MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99. 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

DarkCloud

Vendor detections: 13

Intelligence 13 IOCs YARA 17 File information Comments

SHA256 hash:	cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99
SHA3-384 hash:	50799c105d89dd6ba8e235372312446eca906375aeff7a361edbbbb2c031bacd0d0ab9f18ba00954b820ca0e7e870262
SHA1 hash:	6ec800312b4f5f3f92fb4c02b64d45fc2d26e739
MD5 hash:	9928943eb6b212155b49c282d6d54919
humanhash:	virginia-violet-april-william
File name:	cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99
Download:	download sample
Signature	DarkCloud Create hunting rule
File size:	2'982'912 bytes
First seen:	2026-11-09 08:20:37 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	4300132b34cd77651d7a7e8c3959a2e2 (1 x DarkCloud)
ssdeep	49152:YMp62xBDbBBEzePXVM5Gfl+GqGppKNA6o7wZdZ5ZMGLk/Xg4Sa3FkN3ib:d1xBBBLXVDUOpQRZLeXk
TLSH	T1A6D5BE12B78695B1D0B307714AADF770C36DBA0517756BA736E8EB0E1C601E18F6B382
TrID	38.2% (.EXE) Win64 Executable (generic) (6522/11/2) 26.4% (.EXE) Win32 Executable (generic) (4504/4/1) 11.8% (.EXE) OS/2 Executable (generic) (2029/13) 11.7% (.EXE) Generic Win/DOS Executable (2002/3) 11.7% (.EXE) DOS Executable (generic) (2000/1)
Magika	pebin
dhash icon	f4ecc4d0f0e8c8c4 (5 x Formbook, 2 x AgentTesla, 1 x DarkCloud)
Reporter	adrian__luca
Tags:	DarkCloud exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/98392/

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file in the drivers directory

Creating a service

Launching a service

Loading a system driver

Creating a file in the %temp% directory

Creating a process from a recently created file

Creating synchronization primitives

Creating a window

Creating a file in the %AppData% subdirectories

Reading critical registry keys

Sending a custom TCP request

Enabling autorun for a service

Stealing user critical data

Gathering data

Verdict:

Malicious

Labled as:

FormBook.Generic

Link:

https://www.hybrid-analysis.com/sample/cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-10-15T18:45:00Z UTC

Last seen:

2026-11-02T16:07:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99/results?tab=lookup

Gathering data

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

Executable PE (Portable Executable) PE File Layout Win 32 Exe x86

Link:

https://app.malva.re/file/9928943eb6b212155b49c282d6d54919

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99/

Threat name:

Win32.Backdoor.FormBook

Status:

Malicious

First seen:

2026-10-18 05:17:26 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

24 of 36 (66.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z5ua4h774kenhqfagchchxzl4yhq3kp2wvgtvfgnpczl4bqo3wmq._file

Verdict:

malicious

Label(s):

DarkCloudStealer

Link:

https://reports.threatray.com/21c3a680-a886-4936-9e67-17a3125771e5

Result

Malware family:

n/a

Score:

3/10

Tags:

discovery

Link:

https://tria.ge/reports/261109-j8592sv16j/

Behaviour

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Malware Family:

n/a

Verdict:

Suspicious

Tags:

n/a

YARA:

DebuggerCheck__MemoryWorkingSet win_token

Link:

https://app.threat.zone/submission/02da4b08-5f7e-45b5-b375-c116ec5aa1e2

Malware Family:

formbook

Malicious:

True

Tags:

peexe polymorphic obfuscated

Link:

https://intel.virussign.com/intelligence/file/cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99

Unpacked files

SH256 hash:

cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99

MD5 hash:

9928943eb6b212155b49c282d6d54919

SHA1 hash:

6ec800312b4f5f3f92fb4c02b64d45fc2d26e739

Link:

https://www.unpac.me/results/ad0a149b-f09f-4cc2-a589-b830cf364c8c/

SH256 hash:

5d26b2d323f17236eb8b49759a211202bcedfcfa86d665885996f284e394ae65

MD5 hash:

89af1532a1b3cc2af2cf2226243efeb2

SHA1 hash:

fa8a264874befe6cf61235f69834b2413636ad66

Detections:

triage_darkcloud_infostealer

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_CC_Regex

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

MALWARE_Win_A310Logger

MALWARE_Win_DarkCloud

Link:

https://www.unpac.me/results/ad0a149b-f09f-4cc2-a589-b830cf364c8c/

Malware family:

DarkCloud

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/cf680e1fffe2/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/cf680e1fffe288d3c0a0308e23df2be60f0da9fab54d3a94cd78b2be060edd99

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:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__MemoryWorkingSet Create hunting rule
Author:	Fernando Mercês
Description:	Anti-debug process memory working set size check
Reference:	http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/

Rule name:	exploit_any_poppopret Create hunting rule
Author:	Jeff White [karttoon@gmail.com] @noottrak
Description:	Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	Jupyter_infostealer Create hunting rule
Author:	CD_R0M_
Description:	Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SEH__vectored 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:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	WIN_Malware_Unknown_ForgeAuto_4fa7e284_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat extrait)

Rule name:	WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects XWorm (pe, etat extrait)

Rule name:	WIN_Sample_Unique_69354b41 Create hunting rule
Author:	Marjoriefort
Description:	Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:	69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape

https://www.capesandbox.com/analysis/98392/

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