MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b66f2c624df063159e9134b0369556142a3ad98b14fed1a6d9217ecd55fb3b6f. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b66f2c624df063159e9134b0369556142a3ad98b14fed1a6d9217ecd55fb3b6f
SHA3-384 hash: eec0be8c36fd521e3a5c0c47509bbb0212376b9e88c2af8d0178739325bcb49fd5bb98a4c6c0f284bfef6d2e309f9ecb
SHA1 hash: d95c6d8b92c63b6ebf99232c72668af4040f19ce
MD5 hash: 7c56ea915dd0fcf77f6ec4ff3cc407c9
humanhash: helium-jig-three-pluto
File name:z32Bngfnfvocbtszr.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:708'608 bytes
First seen:2023-05-18 11:43:36 UTC
Last seen:2023-05-23 13:37:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0492baad86ffd2650cccc3b91000a598 (2 x Formbook)
ssdeep 12288:kwU+YPHr4rE/NZYAVM6Gw3F7NeiugicyPjDjPVRnRv1qb:klB/YNpw17NNugihDDPRNqb
Threatray 2'848 similar samples on MalwareBazaar
TLSH T1DBE48DF6B6D18033C1222037C81A9E6B65697FA129A57246FFF83D488F3D2C5782D356
TrID 84.1% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
4.5% (.EXE) Win32 Executable Delphi generic (14182/79/4)
4.1% (.SCR) Windows screen saver (13097/50/3)
2.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.4% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e4e08484a486a0a4 (2 x Formbook, 1 x ModiLoader, 1 x RemcosRAT)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
5
# of downloads :
249
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z32Bngfnfvocbtszr.exe
Verdict:
Malicious activity
Analysis date:
2023-05-18 11:44:56 UTC
Tags:
dbatloader
Link:
https://app.any.run/tasks/1900c077-e2ec-4b4c-b3d9-7bc62b56f88d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.6127.14398.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Launching a process
Reading critical registry keys
Searching for synchronization primitives
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/85032/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware keylogger overlay packed
Link:
https://www.filescan.io/uploads/64660f82edde098fd9fbafdc/reports/4f989a8a-0708-48ea-93b5-4ea33b10469a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b66f2c624df063159e9134b0369556142a3ad98b14fed1a6d9217ecd55fb3b6f
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4ad87f60-3ffc-4ae8-b52e-c5a3544f3c20
Result
Threat name:
DBatLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1235897
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Found malware configuration
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 868892 Sample: z32Bngfnfvocbtszr.exe Startdate: 18/05/2023 Architecture: WINDOWS Score: 100 64 Multi AV Scanner detection for domain / URL 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 5 other signatures 2->70 9 z32Bngfnfvocbtszr.exe 1 3 2->9         started        process3 dnsIp4 58 192.168.2.1 unknown unknown 9->58 60 web.fe.1drv.com 9->60 62 3 other IPs or domains 9->62 36 C:\Users\Public\Libraries\Bngfnfvo.exe, PE32 9->36 dropped 38 C:\Users\...\Bngfnfvo.exe:Zone.Identifier, ASCII 9->38 dropped 92 Writes to foreign memory regions 9->92 94 Allocates memory in foreign processes 9->94 96 Creates a thread in another existing process (thread injection) 9->96 98 Injects a PE file into a foreign processes 9->98 14 colorcpl.exe 9->14         started        file5 signatures6 process7 signatures8 100 Modifies the context of a thread in another process (thread injection) 14->100 102 Maps a DLL or memory area into another process 14->102 104 Sample uses process hollowing technique 14->104 106 Queues an APC in another process (thread injection) 14->106 17 explorer.exe 9 4 14->17 injected process9 dnsIp10 40 24worldmarket.com 92.204.213.186, 49717, 49718, 49719 VELIANET-ASvelianetInternetdiensteGmbHDE Germany 17->40 42 govcintria.online 84.32.84.32, 49713, 49714, 49715 NTT-LT-ASLT Lithuania 17->42 44 7 other IPs or domains 17->44 72 System process connects to network (likely due to code injection or exploit) 17->72 21 Bngfnfvo.exe 17->21         started        25 Bngfnfvo.exe 17->25         started        27 raserver.exe 13 17->27         started        29 msdt.exe 17->29         started        signatures11 process12 dnsIp13 46 web.fe.1drv.com 21->46 48 ph-files.fe.1drv.com 21->48 54 2 other IPs or domains 21->54 74 Multi AV Scanner detection for dropped file 21->74 76 Writes to foreign memory regions 21->76 78 Allocates memory in foreign processes 21->78 31 colorcpl.exe 21->31         started        50 web.fe.1drv.com 25->50 52 ph-files.fe.1drv.com 25->52 56 2 other IPs or domains 25->56 80 Creates a thread in another existing process (thread injection) 25->80 82 Injects a PE file into a foreign processes 25->82 34 colorcpl.exe 25->34         started        84 Tries to steal Mail credentials (via file / registry access) 27->84 86 Tries to harvest and steal browser information (history, passwords, etc) 27->86 88 Modifies the context of a thread in another process (thread injection) 27->88 90 Maps a DLL or memory area into another process 27->90 signatures14 process15 signatures16 108 Modifies the context of a thread in another process (thread injection) 31->108 110 Maps a DLL or memory area into another process 31->110 112 Sample uses process hollowing technique 31->112
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b66f2c624df063159e9134b0369556142a3ad98b14fed1a6d9217ecd55fb3b6f/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-05-18 06:15:33 UTC
File Type:
PE (Exe)
Extracted files:
31
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzxsyysn6brrlhurgsydnfkwcqvdvwmlct7ndjwzef7m2vp3hnxq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
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Formbook
03daa8dcea75f814b344785dc1f52222cd4461bccc17a35f032efe81e47d18be
Formbook
14afee34b6a36a32b34c61556e46fef92e6a2d9066c758308bb9caea4a94ae2a
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16dbc44d14a74defb998a30220b5401ab840e1590e895a3ed5b2cb96b4c3a3c3
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229acb9011d2cf600c9112b5f7d19cba56d9bf5ecc20880a6c760e10f685b244
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7a91a1cbaa20e78c0e6814b51ed7d239074c95dd348159817e16606a6a04f344
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99c56c4551be01e229f63d5159d90f28c0b3fc18e7beae133aeea99a07f7feeb
Formbook
bf7d050627a7bf67ad74bed6cf159d30c88423a1c0ef53f9fdc80b6977e79d9e
Formbook
+ 2'838 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader persistence spyware stealer trojan
Link:
https://tria.ge/reports/230518-nv5tksaf39/
Behaviour
Modifies Internet Explorer settings
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
ModiLoader Second Stage
ModiLoader, DBatLoader
Unpacked files
SH256 hash:
b66f2c624df063159e9134b0369556142a3ad98b14fed1a6d9217ecd55fb3b6f
MD5 hash:
7c56ea915dd0fcf77f6ec4ff3cc407c9
SHA1 hash:
d95c6d8b92c63b6ebf99232c72668af4040f19ce
Detections:
DbatLoaderStage1
Create hunting rule
win_dbatloader_g1
Create hunting rule
Link:
https://www.unpac.me/results/0e7897b6-55c1-4497-9943-bd9c54fdb78e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b66f2c624df0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
Link:
https://yomi.yoroi.company/submissions/b66f2c624df063159e9134b0369556142a3ad98b14fed1a6d9217ecd55fb3b6f

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:CMD_Ping_Localhost
Create hunting rule
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

Executable exe b66f2c624df063159e9134b0369556142a3ad98b14fed1a6d9217ecd55fb3b6f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments