MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47f864675366fb037a82ab00b3a888feece7a673376e7eb1fcb38cfd3213ccaa. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 47f864675366fb037a82ab00b3a888feece7a673376e7eb1fcb38cfd3213ccaa
SHA3-384 hash: b1f88555ce480515d9ecfb5653982af5d1f55af9bd8750452eb60208c95828e384d5d89ef5488e0777774f350baa17cb
SHA1 hash: 3f2be8dfc70f4b0c57538da14eecc85169298fe5
MD5 hash: a0ec318b1c44b86b2c31ebb1c2e9ab0e
humanhash: kilo-emma-fix-lima
File name:47f864675366fb037a82ab00b3a888feece7a673376e7eb1fcb38cfd3213ccaa
Download: download sample
Signature Formbook
File size:942'080 bytes
First seen:2022-10-10 11:49:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:shLuyAHh2NYuyygae8yVZnM2pjVpBdeyosLAdW0/jcUca1KvbwGNr/1:shLuyycver/jVndeTsAW0rcU7KvbVNR
TLSH T14B15E0232AEA0B0BD02973B491A1C6B053B99C55E477C3876FCA7C9FB0B77608760756
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 719950 Sample: 3fYQPnqYSV.exe Startdate: 11/10/2022 Architecture: WINDOWS Score: 100 31 www.jayamsandss.com 2->31 33 jayamsandss.com 2->33 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 6 other signatures 2->45 9 3fYQPnqYSV.exe 3 2->9         started        signatures3 process4 file5 23 C:\Users\user\AppData\...\3fYQPnqYSV.exe.log, ASCII 9->23 dropped 55 Injects a PE file into a foreign processes 9->55 13 3fYQPnqYSV.exe 9->13         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 13->57 59 Maps a DLL or memory area into another process 13->59 61 Sample uses process hollowing technique 13->61 63 Queues an APC in another process (thread injection) 13->63 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.gethospital.com 104.21.5.215, 49699, 80 CLOUDFLARENETUS United States 16->25 27 natroredirect.natrocdn.com 85.159.66.93, 49700, 49701, 80 CIZGITR Turkey 16->27 29 2 other IPs or domains 16->29 35 System process connects to network (likely due to code injection or exploit) 16->35 37 Performs DNS queries to domains with low reputation 16->37 20 explorer.exe 13 16->20         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 20->47 49 Tries to harvest and steal browser information (history, passwords, etc) 20->49 51 Deletes itself after installation 20->51 53 2 other signatures 20->53
Threat name:
ByteCode-MSIL.Trojan.Leonem
Status:
Malicious
First seen:
2022-09-23 19:06:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:aixo rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
7c650b9f912e13be21d4e9d09eb0820213ad0549421d629822174657ea811079
MD5 hash:
1baa089aea9857858eb104e4c68b59a9
SHA1 hash:
af745e909a411cfd67bebebdca4ad4a5843bf429
Detections:
XLoader win_formbook_auto win_formbook_g0
SH256 hash:
6086d0b1e30e00ba69e3e57cff18c5a8042e0f74926d44c28599076051f610a6
MD5 hash:
262e7e7d077555f1f431a7175dc0fd94
SHA1 hash:
bfd9e7d470770b0a8ec796bf8a8ad919c8a3f67f
SH256 hash:
2470b39032f6182252039c88199016566b0de30c6aa02163a143427afedd12af
MD5 hash:
c3a1924684ca30ed22234ce1d9111dfc
SHA1 hash:
7347706241422758c06440fd6044ae4e042b456b
SH256 hash:
5b6c6abdf26c4c7f70f0b2dd5c4d4397997e7aec6a84556287dc30534a1a1515
MD5 hash:
6286abbbaea39157e7bf58bf8f44b533
SHA1 hash:
255380121e8a9bbc445954cd72e8c0f81ee31657
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
47f864675366fb037a82ab00b3a888feece7a673376e7eb1fcb38cfd3213ccaa
MD5 hash:
a0ec318b1c44b86b2c31ebb1c2e9ab0e
SHA1 hash:
3f2be8dfc70f4b0c57538da14eecc85169298fe5
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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.

Comments