MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a400163ff05373a5b8f7d0eb5e2b3efebbde782cafb1b4bd167aaa6cc2b4e9d9. 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
| SHA256 hash: | a400163ff05373a5b8f7d0eb5e2b3efebbde782cafb1b4bd167aaa6cc2b4e9d9 |
|---|---|
| SHA3-384 hash: | ea6629ad5921fd733db9d54d192169108bee3ce2a79e34f3fc003b0ca1692bf6c646582d5be4065de52886989ccd44ba |
| SHA1 hash: | 72b7fbf8894b625e5e0dd84dcb00259c89f88d93 |
| MD5 hash: | 29bfdf7b05c8d98dbf70b79fc522fb41 |
| humanhash: | wisconsin-september-chicken-vermont |
| File name: | 29bfdf7b05c8d98dbf70b79fc522fb41.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 718'336 bytes |
| First seen: | 2023-12-06 16:44:08 UTC |
| Last seen: | 2023-12-06 18:25:27 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:VueH5qHvGFrK1ImMMGigMIMbYT4ck0CxgaLDITtCbXAFxmz69zrvpK0bN9L2:TqPcK1Izu7G4dxgaITMA7mw780 |
| Threatray | 207 similar samples on MalwareBazaar |
| TLSH | T125E4025123B81F27EBB35BFA2664252413B9692B3676F3890EC630D91460F055F82F6F |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
309
Origin country :
NLVendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a 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)
Searching for the window
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
Labled as:
Trojan.Generic
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Malicious Packer
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2023-12-06 09:49:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
13 of 37 (35.14%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 197 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
a89bac9dc367e40e1c54fe9bba3fdbecaf37ade14a6e48793671c7ab1b90eeba
MD5 hash:
a4facccc3557e6f06dda9fde43949f3c
SHA1 hash:
c060cd4a2eef1dde284a8c11b12e551fcf884387
SH256 hash:
070e8a42b47f7cb36c6ee9335c0a6341ba66681fb4e694deb06ceff90e453201
MD5 hash:
bbfa42b89636baa3484077a3315795fd
SHA1 hash:
a07cbb0e73aec5c44c0eebd3e28ccdd01a529f33
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
SH256 hash:
d9c6346436a57a12864498cfe6fa20b817ead09f79279fb43ae0dc6fca4b6074
MD5 hash:
bf450f65d64840de0d0eee2a5e833783
SHA1 hash:
be6a6e783ea20806cc6d192961bb43a5282a9ce6
SH256 hash:
e72b64e3119db4738c1525a4f336d9343da4196939b9e38143c684b5f1e1b5aa
MD5 hash:
dde684e9f1482a79b0dc510cb9f5fcf9
SHA1 hash:
a39dddb3e0d3408e46b7ec63ec0477fd613b4546
SH256 hash:
a400163ff05373a5b8f7d0eb5e2b3efebbde782cafb1b4bd167aaa6cc2b4e9d9
MD5 hash:
29bfdf7b05c8d98dbf70b79fc522fb41
SHA1 hash:
72b7fbf8894b625e5e0dd84dcb00259c89f88d93
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
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: | 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: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| 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: | Windows_Trojan_Formbook |
|---|---|
| Author: | @malgamy12 |
| Rule name: | Windows_Trojan_Formbook_1112e116 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_formbook_w0 |
|---|---|
| Author: | @malgamy12 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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