MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4dbbb6a236ecda465e03925d4daa2c1b3d6dfcae79f49f79a0890d93e13c7b85. 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: 15


Intelligence 15 IOCs YARA 9 File information Comments

SHA256 hash: 4dbbb6a236ecda465e03925d4daa2c1b3d6dfcae79f49f79a0890d93e13c7b85
SHA3-384 hash: 2eb576ec7ff01930d63778301d2760f783c6240c40d6c36bdf0baea8699e18f6ca2aca431fcafc8d0c90ad78b485b2de
SHA1 hash: 55f161e434e98834b881f0aeb74189324331befd
MD5 hash: 2f1883331403b7fa965dce7f13a34b76
humanhash: one-fanta-jersey-mountain
File name:08.05.2024-10.06.2024_Pdf.exe
Download: download sample
Signature Formbook
File size:763'904 bytes
First seen:2024-06-11 19:19:00 UTC
Last seen:2024-06-11 20:32:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:/X0pxqV36Di8BtLSyArMs+BhzFq5t31zKP8vOwz6ppYqODY4ZadxYtP5zdTgTKiH:VBFK0yAr1Yhs5fpGw+pjSHS+tP5zdT9q
Threatray 547 similar samples on MalwareBazaar
TLSH T156F4234D332C2BADC4BE47FA64322A10237D74AA5410DBA9DDCD1CEA1A63B549707B4B
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon ccc8a8cc30e06030 (10 x AgentTesla, 9 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
332
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4dbbb6a236ecda465e03925d4daa2c1b3d6dfcae79f49f79a0890d93e13c7b85.exe
Verdict:
Malicious activity
Analysis date:
2024-06-11 20:14:14 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
Execution Stealth Nekark
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
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:
rans.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses shutdown.exe to shutdown or reboot the system
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1455496 Sample: 08.05.2024-10.06.2024_Pdf.exe Startdate: 11/06/2024 Architecture: WINDOWS Score: 100 37 www.fungusbus.com 2->37 39 www.deviexp.com 2->39 41 4 other IPs or domains 2->41 45 Snort IDS alert for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 8 other signatures 2->51 10 08.05.2024-10.06.2024_Pdf.exe 4 2->10         started        signatures3 process4 file5 35 C:\...\08.05.2024-10.06.2024_Pdf.exe.log, ASCII 10->35 dropped 63 Adds a directory exclusion to Windows Defender 10->63 65 Injects a PE file into a foreign processes 10->65 14 08.05.2024-10.06.2024_Pdf.exe 10->14         started        17 powershell.exe 23 10->17         started        signatures6 process7 signatures8 67 Maps a DLL or memory area into another process 14->67 19 XLjbKXQevmwu.exe 14->19 injected 69 Loading BitLocker PowerShell Module 17->69 22 WmiPrvSE.exe 17->22         started        24 conhost.exe 17->24         started        process9 signatures10 53 Found direct / indirect Syscall (likely to bypass EDR) 19->53 26 shutdown.exe 13 19->26         started        process11 signatures12 55 Tries to steal Mail credentials (via file / registry access) 26->55 57 Tries to harvest and steal browser information (history, passwords, etc) 26->57 59 Modifies the context of a thread in another process (thread injection) 26->59 61 3 other signatures 26->61 29 XLjbKXQevmwu.exe 26->29 injected 33 firefox.exe 26->33         started        process13 dnsIp14 43 parkingpage.namecheap.com 91.195.240.19, 51365, 80 SEDO-ASDE Germany 29->43 71 Found direct / indirect Syscall (likely to bypass EDR) 29->71 signatures15
Threat name:
ByteCode-MSIL.Trojan.SpyNoon
Status:
Malicious
First seen:
2024-06-11 19:20:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
9ff342350e6d6f03dccf9c815146d04ee3ca9b7d0566e6523b3e0a64f469c4d4
MD5 hash:
95782aaebcec9bb40a07285223209593
SHA1 hash:
1c3aa8e398043b8678c9fe0f375c40888e394f14
SH256 hash:
6c930aafb95d521a2f65142afb27527cb07492258b8e520b81388758b4ad066d
MD5 hash:
d50c22df5bc525ae86fbe034324165d1
SHA1 hash:
1427f5d6976f909e69e7655dd12bcf47e2711648
SH256 hash:
12ea7eb2f831a7dc36fe4c17339b596eeaf8172128702980445a84a99c999652
MD5 hash:
4c10c17ef441131be094d57364ca7338
SHA1 hash:
c1cfc5875ea5f6976c3d6234f0ded2421c292234
SH256 hash:
1a1de9f3fe4c3a7ea7cd547cdd9d78b3873d6e243e544e5bb647452d6d9f6cfe
MD5 hash:
ceb52a5c98659e8905ea76737fe00c01
SHA1 hash:
bb7b30ff84d6aa26eaa0021c9fa3cd2c5a08e694
SH256 hash:
6243c709db7165f4a84036c0544b462ee9539412c61de6151a6aa18465659e48
MD5 hash:
5166d8930d5a1bf5a1738cc180587975
SHA1 hash:
4316633ea531432ff67776d1e59dcf8481a7cbbc
SH256 hash:
4dbbb6a236ecda465e03925d4daa2c1b3d6dfcae79f49f79a0890d93e13c7b85
MD5 hash:
2f1883331403b7fa965dce7f13a34b76
SHA1 hash:
55f161e434e98834b881f0aeb74189324331befd
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:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
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: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.

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments