MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e
SHA3-384 hash: c90591c9ab4b6e34d27d77f3b8afcf8d6b0b669c86d5f05033d69142040ec2a469b97495968eb80eb4bc0d6fbd474315
SHA1 hash: e9f66e5c3dc28b0ae844be5bb2d967a17b16c57e
MD5 hash: 85cd120b5698e12fda1e27b8ca8d4f99
humanhash: texas-illinois-sodium-hawaii
File name:CI-PL- HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:676'864 bytes
First seen:2024-11-28 16:40:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:t2sv+SGjpA3yKUUo6aGCvzCnYb+iXM6saac3gFdt8pN8FRXd5FxYCOb8keqWrmJ+:t2xj7LCnYnM3+WWsHyb8kezriVkB9
Threatray 2'552 similar samples on MalwareBazaar
TLSH T1B5E40260569FE906C8D617B409B3E7F45674CCC8E911C70B6BE57EEFBD2B21628803A0
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
File icon (PE):PE icon
dhash icon 0048496961686800 (5 x Formbook, 2 x RemcosRAT, 1 x Loki)
Reporter threatcat_ch
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
400
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CI-PL- HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr
Verdict:
Malicious activity
Analysis date:
2024-11-28 16:41:12 UTC
Tags:
netreactor remote xworm
Link:
https://app.any.run/tasks/83c8e570-e3fe-4f1d-b683-1ca2ad5c1a09

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3133.18735.5821.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67489df204c232bff3b45f1b
Tags:
autorun gumen
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a process with a hidden window
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67489d2ffa3557b45ebe3da3/reports/d0663355-a7a7-423b-b5bb-162ca2797096/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0b05d502-49fa-412e-9eae-c788568c0209
Result
Threat name:
PureLog Stealer, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1564682
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Loading BitLocker PowerShell Module
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1564682 Sample: CI-PL- HBL# WSPAE1311198 VS... Startdate: 28/11/2024 Architecture: WINDOWS Score: 100 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 19 other signatures 2->47 8 CI-PL- HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe 3 2->8         started        process3 file4 33 CI-PL- HBL# WSPAE1... V-067E.scr.exe.log, ASCII 8->33 dropped 11 CI-PL- HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe 6 8->11         started        process5 dnsIp6 37 104.250.180.178, 49748, 7061 M247GB United States 11->37 35 C:\Users\user\AppData\Roaming\XClient.exe, PE32 11->35 dropped 49 Adds a directory exclusion to Windows Defender 11->49 16 powershell.exe 23 11->16         started        19 powershell.exe 23 11->19         started        21 powershell.exe 23 11->21         started        23 powershell.exe 11->23         started        file7 signatures8 process9 signatures10 39 Loading BitLocker PowerShell Module 16->39 25 conhost.exe 16->25         started        27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        31 conhost.exe 23->31         started        process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-11-28 03:44:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=54sx4rnlf3zvuyo3eqesr2rac473qgstj66fbihm2nth65wj3qpa._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
1ea45894bbfc448142256e5eec21349889852f550b4ed53f0aca814a6c642335
AsyncRAT
6dd41bfc65feff17a243f97340729b3472f519c1029127c5e9fee03bafcde338
AsyncRAT
bad53d6e667f724563d9b42141bbcf279299b67c03db091c325e8e5597474f76
AsyncRAT
c39365657b596c0e0d5599d177ec383659d23d24d1e529fcf2eeef2c8f82e5f0
AsyncRAT
e58ff0b93e922520fa6f1c67196e5fbc7fa1c2c95db7ba4b77a2345de88151a8
AsyncRAT
ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e
AsyncRAT
error
AsyncRAT
+ 2'542 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution rat trojan
Link:
https://tria.ge/reports/241128-t63q9atjes/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Drops startup file
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
104.250.180.178:7061
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/20c077a3-23cc-4794-b6b8-0be53c1dcb5c
Unpacked files
SH256 hash:
94c1b83e9181e597748af34aa30324fa001324bd12d33b12aa01e2a05ba779d6
MD5 hash:
090b76b0c6152ea71f08d1e9ae8f3742
SHA1 hash:
ff5ca08e6d69cb68a76422e804b0574d551ed20e
Detections:
XWorm
Create hunting rule
win_xworm_w0
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
win_xworm_bytestring
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/5b811979-d097-4dcb-936d-229ef075bac0/
Parent samples :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 hash:
9c91c1b83ce1071862e4396befaf2367de02367fbacfbf378d4d965d775701aa
MD5 hash:
103b3e05b552f633fbcd713efe892c92
SHA1 hash:
e70bd5a85609a9d9584cb6b101c1fb7baa314649
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/5b811979-d097-4dcb-936d-229ef075bac0/
SH256 hash:
fe7739c7141e1d374a8a3d10b158c2417a7dc3f474143a59fefee940abc8b3cf
MD5 hash:
f17878a503719c5f551b43ce85a83bea
SHA1 hash:
d32a2695564662ad43686cb1e4878e3ec2dc3568
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/5b811979-d097-4dcb-936d-229ef075bac0/
Parent samples :
83b760b0b764a209333a2b903015ff3f6df831faf20be20b836563c54e3370b1
43e710d54cc34ae668a10b0ce9e89fd4f7d147cef34c7d44275ec96be9cfb901
bfd4e29505627b76243c4ea34c07b22af7edc00391b112e78c2dc3cf7a48d742
2ef8e6a7e290f566d0e90f72b8567fe92952dcf6a0f29c673c64794b7d799c41
ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e
a8eca83cef071c5b20e34a9bcafb0249e47bbd5bf6f88b757709ae30dc728a37
efd64c0b88bbe45461d13b2a0acd9544218f819f4579af35b5fc92e20d5f6fa5
2f8b625544a974b1d801bc2de338dca23abb89fd6d49b5b9bb8ad2dbbb7e41ba
baa7b027ef4fed86e02b6ffa8d6143dd09db213a53bceee7cf02d5cec64f760f
eb2ecf9b7aaa6a3d36d66aac6cc107c09c0518a06272f27ae17f2430c1d7a70f
04e6dda7961928fadeecd13e02b9195d31a5e3a9925d4de51072089bc7a1b452
3c65b308401dd9d3a47703d1865a800a01478634e167e4a146041cf0810b5e7c
SH256 hash:
ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e
MD5 hash:
85cd120b5698e12fda1e27b8ca8d4f99
SHA1 hash:
e9f66e5c3dc28b0ae844be5bb2d967a17b16c57e
Link:
https://www.unpac.me/results/5b811979-d097-4dcb-936d-229ef075bac0/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef257e45ab2e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NETexecutableMicrosoft
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.

Malspam

AsyncRAT

Executable exe ef257e45ab2ef35a61db240928ea20173fb81a534fbc50a0ecd3667f76c9dc1e

(this sample)

  
Delivery method
Distributed via e-mail attachment

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

Comments