MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b27e4c8287ff688b8da4045756c22d08ccc0d100970cda2cf4bff09880df496c. 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: 19


Intelligence 19 IOCs 1 YARA 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b27e4c8287ff688b8da4045756c22d08ccc0d100970cda2cf4bff09880df496c
SHA3-384 hash: fe930ba4b9fe73aa7e2620ece85766057ace28deb5021a82a4466e57216f47a37091927800af532a589a8077c00db1fd
SHA1 hash: 1fcb2293499713ff9948134ceb30be4f12d101fc
MD5 hash: 1cfd4361277b82972da1c2bacadc270a
humanhash: network-snake-pizza-happy
File name:1cfd4361277b82972da1c2bacadc270a.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:49'664 bytes
First seen:2024-10-19 19:45:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'795 x AgentTesla, 19'695 x Formbook, 12'276 x SnakeKeylogger)
ssdeep 1536:Auq9JTPNY72AUZ1oRjJBabg7UdROYgduxMZh6dAv:AuqnTPNo2A41oRjJBabg7UdQYS9T6Gv
TLSH T1DC234C043BED812BF2BE4F7499F26145867AB6633603D60E1CC441975F13FC69982AFA
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
198.154.99.162:6615

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
198.154.99.162:6615 https://threatfox.abuse.ch/ioc/1338180/

Intelligence

File Origin
# of uploads :
1
# of downloads :
495
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
1cfd4361277b82972da1c2bacadc270a.exe
Verdict:
Malicious activity
Analysis date:
2024-10-19 19:47:56 UTC
Tags:
rat asyncrat remote stealer
Link:
https://app.any.run/tasks/3d66bba7-d815-49ba-be89-234bcd8872da

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Razy-9625918-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67140c7ce706a56b5a031cb1
Tags:
Powershell Autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Creating a window
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat asyncrat defender fareit lolbin njrat razy reg samas schtasks vbnet
Link:
https://www.filescan.io/uploads/67140c7bcb929da7ec4dbbf3/reports/3b2c1fb1-adc8-4dc8-953e-2306e59e76cb/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b27e4c8287ff688b8da4045756c22d08ccc0d100970cda2cf4bff09880df496c
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:
Malicious
Link:
https://analyze.intezer.com/analyses/fbb91095-cc09-4be5-86ce-117a02458a64
Result
Threat name:
AsyncRAT, PureLog Stealer, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1537859
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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 dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
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)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1537859 Sample: OhopdYYTTm.exe Startdate: 19/10/2024 Architecture: WINDOWS Score: 100 35 Suricata IDS alerts for network traffic 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 14 other signatures 2->41 7 RealtekAudio.exe 1 2 2->7         started        11 OhopdYYTTm.exe 7 2->11         started        process3 dnsIp4 33 198.154.99.162, 49730, 49732, 6630 ZC38-AS1US United States 7->33 43 Antivirus detection for dropped file 7->43 45 Multi AV Scanner detection for dropped file 7->45 47 Protects its processes via BreakOnTermination flag 7->47 51 2 other signatures 7->51 29 C:\Users\user\AppData\...\RealtekAudio.exe, PE32 11->29 dropped 31 C:\Users\user\AppData\...\OhopdYYTTm.exe.log, ASCII 11->31 dropped 49 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->49 14 cmd.exe 1 11->14         started        17 cmd.exe 1 11->17         started        file5 signatures6 process7 signatures8 53 Uses schtasks.exe or at.exe to add and modify task schedules 14->53 19 conhost.exe 14->19         started        21 schtasks.exe 1 14->21         started        23 RealtekAudio.exe 3 17->23         started        25 conhost.exe 17->25         started        27 timeout.exe 1 17->27         started        process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b27e4c8287ff688b8da4045756c22d08ccc0d100970cda2cf4bff09880df496c
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b27e4c8287ff688b8da4045756c22d08ccc0d100970cda2cf4bff09880df496c/
Threat name:
Win32.Trojan.DControl
Create hunting rule
Status:
Malicious
First seen:
2024-10-17 22:44:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wj7ezauh75uixdnearlvnqrnbdgmbuias4gnulhux7yjrag7jfwa._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
error
AsyncRAT
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:albion discovery rat spyware stealer
Link:
https://tria.ge/reports/241019-ygyhfsvdma/
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
198.154.99.162:6606
198.154.99.162:6607
198.154.99.162:6608
198.154.99.162:6609
198.154.99.162:6610
198.154.99.162:6611
198.154.99.162:6612
198.154.99.162:6613
198.154.99.162:6614
198.154.99.162:6615
198.154.99.162:6616
198.154.99.162:6617
198.154.99.162:6618
198.154.99.162:6619
198.154.99.162:6620
198.154.99.162:6621
198.154.99.162:6622
198.154.99.162:6623
198.154.99.162:6624
198.154.99.162:6625
198.154.99.162:6626
198.154.99.162:6627
198.154.99.162:6628
198.154.99.162:6629
198.154.99.162:6630
198.154.99.162:6631
198.154.99.162:6632
198.154.99.162:6633
198.154.99.162:6634
198.154.99.162:6635
198.154.99.162:6636
198.154.99.162:6637
198.154.99.162:6638
198.154.99.162:6639
198.154.99.162:6640
Verdict:
Malicious
Tags:
red_team_tool rat asyncrat
YARA:
INDICATOR_TOOL_PET_Defendercontrol malware_asyncrat asyncrat AsyncRat_Payload win_asyncrat_bytecodes JPCERTCC_Asyncrat
Link:
https://app.threat.zone/submission/bf89f76c-a8b4-47ed-ac55-af7b7b694a3e
Unpacked files
SH256 hash:
b27e4c8287ff688b8da4045756c22d08ccc0d100970cda2cf4bff09880df496c
MD5 hash:
1cfd4361277b82972da1c2bacadc270a
SHA1 hash:
1fcb2293499713ff9948134ceb30be4f12d101fc
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/12754802-ef50-4065-8dbf-2b5cd468b391/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b27e4c8287ff/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/b27e4c8287ff688b8da4045756c22d08ccc0d100970cda2cf4bff09880df496c

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:asyncrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
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:INDICATOR_TOOL_PET_DefenderControl
Create hunting rule
Author:ditekSHen
Description:Detects Defender Control
Rule name:malware_asyncrat
Create hunting rule
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
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: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_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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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