MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 e4b2f31e7c9fb2df6cf161898f23653c49d758f8f733e5910b99f3fd998569e0. 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: | e4b2f31e7c9fb2df6cf161898f23653c49d758f8f733e5910b99f3fd998569e0 |
|---|---|
| SHA3-384 hash: | 316df98318ad8d9f6c0ed8c7c2de9ca898c846b8bed9a97322afe1dd280d1fbc1261396441572f0647fc1e059b64a727 |
| SHA1 hash: | af343255ec80b898fdc67301ab1c07d59dd70fb2 |
| MD5 hash: | 411b8eb23af4c2864c19e5539066d4b5 |
| humanhash: | double-magnesium-missouri-arkansas |
| File name: | SecuriteInfo.com.Win32.PWSX-gen.18902.20315 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 623'616 bytes |
| First seen: | 2023-10-31 04:40:22 UTC |
| Last seen: | 2023-10-31 06:44:43 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 12288:BUR6dwoaRPImELgdr8/SkKqDR2MHOsgpshhRpyacHVuTwjIJ25yyCWN:BUR6+558/SFWQMHJguhm1ty4 |
| Threatray | 12 similar samples on MalwareBazaar |
| TLSH | T1B0D423B87610D762D0A5237BE0740AE043E495BBBAE3DF6C5DC199C60D74B620339B6B |
| TrID | 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.2% (.SCR) Windows screen saver (13097/50/3) 9.0% (.EXE) Win64 Executable (generic) (10523/12/4) 5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | 08b266ca84c862b4 (6 x AgentTesla, 6 x Formbook, 4 x Loki) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
357
Origin country :
FRVendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
Labled as:
Malware
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
Allocates memory in foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-10-31 03:04:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 38 (57.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
eea319b7932453ae34203a7167e64c2bc89b4e8ca1987fb8c9ba0872cac6270d
MD5 hash:
837acc2c304e1dd8a16e539c0651aed4
SHA1 hash:
3741305d5a77a7107287fad1f1077b0af1878a3c
SH256 hash:
0ba1122a32e87e976c3c1076bc93d38b8da59635dd7541bbbe393cd6b76170ee
MD5 hash:
114a8ee279e136584a12827ac26ede30
SHA1 hash:
72a7bed5b5e5c5a69a5570772d22418bbe55e9f9
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
SH256 hash:
321b9837024c717dd5b2ad4217a7e2734e368bdb58918437baf42f46a34149b1
MD5 hash:
91412a60691a2512ab0becb2f7002a32
SHA1 hash:
70fe342dd601a4b6a3fb67202c9ea3b3fea31b5c
SH256 hash:
5b013aa18fc06f0a00817b1c8691b2b1b4c7a9592c0dfd67cf42bf90e0e2e5a5
MD5 hash:
c8e2820f17dd7ea7b885441034b56cef
SHA1 hash:
1a9396a459fd355c5bc0658deb6d5de8d3c0edd5
SH256 hash:
e4b2f31e7c9fb2df6cf161898f23653c49d758f8f733e5910b99f3fd998569e0
MD5 hash:
411b8eb23af4c2864c19e5539066d4b5
SHA1 hash:
af343255ec80b898fdc67301ab1c07d59dd70fb2
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: | 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: | 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: | 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 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
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