MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16ed2c1ca3967a5d35b8ed2607aa76b4be05d6a51b89c97a46a3c37f6a579814. 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: 17


Intelligence 17 IOCs YARA 22 File information Comments

SHA256 hash: 16ed2c1ca3967a5d35b8ed2607aa76b4be05d6a51b89c97a46a3c37f6a579814
SHA3-384 hash: 23de2603d8de8d3dd7be7624c3ce897f679ab6cc0831d6dc80911c6cadfb511a92936ad85779ffc8d3b1f423ce6c4231
SHA1 hash: e2eb809b19dffea596517802ebea486266c82964
MD5 hash: bc1a922035f4abff944f17565a134c11
humanhash: tango-cold-utah-uranus
File name:Quotation 0000118257.exe
Download: download sample
Signature Formbook
File size:759'808 bytes
First seen:2025-09-10 01:09:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:zQIV58N2043lgywqV1+wQ3xX5O4/TKeoyvlXQuytO/Rp5wKVEOG:zN5800vqc3xX55vnXBySGAEO
Threatray 1'006 similar samples on MalwareBazaar
TLSH T138F40214225ADA06C5524FB02A71E3B42BA8AFDCF462D303CFDA7DDFB439E945985342
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 threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
126
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation 0000118257.exe
Verdict:
No threats detected
Analysis date:
2025-09-10 01:12:32 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-09T03:42:00Z UTC
Last seen:
2025-09-09T03:42:00Z UTC
Hits:
~1000
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1774369 Sample: Quotation 0000118257.exe Startdate: 10/09/2025 Architecture: WINDOWS Score: 100 33 www.ecpay-tw067.xyz 2->33 35 www.78452609.xyz 2->35 37 19 other IPs or domains 2->37 45 Suricata IDS alerts for network traffic 2->45 47 Antivirus detection for URL or domain 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 53 7 other signatures 2->53 11 Quotation 0000118257.exe 3 2->11         started        signatures3 51 Performs DNS queries to domains with low reputation 35->51 process4 file5 31 C:\Users\...\Quotation 0000118257.exe.log, ASCII 11->31 dropped 14 Quotation 0000118257.exe 11->14         started        process6 signatures7 63 Maps a DLL or memory area into another process 14->63 17 qOL4DJ42N8K.exe 14->17 injected process8 process9 19 proquota.exe 13 17->19         started        signatures10 55 Tries to steal Mail credentials (via file / registry access) 19->55 57 Tries to harvest and steal browser information (history, passwords, etc) 19->57 59 Modifies the context of a thread in another process (thread injection) 19->59 61 3 other signatures 19->61 22 NI7Hk9FaA.exe 19->22 injected 25 chrome.exe 19->25         started        27 firefox.exe 19->27         started        process11 dnsIp12 39 www.suvorr.tokyo 46.37.111.21, 49734, 49735, 49736 Y-INTERNETGB Spain 22->39 41 www.mireza.site 203.161.43.199, 49742, 49743, 49744 VNPT-AS-VNVNPTCorpVN Malaysia 22->41 43 8 other IPs or domains 22->43 29 WerFault.exe 4 25->29         started        process13
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.43 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-09-09 08:04:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
16ed2c1ca3967a5d35b8ed2607aa76b4be05d6a51b89c97a46a3c37f6a579814
MD5 hash:
bc1a922035f4abff944f17565a134c11
SHA1 hash:
e2eb809b19dffea596517802ebea486266c82964
SH256 hash:
b80f7f92c9d25bcbc8efef7e12526a8bbbdd9bffc5b5420b213a12714268bfc6
MD5 hash:
d78f08a59019a7499a7511f8bc113648
SHA1 hash:
4a849e0f6dd71abaf541ef4065ebf64da64d95a3
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
12dda0cd3b378fbced3071df357733426bb09e47c31fcc3ba6273650f67895dc
MD5 hash:
773c55854eb467033abb78bc2b667f80
SHA1 hash:
54bfd694185cd257abb4ee6b477dba12b971b9b9
SH256 hash:
0b7cdf9dbe6f165393c87acaad5aa65e6882b9d5c54550ef3c597737e0ad32ff
MD5 hash:
7e4ca1b335ac6a61c1477a46e04dbaad
SHA1 hash:
a2ca1a9641a0ddc668c93f5f89eac2b67ecd0f8e
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:CP_AllMal_Detector
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
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
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:shellcode
Author:nex
Description:Matched shellcode byte patterns
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 16ed2c1ca3967a5d35b8ed2607aa76b4be05d6a51b89c97a46a3c37f6a579814

(this sample)

  
Delivery method
Distributed via e-mail attachment

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