MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143. 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: 18


Intelligence 18 IOCs 1 YARA 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143
SHA3-384 hash: 9fc924b4316293151c7116f75850e080e7482b1ff08c9addaf06da6a4be6f046dce6d9679629681af052b4814ebcb363
SHA1 hash: 9a7d97f44dd89fc97a051197c3c9bd36f7fbe975
MD5 hash: 8bd4a5fdcc3ff0fcba25e3a707223e36
humanhash: nevada-vegan-bacon-north
File name:UfIlMBitjQBrjm6.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:536'576 bytes
First seen:2025-06-12 08:20:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:nwnHVagSZjC5wvYQBC5laINqNxHSAzbqVENsdARhxNO:nHgTGAbjqNxJzbFR
Threatray 1'731 similar samples on MalwareBazaar
TLSH T157B4F1881256E507E1864BB469B2E3B512B9AECDE811D313CFEDFDEBBD3670538401A1
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
198.55.98.155:8809

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
198.55.98.155:8809 https://threatfox.abuse.ch/ioc/1544105/

Intelligence

File Origin
# of uploads :
1
# of downloads :
510
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
UfIlMBitjQBrjm6.exe
Verdict:
Malicious activity
Analysis date:
2025-06-12 08:47:22 UTC
Tags:
netreactor auto-reg rat asyncrat remote
Link:
https://app.any.run/tasks/53ee97ca-a67a-48d4-9614-884185581921

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/9088/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.6194.25942.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=684a8def8bd5d68a12e800c6
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Restart of the analyzed sample
Creating a file
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Searching for the window
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
nanocore obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/684a93a8171e01f9593e1d08/reports/12d129d1-870d-4ebd-bf2d-f519793f9f4b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2edbf73a-875a-4c42-bef6-206684ad8b6e
Result
Threat name:
AsyncRAT, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1712987
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Suricata IDS alerts for network traffic
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 AntiVM3
Yara detected AsyncRAT
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1712987 Sample: UfIlMBitjQBrjm6.exe Startdate: 12/06/2025 Architecture: WINDOWS Score: 100 46 michikoa.duckdns.org 2->46 50 Suricata IDS alerts for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 58 11 other signatures 2->58 10 UfIlMBitjQBrjm6.exe 3 2->10         started        14 Michiko.exe 2 2->14         started        signatures3 56 Uses dynamic DNS services 46->56 process4 file5 44 C:\Users\user\...\UfIlMBitjQBrjm6.exe.log, ASCII 10->44 dropped 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->62 64 Injects a PE file into a foreign processes 10->64 16 UfIlMBitjQBrjm6.exe 6 10->16         started        19 Michiko.exe 2 14->19         started        21 Michiko.exe 14->21         started        signatures6 process7 file8 42 C:\Users\user\AppData\Roaming\Michiko.exe, PE32 16->42 dropped 23 cmd.exe 1 16->23         started        25 cmd.exe 1 16->25         started        process9 signatures10 28 Michiko.exe 3 23->28         started        31 conhost.exe 23->31         started        33 timeout.exe 1 23->33         started        60 Uses schtasks.exe or at.exe to add and modify task schedules 25->60 35 conhost.exe 25->35         started        37 schtasks.exe 1 25->37         started        process11 signatures12 66 Injects a PE file into a foreign processes 28->66 39 Michiko.exe 2 28->39         started        process13 dnsIp14 48 michikoa.duckdns.org 198.55.98.155, 49705, 8809 ASN-QUADRANET-GLOBALUS United States 39->48
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u44utowvziboum25xxitpnawpxzjz5cdirh3y7q2jeomokf4yfbq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
asyncrat
Create hunting rule
Similar samples:
16fc60f543f67f8b5e50902fa78efd66ae2c3b16212dad6a07c0d467a28e27e8
AsyncRAT
4a8436b32c7ab7bf4942224b5728168e4686f082529831799f358ab54d87f328
AsyncRAT
7a560acc97e0be33258afce759c4c215a91103e7b7447e487d540eca65959f4e
AsyncRAT
97cabd864081313e9269c013f902117e60dbbcac4a7e7953eda96b306a9f2f73
AsyncRAT
a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143
AsyncRAT
error
AsyncRAT
+ 1'721 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:michiko discovery rat
Link:
https://tria.ge/reports/250612-j9rhaasps3/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
127.0.0.1:8809
michikoa.duckdns.org:8809
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2f969b5b-dd70-40de-b841-4688e91e6305
Unpacked files
SH256 hash:
a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143
MD5 hash:
8bd4a5fdcc3ff0fcba25e3a707223e36
SHA1 hash:
9a7d97f44dd89fc97a051197c3c9bd36f7fbe975
Link:
https://www.unpac.me/results/bd7b232c-3629-42f3-b5fb-96298ada7885/
SH256 hash:
1319d769f47bc08d5973d9340d93420450893e338518d75abab1eb149249febe
MD5 hash:
8270dfdb7465a23e3d9498616e6faad1
SHA1 hash:
9b3ba8c998f4827de7e1ccf77d6c8c886440bfe1
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bd7b232c-3629-42f3-b5fb-96298ada7885/
SH256 hash:
83f97b68f56d9418f87b767f37c94ea9a8c33928143da97038e55a74620a0d99
MD5 hash:
034ef9dc917237b19b273002ed754c78
SHA1 hash:
a4d69c404d554fc387662344d016241eeee9d8e2
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
asyncrat
Create hunting rule
win_asyncrat_bytecodes
Create hunting rule
win_asyncrat_unobfuscated
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Link:
https://www.unpac.me/results/bd7b232c-3629-42f3-b5fb-96298ada7885/
Parent samples :
a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143
8cee622d395025b98f2fb71c0a7acb79c00e1ef53750af01eb5be30e4ca18389
SH256 hash:
9e201551a2283cccc9255fc8c5c7cfe0607efd28055544452ee3d6071397275b
MD5 hash:
8511703c608e0c2eec41dd256bfbb653
SHA1 hash:
dc58ad6bb10f163e0231521a2a383f38c00bc3ab
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bd7b232c-3629-42f3-b5fb-96298ada7885/
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a73949bad5ca/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/a73949bad5ca02ea335dbdd137b4167df29cf443444fbc7e1a491cc728bcc143

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:asyncrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:async_RAT
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked AsyncRAT malware samples.
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:Mal_WIN_AsyncRat_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect AsyncRAT implant.
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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_bytecodes
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_unobfuscated
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
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/9088/

Comments