MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 57f8b41ab0670d66bd0c9c6d4a21268b96b5501fc33dd6e5a8b58a09983155b6. 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: | 57f8b41ab0670d66bd0c9c6d4a21268b96b5501fc33dd6e5a8b58a09983155b6 |
|---|---|
| SHA3-384 hash: | 39eb28c2e821df9c86411a1b71058d0f32cdd238db22393aea201975627dbf61a03209b7db7c1ef95b5b3a0163507214 |
| SHA1 hash: | 25979f67b011d578c2cca0a74ab48b1119c8b46d |
| MD5 hash: | f7c5207baab90097db05c2359bd6b21a |
| humanhash: | rugby-massachusetts-october-steak |
| File name: | SecuriteInfo.com.Win32.CrypterX-gen.23154.5963 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 972'800 bytes |
| First seen: | 2024-07-23 11:54:07 UTC |
| Last seen: | 2024-07-26 09:04:54 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger) |
| ssdeep | 12288:P6ub9XjilseLYBhXrMeT7e7yIw9LNg9ZunLPQeZv5KbqpjGAYYMPDthjU0AV:hes9re7lw9Wr85Zv5Kb0iVDt/AV |
| TLSH | T16C25023A1BD50814D6BD897882B4452483B3F66F4872E37D268CA1F95F33756AE123B3 |
| 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) (4504/4/1) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
390
Origin country :
FRVendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
Generic Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
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:
DarkTortilla, FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 DarkTortilla Crypter
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-07-23 06:42:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
23 of 24 (95.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
55574f49f2d8a831f29d44621c8647a73a3651243f96d42daca83bb669d779c0
MD5 hash:
a4d9e3adebd2d442e6a41344889fd2d7
SHA1 hash:
3ed604d487de30e5d900cb9bf0b2c55dd6b7f5f9
SH256 hash:
56aaa2b9e53d69dd75c8d1247220d8ea97b1b7705796b2e2ddff34c7eea8adee
MD5 hash:
50f28d178452b2db4e1f466904e55c78
SHA1 hash:
d9a3246a570715d756a6c653b6818afb99ae39ec
SH256 hash:
0781f74db6c9ff7aa0c1e76dd0ebc4a9575fba6caca9aac9fb0131c5a73c84be
MD5 hash:
2c064163cda2f093cf6d20302481dff7
SHA1 hash:
cf948b10d999c369ef51972f86278a4f536d400d
SH256 hash:
2db82e9b91b1ccb1957b4e06ec49bfb0096e973213fc1786de1bbe3162f5df5a
MD5 hash:
27dea42a70bd7e948f1171ce873878a1
SHA1 hash:
b87051d51479c093cdf3e721acea4fd8b940b1e5
SH256 hash:
57f8b41ab0670d66bd0c9c6d4a21268b96b5501fc33dd6e5a8b58a09983155b6
MD5 hash:
f7c5207baab90097db05c2359bd6b21a
SHA1 hash:
25979f67b011d578c2cca0a74ab48b1119c8b46d
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| 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.
No further information available
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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