MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3. 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 22 File information Comments
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SHA256 hash: 396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3
SHA3-384 hash: 689ac0fc6c1d85e64e216cf4466203d142a050c7133f1d8df852279fdb0cd5689c7e4e8701ff39c5f1c5b78a072d68d1
SHA1 hash: a6ee95a9d4acae19d10e44ef7a48896e36ee3ef5
MD5 hash: 40cd9945dcd762e8d9374576449e1d9f
humanhash: sink-sink-steak-moon
File name:xv4UodPpMoH1Los.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:655'368 bytes
First seen:2025-05-11 10:47:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:D3k1OhUWRzWScesBqTq3q1ODpviUpWLeScStLFyNnhiCkR:jS8UWFcXwODq9OEx
Threatray 1'021 similar samples on MalwareBazaar
TLSH T173D402988F55CA13C8A61B7412B0F3311BB6AECEF521C7574FE96CEBB866B205D05342
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 cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
537
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
xv4UodPpMoH1Los.exe
Verdict:
Malicious activity
Analysis date:
2025-05-11 10:48:47 UTC
Tags:
formbook stealer amsi-bypass xloader
Link:
https://app.any.run/tasks/605fdc7b-6b5f-44fb-b0f1-b351a4a19d46

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3223.12625.8550.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682081a6e16384d6a7037efa
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert invalid-signature obfuscated packed packed packer_detected signed vbnet
Link:
https://www.filescan.io/uploads/682080770b64e174c42199f8/reports/82b127bb-ac51-43d5-b0a9-d1090f38300a/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/86d1fc75-df31-4563-a8ff-76b5616e6342
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1687138
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1687138 Sample: xv4UodPpMoH1Los.exe Startdate: 11/05/2025 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus / Scanner detection for submitted sample 2->59 61 8 other signatures 2->61 7 xv4UodPpMoH1Los.exe 7 2->7         started        11 mXOAcVlQZdpwS.exe 5 2->11         started        13 svchost.exe 1 1 2->13         started        process3 dnsIp4 43 C:\Users\user\AppData\...\mXOAcVlQZdpwS.exe, PE32 7->43 dropped 45 C:\...\mXOAcVlQZdpwS.exe:Zone.Identifier, ASCII 7->45 dropped 47 C:\Users\user\AppData\Local\...\tmp2401.tmp, XML 7->47 dropped 49 C:\Users\user\...\xv4UodPpMoH1Los.exe.log, ASCII 7->49 dropped 63 Uses schtasks.exe or at.exe to add and modify task schedules 7->63 65 Adds a directory exclusion to Windows Defender 7->65 16 powershell.exe 23 7->16         started        19 powershell.exe 23 7->19         started        21 schtasks.exe 1 7->21         started        29 5 other processes 7->29 67 Antivirus detection for dropped file 11->67 69 Multi AV Scanner detection for dropped file 11->69 23 schtasks.exe 11->23         started        25 vbc.exe 11->25         started        27 vbc.exe 11->27         started        31 3 other processes 11->31 51 127.0.0.1 unknown unknown 13->51 file5 signatures6 process7 signatures8 53 Loading BitLocker PowerShell Module 16->53 33 conhost.exe 16->33         started        35 WmiPrvSE.exe 16->35         started        37 conhost.exe 19->37         started        39 conhost.exe 21->39         started        41 conhost.exe 23->41         started        process9
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Suspicious
First seen:
2025-05-07 08:16:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
29 of 37 (78.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hfwymoziz7qcs64zqzp2un6gu4dzkr7ayj23x3kmjqgoori26tjq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
0ba74e4e09ceb57eaa496190d358878745ce81fa0ba6a1834948ab558a058b10
Formbook
224a983cf39f1db150d2407badf54a922ee2ea9984cb369cc99bacfda1513378
Formbook
61823f8b8948aa13ec857248830031280ae6cb0eb0b64254fca74983782ed9ce
Formbook
f3b03dd677c48f38d3e407c423b77ff7b8e5a51cf096cb4673f6f0f016bd6b3c
Formbook
+ 1'011 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hi13 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250511-mv9xvsar8v/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Uses the VBS compiler for execution
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5a29fef8-45b7-4d11-b213-ab11e7c4df2d
Unpacked files
SH256 hash:
396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3
MD5 hash:
40cd9945dcd762e8d9374576449e1d9f
SHA1 hash:
a6ee95a9d4acae19d10e44ef7a48896e36ee3ef5
Link:
https://www.unpac.me/results/4e9b0686-33f4-4b85-8869-c58f290f6d6f/
SH256 hash:
6a8728bdf199cb2fe3a63cb8a2e6657e70214f046b08d9f0c2ed57100f24dd50
MD5 hash:
8345e6fb7d3b4fa69ac397f10e6c1d41
SHA1 hash:
71b04645f3813278737d63e0abd0acc4ec7a9bd2
Link:
https://www.unpac.me/results/4e9b0686-33f4-4b85-8869-c58f290f6d6f/
SH256 hash:
778aea92ee38e4ed97924968c3597611bddf8b70a98cad7182bfc8fea568c41e
MD5 hash:
98c8bee9f7da0ae35f89e26dc2a5b499
SHA1 hash:
e34ea523723698651db2e3d8798ea30d8efe96e2
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/4e9b0686-33f4-4b85-8869-c58f290f6d6f/
SH256 hash:
f7b2a1307788383e625f5e97e8b6493d83d3d5dc92e6668b4021089c31f95b60
MD5 hash:
01dee027b928c11106c8eedee12872e5
SHA1 hash:
9688743d5cb6c7d6bf8bc89b32c8336f3f12293d
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/4e9b0686-33f4-4b85-8869-c58f290f6d6f/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/396d863b28cf/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/396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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: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.

Malspam

Formbook

zip 64ea2a7349443d90607fc30bd63b1169661fbc01460e232db40c046501614f64

Formbook

Executable exe 396d863b28cfe0297b99865faa37c6a7079547e0c275bbed4c4c0ce7451af4d3

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 64ea2a7349443d90607fc30bd63b1169661fbc01460e232db40c046501614f64
  
Dropped by
MD5 86141b41cbdc4b8f9b8c0b0f6b11656c

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

Comments