyy.exe.log, ASCII 7->31 dropped 57 Injects a PE file into a foreign processes 7->57 16 origin bin telegram v 4.0.exe 17 4 7->16         started        21 5ObyoTSOyy.exe 2 7->21         started        39 api.telegram.org 11->39 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->59 61 Tries to steal Mail credentials (via file / registry access) 11->61 63 Tries to harvest and steal ftp login credentials 11->63 73 2 other signatures 11->73 65 Antivirus detection for dropped file 14->65 67 Multi AV Scanner detection for dropped file 14->67 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->69 71 Machine Learning detection for dropped file 14->71 file5 signatures6 process7 dnsIp8 35 api.telegram.org 149.154.167.220, 443, 49684, 49685 TELEGRAMRU United Kingdom 16->35 27 C:\Users\user\AppData\Roaming\...\hmltog.exe, PE32 16->27 dropped 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->49 51 Tries to steal Mail credentials (via file / registry access) 16->51 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->53 55 Installs a global keyboard hook 16->55 23 WerFault.exe 20 9 21->23         started        file9 signatures10 process11 dnsIp12 37 192.168.2.1 unknown unknown 23->37 33 C:\ProgramData\Microsoft\...\Report.wer, Unicode 23->33 dropped file13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c6f764be61e41b09c4198c7f350c40cb3b2c754390a50b335d2c310062dc777a/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-07-10 04:00:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=y33wjptb4qnqtrazrr7tkdcazm5sy5kdscsqwm25fqyqayw4o55a._file
Verdict:
malicious
Similar samples:
36dc266ad1ea8df01393368710ee6c6fd21629e833252cf0f3f63dffd908c805
AsyncRAT
39925dc9a38e74a5f56977966efc39fb124afa1bc5211fa006bbe48d836c2811
AsyncRAT
5919ae288790c1f2e0f81d6016f5f6c037738b9887d0dacfd259cac766d8e882
AsyncRAT
afd6fe04ebb90493a7a100c61428525c755575dac5f2cd377c549b19847fe7b5
AsyncRAT
c806b0e3a7c2d1efb4170931ceb91efe9e2a9d677c3e9833cae188776e01f148
AsyncRAT
fb9295be3b011faf14a3e3d382a24eb47cf8877f3fcbf2bbc598c92cf3a48181
AsyncRAT
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:asyncrat collection keylogger persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/230712-xlbzksfd61/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla payload
Async RAT payload
AgentTesla
AsyncRat
Contains code to disable Windows Defender
Malware Config
C2 Extraction:
https://api.telegram.org/bot5127674234:AAHGscjRk7JCDDCItFO4GPZfan-K7Hc89Z8/sendDocument
172.245.23.178:7777
Unpacked files
SH256 hash:
e905f314c9c136af6d4b98f16f6380466bdb391eac846b7e347753c88ca10596
MD5 hash:
a3c45eb2867e063165a017601337cd73
SHA1 hash:
223adf051d3cce72429fc35e2143d91ed06687d3
Link:
https://www.unpac.me/results/3e8063a8-5e11-4145-b77d-32fb4527fd56/
SH256 hash:
f7111d26394f314a4a2bd22b45b12dd17ba2c5b8878f570c7780ea1478030652
MD5 hash:
a203aea51548373842720ff04cf11ab8
SHA1 hash:
0caba7510e51d42085ff11972d4bad51a1ebfe8e
Link:
https://www.unpac.me/results/3e8063a8-5e11-4145-b77d-32fb4527fd56/
SH256 hash:
771d329ad2bdad783434b1109ab41f471160175f1d8ce483f8bf2d2b812bc539
MD5 hash:
3a6c7ac9fd127035a28a64211f69ff99
SHA1 hash:
0760c4c497e8485f310eb9f83d7b4799f2fd9fe9
Link:
https://www.unpac.me/results/3e8063a8-5e11-4145-b77d-32fb4527fd56/
SH256 hash:
c6f764be61e41b09c4198c7f350c40cb3b2c754390a50b335d2c310062dc777a
MD5 hash:
2bd3369e258ce530497c253550f3733b
SHA1 hash:
18630cba04e78ea5fde6afc8d27cd99015eae96b
Link:
https://www.unpac.me/results/3e8063a8-5e11-4145-b77d-32fb4527fd56/
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/c6f764be61e41b09c4198c7f350c40cb3b2c754390a50b335d2c310062dc777a

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables containing artifcats associated with disabling Widnows Defender
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defedner features
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_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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_NET_Msil_Suspicious_Use_StrReverse
Create hunting rule
Author:dr4k0nia, modified by Florian Roth
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
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.

Cape
Cape
https://www.capesandbox.com/analysis/417134/

Comments