MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a4ad5a05b9140ab9fe748d59fcadfaec272b6b8eecad5bc1eb2f1d700e353e52. 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: | a4ad5a05b9140ab9fe748d59fcadfaec272b6b8eecad5bc1eb2f1d700e353e52 |
|---|---|
| SHA3-384 hash: | 8c1e8cf9cd3f9af3ca27cdaf2e44d08abbd12f011cebdb9c8c02abab56ec603ae97565614cba99c301edc64e019e2c9d |
| SHA1 hash: | f8928bde922e22662b869cf791ff6a267c17371a |
| MD5 hash: | f8d262bf2edf7c8753ef998f17ff521b |
| humanhash: | fix-bluebird-delta-zebra |
| File name: | Curriculum Vitae Silvia M Helena.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 775'680 bytes |
| First seen: | 2023-11-28 14:06:37 UTC |
| Last seen: | 2023-11-28 15:18:11 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:hGPQmbCp18kpUQWxaDxYHxcZAjvaoeu2WedHBv+uB7R:nssxY4AQ+c |
| Threatray | 289 similar samples on MalwareBazaar |
| TLSH | T126F4E02437BD2F23E07A97F94022266007B939AF103DE6D82DD271DB29B4F544B89E57 |
| 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 |  malwarelabnet |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
299
Origin country :
CAVendor Threat Intelligence
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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.
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-11-28 13:07:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
20 of 36 (55.56%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 279 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
e6ccaf8022d2357ff69a06944514c34a3beca7dfcf36dd9eda71340635fbcaaf
MD5 hash:
4c1d6064b5e709694f8acb629a6b5ef8
SHA1 hash:
714a2aef5c46d23c1ad4f3e3850887c50a25555d
SH256 hash:
b9fa9b1d7c9905851ede233e43297f94bfc9cb511c9223f1897a13a36140c16d
MD5 hash:
db5366bb690034d5195fc30cb96e2cb9
SHA1 hash:
89fe4814947b3206510e7aef16b9771e133a148f
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
SH256 hash:
f5a8f5ded618fd3989fa98a3c2d87c4853d6e10ecb1313cd5ddd7df375336b31
MD5 hash:
243f9990bb7d68a3f6e4d3999800da5b
SHA1 hash:
ba555175d12f19f6288a3574738bcd6c8b747e3b
SH256 hash:
b49c4620538e219576949980253607c16a79fefee7f6930af87bab125dbfe6c2
MD5 hash:
dd33b4c04c2d053cefc5d432dae8f468
SHA1 hash:
a3d870a9c84bea45b05c73df294cf73fe5b89c77
SH256 hash:
a4ad5a05b9140ab9fe748d59fcadfaec272b6b8eecad5bc1eb2f1d700e353e52
MD5 hash:
f8d262bf2edf7c8753ef998f17ff521b
SHA1 hash:
f8928bde922e22662b869cf791ff6a267c17371a
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: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| 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: | 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.
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