MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03c8d5b7d488f876b336921a594d7253c98d9599178d316be09f76f23db1b07e. 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


CryptOne


Vendor detections: 13


Intelligence 13 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03c8d5b7d488f876b336921a594d7253c98d9599178d316be09f76f23db1b07e
SHA3-384 hash: db19dee80aa142748229c2df47b72063adc23803921201fc62d3633d71a06e4dee879c877fd7b976b6eb2fb1fb2ccdb0
SHA1 hash: 274e2ec54caefa9c98f7108bab57f8d5b2dbdf46
MD5 hash: 9b25d16c5f5965c823ae414b93914418
humanhash: lithium-east-mexico-river
File name:Xereca Xiters External.exe
Download: download sample
Signature CryptOne
Create hunting rule
File size:1'429'608 bytes
First seen:2025-05-20 16:55:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8c16c795b57934183422be5f6df7d891 (36 x Mofksys, 18 x CryptOne, 6 x AveMariaRAT)
ssdeep 24576:PFOalo2ncwYpIpe/Qt6fC+57iJ/ht4hnjxSFbs0o:tp5nJl0doFbqnjj0o
TLSH T15065AF1BF3E6049DE2778078D463A317E5B5B82517318BCB23908926BFA36D1EEB5311
TrID 42.6% (.EXE) Win32 Executable (generic) (4504/4/1)
19.4% (.ICL) Windows Icons Library (generic) (2059/9)
18.9% (.EXE) Generic Win/DOS Executable (2002/3)
18.9% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon 00928e8e8686b800 (21 x Mofksys, 9 x CryptOne, 5 x Amadey)
Reporter burger
Tags:CryptOne exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
479
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
XerecaXitersExternal.exe
Verdict:
Malicious activity
Analysis date:
2025-05-20 16:58:05 UTC
Tags:
jeefo auto-reg
Link:
https://app.any.run/tasks/df160a51-321d-4041-a29b-67e76cd8dd51

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Barys-10024056-0
Create hunting rule

Win.Trojan.VBGeneric-6735875-0
Create hunting rule

Win.Malware.Razy-6750247-0
Create hunting rule

Win.Trojan.Agent-1109049
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682cb4022f280a98fb42439e
Tags:
emotet swisyn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the Windows subdirectories
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Setting a single autorun event
Enabling a "Do not show hidden files" option
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm base64 certutil fingerprint keylogger lolbin netsh overlay overlay packed packer_detected remote visual_basic
Link:
https://www.filescan.io/uploads/682cb421c609634bd7cbe8fa/reports/db700461-0967-4bd4-96f9-80f26b2cddf1/overview
Verdict:
Malicious
Labled as:
Gosys.B
Link:
https://www.hybrid-analysis.com/sample/03c8d5b7d488f876b336921a594d7253c98d9599178d316be09f76f23db1b07e
Malware family:
MOFKSYS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/57d39115-8097-4f8f-a485-365821d2be71
Result
Threat name:
CryptOne, Mofksys
Create hunting rule
Detection:
malicious
Classification:
spre.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1695248
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contain functionality to detect virtual machines
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject threads in other processes
Detected CryptOne packer
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected Mofksys
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1695248 Sample: Xereca Xiters External.exe Startdate: 20/05/2025 Architecture: WINDOWS Score: 100 61 pki-goog.l.google.com 2->61 63 googlecode.l.googleusercontent.com 2->63 65 4 other IPs or domains 2->65 67 Antivirus / Scanner detection for submitted sample 2->67 69 Multi AV Scanner detection for dropped file 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 9 other signatures 2->73 11 Xereca Xiters External.exe 1 3 2->11         started        15 svchost.exe 2->15 injected 17 explorer.exe 2->17         started        19 svchost.exe 2->19         started        signatures3 process4 file5 53 C:\Windows\Resources\Themes\icsys.icn.exe, MS-DOS 11->53 dropped 55 C:\Users\user\...\xereca xiters external.exe, PE32+ 11->55 dropped 99 Drops executables to the windows directory (C:\Windows) and starts them 11->99 21 icsys.icn.exe 3 11->21         started        25 xereca xiters external.exe 11->25         started        101 Injects code into the Windows Explorer (explorer.exe) 15->101 27 consent.exe 2 15->27         started        29 explorer.exe 1 15->29         started        31 svchost.exe 1 15->31         started        signatures6 process7 file8 49 C:\Windows\Resources\Themes\explorer.exe, MS-DOS 21->49 dropped 81 Antivirus detection for dropped file 21->81 83 Drops PE files with benign system names 21->83 33 explorer.exe 2 15 21->33         started        85 Writes to foreign memory regions 27->85 signatures9 process10 dnsIp11 57 142.250.141.82, 49693, 49697, 49702 GOOGLEUS United States 33->57 59 googlecode.l.googleusercontent.com 74.125.137.82, 49692, 49694, 49696 GOOGLEUS United States 33->59 47 C:\Windows\Resources\spoolsv.exe, MS-DOS 33->47 dropped 75 Antivirus detection for dropped file 33->75 77 System process connects to network (likely due to code injection or exploit) 33->77 79 Drops PE files with benign system names 33->79 38 spoolsv.exe 3 33->38         started        file12 signatures13 process14 file15 51 C:\Windows\Resources\svchost.exe, MS-DOS 38->51 dropped 87 Antivirus detection for dropped file 38->87 89 Multi AV Scanner detection for dropped file 38->89 91 Drops PE files with benign system names 38->91 42 svchost.exe 2 38->42         started        signatures16 process17 signatures18 93 Antivirus detection for dropped file 42->93 95 Detected CryptOne packer 42->95 97 Drops executables to the windows directory (C:\Windows) and starts them 42->97 45 spoolsv.exe 1 42->45         started        process19
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/03c8d5b7d488f876b336921a594d7253c98d9599178d316be09f76f23db1b07e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/03c8d5b7d488f876b336921a594d7253c98d9599178d316be09f76f23db1b07e/
Threat name:
Win32.Trojan.Swisyn
Create hunting rule
Status:
Malicious
First seen:
2025-05-20 16:56:18 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=apenln6urd4hnmzwsinfstlskpey3fmzc6gtc27at53pepnrwb7a._file
Verdict:
malicious
Label(s):
mofksys
Create hunting rule
Similar samples:
error
CryptOne
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery persistence
Link:
https://tria.ge/reports/250520-vfcykshl2v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Adds Run key to start application
Executes dropped EXE
Modifies visiblity of hidden/system files in Explorer
Unpacked files
SH256 hash:
03c8d5b7d488f876b336921a594d7253c98d9599178d316be09f76f23db1b07e
MD5 hash:
9b25d16c5f5965c823ae414b93914418
SHA1 hash:
274e2ec54caefa9c98f7108bab57f8d5b2dbdf46
Link:
https://www.unpac.me/results/360a8771-02c1-4bbc-a895-b3bba6615183/
SH256 hash:
4d3d5f1cd8f16c638ac8ac329f589270ccd8b6846c9040a83b79acfa7b757d2f
MD5 hash:
4a2c372769d406e96bb8c5a1f2505647
SHA1 hash:
94325ac91c18514bd8ad0664b7e1be02331a65fc
Link:
https://www.unpac.me/results/360a8771-02c1-4bbc-a895-b3bba6615183/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/03c8d5b7d488/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/03c8d5b7d488f876b336921a594d7253c98d9599178d316be09f76f23db1b07e

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:SEH__vba
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_Imphash_Mar23_2
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Zero hits with with search for 'imphash:x p:0' on Virustotal)
Reference:Internal Research
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_7526f106
Create hunting rule
Author:Elastic Security
Rule name:Windows_Generic_Threat_cbe3313a
Create hunting rule
Author:Elastic Security

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
VB_APILegacy Visual Basic API usedMSVBVM60.DLL::__vbaCopyBytes
MSVBVM60.DLL::__vbaSetSystemError
MSVBVM60.DLL::__vbaExitProc
MSVBVM60.DLL::__vbaObjSetAddref
MSVBVM60.DLL::EVENT_SINK_AddRef
MSVBVM60.DLL::__vbaFileOpen

Comments