MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77fc50e59287031c6d133db4018b2f1217eb32b80e8ee90832337d924bfd5b0b. 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: 15


Intelligence 15 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77fc50e59287031c6d133db4018b2f1217eb32b80e8ee90832337d924bfd5b0b
SHA3-384 hash: 61783308e223720db562c02fd59b2733ebc52004fbf250d8c18d06aa67bb8e2b1c6b843bb822e7adc5e0f9bfe7566279
SHA1 hash: e728ce68f3d702f5b2bb1d1c21412614573bd1b8
MD5 hash: 71275303276dcf40549fbee08c443b51
humanhash: don-equal-blossom-arizona
File name:ctf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:826'368 bytes
First seen:2022-06-24 20:01:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:1jJTVjEZCMG3s1W2g5CWFToMWsPKqIPxl+fuc:xYQPrC2ToNPxl+f
Threatray 4'005 similar samples on MalwareBazaar
TLSH T13C05E000098BA5DDED37AF7F882352260802E72945EC5ECA1B5B07D41EDDBEE81B7365
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 8898a2ac1c9486be (8 x AsyncRAT, 2 x SnakeKeylogger)
Reporter KdssSupport
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
228
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
http://180.214.238.186/core/ctf.exe
Verdict:
Malicious activity
Analysis date:
2022-06-24 14:47:23 UTC
Tags:
loader trojan rat asyncrat
Link:
https://app.any.run/tasks/b87a6fe7-b083-475a-81c4-4c5a6c1978c3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/283156/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b6187a1fcdba4e1a53600a/reports/fbcea62c-fb86-4777-853a-6299c65cdbf1/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/96ab0cf8-34c5-47d6-bbd9-b62736191dc2
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019571
Signature
Creates an undocumented autostart registry key
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/77fc50e59287031c6d133db4018b2f1217eb32b80e8ee90832337d924bfd5b0b/
Threat name:
ByteCode-MSIL.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-06-24 05:22:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
18 of 26 (69.23%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o76fbzmsq4bry3ithw2adczpcil6wmvyb2hoscbsgn6zes75lmfq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0b8a5cbe236a7057a2904f18480b85ce9b59b891c0a1a041516248d35760744d
AsyncRAT
1299373ec40fc1f3f16957338574a9ad51a94e62220cc8c08f1ad81dee443544
AsyncRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
AsyncRAT
1a9e9deb92ea9d2cd35f94b5b0cfaecfd353fe71d886aa0ee4da2d7b454427aa
AsyncRAT
213528a5164fcb5253010129aac3855b4b905c9c5a9514a2a2b9db7e2b592a73
AsyncRAT
2799478f81991ca4ba86ccf7a234f95199cf3743f6a1112f20666b6ce104e557
AsyncRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
AsyncRAT
bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de
AsyncRAT
ceddcfa72226e91f7435facafe6631d1385ca4d246d242d5136ac4e9462b8611
AsyncRAT
ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
AsyncRAT
+ 3'995 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/220624-yr4r8aeedp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
91.193.75.135:3030
Unpacked files
SH256 hash:
b69654739a0b9e1c168b86841193bf109f1d0610c07c959597a207c7101a76d1
MD5 hash:
054515728c7725f00c981ba476e07bba
SHA1 hash:
f018824501927da1e3f50e8d50ac52935f02b2a4
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/81d12538-395e-41c9-8160-fdf5b54a1d94/
Parent samples :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 hash:
33f3641a417d3d6b7d804e1e5b409d5e1bd9c7a053848f06ad1614863c16dbf3
MD5 hash:
f4134992c67e8c54de9d5c5241830036
SHA1 hash:
654df622813cea17f183042373d343fe4cf32438
Link:
https://www.unpac.me/results/81d12538-395e-41c9-8160-fdf5b54a1d94/
SH256 hash:
610ec53eb875b6dce58c6c6a174765ed8152e0f256dce0fc43b1eb6a2c7d5986
MD5 hash:
65ace6ff817e2a8d4ef22fe8bd775839
SHA1 hash:
532e8732449285494463519fa453e4ebcef3972e
Link:
https://www.unpac.me/results/81d12538-395e-41c9-8160-fdf5b54a1d94/
SH256 hash:
77fc50e59287031c6d133db4018b2f1217eb32b80e8ee90832337d924bfd5b0b
MD5 hash:
71275303276dcf40549fbee08c443b51
SHA1 hash:
e728ce68f3d702f5b2bb1d1c21412614573bd1b8
Link:
https://www.unpac.me/results/81d12538-395e-41c9-8160-fdf5b54a1d94/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/77fc50e59287/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/77fc50e59287031c6d133db4018b2f1217eb32b80e8ee90832337d924bfd5b0b

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:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
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: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_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
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.

Web download

AsyncRAT

Executable exe 77fc50e59287031c6d133db4018b2f1217eb32b80e8ee90832337d924bfd5b0b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2239064/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/283156/

Comments