MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6be7871b1acc611b7703d1c0441e1cefb0024a5cde20bbcf9406fd8296e3b690. 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: 11


Intelligence 11 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6be7871b1acc611b7703d1c0441e1cefb0024a5cde20bbcf9406fd8296e3b690
SHA3-384 hash: b09865163c3bb5750451986d286c7b4b8caf70c644522efcdb06f61316835f2caf3dd0cf100011b9e415185271ab7de7
SHA1 hash: 5c395ac0840c2abba7e18afa1080b22a8bfc5d12
MD5 hash: 174800448060da1f551c0e234d0337f6
humanhash: romeo-social-cup-sad
File name:nonono.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'569'792 bytes
First seen:2022-10-10 05:46:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:bOi2Q9NXw2/wPOjdGxYqfw+Jwz/S/6RZs8nVW6k5JHkARt7DBAqnN:bZTq24GjdGSgw+W7SCRnVQTEQ/BA8
TLSH T1B1751294B3E90E04F3BF6FB8ECF110549A71F8179816D64E2889205D0F35B4AAD61B7B
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter 0xToxin
Tags:exe FormBook liteshare Stealerium


Avatar
0xToxin
https://bazaar.abuse.ch/sample/373834225a126abde8256049e073b8e07bd06c7563f929783f441a1a63a88d1b/

Intelligence

File Origin
# of uploads :
1
# of downloads :
243
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/318133/
Detection(s):
Win.Packed.Msilmamut-9957171-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Creating a file in the %temp% directory
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file
Running batch commands
Creating a window
Launching a process
Launching the process to change network settings
Searching for synchronization primitives
Stealing user critical data
Query of malicious DNS domain
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm cmd.exe hacktool packed stealer
Link:
https://www.filescan.io/uploads/6343b1d9979fe5ad3328aa83/reports/ade40253-5f70-4f5d-9c1e-e96fe594a8eb/overview
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.
Malware family:
Stealerium Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/991dfc0a-4115-4f6e-aad6-60c6f51baf59
Result
Threat name:
Stealerium
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1086686
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Stealerium
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 719243 Sample: nonono.exe Startdate: 10/10/2022 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Sigma detected: Capture Wi-Fi password 2->47 49 9 other signatures 2->49 7 nonono.exe 15 126 2->7         started        11 msiexec.exe 2->11         started        process3 dnsIp4 37 ip-api.com 208.95.112.1, 49700, 80 TUT-ASUS United States 7->37 39 icanhazip.com 104.18.114.97, 49702, 80 CLOUDFLARENETUS United States 7->39 41 2 other IPs or domains 7->41 51 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->51 53 May check the online IP address of the machine 7->53 55 Tries to steal Mail credentials (via file / registry access) 7->55 57 3 other signatures 7->57 13 cmd.exe 1 7->13         started        16 WerFault.exe 23 9 7->16         started        19 cmd.exe 1 7->19         started        signatures5 process6 file7 59 Uses netsh to modify the Windows network and firewall settings 13->59 61 Tries to harvest and steal WLAN passwords 13->61 21 netsh.exe 3 13->21         started        23 conhost.exe 13->23         started        25 findstr.exe 1 13->25         started        27 chcp.com 1 13->27         started        35 C:\ProgramData\Microsoft\...\Report.wer, Unicode 16->35 dropped 29 netsh.exe 3 19->29         started        31 conhost.exe 19->31         started        33 chcp.com 1 19->33         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6be7871b1acc611b7703d1c0441e1cefb0024a5cde20bbcf9406fd8296e3b690/
Threat name:
ByteCode-MSIL.Infostealer.Stealgen
Create hunting rule
Status:
Malicious
First seen:
2022-10-10 05:27:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nptyogy2zrqrw5yd2haeihq456yaess43yqlxt4ua36yffxdw2ia._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection spyware stealer
Link:
https://tria.ge/reports/221010-ggv9naahfr/
Behaviour
Checks processor information in registry
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Looks up geolocation information via web service
Reads user/profile data of web browsers
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ca7ec8fc-0125-4095-b564-cf29c57efa12
Unpacked files
SH256 hash:
6be7871b1acc611b7703d1c0441e1cefb0024a5cde20bbcf9406fd8296e3b690
MD5 hash:
174800448060da1f551c0e234d0337f6
SHA1 hash:
5c395ac0840c2abba7e18afa1080b22a8bfc5d12
Link:
https://www.unpac.me/results/b175a982-de63-499c-999f-f815d8b2a8bf/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6be7871b1acc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6be7871b1acc611b7703d1c0441e1cefb0024a5cde20bbcf9406fd8296e3b690

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:grakate_stealer_nov_2021
Create hunting rule
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:INDICATOR_SUSPICIOUS_EXE_CC_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_Discord_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Discord tokens regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_VPN
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many VPN software clients. Observed in infosteslers
Rule name:INDICATOR_SUSPICIOUS_EXE_WirelessNetReccon
Create hunting rule
Author:ditekSHen
Description:Detects executables with interest in wireless interface using netsh
Rule name:MALWARE_Win_UnamedStealer
Create hunting rule
Author:ditekSHen
Description:Detects unknown infostealer. Observed as 2nd stage and injects into .NET AppLaunch.exe
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/318133/

Comments