MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71a645f62d75e1108a47968a53fb0a9dc807bce7ac17e59c047ff05143c7eace. 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 1 File information Comments

SHA256 hash: 71a645f62d75e1108a47968a53fb0a9dc807bce7ac17e59c047ff05143c7eace
SHA3-384 hash: 98b9cd461cc677f68fb7067c22258d17c4685188a95e426ae2076f98fb9736b2e67121ef3f9bc3d5cf2b442b3498c64f
SHA1 hash: a2b877a9c5bb17daf90e926e6f318ec5f3688ae0
MD5 hash: 12c369c11d54a064a064187dbf4e1c67
humanhash: sodium-video-green-lion
File name:file
Download: download sample
Signature Formbook
File size:309'043 bytes
First seen:2023-05-19 19:16:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:oYa6L93Bjo2e0QeVe1seNxSGvjCUlsz0HccPkhoVMKAA4D1R2:oYm0MFNhLCUlswtkhoGQ4Dn2
Threatray 2'907 similar samples on MalwareBazaar
TLSH T1616402C0D5D8A8EBD41306B11DB7AE1E489BEC175478492B772A7920FAB3193641FF0B
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 83a9ac8e96e381a5 (6 x Formbook, 4 x AveMariaRAT)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
252
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Suspicious activity
Analysis date:
2023-05-19 19:19:18 UTC
Tags:
n/a

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Сreating synchronization primitives
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin 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:
NSISDropper, FormBook
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Signature
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Nemesis
Status:
Malicious
First seen:
2023-05-19 18:55:46 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
71a645f62d75e1108a47968a53fb0a9dc807bce7ac17e59c047ff05143c7eace
MD5 hash:
12c369c11d54a064a064187dbf4e1c67
SHA1 hash:
a2b877a9c5bb17daf90e926e6f318ec5f3688ae0
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:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


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

Web download

Formbook

Executable exe 71a645f62d75e1108a47968a53fb0a9dc807bce7ac17e59c047ff05143c7eace

(this sample)

  
Delivery method
Distributed via web download

Comments