MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7. 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

Formbook

Vendor detections: 19

Intelligence 19 IOCs YARA 21 File information Comments

SHA256 hash:	7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7
SHA3-384 hash:	2b3bd402a1cbc6bca821572d46a9eaebb762f59f26e22308619491a1fdc4611f67d9e93a698e5bea59724eab249b81fe
SHA1 hash:	64b74ae6e4d9fd3cdbd5b05d20a8c2dd8e9aba9f
MD5 hash:	363951a001e9d0ce95ff0e73d4ed7252
humanhash:	sink-oxygen-stream-nebraska
File name:	SecuriteInfo.com.Trojan.PackedNET.3393.18051.15657
Download:	download sample
Signature	Formbook Create hunting rule
File size:	753'152 bytes
First seen:	2025-08-20 05:16:30 UTC
Last seen:	2025-09-05 13:02:46 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:sxOzmACKj9NCtJwkgJkTRf+hxi/RGrcFPlUcV0VacsCbp4MRo1WMnI+lmqhan2:1z3StJwXAfWGqcFgVaURYWMnI+0
TLSH	T14DF4124562A6EA15D6FA2BF85DB4E27843F93E897921C3060ED5BDE73C30B406D14B83
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	SecuriteInfoCom
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

formbook

ID:

File name:

SecuriteInfo.com.Trojan.PackedNET.3393.18051.15657

Verdict:

Malicious activity

Analysis date:

2025-08-20 05:19:48 UTC

Tags:

netreactor formbook xloader

Link:

https://app.any.run/tasks/c89ed2a9-82f9-4efd-a193-1670704167d2

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/22381/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.3393.18051.15657.UNOFFICIAL

Verdict:

Malicious

Score:

90.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68a55a488fd55a79c52954e4

Tags:

virus msil

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

explorer lolbin obfuscated obfuscated packed packed packer_detected vbnet

Link:

https://www.filescan.io/uploads/68a55a59a4bdac9f5b9fe6df/reports/51909efe-bfa2-4aff-9fed-79ff51c675e8/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f314f978-cbcd-4c44-a2c6-4b9358532e3e

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.37 Win 32 Exe x86

Link:

https://app.malva.re/file/363951a001e9d0ce95ff0e73d4ed7252

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7/

Verdict:

Malicious

Threat:

Family.FORMBOOK

Link:

https://tip.neiki.dev/file/7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2025-08-20 01:54:24 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=pu6hpc67s2qjgkp7jazag5odwp4qf6ymmctnzq7ijr2mfguslllq._file

Verdict:

malicious

Label(s):

unc_loader_037

Similar samples:

error

Formbook

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/250820-fyrr5azvhw/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Formbook payload

Formbook

Formbook family

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/6491c0fb-2ef3-4f19-9593-8d489f12623f

Unpacked files

SH256 hash:

7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7

MD5 hash:

363951a001e9d0ce95ff0e73d4ed7252

SHA1 hash:

64b74ae6e4d9fd3cdbd5b05d20a8c2dd8e9aba9f

Link:

https://www.unpac.me/results/38e61513-39ba-4474-ad71-bbdfd8fe2489/

SH256 hash:

7b90dfa5a1e1cb97014bb839dfe66577109a9bfdebf37a1d943747fd6297ec54

MD5 hash:

175a8b2e9d8e3bf7a1920fc6b93371f4

SHA1 hash:

054b4bc3e37be1e79020b0a49fcbb308a5ce2916

Detections:

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/38e61513-39ba-4474-ad71-bbdfd8fe2489/

Parent samples :
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SH256 hash:

005009985272f11372d2d40c8cb4b62a48b15d1dd3a8918d5cb5e0cedd088b61

MD5 hash:

a7f17a9858eef8ddac7ba8a435ce8360

SHA1 hash:

41d0e87104949daceb0823952f143a4ce04c3ddb

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/38e61513-39ba-4474-ad71-bbdfd8fe2489/

SH256 hash:

929f07dc02c773e4bd51ce7405e2bc3d8460b0b2c3315875d7dc00a3c4814745

MD5 hash:

9a5507d165f8688348dad24bf793a9f9

SHA1 hash:

6cf4b8abe496742a573302805565bad9df84d1e8

Link:

https://www.unpac.me/results/38e61513-39ba-4474-ad71-bbdfd8fe2489/

SH256 hash:

dd01957fe2016f5fc67db0625bc57e43f4d1eca9ba5b882f716cefd2af909b27

MD5 hash:

ab86226bf69bdd4360b16fd73b1da3be

SHA1 hash:

776dc1c27f9fe51e1a297af1291f8f8639e345ce

Link:

https://www.unpac.me/results/38e61513-39ba-4474-ad71-bbdfd8fe2489/

Malware family:

zgRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/7d3c778bdf96/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/7d3c778bdf96a09329ff48320375c3b3f902fb0c60a6dcc3e84c74c29a925ad7

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_AllMal_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication

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

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

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

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

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

Rule name:	Formbook Create hunting rule
Author:	kevoreilly
Description:	Formbook Payload

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

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

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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

Rule name:	pe_imphash Create hunting rule

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

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:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

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.

Cape

https://www.capesandbox.com/analysis/22381/

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

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