MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5731442f5716f83eca02e956d6ec3c42aca7eda54eea7643cf18f95d6817546. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
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SHA256 hash: a5731442f5716f83eca02e956d6ec3c42aca7eda54eea7643cf18f95d6817546
SHA3-384 hash: 908856fac5838c69de5937d52c0615bd7e3ad933070c8cd655e6dbdc592f57efa25e5187b75a50fe6e5780390f6bb548
SHA1 hash: 735a4d10a58adab64deef3f4a63104d40dd8586a
MD5 hash: 36d837ee33175839b0fe83c09b5098d4
humanhash: uranus-whiskey-eleven-princess
File name:36d837ee33175839b0fe83c09b5098d4.exe
Download: download sample
Signature Formbook
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File size:1'091'072 bytes
First seen:2021-10-27 16:59:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'655 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 24576:y0x9FdgxqOhvSj8aSC5dAMlOddPBDxHT7mS:yYgxqOhELOddPHz7
Threatray 9'473 similar samples on MalwareBazaar
TLSH T1EA35061AB758BFA7E16D1F39881F1C2883F5C0232331F6AB29C59AD61185FD94B4F126
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
195
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/200664/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.5457.15191.1680.UNOFFICIAL
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Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/617985959a5a1e91c5d7a7c5/reports/b65ceba2-3978-4927-b68b-f11d6ac2adab/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/616ea44c-af06-496d-a301-013f0ee029dc
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/877966
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a5731442f5716f83eca02e956d6ec3c42aca7eda54eea7643cf18f95d6817546/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-10-27 17:00:05 UTC
AV detection:
16 of 44 (36.36%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
79043f2f23a008c67568fd1720f10911cfba7ba8008bd214599c6db49aa39791
Formbook
83806181eaf99abe4f92d4f5846837c73053239ec7412072913834e33721673c
Formbook
85eb901d5863c16a7526addfb18464967c45348aec3e1d1bf6014958fa4aff8f
Formbook
bcf09c801e101acbaa20ef272f86c7eac2c311bf20c6a5b6e245fc0b92be576e
Formbook
c4d1d6a9baaeb3802cfb9f7e21db83b85236844b62dc05f8ed4822e491703eb3
Formbook
e876c1db90717ff0819f4fc578adace61decdad64963836ebc9ae983dc87a5d6
Formbook
+ 9'463 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:upi8 agilenet loader rat
Link:
https://tria.ge/reports/211027-vhzkcsfgd6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.dfwbcs.com/upi8/
Unpacked files
SH256 hash:
a5731442f5716f83eca02e956d6ec3c42aca7eda54eea7643cf18f95d6817546
MD5 hash:
36d837ee33175839b0fe83c09b5098d4
SHA1 hash:
735a4d10a58adab64deef3f4a63104d40dd8586a
Link:
https://www.unpac.me/results/00dc469f-f7fb-4f78-97cb-d3200f525511/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a5731442f571/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/a5731442f5716f83eca02e956d6ec3c42aca7eda54eea7643cf18f95d6817546

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
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Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe a5731442f5716f83eca02e956d6ec3c42aca7eda54eea7643cf18f95d6817546

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/200664/
  
URLhaus
https://urlhaus.abuse.ch/url/1715158/
  
Delivery method
Distributed via web download

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