MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc
SHA3-384 hash: 0b7f7568f97a7dd03d540251d82f30cffc4740ffa9560d65f7a85da3626b1de5107780237ef2c0680b0b548d7eb093a8
SHA1 hash: dae9c7534f2290a8930fa8634aa90654acb92343
MD5 hash: a5219c12fc6949da7d5a082f1d4878cf
humanhash: angel-island-echo-fish
File name:a5219c12fc6949da7d5a082f1d4878cf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:1'451'520 bytes
First seen:2025-01-23 16:11:11 UTC
Last seen:2025-05-21 22:20:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:+O23ulMP5LevgFoc6r284wGQTvnG3/BEjgOE1w+GL9DuNBlpUxC:Thl66/9PTvnG3/BEj7Xkd8C
Threatray 2'677 similar samples on MalwareBazaar
TLSH T14265F11FBB8785F1D26467F6C9D70D140774E682B683DB1E798A23EA0C037AA8C41677
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

Intelligence

File Origin
# of uploads :
2
# of downloads :
550
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
a5219c12fc6949da7d5a082f1d4878cf.exe
Verdict:
Malicious activity
Analysis date:
2025-01-23 16:22:56 UTC
Tags:
purehvnc stealer rat asyncrat remote
Link:
https://app.any.run/tasks/58b76dbe-4ad4-48ff-9b22-166525032b08

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67926cdae708b6e7a3b076fa
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Launching a process
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net_reactor obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67926a5970cf772b4cf5c66c/reports/52a5cff2-3c2e-4606-924a-421242b6d1b5/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc
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/eac420eb-0afb-4170-8324-44af26fb5a99
Result
Threat name:
PureCrypter, AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1597781
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Detected PureCrypter Trojan
Drops VBS files to the startup folder
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
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 Bitcoin Wallet information
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1597781 Sample: FBhxr49KdH.exe Startdate: 23/01/2025 Architecture: WINDOWS Score: 100 29 Suricata IDS alerts for network traffic 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 Yara detected AsyncRAT 2->33 35 8 other signatures 2->35 7 FBhxr49KdH.exe 5 2->7         started        11 wscript.exe 1 2->11         started        process3 file4 21 C:\Users\user\AppData\...\IsSynchronized.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\...\IsSynchronized.vbs, ASCII 7->23 dropped 25 C:\...\IsSynchronized.exe:Zone.Identifier, ASCII 7->25 dropped 37 Found many strings related to Crypto-Wallets (likely being stolen) 7->37 39 Drops VBS files to the startup folder 7->39 41 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->41 13 InstallUtil.exe 2 7->13         started        43 Windows Scripting host queries suspicious COM object (likely to drop second stage) 11->43 17 IsSynchronized.exe 2 11->17         started        signatures5 process6 dnsIp7 27 162.251.123.206, 49731, 56001 UNREAL-SERVERSUS Canada 13->27 45 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 13->45 47 Found many strings related to Crypto-Wallets (likely being stolen) 13->47 49 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 13->49 55 4 other signatures 13->55 51 Multi AV Scanner detection for dropped file 17->51 53 Machine Learning detection for dropped file 17->53 19 InstallUtil.exe 3 17->19         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc/
Threat name:
ByteCode-MSIL.Trojan.BotX
Create hunting rule
Status:
Malicious
First seen:
2025-01-08 19:19:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qutm732iwtk27uo3t7qblmmcgqholnsn72vyd7ir55cdsi7p2xoa._file
Verdict:
malicious
Label(s):
sorano
Create hunting rule
Similar samples:
500e0511666a6aced9ceb6e727bbe21cfaacefbf6529704848286238056f9875
AsyncRAT
578cabfe9302c26e7dc8be3fa6de971205bc0886957da1c8b29619d9c1026610
AsyncRAT
8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc
AsyncRAT
a4eb8041e9e7013243bed5391a31c3bdd813bcc64f928a8778b80e7ca31778f9
AsyncRAT
error
AsyncRAT
+ 2'667 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery
Link:
https://tria.ge/reports/250123-tng2tswphp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2cd90a47-3554-4603-9320-942bac204b28
Unpacked files
SH256 hash:
982233e524e1110514b50bf7360f2a1e34e05a679c1b2476bb4fbc6b32dd8758
MD5 hash:
3fd7527243025a1b9b44c724ced1a48f
SHA1 hash:
f3f7bc6f85972b5f840cebfeacf459b8eba5d3f2
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/1b037908-e114-49d3-85dd-314366dc1235/
SH256 hash:
8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc
MD5 hash:
a5219c12fc6949da7d5a082f1d4878cf
SHA1 hash:
dae9c7534f2290a8930fa8634aa90654acb92343
Link:
https://www.unpac.me/results/1b037908-e114-49d3-85dd-314366dc1235/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8526cfef48b4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8526cfef48b4d5afd1db9fe015b182340ee5b64dfeab81fd11ef443923efd5dc

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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)

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 (GUARD_CF)high

Comments