MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d. 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: 17


Intelligence 17 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d
SHA3-384 hash: e39ccb0e44e2a4591c18dde5145ff36252909c1c18925a4f9623a53774998d6a830572670215e3faf2af856298ce71c4
SHA1 hash: 024de800be731c0134b926c12df718ed7d80b14e
MD5 hash: 0a5098857e7e92c8d76a659111dc8fcd
humanhash: alabama-ohio-xray-mike
File name:CONFIRMATION.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:1'115'831 bytes
First seen:2023-05-26 07:05:22 UTC
Last seen:2023-05-26 07:25:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla)
ssdeep 24576:wNA3R5drXwDyVxDv/+Nq91tDHabwE387OwNWLVfSB3cAL:p5W2nrDDHabwc8HupQcAL
Threatray 505 similar samples on MalwareBazaar
TLSH T192351202B6D544B3E5B329364A3AB721297C7C201F34CA6F73D47D6AC972291E225F63
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 5970620f964d1717 (3 x AsyncRAT, 1 x Formbook)
Reporter lowmal3
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
291
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
CONFIRMATION.exe
Verdict:
Malicious activity
Analysis date:
2023-05-26 07:06:05 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/74fe8860-4e40-47c2-89d6-e1827a67f94f

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/391947/
Detection(s):
Win.Dropper.QuasarRAT-9985767-0
Create hunting rule

SecuriteInfo.com.Troj.NanoCo_TZ.22029.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process from a recently created file
Sending a custom TCP request
Creating a file
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
Creating a file in the %AppData% directory
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/87992/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware lolbin overlay packed quasar setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/64705a5bc5307fa08d5d079e/reports/b17a931b-87c7-48bc-9ed9-24b4168d3dc7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d
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:
Unknown
Link:
https://analyze.intezer.com/analyses/d34904ea-8cab-4294-8251-87243b09fd5e
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1243022
Signature
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 876035 Sample: CONFIRMATION.exe Startdate: 26/05/2023 Architecture: WINDOWS Score: 100 73 Malicious sample detected (through community Yara rule) 2->73 75 Multi AV Scanner detection for submitted file 2->75 77 Yara detected AsyncRAT 2->77 79 4 other signatures 2->79 14 CONFIRMATION.exe 4 10 2->14         started        17 procs.exe 2->17         started        process3 file4 59 C:\Users\user\AppData\...\ubnlder.sfx.exe, PE32 14->59 dropped 20 cmd.exe 1 14->20         started        67 Multi AV Scanner detection for dropped file 17->67 69 Machine Learning detection for dropped file 17->69 71 Injects a PE file into a foreign processes 17->71 23 procs.exe 17->23         started        signatures5 process6 signatures7 81 Uses schtasks.exe or at.exe to add and modify task schedules 20->81 25 ubnlder.sfx.exe 8 20->25         started        29 conhost.exe 20->29         started        process8 file9 57 C:\Users\user\AppData\Local\...\ubnlder.exe, PE32 25->57 dropped 85 Multi AV Scanner detection for dropped file 25->85 31 ubnlder.exe 9 25->31         started        signatures10 process11 file12 63 C:\Users\user\AppData\...\yihgab.sfx.exe, PE32 31->63 dropped 65 Multi AV Scanner detection for dropped file 31->65 35 cmd.exe 1 31->35         started        signatures13 process14 process15 37 yihgab.sfx.exe 8 35->37         started        41 conhost.exe 35->41         started        file16 55 C:\Users\user\AppData\Local\Temp\yihgab.exe, PE32 37->55 dropped 83 Multi AV Scanner detection for dropped file 37->83 43 yihgab.exe 1 37->43         started        signatures17 process18 signatures19 87 Multi AV Scanner detection for dropped file 43->87 89 Machine Learning detection for dropped file 43->89 46 yihgab.exe 6 43->46         started        process20 file21 61 C:\Users\user\AppData\Roaming\procs.exe, PE32 46->61 dropped 49 cmd.exe 46->49         started        51 cmd.exe 46->51         started        process22 process23 53 conhost.exe 51->53         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d/
Threat name:
Win32.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-05-25 18:36:22 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o7rem7nvudqfunzvo66vubgb6xwnikbn5vm2burv6yp5sfps4wgq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
029166bde069ee02c46c3541bfe4f9ff8c97d9ff353f814c716e2d1fbdb29c1f
AsyncRAT
1de2e96d4ccbc3954e5a7932b823f268e565639a0aac20e41fae23248d32d1a2
AsyncRAT
4b1f486d39c378ffdef7e655d0a3039537081b10a1520de0ae89bfe24cdc953e
AsyncRAT
50780178c6e35fc1107aa6aacb09c6d1a46d2200f909a95836c88cb7c3651c0e
AsyncRAT
82c85f030f61b2ec5d5b7197020dc37c18ed6b0c0e1b88037d6433d8a168f7c9
AsyncRAT
94530ce58a289fbba223ab50512183f2dc1003ab227b144d6ec21c15cc427cce
AsyncRAT
b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0
AsyncRAT
d6730b5c86821069b831e8414566f9837f6b6686230f82bada788a2786309eb9
AsyncRAT
+ 495 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:mxgroup rat
Link:
https://tria.ge/reports/230526-hw3gysec54/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
frontbrockmepronto.ddns.net:4343
frontbrockmepronto.ddns.net:5757
frontbrockmepronto.sytes.net:4343
frontbrockmepronto.sytes.net:5757
Unpacked files
SH256 hash:
2c36ab9fe6ab5f76c9c7694e0b4d9b834de1f66d9fa64484f97059ad40c60309
MD5 hash:
2eea5d339b1302a62c8349570f3d7fd0
SHA1 hash:
ef1cbe3dee71e66bdeb84adf58a36de3acd8a674
Link:
https://www.unpac.me/results/4bdeeca5-43b1-44b2-8660-1b4b344091f3/
SH256 hash:
55805ff14318470d2bb03ef3a08451174078972213f5f557d7d26d17fe9d597c
MD5 hash:
1900a6c2b1b8680488d9ba6ab5f133de
SHA1 hash:
876834389ae14fb52518124bc5065d996ac3e4c4
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/4bdeeca5-43b1-44b2-8660-1b4b344091f3/
Parent samples :
77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d
7570583507a88122beae60126d30e6ef9a0ecdf6d6e5cbfa5eadfbf2beea1f6f
d071c4ad717b4f4fbfc6842ef23c1885f3649b98a332b3544b17228ffdf97d9f
9ffac5cfce4255e57ad84ef7619e30cc8fd8ef9635524ef418aa9e038f130e95
92a734c338647c35c24e7b71c4fdd83739bc0f15ce120210c5a50ebd4f48a5ef
cc8714ca2a553cb67d5e387d8fdbe58ec36c173305022ae800d475cd0ad54115
SH256 hash:
687af98845e92be280643736a2ab193faeb4d21f401a91ee366d7fef32182d9d
MD5 hash:
4bedaf4a25181a95ae614a8fce0a67c6
SHA1 hash:
42ddd164e53433f686a485019b700d0f8e35926a
Link:
https://www.unpac.me/results/4bdeeca5-43b1-44b2-8660-1b4b344091f3/
SH256 hash:
77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d
MD5 hash:
0a5098857e7e92c8d76a659111dc8fcd
SHA1 hash:
024de800be731c0134b926c12df718ed7d80b14e
Link:
https://www.unpac.me/results/4bdeeca5-43b1-44b2-8660-1b4b344091f3/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/77e2467db5a0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d

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:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
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:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
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.

Malspam

AsyncRAT

Executable exe 77e2467db5a0e05a373577bd5a04c1f5ecd4282ded59a0d235f61fd915f2e58d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/391947/

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