MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e41faf25600fc13786305884c4bf12e3e0a4846edfe2617ae151e0194dddad64. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: e41faf25600fc13786305884c4bf12e3e0a4846edfe2617ae151e0194dddad64
SHA3-384 hash: 74bfd680497058be4a57b08e61c84abba75d20694fab5a24caace046b316b95e4d60f08920a5617c3859ae6022bfdf7e
SHA1 hash: 0c6c423537144387cd8bc74d933ada4a8a3edc3c
MD5 hash: 58f413be5d7d6dd6e5d98cac4ed119e7
humanhash: uranus-timing-mexico-bacon
File name:FedEx Shipment 427781339903.bat
Download: download sample
Signature AsyncRAT
File size:317'440 bytes
First seen:2021-02-23 15:55:52 UTC
Last seen:2021-02-23 18:06:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:tsVPOZvVivwXUOlYoXpc8hqteq5yr9ockbJh0CD2aiN:tsVPEdivwXUgpZdh65yr9oc+h0C6aG
Threatray 674 similar samples on MalwareBazaar
TLSH 47649D0423EC920CE17A7B3059B0955F43F6B926D623DA1F7DD4259F1C32E418B62B63
Reporter abuse_ch
Tags:AsyncRAT bat FedEx RAT


Avatar
abuse_ch
Malspam distributing AsyncRAT:

HELO: server.desenvolvertalentos.online
Sending IP: 85.187.151.235
From: trackingupdates@fedex.com <trackingupdates@fedex.com>
Subject: FedEx Shipment 427781339903 Notification
Attachment: FedEx Shipment 427781339903.zip (contains "FedEx Shipment 427781339903.bat")

Intelligence


File Origin
# of uploads :
2
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
.NET source code contains potential unpacker
.NET source code contains very large strings
Injects a PE file into a foreign processes
Multi AV Scanner detection for domain / URL
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-02-23 13:30:05 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
severdops.ddns.net:6204
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
SH256 hash:
e41faf25600fc13786305884c4bf12e3e0a4846edfe2617ae151e0194dddad64
MD5 hash:
58f413be5d7d6dd6e5d98cac4ed119e7
SHA1 hash:
0c6c423537144387cd8bc74d933ada4a8a3edc3c
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: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.

Malspam

AsyncRAT

Executable exe e41faf25600fc13786305884c4bf12e3e0a4846edfe2617ae151e0194dddad64

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments