MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096. 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: 14

Intelligence 14 IOCs YARA 3 File information Comments

SHA256 hash:	d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096
SHA3-384 hash:	f05981dc6abe7b04fa0d5f35bdbbe3ee662896f56528ec3b1e9ed8b32143c1521eeb54b46e80d089a82b634a03637a0a
SHA1 hash:	d3c9d4fd95370cf6063010844673324d92811cec
MD5 hash:	072a37259f30feae8d01456e3a7b84d2
humanhash:	december-artist-kilo-wyoming
File name:	DN.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	700'416 bytes
First seen:	2024-09-03 02:16:17 UTC
Last seen:	2024-09-03 03:33:04 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	fc6683d30d9f25244a50fd5357825e79 (92 x Formbook, 52 x AgentTesla, 23 x SnakeKeylogger)
ssdeep	12288:YYV6MorX7qzuC3QHO9FQVHPF51jgc4nD8PL1ekJwMDaXDA7515EWHYu2OYx/tZN:3BXu9HGaVH4D8TtZDSDA75kWH6j
TLSH	T13AE422905FE1553BC0E552B2C93BAC20615230B98BC93BBD8398F16EF575783C913A6B
TrID	35.7% (.EXE) UPX compressed Win32 Executable (27066/9/6) 35.0% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4) 8.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 5.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
File icon (PE):
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	koluke
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

399

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

DN.exe

Verdict:

No threats detected

Analysis date:

2024-09-03 02:17:54 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/71751c22-4ca1-48b2-bea5-756352e3e640

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.Win32.Malware-gen.26039.22652.UNOFFICIAL

Verdict:

Malicious

Score:

90.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66d671668e12b8124ac90975

Tags:

Shellcodecrypter

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Launching a process

Сreating synchronization primitives

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

autoit lolbin microsoft_visual_cc packed packed packed shell32 upx

Link:

https://www.filescan.io/uploads/66d671a0155061779f2f8aaf/reports/84b6b3a5-e093-4bff-8193-4a87d34e8272/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096

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.

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/7ab6f83b-51b0-4df9-8ff2-dbb1ef42885e

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/1503181

Signature

AI detected suspicious sample

Binary is likely a compiled AutoIt script file

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 submitted file

Switches to a custom stack to bypass stack traces

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096/

Threat name:

Win32.Worm.DorkBot

Status:

Malicious

First seen:

2024-09-03 00:59:58 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

17 of 24 (70.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=2zrppds6brrm3sdgqnshntczudzg5xmv3hqu7uxsiz4syopuicla._file

Verdict:

malicious

Label(s):

formbook

Result

Malware family:

n/a

Score:

7/10

Tags:

discovery upx

Link:

https://tria.ge/reports/240903-cqp2sawbla/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

AutoIT Executable

Suspicious use of SetThreadContext

UPX packed file

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/da2b9eba-c21d-4e50-aa14-75ddc7b83c24

Unpacked files

SH256 hash:

a733c718bc86efb4dd0bc2f6003442637844451bbcf516ba0347300751ca672e

MD5 hash:

c7a95d6083a747e77534fe4d3a834e43

SHA1 hash:

ec7c51b46c3e2e3cfe8d5caaf5f5169c4cdca4a2

Detections:

win_formbook_g0

win_formbook_w0

Link:

https://www.unpac.me/results/516e1584-1bd3-43da-8b09-10f8fb9a18f0/

Parent samples :

593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf
2b2814cc30915dd6022bf80353b6e37bdabd379c351fd2e201cd3ee53621b147
3666991ba9b1b0ab338f41c37c0bfe3a8ae0fbfbde9820679a76362a610a0b23
d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096
17a478564c4eb41b217ae131ab1b433278bb60bd0d4b0f876f602d71336abae3
3fe4c784dfb841053360622561788dacfc8e4b81567bc461e4cd33e61d2d1e64
e38d7e764bae9be6ef464c001dc3784c28d165bff06c390ef600d785ec1871c1

SH256 hash:

b56ca9d855c924787ee2fc975458503b38c2cdc2990386bc1aba61372ba4a5f0

MD5 hash:

70b61828deeb6bc00745fe9f4d283437

SHA1 hash:

f2fb66e2c0311841603dbf3220a11ea4b84a8ea1

Link:

https://www.unpac.me/results/516e1584-1bd3-43da-8b09-10f8fb9a18f0/

SH256 hash:

f38754dad0f24fff12981aa0d51836c4dd864e88010bdb03be84aed8640a2f28

MD5 hash:

9a35403accdb2e517f1299e0c204b32c

SHA1 hash:

850fc336433ee956dab1ac1b4f85fca151707927

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/516e1584-1bd3-43da-8b09-10f8fb9a18f0/

SH256 hash:

d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096

MD5 hash:

072a37259f30feae8d01456e3a7b84d2

SHA1 hash:

d3c9d4fd95370cf6063010844673324d92811cec

Detections:

SUSP_Imphash_Mar23_3

Link:

https://www.unpac.me/results/516e1584-1bd3-43da-8b09-10f8fb9a18f0/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/d662f78e5e0c/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096

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:	SUSP_Imphash_Mar23_3 Create hunting rule
Author:	Arnim Rupp (https://github.com/ruppde)
Description:	Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:	Internal Research

Rule name:	UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser Create hunting rule
Author:	malware-lu

Rule name:	upx_largefile Create hunting rule
Author:	k3nr9

File information

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

Malspam

Formbook

exe d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096

(this sample)

Delivery method

Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::GetAce
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::timeGetTime
WIN_BASE_API	Uses Win Base API	KERNEL32.DLL::LoadLibraryA
WIN_NETWORK_API	Supports Windows Networking	MPR.dll::WNetUseConnectionW

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