MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d798fc1115e9b445231646cc0fdbb5e1aa248b063bdb1e5b2f64739ac3682e9c. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d798fc1115e9b445231646cc0fdbb5e1aa248b063bdb1e5b2f64739ac3682e9c
SHA3-384 hash: 4d5ba92d2f5df7b349856026e689a28f1e0138e0d15a657ded1822198b4eff75c04c867c3d22cce4b913b835660baddf
SHA1 hash: 54b53370849413eb5d040fa2e465528812e14990
MD5 hash: fda94856fea41b64688fcfa3cdb214e4
humanhash: pip-enemy-oranges-robin
File name:FedEx Shipment 427781339903.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:368'640 bytes
First seen:2021-02-23 06:56:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:Tq8j0eZRGM1ySfG5v/IUcoGm2gvxgUdCRcq43ogKHhReBwy0ihYeaIN:Tq8j0e3GM1FQv/WoJ2gvxgG39KHhWVYE
Threatray 44 similar samples on MalwareBazaar
TLSH 06747C20265CAB4EE03EBB794120521F43F16626D327E68F7DE551DB7DA2F404B72A13
Reporter abuse_ch
Tags:AsyncRAT exe 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.img (contains "FedEx Shipment 427781339903.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118456/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
SUSPICIOUS
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/614899
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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 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:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d798fc1115e9b445231646cc0fdbb5e1aa248b063bdb1e5b2f64739ac3682e9c/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-02-23 06:57:08 UTC
AV detection:
12 of 48 (25.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=26mpyeiv5g2ekiywi3ga7w5v4gvcjcyghpnr4wzpmrzzvq3if2oa._file
Verdict:
unknown
Similar samples:
00ea5bf66857a669971686b5fdc1ea0cae6395d10b9e4c449aa1f5306273659b
AsyncRAT
07dda01539775e2875eb4f74f9b9a5b0452706f68ba536b102c102adacb5f514
AsyncRAT
41cda64e265a121f8e57506fc5b51466e431786304e15216b567e01374522a25
AsyncRAT
58e859630e2c6bf67159e3749ab71038fcbcfb32ba0bbf3162d58a7fac6311eb
AsyncRAT
5d5d64a87a5d888443e8d7a25046922fa4a39fe5952a45635dd66321e616bb14
AsyncRAT
80622d6bf536ca1e21f411864d3c4af7f4ebded98ea3aeeb6c99b964b247e3ca
AsyncRAT
860203ed69fb482c0d80e484e302612a13ec876f1a591ccce9ef7f6371fef197
AsyncRAT
c024e649afaafd4d1a1ebc2c5a2c457eecd2b5994c2b78e32312eb5289b5c093
AsyncRAT
cb145909667bd181409f1e14b6b2fd00ec9f8894ffaba82bd2b1888065e6a22a
AsyncRAT
d96042b51f171f68a99d4568f311f267fe595df0add3851e162cbcee7f897edb
AsyncRAT
+ 34 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/210223-dnhek9q5ae/
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:
severdops.ddns.net:6204
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/4374c655-bb97-4433-8bdd-48992250b469/
SH256 hash:
d798fc1115e9b445231646cc0fdbb5e1aa248b063bdb1e5b2f64739ac3682e9c
MD5 hash:
fda94856fea41b64688fcfa3cdb214e4
SHA1 hash:
54b53370849413eb5d040fa2e465528812e14990
Link:
https://www.unpac.me/results/4374c655-bb97-4433-8bdd-48992250b469/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/d798fc1115e9b445231646cc0fdbb5e1aa248b063bdb1e5b2f64739ac3682e9c

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:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
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.

Malspam

AsyncRAT

img 5ac6e63d2f01e3a54f73034749bcd551d5846b5fdaaf48c9d9579a62ced3f9a9

AsyncRAT

Executable exe d798fc1115e9b445231646cc0fdbb5e1aa248b063bdb1e5b2f64739ac3682e9c

(this sample)

  
Dropped by
MD5 32992c7c5ca2d3b9f171a05cfe378d63
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118456/
  
Dropped by
SHA256 5ac6e63d2f01e3a54f73034749bcd551d5846b5fdaaf48c9d9579a62ced3f9a9

Comments