MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e22cc7329a3ee317a838f8420bddbee282bf9667ff74ffc2fa446468639f5349. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: e22cc7329a3ee317a838f8420bddbee282bf9667ff74ffc2fa446468639f5349
SHA3-384 hash: 44cd5f13356cf8c5bf494b0abb4a05b689ec909fc021bcb3970b96cdcee1e15fb49426eb277baf066b849605ef841c30
SHA1 hash: c5f5d1f86d89247122bd5de236e82e91e3659622
MD5 hash: 9309e15e454cc9543c99a56c28d4027f
humanhash: johnny-nuts-lion-glucose
File name:Overdue invoices_xlsx.exe
Download: download sample
Signature Formbook
File size:311'906 bytes
First seen:2022-05-25 05:35:57 UTC
Last seen:2022-05-25 06:36:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 55f3dfd13c0557d3e32bcbc604441dd3 (124 x Formbook, 18 x Loki, 13 x AgentTesla)
ssdeep 6144:s0YndBvAQ4wJ6+FjHCeuhgiIbsce2qmYLih2Hnx:k7AQ4Q6urfuh7IwBKYR
Threatray 15'916 similar samples on MalwareBazaar
TLSH T1AA64024507D2487BD45E3F302975AE3DF6387F2CDC16A60273103EA97539B5EA8C9292
TrID 92.9% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 015c3eae8ede1c21 (15 x Formbook, 1 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
282
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Overdue invoices_xlsx.exe
Verdict:
Malicious activity
Analysis date:
2022-05-25 05:50:00 UTC
Tags:
installer formbook trojan 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
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe 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.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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 detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 633770 Sample: Overdue invoices_xlsx.exe Startdate: 25/05/2022 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 7 other signatures 2->51 11 Overdue invoices_xlsx.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\Temp\dvwzjt.exe, PE32 11->31 dropped 14 dvwzjt.exe 11->14         started        process5 signatures6 61 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->61 63 Tries to detect virtualization through RDTSC time measurements 14->63 65 Injects a PE file into a foreign processes 14->65 17 dvwzjt.exe 14->17         started        process7 signatures8 37 Modifies the context of a thread in another process (thread injection) 17->37 39 Maps a DLL or memory area into another process 17->39 41 Sample uses process hollowing technique 17->41 43 Queues an APC in another process (thread injection) 17->43 20 explorer.exe 17->20 injected process9 dnsIp10 33 www.updatemanagementcenter.com 198.54.117.244, 49754, 80 NAMECHEAP-NETUS United States 20->33 35 www.gaypornoi.com 188.114.96.10, 49760, 80 CLOUDFLARENETUS European Union 20->35 53 System process connects to network (likely due to code injection or exploit) 20->53 24 wlanext.exe 20->24         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 24->55 57 Maps a DLL or memory area into another process 24->57 59 Tries to detect virtualization through RDTSC time measurements 24->59 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2022-05-25 00:15:05 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
70207fd1ce4c360d71737b9c3aee4b63cce31a4d527a650b8562682661598c51
MD5 hash:
2cb9de5f2fe0d7720c2d99f07a1d8235
SHA1 hash:
961d80c139844fb7055d78e52521769a49bb2aa6
SH256 hash:
e22cc7329a3ee317a838f8420bddbee282bf9667ff74ffc2fa446468639f5349
MD5 hash:
9309e15e454cc9543c99a56c28d4027f
SHA1 hash:
c5f5d1f86d89247122bd5de236e82e91e3659622
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:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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 e22cc7329a3ee317a838f8420bddbee282bf9667ff74ffc2fa446468639f5349

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments