MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59c8046d5881928e5a24722e97f5fb8a480b6039728c0e31062c62b82eca75bb. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments

SHA256 hash: 59c8046d5881928e5a24722e97f5fb8a480b6039728c0e31062c62b82eca75bb
SHA3-384 hash: 19727ba5c0fcee7878adb0b006f4f5050c74a9b6c1ebe2edcf61a6b3c62207fcd2af6e0bfde6fea0bb13dea98a41d95b
SHA1 hash: 5d024b45ee62fbda1c0dcdd60262917fad499b89
MD5 hash: 5988d22f48f495ad385810d0a4fe5f61
humanhash: eleven-delaware-tennessee-ten
File name:Receiptn.com
Download: download sample
Signature AsyncRAT
File size:1'389'568 bytes
First seen:2021-06-04 07:06:29 UTC
Last seen:2021-06-04 07:58:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'644 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 24576:k6jyHjbZrt6TjxCIIPkkM5mgl2Cm90+pf8jRX7MiTB5YrB31xME0bucnIHbdd2K:GeBCFM7vl2CW1Ip7MitMPgq7ddt
Threatray 870 similar samples on MalwareBazaar
TLSH AB553359A383C4EDD49B5B36AB3B8E4D0FAA1CA95071570E206C32BDDCB37951A700ED
Reporter abuse_ch
Tags:AsyncRAT com exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Receiptn.com
Verdict:
No threats detected
Analysis date:
2021-06-04 07:07:59 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
Sending a UDP request
Launching a process
Creating a window
Creating a process with a hidden window
Result
Verdict:
UNKNOWN
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
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Detected unpacking (changes PE section rights)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
PE file has a writeable .text section
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 429525 Sample: Receiptn.com Startdate: 04/06/2021 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->47 49 10 other signatures 2->49 8 Receiptn.exe 4 10 2->8         started        process3 file4 29 C:\Users\user\...\googlechrome.scr.exe, PE32 8->29 dropped 31 Zzjssxjurreaderdc_de_xa_crd_install.exe, PE32 8->31 dropped 33 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 8->33 dropped 35 3 other malicious files 8->35 dropped 53 Creates an undocumented autostart registry key 8->53 55 Writes to foreign memory regions 8->55 57 Allocates memory in foreign processes 8->57 59 Injects a PE file into a foreign processes 8->59 12 wscript.exe 1 8->12         started        15 wscript.exe 1 8->15         started        17 RegAsm.exe 2 8->17         started        20 RegAsm.exe 8->20         started        signatures5 process6 dnsIp7 61 Wscript starts Powershell (via cmd or directly) 12->61 63 Adds a directory exclusion to Windows Defender 12->63 22 powershell.exe 25 12->22         started        24 Zzjssxjurreaderdc_de_xa_crd_install.exe 15->24         started        37 fdhfghf.duckdns.org 194.5.98.180, 49765, 7707 DANILENKODE Netherlands 17->37 39 192.168.2.4, 443, 49228, 49257 unknown unknown 17->39 41 192.168.2.1 unknown unknown 17->41 signatures8 process9 signatures10 27 conhost.exe 22->27         started        51 Detected unpacking (changes PE section rights) 24->51 process11
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Malicious
First seen:
2021-06-03 19:37:18 UTC
AV detection:
7 of 47 (14.89%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat persistence rat
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Modifies WinLogon for persistence
Malware Config
C2 Extraction:
fdhfghf.duckdns.org:7707
:7707
Unpacked files
SH256 hash:
467f6766c0fe82abc9286b530d7fa455360c8c7f20a7f28461c54873e4e4de21
MD5 hash:
6be622c4fd3a217b3f45dcd0b1897ffe
SHA1 hash:
0d31265517b835028a81eaf4e16dd3b60d4bc874
SH256 hash:
94bf4afd3a77d76311159daa2f19643a7f7d1e2c4b37807651b328feeef34668
MD5 hash:
1115be7832a7fa6005cb06aa20cdbb5c
SHA1 hash:
d0cf4dcc15749f031b4f5631bd603daf3bae1696
SH256 hash:
268c0ce9796d90c98e0369a12563e0bd5fb11cf5a7889a06707948108eed35dd
MD5 hash:
d23e1eeb41ca901d67c5f347bbd72390
SHA1 hash:
ad1756df593fa0709cf5d02d94df5e8b6ae75c63
Detections:
win_asyncrat_w0
SH256 hash:
25bb582573d1048fe988b10aa4a14b8e4f23e1af42beece12b06b90c2c3fb747
MD5 hash:
e67f7480080a3f9d949a10ad2c285a14
SHA1 hash:
c6564b994c2d345a7a54fbe1043899bc0c064935
SH256 hash:
e32a3ddcad65dbd9183d8cef734091492fb2f59713207f50068adac776a37a58
MD5 hash:
1695f316f10c7afbf65a57fe850cd222
SHA1 hash:
41e225dd58dc1517fc9a729716014bcee464bd4d
SH256 hash:
59c8046d5881928e5a24722e97f5fb8a480b6039728c0e31062c62b82eca75bb
MD5 hash:
5988d22f48f495ad385810d0a4fe5f61
SHA1 hash:
5d024b45ee62fbda1c0dcdd60262917fad499b89
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:INDICATOR_EXE_Packed_Fody
Author:ditekSHen
Description:Detects executables manipulated with Fody
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AsyncRAT

Executable exe 59c8046d5881928e5a24722e97f5fb8a480b6039728c0e31062c62b82eca75bb

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments