MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2. 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: 17

Intelligence 17 IOCs YARA 4 File information Comments

SHA256 hash:	b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2
SHA3-384 hash:	22fdc88a6c8b8f746866580aceef03edafbc3ce2f66c7f703cdee842d013fc32281bbcb98289f99fa94cd4a204731d64
SHA1 hash:	46b121a17c3f960430f488bcb4cc1c15307bdd55
MD5 hash:	d6b81c33449a58e41301d210bc265632
humanhash:	cola-monkey-beer-texas
File name:	Quotation #10091.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	776'435 bytes
First seen:	2024-09-25 06:27:06 UTC
Last seen:	2024-09-25 10:05:37 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	890e522b31701e079a367b89393329e6 (25 x Formbook, 12 x AgentTesla, 8 x Loda)
ssdeep	12288:v6Wq4aaE6KwyF5L0Y2D1PqLTA1S3c0DLFvFjmOd1soYKrdyTnapuTHTNOG002Iil:tthEVaPqLTAV89FNXuKrd6hTzoD02Iil
Threatray	964 similar samples on MalwareBazaar
TLSH	T1BCF433AA7192DC62DD3800F5EB4357E1C158B2345B39576FB118B22714AF2289FDE7E0
TrID	86.7% (.EXE) AutoIt3 compiled script executable (510622/80/67) 4.5% (.EXE) UPX compressed Win32 Executable (27066/9/6) 4.5% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4) 1.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 0.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
File icon (PE):
dhash icon	b150b26869b2d471 (468 x Formbook, 101 x RedLineStealer, 94 x AgentTesla)
Reporter	lowmal3
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

388

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Quotation #10091.exe

Verdict:

No threats detected

Analysis date:

2024-09-25 06:30:52 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/098f5792-9fa7-47d4-ba27-03c774fc1ff3

Note:

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

Detection(s):

SecuriteInfo.com.PSW.Banker6.BTQY.1690.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66f3ad745346c7b922adeeef

Tags:

Encryption Network Stealth Exploit Trojan Tori

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Creating a file in the %temp% directory

Launching a process

Сreating synchronization primitives

Launching cmd.exe command interpreter

Setting browser functions hooks

Unauthorized injection to a system process

Unauthorized injection to a browser process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

autoit lolbin microsoft_visual_cc overlay packed packed packed shell32 upx

Link:

https://www.filescan.io/uploads/66f3ad75e5b9f4e4c3ecb49a/reports/65f03b79-26cc-4c18-8ac2-64c5ba7f8889/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2

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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/b010a089-7e45-43c7-a1a1-c0cac0d24dde

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1517895

Signature

AI detected suspicious sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Found malware configuration

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

Modifies the context of a thread in another process (thread injection)

Multi AV Scanner detection for submitted file

Performs DNS queries to domains with low reputation

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Suricata IDS alerts for network traffic

Switches to a custom stack to bypass stack traces

Tries to detect virtualization through RDTSC time measurements

Tries to resolve many domain names, but no domain seems valid

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2

Detection:

formbook

Link:

https://mwdb.cert.pl/sample/b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2/

Threat name:

Win32.Trojan.Autoitinject

Status:

Malicious

First seen:

2024-09-25 06:28:04 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wsa726gq64k2v56xirwdhyv56uaoklq4bvmm4x4b56xcl742r7ja._file

Verdict:

malicious

Label(s):

admintool_powerrun

Formbook

8a4f3f97105ed3e4700a34f71fa7f6a8cd6be9479cfba9f79cdd08cb112f62ef

Formbook

8d83a9a3bbd6e63e37b6d66c4febdbcf17a48fe77fabdd52c5bfa01a661a33da

Formbook

b3647d36c291bd8ab5907166f15e003ee34e07221fde3665611a142a13dca393

Formbook

ca690123d14bd3632ab53a076f8bfb7bd2176248af6b735af9719aca77a024b5

Formbook

e5aebbb2c6ad445d5a2ee5c33a77d8ecfe74cf206433b723736e2e88b9b5d78f

Formbook

+ 954 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:c24t discovery rat spyware stealer trojan upx

Link:

https://tria.ge/reports/240925-g8cavsshph/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

AutoIT Executable

Suspicious use of SetThreadContext

UPX packed file

Formbook payload

Formbook

Verdict:

Suspicious

Tags:

trojan

YARA:

MAL_Malware_Imphash_Mar23_1

Link:

https://app.threat.zone/submission/89034889-e5aa-4390-afb1-6d3cbda8495a

Unpacked files

SH256 hash:

40babe4601da80b05397c6f203e270862747ea19ac9970dc59b3cf0df1d1fb87

MD5 hash:

a361843a96b935377a3e65f049fc50f3

SHA1 hash:

cf3cbeb8e1f17859cb0c08c655a0b23f89bc0cdd

Detections:

FormBook

win_formbook_g0

win_formbook_auto

win_formbook_w0

Formbook

Link:

https://www.unpac.me/results/6ff3308b-adb0-4b38-a2ee-67d12e659b23/

Parent samples :
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SH256 hash:

49cd4a444541edffb08508edbbf894ed98d22c3e5eacc5b4faba3ae71b4ef519

MD5 hash:

0d36010c818f506094aec569069d2b9e

SHA1 hash:

d839a68958a64a6d870b7219280624bc5e20e469

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/6ff3308b-adb0-4b38-a2ee-67d12e659b23/

SH256 hash:

b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2

MD5 hash:

d6b81c33449a58e41301d210bc265632

SHA1 hash:

46b121a17c3f960430f488bcb4cc1c15307bdd55

Detections:

MAL_Malware_Imphash_Mar23_1

Link:

https://www.unpac.me/results/6ff3308b-adb0-4b38-a2ee-67d12e659b23/

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/b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2

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:	MAL_Malware_Imphash_Mar23_1 Create hunting rule
Author:	Arnim Rupp
Description:	Detects malware by known bad imphash or rich_pe_header_hash
Reference:	https://yaraify.abuse.ch/statistics/

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

Rule name:	UPXv20MarkusLaszloReiser 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

zip f27e5747ed86d455994dd693a78eae10aa7e212eb7411b1665939b86e44b134f

Formbook

exe b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2

(this sample)

Delivery method

Distributed via e-mail attachment

Dropped by

SHA256 f27e5747ed86d455994dd693a78eae10aa7e212eb7411b1665939b86e44b134f

Dropped by

MD5 120ddc8ee363dc6d25749f43ccd9292f

Dropped by

SHA256 b6ef6554bd6505d5f7b65a5e8b12118ee502c0a75fb347986b9f5c285038fc7f

Dropped by

MD5 81f28b8a6cfd6b7caf18019e7030a98a

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
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

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

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