MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ab7f85f4adde2c79c6c465b22e43f09a8bbba24b47b477ef00c2729ebd6bf268. 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: 11
| SHA256 hash: | ab7f85f4adde2c79c6c465b22e43f09a8bbba24b47b477ef00c2729ebd6bf268 |
|---|---|
| SHA3-384 hash: | c5fa204de0c1f2cd665d9eec46865573af344ffe8c386cb1913f634e652558e26dd7220bbb65e40f56145dc114b9bb69 |
| SHA1 hash: | 26861e1203ea60ddba450b9223f4da0072e29735 |
| MD5 hash: | 09b88ab4bf59c36094bafec7a32bafed |
| humanhash: | march-spring-potato-illinois |
| File name: | wlanext.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 711'680 bytes |
| First seen: | 2023-11-28 16:54:07 UTC |
| Last seen: | 2023-11-28 18:15:34 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:5wh7T6eE++l9jv4v7yl3ZtL1LbiTdWT8Korq9kFYeAHICjO8wVQmbCpANi:5whX6e49jvYQ3H1vd8b29XwE |
| Threatray | 241 similar samples on MalwareBazaar |
| TLSH | T1F2E41284327DCB13E67A93F7A5A220114BF6788B6570D6A89EC223DFA561F004F54F1B |
| TrID | 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.0% (.EXE) Win64 Executable (generic) (10523/12/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.2% (.EXE) Win32 Executable (generic) (4505/5/1) 1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| Reporter |  James_inthe_box |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
303
Origin country :
USVendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
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.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)
Snort IDS alert for network traffic
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:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-11-28 14:19:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
22 of 37 (59.46%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 231 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:
c4db24ba598dcc15e458176c4023931cd2b9957716ddf7ffb5af74ce07c98355
MD5 hash:
41bbdbcd06093931a1bc4a6fa411b869
SHA1 hash:
dbc72399ebdb63539d34c63f743c41ff4c8dcaea
SH256 hash:
d77dc3dbf2bcee738adc6a1c0ba1d512e1aaef9a9af0c6c724ee6c2dc2174274
MD5 hash:
368252a4ea25fb3f02788cd1acd219a6
SHA1 hash:
272c0533896a4cb37b73d498ecf17cd451b4a703
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
SH256 hash:
f5a8f5ded618fd3989fa98a3c2d87c4853d6e10ecb1313cd5ddd7df375336b31
MD5 hash:
243f9990bb7d68a3f6e4d3999800da5b
SHA1 hash:
ba555175d12f19f6288a3574738bcd6c8b747e3b
SH256 hash:
3c7546f283224a67f47d9f45047a01a860c9dba004a55f068aa25a61b9f26ebb
MD5 hash:
87b45ccca64d51d89dddc6fb894ba784
SHA1 hash:
063bba00017faffc6939a7ceae79d546d1a07c3c
SH256 hash:
ab7f85f4adde2c79c6c465b22e43f09a8bbba24b47b477ef00c2729ebd6bf268
MD5 hash:
09b88ab4bf59c36094bafec7a32bafed
SHA1 hash:
26861e1203ea60ddba450b9223f4da0072e29735
Verdict:
Malicious
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: | 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.
Delivery method
Other
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