MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 0ef79e437940966dfb48f567338b43b6fb4d8d1bc50bee90ee35491abed66fa9. 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
| SHA256 hash: | 0ef79e437940966dfb48f567338b43b6fb4d8d1bc50bee90ee35491abed66fa9 |
|---|---|
| SHA3-384 hash: | c8f0bbed1669b7b27bd6c4755ee15cfb0f6c11339c8f26b0ecfc04b9ca74ac18b913c92bfda19963e50bea59c7f3603f |
| SHA1 hash: | 638777296d6391614ec376ba1df4c65d4a1af8e7 |
| MD5 hash: | 17dcf951640230cdc8f99679f12ec3a4 |
| humanhash: | undress-juliet-mockingbird-chicken |
| File name: | SecuriteInfo.com.Trojan-Spy.FormBook.13164.17095 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 791'040 bytes |
| First seen: | 2025-07-31 04:16:33 UTC |
| Last seen: | 2025-08-12 14:59:18 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'794 x AgentTesla, 19'692 x Formbook, 12'274 x SnakeKeylogger) |
| ssdeep | 24576:C/KBeM6Qykw1ihMFyPUwxslTf+6ywpV8YR5c+s//:tBeM6lP5wx0ICV8YlS/ |
| Threatray | 2'064 similar samples on MalwareBazaar |
| TLSH | T1A8F4E00076B98F12C8AA93F04571E1B107F57EAEA911E31E8EE43DDB7275F914A80B53 |
| 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 | d8d8dadad9d999d8 (8 x Formbook, 4 x AgentTesla, 3 x SnakeKeylogger) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
4
# of downloads :
63
Origin country :
FRVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
SecuriteInfo.com.Trojan-Spy.FormBook.13164.17095
Verdict:
Malicious activity
Analysis date:
2025-07-31 04:17:41 UTC
Tags:
auto-sch-xml formbook xloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
92.5%
Tags:
micro spawn shell
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
base64 bitmap fingerprint obfuscated packed packed reconnaissance roboski stego
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Malware family:
KeyBase
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable PDB Path PE (Portable Executable) SOS: 0.39 Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-07-31 03:50:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
21 of 37 (56.76%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_037
Similar samples:
+ 2'054 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery execution persistence
Behaviour
Scheduled Task/Job: Scheduled Task
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
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
0ef79e437940966dfb48f567338b43b6fb4d8d1bc50bee90ee35491abed66fa9
MD5 hash:
17dcf951640230cdc8f99679f12ec3a4
SHA1 hash:
638777296d6391614ec376ba1df4c65d4a1af8e7
SH256 hash:
8f3300976d94917d7a9873817669e8f2a4906e19eae812c39c72651004e011c8
MD5 hash:
a4546294e68738c44ec3371bc214a03e
SHA1 hash:
4acfe9c603c3a6f0c175347c6d1c2cc0ce7d28d0
SH256 hash:
125b02adffc493d9807822818a31b7e74b9e32173866cc9ca6fc530e3487ad2f
MD5 hash:
460083e307c8f25554bc21777bf2382c
SHA1 hash:
91946002760be9d4c961176d6a3aa7aab514ef26
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
6005f0e4563fef5e8abfdb88cacd5b3d8fd4cff04b1af93e8e01a9990f46d5c0
MD5 hash:
3f17ed370489371093c2a3d768cb6b07
SHA1 hash:
fb4f0ddcaf872e4c7850e4cefad59a2c62f54424
SH256 hash:
be578a3b4d4460c09dbe913761cc17be49328a48cc1d05d8babb21196f5b3bba
MD5 hash:
c717b3406444f158777d730febc82ef0
SHA1 hash:
06e73cefdd76e7020342144f38291e90208273c4
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | schmidtsz |
| Description: | Identify partial Agent Tesla strings |
| 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: | 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.
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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