MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 80bb6faabfb8cfdfc6f858a50b3893f0df49b414087619470cafce4ea26af74c. 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: 13


Intelligence 13 IOCs YARA 21 File information Comments

SHA256 hash: 80bb6faabfb8cfdfc6f858a50b3893f0df49b414087619470cafce4ea26af74c
SHA3-384 hash: d1aa8fcc56f59f350c452b75fda602b030f09f85900e9afc634294e0cb1efd7aedad7e701dfd2fc94fc0da18985200d7
SHA1 hash: b166c7e1a06a1a1af0b00e3a696de323983faec2
MD5 hash: ceccf9c702cec9bf92bdcb828beca655
humanhash: utah-moon-black-friend
File name:31102023_cmlmaas_dekont.exe
Download: download sample
Signature Formbook
File size:574'976 bytes
First seen:2023-11-01 06:49:08 UTC
Last seen:Never
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:tLpkoaH/qViAGaNIy5+nnyvjnLFzEXr8Cz9HZztXZuG8YwxAhuQEEqzRlsmGRtd:BpgiViAgyIyXJEAyZtXB87xAMdEZmG
Threatray 227 similar samples on MalwareBazaar
TLSH T1B1C4235035ED67A3F0FC3BFA9C2522604775A161A690CB195CE7B2FE2963F428644F23
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
300
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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:
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
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1335274 Sample: 31102023_cmlmaas_dekont.exe Startdate: 01/11/2023 Architecture: WINDOWS Score: 100 29 www.watertownautoct.com 2->29 31 www.tonyowendesign.com 2->31 33 12 other IPs or domains 2->33 49 Multi AV Scanner detection for domain / URL 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 6 other signatures 2->55 10 31102023_cmlmaas_dekont.exe 3 2->10         started        signatures3 process4 signatures5 59 Injects a PE file into a foreign processes 10->59 13 31102023_cmlmaas_dekont.exe 10->13         started        process6 signatures7 61 Maps a DLL or memory area into another process 13->61 63 Queues an APC in another process (thread injection) 13->63 16 sAIDNkZTKnQMLtsLkJMmatF.exe 13->16 injected process8 process9 18 WWAHost.exe 13 16->18         started        signatures10 41 Tries to steal Mail credentials (via file / registry access) 18->41 43 Tries to harvest and steal browser information (history, passwords, etc) 18->43 45 Deletes itself after installation 18->45 47 4 other signatures 18->47 21 explorer.exe 7 1 18->21 injected 25 sAIDNkZTKnQMLtsLkJMmatF.exe 18->25 injected 27 firefox.exe 18->27         started        process11 dnsIp12 35 www.tonyowendesign.com 156.234.202.34, 49735, 49736, 49737 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 21->35 37 cebede24.com 81.169.145.76, 49719, 49720, 49721 STRATOSTRATOAGDE Germany 21->37 39 6 other IPs or domains 21->39 57 System process connects to network (likely due to code injection or exploit) 21->57 signatures13
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-10-31 13:46:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
a415414e68d200b7ba63c49c7e6df646d04c5859b1aab6ce0393c505f8fc9b1c
MD5 hash:
a9a8418c823334769794df3c4d967962
SHA1 hash:
aa2e724493d4f57186c4fd0ae1bc20ce4406776b
SH256 hash:
32930eced61edf40fb7def83262c3bc3a813252cf00a2d6bcea98a403d0334f6
MD5 hash:
e8d574ef02bc52e1762bc68fca43daa5
SHA1 hash:
dd61451607b183a565bf3962660f1f3d243c4b5d
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
SH256 hash:
321b9837024c717dd5b2ad4217a7e2734e368bdb58918437baf42f46a34149b1
MD5 hash:
91412a60691a2512ab0becb2f7002a32
SHA1 hash:
70fe342dd601a4b6a3fb67202c9ea3b3fea31b5c
SH256 hash:
80bb6faabfb8cfdfc6f858a50b3893f0df49b414087619470cafce4ea26af74c
MD5 hash:
ceccf9c702cec9bf92bdcb828beca655
SHA1 hash:
b166c7e1a06a1a1af0b00e3a696de323983faec2
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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: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: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
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.

Malspam

Formbook

Executable exe 80bb6faabfb8cfdfc6f858a50b3893f0df49b414087619470cafce4ea26af74c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments