MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 428aee241022499cbd49907635162f116e24792b117490949fa3527dc130b90f. 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 6 File information Comments

SHA256 hash: 428aee241022499cbd49907635162f116e24792b117490949fa3527dc130b90f
SHA3-384 hash: c994c2c17bf50509682bf9735af134fb1af57dfc1ff1bfc69a365b60d840a46d33b201f416defa20b938ac7671445239
SHA1 hash: dd5dfa51de889e30ee6de627e3b94c11c79d3760
MD5 hash: a60e86a939aadc05535fc256edc5163c
humanhash: uncle-avocado-lima-glucose
File name:6014853.exe
Download: download sample
Signature Formbook
File size:640'778 bytes
First seen:2023-02-01 13:45:20 UTC
Last seen:2023-02-01 13:45:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:DYeaKLMI/z1JwyY7EoYZ5+s7rfP2INg7KyynVcua:DYeHrhGyY7Edmgb2J7KHVcua
TLSH T169D423B66FB1F063DEF212338D3E949664EE6E111546CB5F23200868F6F8991CA1D6D3
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 lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
186
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6014853.exe
Verdict:
Malicious activity
Analysis date:
2023-02-01 13:45:47 UTC
Tags:
autoit

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Sending a custom TCP request
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nymeria shell32.dll
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
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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)
Uses netsh to modify the Windows network and firewall settings
Uses netstat to query active network connections and open ports
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 795986 Sample: 6014853.exe Startdate: 01/02/2023 Architecture: WINDOWS Score: 100 41 www.five-stars.xyz 2->41 43 www.soroptimistofamador.com 2->43 45 26 other IPs or domains 2->45 61 Snort IDS alert for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus detection for URL or domain 2->65 69 4 other signatures 2->69 12 6014853.exe 20 2->12         started        signatures3 67 Performs DNS queries to domains with low reputation 41->67 process4 file5 39 C:\Users\user\AppData\Local\...\xyhoznl.exe, PE32 12->39 dropped 87 Uses netsh to modify the Windows network and firewall settings 12->87 16 xyhoznl.exe 12->16         started        19 autochk.exe 12->19         started        21 netsh.exe 12->21         started        signatures6 process7 signatures8 53 Machine Learning detection for dropped file 16->53 55 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 16->55 57 Maps a DLL or memory area into another process 16->57 23 xyhoznl.exe 16->23         started        process9 signatures10 71 Modifies the context of a thread in another process (thread injection) 23->71 73 Maps a DLL or memory area into another process 23->73 75 Sample uses process hollowing technique 23->75 77 Queues an APC in another process (thread injection) 23->77 26 RAVCpl64.exe 23->26 injected process11 process12 28 NETSTAT.EXE 13 26->28         started        signatures13 79 Tries to steal Mail credentials (via file / registry access) 28->79 81 Tries to harvest and steal browser information (history, passwords, etc) 28->81 83 Writes to foreign memory regions 28->83 85 3 other signatures 28->85 31 explorer.exe 4 4 28->31 injected 35 firefox.exe 28->35         started        process14 dnsIp15 47 soroptimistofamador.com 162.241.230.71, 49900, 49901, 49902 UNIFIEDLAYER-AS-1US United States 31->47 49 tz.qp077vip-cdn.vip 23.248.163.68, 49924, 49925, 49926 UHGL-AS-APUCloudHKHoldingsGroupLimitedHK United States 31->49 51 15 other IPs or domains 31->51 59 System process connects to network (likely due to code injection or exploit) 31->59 37 WerFault.exe 4 35->37         started        signatures16 process17
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2023-02-01 13:46:09 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
16 of 26 (61.54%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  8/10
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
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
1d0e61e3f113920845ee823a91fddad2e37c3053b9c8f9767d7fe5df31fa329d
MD5 hash:
a224edcc925f354666447250ef040b5c
SHA1 hash:
8c700a52bec5e7cf1e9f44f34a2ee9df7997ed52
Detections:
win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
bfd905897f0b63697091a9fa40d2a4c9b54b4052e02d3d473654d039803eae37
MD5 hash:
e0b5bb5129ad64d7bd988bac56ac0113
SHA1 hash:
9e3ef2a1828d552d8b692e6fc58a04d66f453fe2
SH256 hash:
e439f02b72a882498d512689f380e1323c4d8342578fe8608e81061cf4a8aee1
MD5 hash:
3d90ab79b9719aded136b7cd437ebb21
SHA1 hash:
dbec6e868a293cb0bd58d35191b1423ab8942384
SH256 hash:
428aee241022499cbd49907635162f116e24792b117490949fa3527dc130b90f
MD5 hash:
a60e86a939aadc05535fc256edc5163c
SHA1 hash:
dd5dfa51de889e30ee6de627e3b94c11c79d3760
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:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
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_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Malspam

Formbook

Executable exe 428aee241022499cbd49907635162f116e24792b117490949fa3527dc130b90f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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