MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6174325a618dc0074601bbf4181a7cac9245e99449ebf0a8080511fbe3e7c62e. 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 16 File information Comments

SHA256 hash: 6174325a618dc0074601bbf4181a7cac9245e99449ebf0a8080511fbe3e7c62e
SHA3-384 hash: c9f6e023d8388025638a11540ab1a6fe2fe5f9b3674842b14d7e06387849e8c846312bc22883c2891612bd9dfbda2206
SHA1 hash: 751637a10650b7398e358b977e89f8ffc7127e32
MD5 hash: 1f27e4b60d8457d99c063cf18e81a31f
humanhash: green-ten-friend-asparagus
File name:Supply proposal For #PO02346611pdf.exe
Download: download sample
Signature Formbook
File size:864'264 bytes
First seen:2025-05-07 09:57:50 UTC
Last seen:2025-05-11 10:40:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:5K3nWLhUWRz8FGmVwVHGs84IDI1X72Gj93oEbo7YbTVrUM5d+bAzxrJ+9RRhkA0d:5YnyUWismVOL2GB3oVYbpz8kC9OA0lr
TLSH T19605E0197668AF52D4765BF805A0F9341BF12E0FA429E2465FD66CEFB861F001F08B93
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 79d4c8a8d4e87190 (3 x AgentTesla, 2 x Formbook, 1 x Loki)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
482
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
6174325a618dc0074601bbf4181a7cac9245e99449ebf0a8080511fbe3e7c62e.exe
Verdict:
Malicious activity
Analysis date:
2025-05-07 09:59:01 UTC
Tags:
formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
phishing kryptik spawn msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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 packer_detected signed vbnet
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1683112 Sample: Supply proposal For #PO0234... Startdate: 07/05/2025 Architecture: WINDOWS Score: 100 69 www.yj889.xyz 2->69 71 www.umhyal3gvbpl.xyz 2->71 73 3 other IPs or domains 2->73 87 Suricata IDS alerts for network traffic 2->87 89 Found malware configuration 2->89 91 Malicious sample detected (through community Yara rule) 2->91 95 13 other signatures 2->95 11 Supply proposal For #PO02346611pdf.exe 7 2->11         started        15 fxTQqnqjRe.exe 5 2->15         started        17 svchost.exe 2->17         started        signatures3 93 Performs DNS queries to domains with low reputation 71->93 process4 dnsIp5 59 C:\Users\user\AppData\...\fxTQqnqjRe.exe, PE32 11->59 dropped 61 C:\Users\...\fxTQqnqjRe.exe:Zone.Identifier, ASCII 11->61 dropped 63 C:\Users\user\AppData\Local\...\tmp7C4B.tmp, XML 11->63 dropped 65 Supply proposal Fo...02346611pdf.exe.log, ASCII 11->65 dropped 111 Writes to foreign memory regions 11->111 113 Allocates memory in foreign processes 11->113 115 Adds a directory exclusion to Windows Defender 11->115 20 vbc.exe 11->20         started        23 powershell.exe 22 11->23         started        25 powershell.exe 23 11->25         started        27 schtasks.exe 1 11->27         started        117 Multi AV Scanner detection for dropped file 15->117 119 Injects a PE file into a foreign processes 15->119 29 vbc.exe 15->29         started        31 schtasks.exe 15->31         started        33 vbc.exe 15->33         started        67 127.0.0.1 unknown unknown 17->67 file6 signatures7 process8 signatures9 97 Modifies the context of a thread in another process (thread injection) 20->97 99 Maps a DLL or memory area into another process 20->99 101 Sample uses process hollowing technique 20->101 105 3 other signatures 20->105 35 explorer.exe 40 1 20->35 injected 103 Loading BitLocker PowerShell Module 23->103 39 conhost.exe 23->39         started        41 WmiPrvSE.exe 23->41         started        43 conhost.exe 25->43         started        45 conhost.exe 27->45         started        47 conhost.exe 31->47         started        process10 dnsIp11 75 www.4khm.top 23.248.248.75, 49698, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS United States 35->75 77 204.79.197.203, 443 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 35->77 107 System process connects to network (likely due to code injection or exploit) 35->107 49 cmstp.exe 35->49         started        52 cmd.exe 35->52         started        signatures12 process13 signatures14 79 Modifies the context of a thread in another process (thread injection) 49->79 81 Maps a DLL or memory area into another process 49->81 83 Tries to detect virtualization through RDTSC time measurements 49->83 85 Switches to a custom stack to bypass stack traces 49->85 54 cmd.exe 49->54         started        process15 signatures16 109 Tries to detect virtualization through RDTSC time measurements 54->109 57 conhost.exe 54->57         started        process17
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-05-07 02:29:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
30 of 37 (81.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_037 formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:bi14 discovery execution rat spyware stealer trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
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
Unpacked files
SH256 hash:
6174325a618dc0074601bbf4181a7cac9245e99449ebf0a8080511fbe3e7c62e
MD5 hash:
1f27e4b60d8457d99c063cf18e81a31f
SHA1 hash:
751637a10650b7398e358b977e89f8ffc7127e32
SH256 hash:
6a8728bdf199cb2fe3a63cb8a2e6657e70214f046b08d9f0c2ed57100f24dd50
MD5 hash:
8345e6fb7d3b4fa69ac397f10e6c1d41
SHA1 hash:
71b04645f3813278737d63e0abd0acc4ec7a9bd2
SH256 hash:
68835ae78ea38c16034c6cef1a611befa1bc696d9ac49bb4c4bf192200f7d5a6
MD5 hash:
846b2cd3d986889fca5d89d286319085
SHA1 hash:
e2dba456436e0f2fa13438f4d9fd4b01a07eeb66
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
d95af64d63e35a6a0c7962b9cf6a1f359f4588e85985129d0da628eb08dc7d77
MD5 hash:
2080a63b6709fdd1d070de2fd2017ed7
SHA1 hash:
67e0b2512ab173b34ff436e5c42552973ff0277e
Detections:
win_formbook_auto win_formbook_w0 win_formbook_g0 FormBook Windows_Trojan_Formbook Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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

Executable exe 6174325a618dc0074601bbf4181a7cac9245e99449ebf0a8080511fbe3e7c62e

(this sample)

  
Delivery method
Distributed via e-mail attachment

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