MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9829382c100af443239c2823f7db79049221f5d1ccffe06620b8cd3ed1fcaf07. 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: 12


Intelligence 12 IOCs YARA 17 File information Comments

SHA256 hash: 9829382c100af443239c2823f7db79049221f5d1ccffe06620b8cd3ed1fcaf07
SHA3-384 hash: e416e92c80da7fc07c00f10ac609c30d3a3606514f45336ffe1d34810a278c513e53858d168377e14ac1446f26f43262
SHA1 hash: 384ec9e60b0e5986916c7959b6c2768caacdd8ab
MD5 hash: bb95b1b72e99ac62a40b9604ba2454f5
humanhash: arizona-uncle-carpet-video
File name:INVOICE-20073544-2023.exe
Download: download sample
Signature Formbook
File size:391'546 bytes
First seen:2023-10-30 14:21:37 UTC
Last seen:2023-10-30 16:50:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:F8LxBsMwrRR9Zn0G0W0Hxal0bexezLJB8BIMkFVVqCh3LkeCxrxSZ4YoyJX:/LRlKyUqev8WBhhk1xWmmX
Threatray 24 similar samples on MalwareBazaar
TLSH T11484234A91D1D867F5E6C7B1CDB6E338FABDD40881A7794BD7800C6A594234B880E71F
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:exe FormBook INVOICE

Intelligence


File Origin
# of uploads :
2
# of downloads :
333
Origin country :
CH CH
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed shell32
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, NSISDropper
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
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
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample has a suspicious name (potential lure to open the executable)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses powercfg.exe to modify the power settings
Writes to foreign memory regions
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1334306 Sample: INVOICE-20073544-2023.exe Startdate: 30/10/2023 Architecture: WINDOWS Score: 100 32 www.wshein.online 2->32 34 www.tecverse.xyz 2->34 36 15 other IPs or domains 2->36 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 7 other signatures 2->52 11 INVOICE-20073544-2023.exe 17 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\rzioicdg.exe, PE32 11->30 dropped 14 rzioicdg.exe 11->14         started        process6 signatures7 62 Detected unpacking (changes PE section rights) 14->62 64 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->64 66 Maps a DLL or memory area into another process 14->66 17 rzioicdg.exe 14->17         started        process8 signatures9 44 Maps a DLL or memory area into another process 17->44 20 euvHgpTPTOURIOahcnmCEQShAoOd.exe 17->20 injected process10 process11 22 powercfg.exe 13 20->22         started        signatures12 54 Tries to steal Mail credentials (via file / registry access) 22->54 56 Tries to harvest and steal browser information (history, passwords, etc) 22->56 58 Writes to foreign memory regions 22->58 60 3 other signatures 22->60 25 euvHgpTPTOURIOahcnmCEQShAoOd.exe 22->25 injected 28 firefox.exe 22->28         started        process13 dnsIp14 38 www.tecverse.xyz 203.161.61.170, 49736, 49737, 49738 VNPT-AS-VNVNPTCorpVN Malaysia 25->38 40 www.bukculture.com 91.206.200.88, 49723, 49724, 49726 UKRAINE-ASUA Ukraine 25->40 42 10 other IPs or domains 25->42
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-10-30 14:04:27 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
9829382c100af443239c2823f7db79049221f5d1ccffe06620b8cd3ed1fcaf07
MD5 hash:
bb95b1b72e99ac62a40b9604ba2454f5
SHA1 hash:
384ec9e60b0e5986916c7959b6c2768caacdd8ab
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:meth_stackstrings
Author:Willi Ballenthin
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: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 9829382c100af443239c2823f7db79049221f5d1ccffe06620b8cd3ed1fcaf07

(this sample)

Comments