MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 580e90650f19c14aedf7922ba6305412fd2c041144591d22456a753885aafcda. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments

SHA256 hash: 580e90650f19c14aedf7922ba6305412fd2c041144591d22456a753885aafcda
SHA3-384 hash: 452c2f7fdbb34235fadbb9b09750599cbef565af9b4e307ff1c5a5a8c8f26fbe7525ec424d05c8c0bf49aaf5a27c1f6c
SHA1 hash: 8e94de6cbcd2e8c83748e725008d7aa582530680
MD5 hash: d435e40e23adb026097ced4361aed483
humanhash: emma-kitten-undress-johnny
File name:PO-2200230_pdf.exe
Download: download sample
Signature Formbook
File size:453'373 bytes
First seen:2023-02-02 08:55:13 UTC
Last seen:2023-02-06 07:14:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:wYa6bDdD9PpjOovpV6XCx9XzEZazURQZbQ+AyTjsXB0RvXWKXVuLsk1ACVZrVpr9:wY1R9wEdZU+AqRvGKX8/LVprsNJGH
TLSH T10DA4DF416B84AFD9D6E239F78933636ED1AB9D4E9031F1839B907BD4EA37040C853167
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 216ded0e335b6c74 (2 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
202
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO-2200230_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-02-02 08:56:09 UTC
Tags:
trojan formbook stealer

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

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Query of malicious DNS domain
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed 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:
troj.spyw.evad
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)
Initial sample is a PE file and has a suspicious name
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
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)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 796828 Sample: PO-2200230_pdf.exe Startdate: 02/02/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 3 other signatures 2->39 9 PO-2200230_pdf.exe 19 2->9         started        process3 file4 25 C:\Users\user\AppData\Local\...\brnflto.exe, PE32 9->25 dropped 12 brnflto.exe 9->12         started        process5 signatures6 51 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->51 53 Maps a DLL or memory area into another process 12->53 15 brnflto.exe 12->15         started        process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 2 6 15->18 injected process9 dnsIp10 27 www.wanknumbers.co.uk 81.17.29.146, 49727, 49729, 49730 PLI-ASCH Switzerland 18->27 29 www.againstthealgorith.com 81.17.29.150, 49738, 49740, 49741 PLI-ASCH Switzerland 18->29 31 12 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 22 cscript.exe 13 18->22         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 22->43 45 Tries to harvest and steal browser information (history, passwords, etc) 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-02-02 01:03:37 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Behaviour
Enumerates system info in registry
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Unpacked files
SH256 hash:
cf2604502549b33bb1398232007359300ac453b6bb179d97073c06a1a7b79e1d
MD5 hash:
72101d9e21398ba0eeeaf26316ccc7ec
SHA1 hash:
77ff40388687659b422ee0ba1ad1362c86327147
SH256 hash:
580e90650f19c14aedf7922ba6305412fd2c041144591d22456a753885aafcda
MD5 hash:
d435e40e23adb026097ced4361aed483
SHA1 hash:
8e94de6cbcd2e8c83748e725008d7aa582530680
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:azov_Dropped
Author:Potatech
Description:Azov Detection
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 580e90650f19c14aedf7922ba6305412fd2c041144591d22456a753885aafcda

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments