MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a88e5d5fb17e50a25cf6dfe2512fc45cc3f712dccccee2d08ee7d1dac7086e5e. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash: a88e5d5fb17e50a25cf6dfe2512fc45cc3f712dccccee2d08ee7d1dac7086e5e
SHA3-384 hash: 78a4210ffdb53551b5c24da8853dca3aed0f4a5da5735814cd502d75651105d19bca03e9834186c718c0d757d6ade774
SHA1 hash: a5b36cf34d9ab4aca8b07a723848dd1dfcc755a4
MD5 hash: 3e336e588f8433c914b415a282d14b0b
humanhash: bluebird-kilo-skylark-nitrogen
File name:SecuriteInfo.com.Win32.BootkitX-gen.24031
Download: download sample
Signature Formbook
File size:995'840 bytes
First seen:2022-09-14 08:43:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:1HneAr5UNl6hdN/qq0Ztypw9bN+Oz2jrl:1HTiPkJPTOz2t
TLSH T12C25F16869DCBBB5C036CB3C20B0115603F394629B9EE78D6FD515F8CDE2A42792E607
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
365
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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 / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: Scheduled temp file as task from temp location
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-09-14 08:44:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ba17 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
4f80ddfe49b270f801ab44aa899153bbe2a0fb93abed0f9fc992f74ff6ab4fde
MD5 hash:
f4ba8570299eabf8fe2d02cc1dc0606a
SHA1 hash:
5d7add32313074f5a1e9b4ab379298dee8b6217e
SH256 hash:
18ae47a5c93f06553ae81092be278fbf582f3164bd25c131ea80c8c59ac123e3
MD5 hash:
05882423da2ba6f1ade82367727d2393
SHA1 hash:
2e0178e8eefa95008bb14e71f912ee4c3a913708
SH256 hash:
a88e5d5fb17e50a25cf6dfe2512fc45cc3f712dccccee2d08ee7d1dac7086e5e
MD5 hash:
3e336e588f8433c914b415a282d14b0b
SHA1 hash:
a5b36cf34d9ab4aca8b07a723848dd1dfcc755a4
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments