MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 789fabbbfa7aee3dcb77932312bb7a4a8facae1327dfd834c966ebb5aa7aea65. 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 17 File information Comments

SHA256 hash: 789fabbbfa7aee3dcb77932312bb7a4a8facae1327dfd834c966ebb5aa7aea65
SHA3-384 hash: 7e7361b5b891205a59ccaa7b6b2cb53f00baed1fb91aa7090d48f2c30fcee28ca0faf2fdbb3ad553ef97a54670a3e450
SHA1 hash: 9bfe24f8fa060fdd447cb1bd5c32d1318974f64d
MD5 hash: 8ceb39273e909637b997dfa6d05ae618
humanhash: one-muppet-mike-pennsylvania
File name:SecuriteInfo.com.Heur.21813.17790
Download: download sample
Signature Formbook
File size:664'064 bytes
First seen:2024-03-19 09:32:50 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:bdujpteUPkPpo6WF4EoruL6d+Qc2Y02KmKMSQm0359aKDTMBbOOJRYWq:4jLNkPpoaEo38kVXVMSfu5HkOOJb
Threatray 43 similar samples on MalwareBazaar
TLSH T1C6E4235ADC9D62E7CF6A8AFC18D52B60E2E44427F8D5EB496C00A8E739D73D00443779
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
339
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
789fabbbfa7aee3dcb77932312bb7a4a8facae1327dfd834c966ebb5aa7aea65.exe
Verdict:
Malicious activity
Analysis date:
2024-03-19 09:47:58 UTC
Tags:
formbook xloader stealer spyware

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
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.
Malware family:
MSIL Injector
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
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1411618 Sample: SecuriteInfo.com.Heur.21813... Startdate: 19/03/2024 Architecture: WINDOWS Score: 100 65 www.vertilehub.xyz 2->65 67 xiaoyue.zhuangkou.com 2->67 69 18 other IPs or domains 2->69 75 Snort IDS alert for network traffic 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 83 9 other signatures 2->83 10 SecuriteInfo.com.Heur.21813.17790.exe 7 2->10         started        14 LuJXzcN.exe 5 2->14         started        signatures3 81 Performs DNS queries to domains with low reputation 65->81 process4 file5 55 C:\Users\user\AppData\Roaming\LuJXzcN.exe, PE32 10->55 dropped 57 C:\Users\user\AppData\Local\...\tmp98A2.tmp, XML 10->57 dropped 85 Uses schtasks.exe or at.exe to add and modify task schedules 10->85 87 Writes to foreign memory regions 10->87 89 Allocates memory in foreign processes 10->89 97 2 other signatures 10->97 16 RegSvcs.exe 10->16         started        19 powershell.exe 23 10->19         started        21 powershell.exe 23 10->21         started        23 schtasks.exe 1 10->23         started        91 Antivirus detection for dropped file 14->91 93 Multi AV Scanner detection for dropped file 14->93 95 Machine Learning detection for dropped file 14->95 25 RegSvcs.exe 14->25         started        27 schtasks.exe 14->27         started        29 RegSvcs.exe 14->29         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 16->71 31 APrMMgiqbrjXzf.exe 16->31 injected 34 WmiPrvSE.exe 19->34         started        36 conhost.exe 19->36         started        38 conhost.exe 21->38         started        40 conhost.exe 23->40         started        42 conhost.exe 27->42         started        process9 signatures10 107 Maps a DLL or memory area into another process 31->107 109 Found direct / indirect Syscall (likely to bypass EDR) 31->109 44 newdev.exe 13 31->44         started        47 newdev.exe 31->47         started        process11 signatures12 99 Tries to steal Mail credentials (via file / registry access) 44->99 101 Tries to harvest and steal browser information (history, passwords, etc) 44->101 103 Writes to foreign memory regions 44->103 105 3 other signatures 44->105 49 APrMMgiqbrjXzf.exe 44->49 injected 53 firefox.exe 44->53         started        process13 dnsIp14 59 xiaoyue.zhuangkou.com 47.76.88.64, 49714, 49715, 49716 VODAFONE-TRANSIT-ASVodafoneNZLtdNZ United States 49->59 61 www.vertilehub.xyz 203.161.49.220, 49738, 49739, 49740 VNPT-AS-VNVNPTCorpVN Malaysia 49->61 63 8 other IPs or domains 49->63 73 Found direct / indirect Syscall (likely to bypass EDR) 49->73 signatures15
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2024-03-19 07:12:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Modifies registry class
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
Unpacked files
SH256 hash:
31d015abc0e2e30d7f9aad7f4c8ef1ae2781ffdee591f9edfe33b063a001fa65
MD5 hash:
c9a871d07d5fef5be8e96a68d7c16e82
SHA1 hash:
7d1b9ce6f6c341fecca002b2cfbce749bff2830f
SH256 hash:
f35ee8182ca1f1077c639e55ef9f95c6516dff1470a30e360d9c395110840538
MD5 hash:
93bda17d5beae552754d7aaf86c6bccf
SHA1 hash:
a578ee58abae1cb7df0d5cb8e9b0c07b1b43e55d
SH256 hash:
46ba28cbc0a0bd29d1b7d3e299db1eeed3f6c0fa0682581304333a8e07e3679e
MD5 hash:
10d540e51000014a463743c1b126b728
SHA1 hash:
9694a5508b6ef79ffe872f7813499b4c2918cc15
Detections:
INDICATOR_EXE_Packed_SmartAssembly
SH256 hash:
d45214f5a8b77444a13f5fb6a7c796113629a7a960ffeb60818afe868c94d518
MD5 hash:
145ad25b3bdd43b3bf47fce661fd29b1
SHA1 hash:
91959a0a139515a27c2b2666198092820e1508da
SH256 hash:
9390502a7498976297d699417f817c9e5443ce3d3f917a6d7fa3afa274adee58
MD5 hash:
49cc0ea9679ab31ce8bbfe3439f26c08
SHA1 hash:
63975a78f4b8a3f37a39ac1f0022e51b016dff64
SH256 hash:
789fabbbfa7aee3dcb77932312bb7a4a8facae1327dfd834c966ebb5aa7aea65
MD5 hash:
8ceb39273e909637b997dfa6d05ae618
SHA1 hash:
9bfe24f8fa060fdd447cb1bd5c32d1318974f64d
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: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.

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