MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf. 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: 17


Intelligence 17 IOCs YARA 21 File information Comments
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SHA256 hash: 896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf
SHA3-384 hash: 8d8556b08e5cf579b340edf3c1c14770c89fec00399a9362221e8892b9229acb6ca2e9ced1075038c49372f65d13728e
SHA1 hash: 1a0a747e267376860c3e2e764188cd6ff7895a86
MD5 hash: 88bc69b054558e4f2dc95106a1c3e3a8
humanhash: arizona-table-kitten-minnesota
File name:VZXBSD.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:229'376 bytes
First seen:2025-04-22 11:39:09 UTC
Last seen:2025-05-09 13:30:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'656 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:/OTn2z/v8iDhDqiAS8rNsZ8WqZ7Kz7EdPVeeQ3uXYKsjUCLJ:4O9qiASQBZ7KXEdPVTQeYKsjUCLJ
Threatray 4'919 similar samples on MalwareBazaar
TLSH T18124D09C7660B2DFC85BC472DEA82CA8EB10747A832B9207D45356ADDE4C887CF554F2
TrID 28.5% (.EXE) Win64 Executable (generic) (10522/11/4)
17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.2% (.EXE) Win32 Executable (generic) (4504/4/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter cocaman
Tags:exe FormBook RFQ

Intelligence

File Origin
# of uploads :
5
# of downloads :
509
Origin country :
CH CH
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/3409/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.12945.232.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68078045209c4a5e907ab5c2
Tags:
packed virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Launching cmd.exe command interpreter
Сreating synchronization primitives
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuser confuserex entropy obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68077febe9c1e257979f78d4/reports/68ee1c01-e2de-4e6b-880f-2fd45355c006/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b80e9a8-5491-4d41-a17d-ed71791922fe
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1671006
Signature
.NET source code references suspicious native API functions
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
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1671006 Sample: VZXBSD.exe Startdate: 22/04/2025 Architecture: WINDOWS Score: 100 32 www.9ydygorig3l7z.xyz 2->32 34 www.xectgroup.net 2->34 36 9 other IPs or domains 2->36 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 48 8 other signatures 2->48 11 VZXBSD.exe 1 2->11         started        signatures3 46 Performs DNS queries to domains with low reputation 32->46 process4 file5 30 C:\Users\user\AppData\...\VZXBSD.exe.log, ASCII 11->30 dropped 58 Writes to foreign memory regions 11->58 60 Allocates memory in foreign processes 11->60 62 Injects a PE file into a foreign processes 11->62 15 aspnet_compiler.exe 11->15         started        signatures6 process7 signatures8 64 Modifies the context of a thread in another process (thread injection) 15->64 66 Maps a DLL or memory area into another process 15->66 68 Sample uses process hollowing technique 15->68 70 4 other signatures 15->70 18 explorer.exe 87 7 15->18 injected process9 dnsIp10 38 204.79.197.203, 443 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->38 21 cmd.exe 18->21         started        24 autofmt.exe 18->24         started        process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 56 Switches to a custom stack to bypass stack traces 21->56 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-04-22 06:27:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rfw2z64bd7g6qc4xxnexvjnlylodxtpnv2gapekrfmqiv2tlmw7q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
439578a2a659ff6245814e2e4306dca997a267a175f95bd8501ccfdc4bca3e3b
Formbook
59c68aa4d3b5e77347aa69a31f2592220359ff8f45c18bf9ef5ad047e072534d
Formbook
5cc4e78268ea872c52ba12d08a527a7da6a0abd65d7b1aaabc2d56ae4edbdef6
Formbook
6036a28c74493ce0e6d87a468959a047011d2e6cf63807d9a3d154b8642d7e65
Formbook
6d0a73c255453a2539a63dbeae565abae36b527cd6154691b3c066f3815860ed
Formbook
+ 4'909 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hi13 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250422-nsf3faxrt3/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4d4a2e13-4495-4d3a-8eb4-8f3d8d350ce9
Unpacked files
SH256 hash:
896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf
MD5 hash:
88bc69b054558e4f2dc95106a1c3e3a8
SHA1 hash:
1a0a747e267376860c3e2e764188cd6ff7895a86
Link:
https://www.unpac.me/results/a9360fe1-0602-4efc-97fb-4e1db9f0c2f5/
SH256 hash:
29865b1ee39675e9e17170f5ca57bfc047eec1dcbd4a285a9f197946d46c8352
MD5 hash:
41978e29eba665a413eb1d651afa5cc9
SHA1 hash:
73ce342e3fd8de3a5a9f82032ff06b73ee97765f
Link:
https://www.unpac.me/results/a9360fe1-0602-4efc-97fb-4e1db9f0c2f5/
SH256 hash:
0eafb37e28564c1ef441905aa76f0ddea8a20a727b3e798e4b8429311f9c317b
MD5 hash:
15d173a3d5c687778a2e336459338eb9
SHA1 hash:
d2866a7924e2ae683aa5637f86cef3ae9d8928f0
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Link:
https://www.unpac.me/results/a9360fe1-0602-4efc-97fb-4e1db9f0c2f5/
SH256 hash:
f7b2a1307788383e625f5e97e8b6493d83d3d5dc92e6668b4021089c31f95b60
MD5 hash:
01dee027b928c11106c8eedee12872e5
SHA1 hash:
9688743d5cb6c7d6bf8bc89b32c8336f3f12293d
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/a9360fe1-0602-4efc-97fb-4e1db9f0c2f5/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/896dacfb811f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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

rar 89b397780f524d548d09d5a8b86a0506f45282dac4faecff735c4d4d8a8828ec

Formbook

Executable exe 896dacfb811fcde80b97bb497aa5abc2dc3bcdedae8c0791512b208aea6b65bf

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 89b397780f524d548d09d5a8b86a0506f45282dac4faecff735c4d4d8a8828ec
Cape
Cape
https://www.capesandbox.com/analysis/3409/
  
Dropped by
MD5 67365fdfbd1e4977b928edc6f5683ca4

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