MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12d49c4521a453f6ecc3744123ce41aa2455e39806588840b553c8944dfc09df. 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 2 File information Comments
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SHA256 hash: 12d49c4521a453f6ecc3744123ce41aa2455e39806588840b553c8944dfc09df
SHA3-384 hash: 89aa30761cf7b620822d86c1511817188ce3d3edc32995997c007601f51406b4cb4e8ab0af543f59664f965dde6f5ada
SHA1 hash: 4fb3748a9d159c3d461bedf45fdcab8608689496
MD5 hash: 24703cff3b50738d47a104a1ff3ae134
humanhash: enemy-burger-nineteen-texas
File name:update.exe
Download: download sample
Signature AsyncRAT
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File size:7'680 bytes
First seen:2022-02-27 10:52:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'795 x AgentTesla, 19'693 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 96:Q0KiuJcmh1OyWLaRZzRK+cqeJGgA9DCfyqdW8enzNt:yjc8OyYG2+teJGgDrWhx
Threatray 7'390 similar samples on MalwareBazaar
TLSH T1BFF17521F3D446B1CAAB0772E87387C35635A705F48643AF6244B12B3C3239A0D65FB6
Reporter ChaplinSec
Tags:AsyncRAT exe RAT


Avatar
ChaplinSec
https://cdn.discordapp.com/attachments/919142338129965067/929429089352286248/update.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
312
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
af1e6b53fc3e4679bedd29c25e057b10.exe
Verdict:
Malicious activity
Analysis date:
2022-01-22 14:59:34 UTC
Tags:
evasion
Link:
https://app.any.run/tasks/7fe7f8a6-8055-460f-b4cc-54f675c0e249

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/245076/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.Crysan.mc.29617.30210.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a file in the Program Files subdirectories
Launching a process
Creating a process with a hidden window
Creating a file in the %temp% directory
Creating a file
Running batch commands
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fake obfuscated packed replace.exe tiny update.exe
Link:
https://www.filescan.io/uploads/621b5811dfdfa8501c654111/reports/e0aef013-d4c9-4f28-a0b3-cf638099a224/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.
Malware family:
Salma Ransomware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8866cdeb-89d5-4064-bcfe-e8031c5483fa
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/946923
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Sigma detected: Suspicius Schtasks From Env Var Folder
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 AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 579404 Sample: update.exe Startdate: 27/02/2022 Architecture: WINDOWS Score: 100 33 s1995.ddns.net 2->33 35 store-images.s-microsoft.com 2->35 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 7 other signatures 2->53 8 update.exe 15 8 2->8         started        signatures3 process4 dnsIp5 37 drive.google.com 142.250.203.110, 443, 49754, 49756 GOOGLEUS United States 8->37 39 googlehosted.l.googleusercontent.com 172.217.168.65, 443, 49757 GOOGLEUS United States 8->39 41 doc-00-bs-docs.googleusercontent.com 8->41 27 C:\Users\user\AppData\Roaming\zwindows.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\...\update.exe.log, ASCII 8->29 dropped 55 Uses schtasks.exe or at.exe to add and modify task schedules 8->55 13 cmd.exe 1 8->13         started        15 schtasks.exe 1 8->15         started        file6 signatures7 process8 process9 17 zwindows.exe 2 13->17         started        21 conhost.exe 13->21         started        23 timeout.exe 1 13->23         started        25 conhost.exe 15->25         started        dnsIp10 31 s1995.ddns.net 77.78.103.129, 5000 CASABLANCA-ASInternetCollocationProviderCZ Czech Republic 17->31 43 Antivirus detection for dropped file 17->43 45 Machine Learning detection for dropped file 17->45 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/12d49c4521a453f6ecc3744123ce41aa2455e39806588840b553c8944dfc09df/
Threat name:
Win32.Trojan.Tiggre
Create hunting rule
Status:
Malicious
First seen:
2022-01-17 15:53:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
33 of 42 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
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077c6df49bd76da44b67e4f36b3963c6d48ffce3671714d7e2769fa38c9b847e
AsyncRAT
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62325e892665a724eee56e46af33496357969451c6aa496e2b52760693c8f132
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899add4d120b60a2dad900062baabfc70d6cbb616d9f4a784e850197f580fa84
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99c1bb646297307dad07a81cc77cd283f6eb854ab9b33a322725add022528bec
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a8e0a5a7a055e7d431c3e28f77d81c9d7a4a6f3449382c7a88ae52a52091cdd7
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b92972ca085bc481bdc9fb6350815e771918814804fb37947d01e748ffa916a9
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bada7e61229d4c6bba936e8b163034b3421680c1f4ebbc69160fc96fc5bdb8ca
AsyncRAT
c78fac001f2609164233bf7bbf128228c2951ab088e241b3aa56f809b45f39eb
AsyncRAT
+ 7'380 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/220227-myzajacad9/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
s1995.ddns.net:5000
Unpacked files
SH256 hash:
12d49c4521a453f6ecc3744123ce41aa2455e39806588840b553c8944dfc09df
MD5 hash:
24703cff3b50738d47a104a1ff3ae134
SHA1 hash:
4fb3748a9d159c3d461bedf45fdcab8608689496
Link:
https://www.unpac.me/results/52eb4e98-45bd-4d0c-aed4-38b083c29df3/
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/12d49c4521a453f6ecc3744123ce41aa2455e39806588840b553c8944dfc09df

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
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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.

AsyncRAT

Executable exe bada7e61229d4c6bba936e8b163034b3421680c1f4ebbc69160fc96fc5bdb8ca

AsyncRAT

Executable exe 12d49c4521a453f6ecc3744123ce41aa2455e39806588840b553c8944dfc09df

(this sample)

  
Dropped by
SHA256 bada7e61229d4c6bba936e8b163034b3421680c1f4ebbc69160fc96fc5bdb8ca
Cape
Cape
https://www.capesandbox.com/analysis/245076/

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