MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5c98bb2d9391ffb93eea1ff796c1c924493c8e58160278c4ffe7ed3ba234ed2. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: b5c98bb2d9391ffb93eea1ff796c1c924493c8e58160278c4ffe7ed3ba234ed2
SHA3-384 hash: 426165118769fd4aed603171f66d5c38a774e4fd82ee27b9a749bb1e5cd1d03f30362ca9043ea5e23b38613366588d2d
SHA1 hash: 90f2fa2c1e4e71113c5ab5e1e01fa8e4ddb3dc18
MD5 hash: 84c6b6272b03ff5f493b180b6f5ab58f
humanhash: failed-red-pizza-bluebird
File name:b5c98bb2d9391ffb93eea1ff796c1c924493c8e58160278c4ffe7ed3ba234ed2
Download: download sample
Signature AsyncRAT
File size:466'944 bytes
First seen:2021-02-28 07:19:22 UTC
Last seen:2021-02-28 08:59:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:qZWRuX7yWI+cskd6MbZDS5Z58rQNOh2Q1CAkRTXtXk//xbyHaEQdmf3JKiU4NO:q8EEDz05j8cQr0Thk/5y8dmf3JKiU
Threatray 1'827 similar samples on MalwareBazaar
TLSH CAA4067C313075BEC41E88739A549C20A6207426473FF132AB53F19C950E6B6AE5FDAE
Reporter JAMESWT_WT
Tags:AsyncRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b5c98bb2d9391ffb93eea1ff796c1c924493c8e58160278c4ffe7ed3ba234ed2
Verdict:
Malicious activity
Analysis date:
2021-02-28 08:36:53 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
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Connection attempt
Enabling autorun by creating a file
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:
100 / 100
Signature
Binary contains a suspicious time stamp
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-02-23 16:12:21 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
52.148.154.111:2070
Unpacked files
SH256 hash:
22d62a281f109e4aacc6add67a2be3efc1d836b36c08ca9dec2511a559b09b39
MD5 hash:
6439fca7268cea22f9bb0d777a6a2df8
SHA1 hash:
f66f9fa3f972482a5a4d321a898e6c80eb82621d
SH256 hash:
946d147f561532fa0e014b095adc3f7ba8d87f1a42144dc62228d7c4cca3ac83
MD5 hash:
d5b63d217998a7e12b437f61bd6469c7
SHA1 hash:
a86def52799366811886a3edb3032946cb21edf1
Detections:
win_asyncrat_w0
SH256 hash:
f0a09c48af16c079c37ad0914f18897976357981fe5ee6f556ab9f9f70b9a671
MD5 hash:
f984a71581f6da5732110be2a569a392
SHA1 hash:
10de05b6b35fc5dbc00c42d59a4b850bcaae01e6
SH256 hash:
b5c98bb2d9391ffb93eea1ff796c1c924493c8e58160278c4ffe7ed3ba234ed2
MD5 hash:
84c6b6272b03ff5f493b180b6f5ab58f
SHA1 hash:
90f2fa2c1e4e71113c5ab5e1e01fa8e4ddb3dc18
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:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Reverse_text_bin_mem
Author:James_inthe_box
Description:Reverse text detected
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.

Comments