MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3b9ce5bdb8e99a149c06df8f09c2809a42b6ad7b251356fd6f4c42cf8214c7a. 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 File information Comments

SHA256 hash: b3b9ce5bdb8e99a149c06df8f09c2809a42b6ad7b251356fd6f4c42cf8214c7a
SHA3-384 hash: dac50ba4c2f505df165760b2003a0c427af50b4c16e763b23cf9aff9c6245a80b60ccb9ddd6d99ad776409fbfba55089
SHA1 hash: 01a9b6c49789cb7f862d6b1b8b1fd41757ba1314
MD5 hash: 736944b735f67fcd564149bf82ff4127
humanhash: west-fruit-minnesota-charlie
File name:Balance Invoice.exe
Download: download sample
Signature Formbook
File size:500'318 bytes
First seen:2023-10-23 11:32:28 UTC
Last seen:2023-10-24 10:30:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (96 x GuLoader, 53 x Formbook, 37 x VIPKeylogger)
ssdeep 12288:zfLCv9EZ2isRiYGcW4AQYnpnn72PjRqxZ9BKCZm+IJm2+ZZO:zfLCeZ2is/kPVpnn7eiXZmwZQ
TLSH T17AB42262F7A0C9A6C0A2BEF21E391D632AE15D545E48A65217407FAE31F21C3583ED4B
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 cccc8c94f4d8e8b4 (2 x Formbook)
Reporter TeamDreier
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
306
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Balance Invoice.exe
Verdict:
Malicious activity
Analysis date:
2023-10-23 11:37:48 UTC
Tags:
formbook xloader stealer spyware

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 window
Creating a file in the %temp% directory
Creating a process from a recently created file
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed shell32
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, NSISDropper
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Detected unpacking (changes PE section rights)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Uses netstat to query active network connections and open ports
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2023-10-22 23:02:37 UTC
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Blocklisted process makes network request
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
b3b9ce5bdb8e99a149c06df8f09c2809a42b6ad7b251356fd6f4c42cf8214c7a
MD5 hash:
736944b735f67fcd564149bf82ff4127
SHA1 hash:
01a9b6c49789cb7f862d6b1b8b1fd41757ba1314
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

Formbook

Executable exe b3b9ce5bdb8e99a149c06df8f09c2809a42b6ad7b251356fd6f4c42cf8214c7a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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