MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1ff4fbaa6991440428ea8b228268b6ba82595aa8cdbcf2e7bb8a69835753b31. 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 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1ff4fbaa6991440428ea8b228268b6ba82595aa8cdbcf2e7bb8a69835753b31
SHA3-384 hash: 3b254c240c26bf319dce301b6fb72593ddd071261263ac188465ea26746cbdf90ebf204e9f279ab51ee0839a01876b8c
SHA1 hash: a0a404c6ef2dcb77f65ddf072402eeeecdd1dc2e
MD5 hash: be2d1ca01da2a323960e94dcae0d4696
humanhash: mockingbird-east-alpha-quiet
File name:Re-2181718.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:176'640 bytes
First seen:2022-06-30 12:12:52 UTC
Last seen:2022-07-11 09:02:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:FquktCWEQwoOgbf/IRFu+xN/KsMn2xjVBjN4IXQxxkSlSlSlSlSlKlfalfalfal3:Fqukx+gbuA2BvGzhVCm
Threatray 1'675 similar samples on MalwareBazaar
TLSH T1AB04B323B57CC5E6F8AC3DF49A1997642AB06E820238F157E54FBDC6E8B3223C6055C5
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 59dadadcdcdad758 (26 x AgentTesla, 2 x AsyncRAT, 1 x SnakeKeylogger)
Reporter malwarelabnet
Tags:AsyncRAT asyncrat blustealer exe

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
62.197.136.167:8808 https://threatfox.abuse.ch/ioc/740126/

Intelligence

File Origin
# of uploads :
2
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/284601/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending an HTTP GET request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62bd935382a67b6740e2490e/reports/fc91fcd4-9fe3-429f-9552-08dc3b0e78d4/overview
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.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5b2c421c-5a18-48ad-a334-cb48fe9cec5d
Result
Threat name:
AsyncRAT, BluStealer, SpyEx
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1022700
Signature
.NET source code contains potential unpacker
DLL side loading technique detected
Encrypted powershell cmdline option found
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 submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes or reads registry keys via WMI
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected BluStealer
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected SpyEx stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 655193 Sample: Re-2181718.exe Startdate: 30/06/2022 Architecture: WINDOWS Score: 100 74 Snort IDS alert for network traffic 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 8 other signatures 2->80 8 Re-2181718.exe 16 8 2->8         started        13 Aeigqqh.exe 2->13         started        15 Aeigqqh.exe 2->15         started        process3 dnsIp4 72 46.249.35.196, 49768, 49795, 49806 SERVERIUS-ASNL Netherlands 8->72 62 C:\Users\user\AppData\Roaming\...\Aeigqqh.exe, PE32 8->62 dropped 64 C:\Users\user\...\Jcsbrafiyvpxtqostory5m.exe, PE32 8->64 dropped 66 C:\Users\user\...\Aeigqqh.exe:Zone.Identifier, ASCII 8->66 dropped 68 C:\Users\user\AppData\...\Re-2181718.exe.log, ASCII 8->68 dropped 98 Encrypted powershell cmdline option found 8->98 100 Writes to foreign memory regions 8->100 102 Injects a PE file into a foreign processes 8->102 17 InstallUtil.exe 11 8->17         started        21 Jcsbrafiyvpxtqostory5m.exe 14 4 8->21         started        24 powershell.exe 14 8->24         started        26 powershell.exe 15 8->26         started        104 Machine Learning detection for dropped file 13->104 28 powershell.exe 13->28         started        30 powershell.exe 13->30         started        32 powershell.exe 15->32         started        34 powershell.exe 15->34         started        file5 signatures6 process7 dnsIp8 58 C:\Users\Public\...\sqlite3.dll, PE32 17->58 dropped 60 C:\Users\Public\...\SQLite3_StdCall.dll, PE32 17->60 dropped 82 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->82 84 Tries to harvest and steal browser information (history, passwords, etc) 17->84 86 DLL side loading technique detected 17->86 96 2 other signatures 17->96 70 192.168.2.1 unknown unknown 21->70 88 Machine Learning detection for dropped file 21->88 90 Encrypted powershell cmdline option found 21->90 92 Writes to foreign memory regions 21->92 94 Injects a PE file into a foreign processes 21->94 36 powershell.exe 21->36         started        38 powershell.exe 21->38         started        40 InstallUtil.exe 21->40         started        42 conhost.exe 24->42         started        44 conhost.exe 26->44         started        46 conhost.exe 28->46         started        48 conhost.exe 30->48         started        50 conhost.exe 32->50         started        52 conhost.exe 34->52         started        file9 signatures10 process11 process12 54 conhost.exe 36->54         started        56 conhost.exe 38->56         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1ff4fbaa6991440428ea8b228268b6ba82595aa8cdbcf2e7bb8a69835753b31/
Threat name:
ByteCode-MSIL.Trojan.SpyNoon
Create hunting rule
Status:
Malicious
First seen:
2022-06-30 09:31:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6h7u7ovgtekeaquovczcqjulnouclfnkrtn46lt3xctjqnlvhmyq._file
Verdict:
malicious
Similar samples:
0365280eb3842ba84e01d192e38be3e5b6357a6c8e178955928e7639f2b8f442
AsyncRAT
1525076c87558a452430e1a867c8e889f0f15fc658162debd2cd29c617b372c7
AsyncRAT
6d4d8c1efabcea0bd4f763950acd0274bf0c72b6f4d2c9e6ecba7a26280de45d
AsyncRAT
77053cffbf81fc755f5d119b907f63456ff18706a3274bf619315baf03411087
AsyncRAT
9242b7875b75e6a53ff5b35692c06ae820e456da6a5ed9df04d55a1c7ebb0986
AsyncRAT
a4d4f86889b389430e83bf9d7829e1c9488ac55bd4f9d226e1cc739fe43e54ec
AsyncRAT
beae6f9716a4543dfa1a0ed79ddc4ae62215a9637082c61419a15b4a066324b8
AsyncRAT
d9d77012eb626662ef5c28583d9627b5be68b69756c9f815963c3cb5b67000c7
AsyncRAT
+ 1'665 additional samples on MalwareBazaar
Result
Malware family:
blustealer
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:blustealer botnet:default persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/220630-pdqtrsahhm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
BluStealer
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
127.0.0.1:1111
62.197.136.167:6606
62.197.136.167:7707
62.197.136.167:8808
62.197.136.167:1111
Unpacked files
SH256 hash:
f1ff4fbaa6991440428ea8b228268b6ba82595aa8cdbcf2e7bb8a69835753b31
MD5 hash:
be2d1ca01da2a323960e94dcae0d4696
SHA1 hash:
a0a404c6ef2dcb77f65ddf072402eeeecdd1dc2e
Link:
https://www.unpac.me/results/01355f77-aa42-4470-9ad3-0bd605b3da73/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f1ff4fbaa699/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1ff4fbaa6991440428ea8b228268b6ba82595aa8cdbcf2e7bb8a69835753b31

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/284601/

Comments