MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a0c0bf6760f3967f8c77ba920c041e3a653821c70759e2913652219ad557520. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments

SHA256 hash: 1a0c0bf6760f3967f8c77ba920c041e3a653821c70759e2913652219ad557520
SHA3-384 hash: e2c1c3c10f1ecacfeb8dcb37f6a80e92696d232b9be4eb44184c4753c73d5f363b7ee2ba2a565d4ac56bb22c8fb07afc
SHA1 hash: 6b35a4c0c492123debd3c325feb4483f48ccd25c
MD5 hash: 14df2af56c6355892040137238cde8c7
humanhash: social-pip-tango-timing
File name:SecuriteInfo.com.TrojanLoader.MSIL.DaVinci.Heur.20960.8292
Download: download sample
Signature Formbook
File size:690'176 bytes
First seen:2025-02-24 02:33:39 UTC
Last seen:2025-03-10 11:32:04 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:HMr8I/sdYeXY/e13h4mCPGof7mZ6bQhy2Bzj+o2d4hodaClT9Qef6Ts:HMrb0RBhwGoSZ6EQ2JP2Gh0VHt6Ts
Threatray 2'232 similar samples on MalwareBazaar
TLSH T154E4F150771AF902C9A8E7B50671F67517386E9EA400E30B9FD97CEB7CB2B460D09683
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon ae2f032b0b030b8e (9 x MassLogger, 6 x Formbook, 5 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
5
# of downloads :
43
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
SecuriteInfo.com.TrojanLoader.MSIL.DaVinci.Heur.20960.8292.exe
Verdict:
Malicious activity
Analysis date:
2025-02-24 02:43:03 UTC
Tags:
formbook stealer xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
dropper virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected vbnet
Result
Verdict:
UNKNOWN
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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
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: 1622437 Sample: SecuriteInfo.com.TrojanLoad... Startdate: 24/02/2025 Architecture: WINDOWS Score: 100 71 www.r836068.xyz 2->71 73 www.romosinevitaveis.shop 2->73 75 5 other IPs or domains 2->75 79 Found malware configuration 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 Antivirus detection for URL or domain 2->83 87 8 other signatures 2->87 11 SecuriteInfo.com.TrojanLoader.MSIL.DaVinci.Heur.20960.8292.exe 7 2->11         started        15 ctccRwKyvHNd.exe 5 2->15         started        17 explorer.exe 2->17         started        signatures3 85 Performs DNS queries to domains with low reputation 71->85 process4 file5 65 C:\Users\user\AppData\...\ctccRwKyvHNd.exe, PE32 11->65 dropped 67 C:\Users\user\AppData\Local\...\tmp9367.tmp, XML 11->67 dropped 69 SecuriteInfo.com.T....20960.8292.exe.log, ASCII 11->69 dropped 103 Uses schtasks.exe or at.exe to add and modify task schedules 11->103 105 Writes to foreign memory regions 11->105 107 Allocates memory in foreign processes 11->107 115 2 other signatures 11->115 19 RegSvcs.exe 11->19         started        22 powershell.exe 23 11->22         started        24 powershell.exe 23 11->24         started        26 schtasks.exe 1 11->26         started        109 Multi AV Scanner detection for dropped file 15->109 28 RegSvcs.exe 15->28         started        30 schtasks.exe 15->30         started        111 System process connects to network (likely due to code injection or exploit) 17->111 113 Query firmware table information (likely to detect VMs) 17->113 signatures6 process7 signatures8 89 Modifies the context of a thread in another process (thread injection) 19->89 91 Maps a DLL or memory area into another process 19->91 93 Sample uses process hollowing technique 19->93 99 2 other signatures 19->99 32 explorer.exe 26 1 19->32 injected 95 Loading BitLocker PowerShell Module 22->95 34 WmiPrvSE.exe 22->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 26->40         started        97 Found direct / indirect Syscall (likely to bypass EDR) 28->97 42 conhost.exe 30->42         started        process9 process10 44 msiexec.exe 32->44         started        47 msiexec.exe 32->47         started        49 WerFault.exe 32->49         started        signatures11 117 Modifies the context of a thread in another process (thread injection) 44->117 119 Maps a DLL or memory area into another process 44->119 121 Switches to a custom stack to bypass stack traces 44->121 51 explorer.exe 44->51         started        55 explorer.exe 44->55         started        57 cmd.exe 44->57         started        process12 dnsIp13 77 a-0003.a-msedge.net 204.79.197.203, 443, 60961, 60964 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 51->77 101 Query firmware table information (likely to detect VMs) 51->101 59 WerFault.exe 51->59         started        61 WerFault.exe 55->61         started        63 conhost.exe 57->63         started        signatures14 process15
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-02-24 00:17:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:my18 discovery execution rat spyware stealer trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
1a0c0bf6760f3967f8c77ba920c041e3a653821c70759e2913652219ad557520
MD5 hash:
14df2af56c6355892040137238cde8c7
SHA1 hash:
6b35a4c0c492123debd3c325feb4483f48ccd25c
SH256 hash:
e80a463e16b14b43e4112cb8f0cb0cf44ff245be592202042373a02b9ea4deb9
MD5 hash:
bbea1aafd0d7058f6f46c8ceff355f96
SHA1 hash:
14ca07073c0a943129823d6532358a55761a203f
SH256 hash:
20dcb3126c49c97b411de70b48f1bd7b92c5f76f063db717f27a3b506cee57fb
MD5 hash:
bbc23d0caadf318ec4d81a2069ed6490
SHA1 hash:
bdb68ba967eda6643ced73dfc21706401b04f8eb
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
014af1eeb386d2d55905a3a9e582d070fb7fb04fd6167dfdcf5fe40ef4628035
MD5 hash:
fab7758d7c5b6317d1559d5c06aba0e0
SHA1 hash:
039e53c637bc55803e95e5cb8782120b61f93f0c
Detections:
win_formbook_w0 win_formbook_g0 win_formbook_auto FormBook Windows_Trojan_Formbook Formbook
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 1a0c0bf6760f3967f8c77ba920c041e3a653821c70759e2913652219ad557520

(this sample)

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 (GUARD_CF)high

Comments