MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4
SHA3-384 hash: 572754f3a33a39fea5a46390d6eac739e5d0e8f6710337e5cedd8a513a3372851a30eeaa38684981599f66dc81788f61
SHA1 hash: d913818de68d525e8f332e8eebbf95e9ae5c8a41
MD5 hash: 86db886b821e9b4d8e88584457ea7a0d
humanhash: carpet-pasta-nuts-hawaii
File name:e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4
Download: download sample
Signature Formbook
Create hunting rule
File size:772'096 bytes
First seen:2025-07-07 15:07:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:hpnbgcCQ5fR2jj1/0BRD4/V2/DXDU6Memwix4IZKt4k68U4AtyXS:hpnbgcCQje0BRH7zWemwoKtKPy
TLSH T19DF4120A39E784C2D1BA3F7989F3D1B889603FDA4872C2C66FD13C5F3D34A519606666
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
dhash icon 1a71c0aaaaaa0203 (10 x Formbook, 2 x RemcosRAT, 2 x SnakeKeylogger)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
21
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/13215/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686be31f900df8e7f8685232
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending a custom TCP request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4
Gathering data
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-06-26 04:29:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4eb3zx6qf6f5oemazepbkvrzsfsjql7vgpv37ypbwxalh2lgk6sa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250707-shjssswwfy/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5dfe2ddb-ccdd-41e7-9c62-7ae0d9fdee53
Unpacked files
SH256 hash:
e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4
MD5 hash:
86db886b821e9b4d8e88584457ea7a0d
SHA1 hash:
d913818de68d525e8f332e8eebbf95e9ae5c8a41
Link:
https://www.unpac.me/results/4247999b-b1ff-44e2-a8f1-5f4a48774a0a/
SH256 hash:
c94de0de5db810ab138d50f687c46c210ba2d279053b4edbf8f725d588de3d04
MD5 hash:
74a3a282ceaf09f71c1fd321119d2733
SHA1 hash:
430a184306e743fe4a9aacd0f0a308ba36cc0a55
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/4247999b-b1ff-44e2-a8f1-5f4a48774a0a/
SH256 hash:
16b286e265bf73d9306fdcf18b6af9aa68bcd5322cb250cb66b1b14a220c88d6
MD5 hash:
9d1364afa57b30b1f4eea413809f2d08
SHA1 hash:
66bc8a0b0e37e21dbb5fe5a2050e2522391067e1
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/4247999b-b1ff-44e2-a8f1-5f4a48774a0a/
Parent samples :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 hash:
e60f9316d57d29f10fd160059e3fcc35a66249576aaf2e7e97c726f3a920bfe7
MD5 hash:
dba8246cf2fee2d927c4b5564badd788
SHA1 hash:
d3ddeafc8a5d40f3974819a1cc65a67d2dc4c45c
Link:
https://www.unpac.me/results/4247999b-b1ff-44e2-a8f1-5f4a48774a0a/
SH256 hash:
b089d63574927e20a3e6d5983cb3a902620733e4d03c2bc3beebcceb42bc7970
MD5 hash:
0519493ccb52ef986bf7bc399325d04f
SHA1 hash:
a1e0ec05f79d7e30be35e98dc95b03c66c4c8349
Link:
https://www.unpac.me/results/4247999b-b1ff-44e2-a8f1-5f4a48774a0a/
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/e103bcdfd02f8bd71180c91e1556399164982ff533ebbfe1e1b5c0b3e96657a4

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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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
Cape
https://www.capesandbox.com/analysis/13215/

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

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