MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092. 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


Expiro


Vendor detections: 16


Intelligence 16 IOCs YARA 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092
SHA3-384 hash: b7f002ea38acebbddd145204783b7279de87ec2c363bc21c28a27344e400438b46b41b6c8ec29e050e5389999fc47dc1
SHA1 hash: f1a57406d91f8108c140043e1d611ed852080025
MD5 hash: 62c8b30fc8f235e53e59fb9d99e3de7a
humanhash: pennsylvania-five-arkansas-victor
File name:c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092
Download: download sample
Signature Expiro
Create hunting rule
File size:1'341'440 bytes
First seen:2025-11-06 10:11:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:bWfUBcSUe1iZQiycq5LciK63HKyFnY13x+wiF9VmG3HPLSQ6VFmn4mWF:KcBlvMZbycqZciL3HpuxtioavImn4mW
TLSH T1AE5523DDBD0ADD51F1984F32C822612D93FAC2E2B6A7E4C336ED4D744F60B04958E81A
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 adrian__luca
Tags:exe Expiro

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
83cd4b4adab9c663bd24a4138994e45d245e0bae1e2b9cd7f7f388bd69f03453.zip
Verdict:
Malicious activity
Analysis date:
2025-11-06 10:11:49 UTC
Tags:
arch-exec m0yv sinkhole darkcloud
Link:
https://app.any.run/tasks/d5ac0a70-a9ba-4016-8a32-b58a65fdc3bf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DarkCloud
Create hunting rule
Link:
https://www.capesandbox.com/analysis/35625/
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690c7464ea0f3e915c2378f8
Tags:
infosteal micro spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Loading a system driver
Connection attempt to an infection source
Creating a file in the system32 subdirectories
Modifying an executable file
Modifying a system file
Creating a file in the Windows subdirectories
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
Launching a process
Creating a file
Сreating synchronization primitives
Creating a file in the %AppData% directory
Modifying a system executable file
Launching a service
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Searching for synchronization primitives
Forced shutdown of a system process
Enabling autorun for a service
Query of malicious DNS domain
Stealing user critical data
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Infecting executable files
Sending an HTTP POST request to an infection source
Sending an HTTP GET request to an infection source
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-08T23:11:00Z UTC
Last seen:
2025-11-04T10:12:00Z UTC
Hits:
~1000
Detections:
Trojan-PSW.Win32.Stelega.sb HEUR:Trojan.MSIL.Kryplod.gen Trojan.MSIL.Taskun.sb Trojan.Kryplod.UDP.C&C Trojan.Agentb.UDP.ServerRequest PDM:Trojan.Win32.Generic Virus.Win32.Moiva.a Virus.Win64.Moiva.a Trojan-PSW.Win32.DarkCloud.sb Trojan-Dropper.Win32.Agent.sb HEUR:Trojan.Win64.Kryplod.pef Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Pycoon.sb HEUR:Virus.Win32.Generic Trojan.MSIL.Crypt.sb
Link:
https://opentip.kaspersky.com/c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092/results?tab=lookup
Malware family:
Expiro
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/06daba5e-597b-431f-be60-84da9a5ff2d1
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.35 Win 32 Exe x86
Link:
https://app.malva.re/file/62c8b30fc8f235e53e59fb9d99e3de7a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-10-09 02:07:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ygaxvs5il7mxck2vz3tytfala3rzcgsysnipqaq2gwvvbeb3acja._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
darkcloudstealer
Create hunting rule
Similar samples:
error
Expiro
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery execution ransomware spyware stealer
Link:
https://tria.ge/reports/251106-l8p9yazlb1/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Enumerates connected drives
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
DarkCloud
Darkcloud family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8798e602-098e-4b32-a6a3-71a60c114455
Unpacked files
SH256 hash:
c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092
MD5 hash:
62c8b30fc8f235e53e59fb9d99e3de7a
SHA1 hash:
f1a57406d91f8108c140043e1d611ed852080025
Link:
https://www.unpac.me/results/2110ac4d-3237-4f1c-9c31-008789f303ee/
SH256 hash:
2eb0d76827f622d2280eb186bc19b2f46e2ac88292bc8e142dca9aa2ccad205f
MD5 hash:
7bfa9a684117e7fcbdb2d6ff97b1a1d0
SHA1 hash:
6e8ca84992cb3a71bf4038c012d1916425c6ae26
Detections:
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MALWARE_Win_A310Logger
Create hunting rule
MALWARE_Win_DarkCloud
Create hunting rule
Link:
https://www.unpac.me/results/2110ac4d-3237-4f1c-9c31-008789f303ee/
Parent samples :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 hash:
caa561b6c3ac1ed05b22c6bd23d93ed7489d4773c1ba8c08346391f386fb6ce0
MD5 hash:
89922c8e0ffe50599d8878b83043c6b1
SHA1 hash:
7f2bcbc1ebbf3719c057bb3d3054f45347fd9dfd
Link:
https://www.unpac.me/results/2110ac4d-3237-4f1c-9c31-008789f303ee/
SH256 hash:
868f9844cd6f0ea25b1115f509044f21f71a787afe9b706eb44c11f4942cb563
MD5 hash:
55786c675054c44592975b5fa7f643fb
SHA1 hash:
851f36ec99a212528ee1d5070af0907aaa05c483
Link:
https://www.unpac.me/results/2110ac4d-3237-4f1c-9c31-008789f303ee/
SH256 hash:
0943fe8acab6e3bc79930a735c6dd295649848998e11bc5a394ca0aacfe31e7e
MD5 hash:
ce18e7f22b284554d074d3f2b1c03c3a
SHA1 hash:
b93e1f782df22d72ff759f0dd305b78d2718bfc4
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/2110ac4d-3237-4f1c-9c31-008789f303ee/
SH256 hash:
abdd6f31a909b0b10e30ced74a1f6f037adf1f61a8a842048dbc254d6f076169
MD5 hash:
c33a7f0e25bb3f4d3c19fc8441e9d12b
SHA1 hash:
0286b277e97b9f7c217a0d029e8144f8e20b40b9
Link:
https://www.unpac.me/results/2110ac4d-3237-4f1c-9c31-008789f303ee/
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/c1817acba85fd9712b55cee789940b06e3911a589350f8021a35ab50903b0092

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MALWARE_Win_A310Logger
Create hunting rule
Author:ditekSHen
Description:Detects A310Logger
Rule name:MALWARE_Win_DarkCloud
Create hunting rule
Author:ditekSHen
Description:Detects DarkCloud infostealer
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:ProtectSharewareV11eCompservCMS
Create hunting rule
Author:malware-lu
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Windows_Generic_Threat_ebf62328
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_DarkCloud_9905abce
Create hunting rule
Author:Elastic Security
Rule name:win_m0yv_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.m0yv.

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/35625/

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