MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c73b434afd1074cd367b181cedd3cb55e69bb5d12594c3d2101d0b87c56e1013. 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 1 YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c73b434afd1074cd367b181cedd3cb55e69bb5d12594c3d2101d0b87c56e1013
SHA3-384 hash: 26aaf9f0bb436abd8f45a5d2ced33b25a613772471bfab93eb4c9ad13acbf43f569fb2a4f642a4d4faf77d8a8cf948fa
SHA1 hash: 4b712c7264f2876f2fd0a008f447249f0c72f8c6
MD5 hash: 16609b7e943425e34516d348b188c70c
humanhash: october-utah-river-cold
File name:16609B7E943425E34516D348B188C70C.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:78'968 bytes
First seen:2021-03-23 08:17:47 UTC
Last seen:2021-03-23 09:36:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:UwMenguRpZpeg/tqef59LPUXawGfl9UWTHwsNxzWADPo+vGflvx/FIwJGun51u3D:OenZvp339LiPe
Threatray 177 similar samples on MalwareBazaar
TLSH 087315D689D0ABD2ECDEFBB050EAA725B59054E12019450721E7B98A6CC3FF51ECC81F
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
105.157.61.204:81

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
105.157.61.204:81 https://threatfox.abuse.ch/ioc/4588/

Intelligence

File Origin
# of uploads :
2
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
16609B7E943425E34516D348B188C70C.exe
Verdict:
Malicious activity
Analysis date:
2021-03-23 09:06:14 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/b1200677-d229-4ede-a6b6-bd376431eea0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/126480/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.135.29704.16153.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Moving a recently created file
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Sending a UDP request
Creating a file in the Windows subdirectories
Creating a window
Running batch commands
Unauthorized injection to a recently created process
Setting a single autorun event
Blocking the User Account Control
Adding exclusions to Windows Defender
Enabling autorun by creating a file
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.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/649686
Signature
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Creates files in alternative data streams (ADS)
Drops PE files to the startup folder
Drops PE files with benign system names
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell adding suspicious path to exclusion list
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to delay execution (extensive OutputDebugStringW loop)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 373803 Sample: KVDgamEP6b.exe Startdate: 23/03/2021 Architecture: WINDOWS Score: 100 49 burk2n.dynu.net 105.157.61.204, 49729, 81 MT-MPLSMA Morocco 2->49 51 jejendjcjfhh.com 2->51 63 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->63 65 Multi AV Scanner detection for domain / URL 2->65 67 Multi AV Scanner detection for dropped file 2->67 69 6 other signatures 2->69 8 KVDgamEP6b.exe 24 16 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 9 1 2->15         started        17 5 other processes 2->17 signatures3 process4 dnsIp5 55 jejendjcjfhh.com 172.67.207.35, 443, 49699, 49720 CLOUDFLARENETUS United States 8->55 57 104.21.22.219, 443, 49701, 49723 CLOUDFLARENETUS United States 8->57 41 C:\Windows\Cursors\...\svchost.exe, PE32 8->41 dropped 43 C:\Users\user\AppData\...\nEIAhNmNbJWyD.exe, PE32 8->43 dropped 45 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 8->45 dropped 47 3 other files (2 malicious) 8->47 dropped 71 Creates files in alternative data streams (ADS) 8->71 73 Drops PE files to the startup folder 8->73 75 Creates an autostart registry key pointing to binary in C:\Windows 8->75 79 5 other signatures 8->79 19 nEIAhNmNbJWyD.exe 8->19         started        22 AdvancedRun.exe 1 8->22         started        24 powershell.exe 8 8->24         started        26 7 other processes 8->26 77 Changes security center settings (notifications, updates, antivirus, firewall) 13->77 59 127.0.0.1 unknown unknown 15->59 file6 signatures7 process8 dnsIp9 53 jejendjcjfhh.com 19->53 28 AdvancedRun.exe 22->28         started        31 conhost.exe 24->31         started        33 conhost.exe 26->33         started        35 conhost.exe 26->35         started        37 conhost.exe 26->37         started        39 2 other processes 26->39 process10 dnsIp11 61 192.168.2.1 unknown unknown 28->61
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c73b434afd1074cd367b181cedd3cb55e69bb5d12594c3d2101d0b87c56e1013/
Threat name:
ByteCode-MSIL.Trojan.Disfa
Create hunting rule
Status:
Malicious
First seen:
2021-03-20 00:48:34 UTC
AV detection:
9 of 28 (32.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=y45ugsx5cb2m2nt3daoo3u6lkxtjxnorewkmhuqqdufyprlocajq._file
Verdict:
malicious
Similar samples:
1a2beaadeb5f9bc79af30c8a9e458bff69d4b481b305451afe68d0f1a9074da1
AsyncRAT
2760abb67bdb754b7e7878df83549c332785054b337800e7598a4f394a81da12
AsyncRAT
4570649013c21a25f6e926d8e0b37fadd0120425b3e0215a69dd9e00fa358f8a
AsyncRAT
5abccf199b1e503db7c810a9dcbe1310b6a6b78441b091dae6f45c92d3c3add1
AsyncRAT
65a37fc31e46339de5ede41f1976ee5860f9c54573a510b6a73789c9ece66588
AsyncRAT
766aab7b9f0e374b2e8810bf5c3e2c60aa28fa968112dff3634bbdbdc3f0a490
AsyncRAT
869147dc42f117713c1b9070d615deda8ff7d7baf8c5baea4ccee3c21829fa96
AsyncRAT
9e6fdb6456dfaf737767adb44ebdb84910cec8be91a12c2b7a37c84b5aed6104
AsyncRAT
a0ebcb3078763eb8acca534831ef9ca1a213347328698aa3cda7c5bd23cd81d8
AsyncRAT
c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde
AsyncRAT
+ 167 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat evasion rat trojan
Link:
https://tria.ge/reports/210323-m69k38vq92/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Drops startup file
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:
burk2n.dynu.net:81
:81
Unpacked files
SH256 hash:
c73b434afd1074cd367b181cedd3cb55e69bb5d12594c3d2101d0b87c56e1013
MD5 hash:
16609b7e943425e34516d348b188c70c
SHA1 hash:
4b712c7264f2876f2fd0a008f447249f0c72f8c6
Link:
https://www.unpac.me/results/9af7e92a-788c-4b77-842f-a478b6b469e4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.10
Link:
https://yomi.yoroi.company/submissions/c73b434afd1074cd367b181cedd3cb55e69bb5d12594c3d2101d0b87c56e1013

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: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

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/126480/

Comments