MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3749646ab64511b608918d8aacb89dfaee1bc8a0be15247ee7e804f9f7be6627. 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 6 File information Comments
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SHA256 hash: 3749646ab64511b608918d8aacb89dfaee1bc8a0be15247ee7e804f9f7be6627
SHA3-384 hash: e7e9fe4085ea75d10d811ee17766caf6e73c7e6d39b89343246822a1d74ade1e2bb90954a4002a4d47bf5032bf21aa99
SHA1 hash: a9e4150b4ff04ee2fb39b2eb3ba8cf84430101d8
MD5 hash: b20486d665f4f34be94d6168e5d1611c
humanhash: ceiling-victor-juliet-wyoming
File name:b20486d665f4f34be94d6168e5d1611c.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:33'256 bytes
First seen:2021-02-23 16:26:06 UTC
Last seen:2021-02-23 18:06:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 384:xwTwgIu0v+BhZq4v96OxO7C1qQJ3syfNRRhWHzh/wAdo3Anp9pHhx:Uv0GzZqY9bwQFsuNbQqAd3hx
Threatray 710 similar samples on MalwareBazaar
TLSH 7DE2D68695637424E6A70A712DA0E9383B2CA735A444910EF075916CCFC3ABE74DECED
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
tfwed.duckdns.org:8050

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Detection:
DLAgent06
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118730/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.45771494.12350.15796.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
DNS request
Sending a UDP request
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a window
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Launching a service
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Adding an access-denied ACE
Creating a file
Using the Windows Management Instrumentation requests
Setting a single autorun event
Sending an HTTP GET request to an infection source
Adding exclusions to Windows Defender
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/615660
Signature
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Hides threads from debuggers
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: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 356839 Sample: RMe2JcmlSh.exe Startdate: 23/02/2021 Architecture: WINDOWS Score: 100 73 sffhgdf.duckdns.org 2->73 85 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->85 87 Multi AV Scanner detection for domain / URL 2->87 89 Multi AV Scanner detection for submitted file 2->89 91 7 other signatures 2->91 9 RMe2JcmlSh.exe 23 10 2->9         started        14 explorer.exe 2->14         started        16 explorer.exe 2->16         started        18 7 other processes 2->18 signatures3 process4 dnsIp5 83 coroloboxorozor.com 172.67.172.17, 49732, 49733, 49743 CLOUDFLARENETUS United States 9->83 61 C:\Windows\Cursors\...\svchost.exe, PE32 9->61 dropped 63 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 9->63 dropped 65 C:\Users\user\AppData\...\RMe2JcmlSh.exe.log, ASCII 9->65 dropped 67 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 9->67 dropped 93 Creates an autostart registry key pointing to binary in C:\Windows 9->93 95 Adds a directory exclusion to Windows Defender 9->95 97 Hides threads from debuggers 9->97 101 2 other signatures 9->101 20 RMe2JcmlSh.exe 9->20         started        23 AdvancedRun.exe 1 9->23         started        25 cmd.exe 9->25         started        33 2 other processes 9->33 27 svchost.exe 14->27         started        99 Drops executables to the windows directory (C:\Windows) and starts them 16->99 31 svchost.exe 16->31         started        file6 signatures7 process8 dnsIp9 75 tfwed.duckdns.org 181.141.5.139, 49745, 49769, 49773 EPMTelecomunicacionesSAESPCO Colombia 20->75 77 192.168.2.1 unknown unknown 23->77 35 AdvancedRun.exe 23->35         started        49 2 other processes 25->49 79 coroloboxorozor.com 27->79 69 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 27->69 dropped 103 Multi AV Scanner detection for dropped file 27->103 105 Adds a directory exclusion to Windows Defender 27->105 107 Hides threads from debuggers 27->107 37 powershell.exe 27->37         started        39 AdvancedRun.exe 27->39         started        41 powershell.exe 27->41         started        43 cmd.exe 27->43         started        81 coroloboxorozor.com 31->81 71 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 31->71 dropped 109 System process connects to network (likely due to code injection or exploit) 31->109 45 powershell.exe 31->45         started        47 AdvancedRun.exe 31->47         started        51 2 other processes 33->51 file10 signatures11 process12 process13 53 conhost.exe 37->53         started        55 AdvancedRun.exe 39->55         started        57 conhost.exe 41->57         started        59 conhost.exe 45->59         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3749646ab64511b608918d8aacb89dfaee1bc8a0be15247ee7e804f9f7be6627/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-23 00:45:24 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g5ewi2vwiui3mcerrwfkzoe57lxbxsfaxyksi7xh5acpt556mytq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
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fc926b2871dc293ad75ff0caf3863adc75b9342a34c1965c3991f512a2f666c8
AsyncRAT
+ 700 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat evasion persistence rat trojan
Link:
https://tria.ge/reports/210223-cq5re5zvxj/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Windows security modification
Executes dropped EXE
Async RAT payload
Nirsoft
AsyncRat
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
tfwed.duckdns.org:8050
Unpacked files
SH256 hash:
3749646ab64511b608918d8aacb89dfaee1bc8a0be15247ee7e804f9f7be6627
MD5 hash:
b20486d665f4f34be94d6168e5d1611c
SHA1 hash:
a9e4150b4ff04ee2fb39b2eb3ba8cf84430101d8
Link:
https://www.unpac.me/results/5f7a6e18-238a-4299-875f-af7ef4584feb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Backdoor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3749646ab64511b608918d8aacb89dfaee1bc8a0be15247ee7e804f9f7be6627

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Cape
Cape
https://www.capesandbox.com/analysis/118730/

Comments