MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97. 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:	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97
SHA3-384 hash:	e4243789f47fcd4777507ade06b684cd5b8efd37d4e48a64c0d8e156e6df79891c4202233d6bd54bea68ff9f41eae0ba
SHA1 hash:	e79c2dde745697bace3bc0efceb136b4796b61a0
MD5 hash:	1f3a6997ed55ef6be6beccfc1996e011
humanhash:	nitrogen-bravo-hot-mexico
File name:	Quotation #10091.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	762'831 bytes
First seen:	2024-09-24 16:01:09 UTC
Last seen:	2024-09-24 18:01:55 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	890e522b31701e079a367b89393329e6 (25 x Formbook, 12 x AgentTesla, 8 x Loda)
ssdeep	12288:v6Wq4aaE6KwyF5L0Y2D1PqLRMiO8RxrhwK9kNr2rReqSHmZBGtA/q80okL3Rf:tthEVaPqLRlO8VCx2NeqlTOt
Threatray	963 similar samples on MalwareBazaar
TLSH	T149F423FA3162E821E4591231E7032387C1F1D6315A78FAEBA085ACDF5C2B025697F79C
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 :

403

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Quotation #10091.exe

Verdict:

No threats detected

Analysis date:

2024-09-24 16:06:07 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/7bf44342-e2ee-4f5f-b17f-f87f0faeb13e

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:

90.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66f2e27d5346c7b922adb269

Tags:

Encryption Stealth Swotter Injection Exploit Autoit

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/66f2e27c972cea95645eeb0f/reports/281e90b6-446a-4c76-be80-ac7a25aa986f/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97

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:

Suspicious

Link:

https://analyze.intezer.com/analyses/988fb7a0-1831-46e9-a4b6-c2d7541ec3eb

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1517016

Signature

AI detected suspicious sample

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

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/36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97

Detection:

formbook

Link:

https://mwdb.cert.pl/sample/36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97/

Threat name:

Win32.Backdoor.FormBook

Status:

Malicious

First seen:

2024-09-24 16:02:06 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

16 of 38 (42.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=gzbbxx4q5kb5jztxuvdrb5gtlyv4cwqselckxml6pcmwakpvhslq._file

Verdict:

malicious

Label(s):

admintool_powerrun

Formbook

8a4f3f97105ed3e4700a34f71fa7f6a8cd6be9479cfba9f79cdd08cb112f62ef

Formbook

8d83a9a3bbd6e63e37b6d66c4febdbcf17a48fe77fabdd52c5bfa01a661a33da

Formbook

b3647d36c291bd8ab5907166f15e003ee34e07221fde3665611a142a13dca393

Formbook

ca690123d14bd3632ab53a076f8bfb7bd2176248af6b735af9719aca77a024b5

Formbook

e5aebbb2c6ad445d5a2ee5c33a77d8ecfe74cf206433b723736e2e88b9b5d78f

Formbook

+ 953 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:c89p discovery rat spyware stealer trojan upx

Link:

https://tria.ge/reports/240924-tgr88avhpd/

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/a2d1e402-286a-4980-8e42-8d9ce00029a4

Unpacked files

SH256 hash:

9882e205ccb6e1a05b0c19b5c3bc82945b789a265f0932a5aa129e1bd4639161

MD5 hash:

33cbd92131f8735d23eb84a33db1fc05

SHA1 hash:

a1c55458d991ebec56eb5f9cf369edf98d92bce8

Detections:

FormBook

win_formbook_g0

win_formbook_auto

win_formbook_w0

Formbook

Link:

https://www.unpac.me/results/836baf14-8f09-4d11-a6a6-356dce2e1491/

Parent samples :
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SH256 hash:

a5cf04dca9e1fb0f864486580dc9fb1aa9be848667ceed3db4fe0a806121a251

MD5 hash:

595d09b30b158a7e019b21bafe5368a4

SHA1 hash:

db7d947ccd41b0d80823b7ae71d623ac430f9be6

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/836baf14-8f09-4d11-a6a6-356dce2e1491/

SH256 hash:

36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97

MD5 hash:

1f3a6997ed55ef6be6beccfc1996e011

SHA1 hash:

e79c2dde745697bace3bc0efceb136b4796b61a0

Detections:

MAL_Malware_Imphash_Mar23_1

Link:

https://www.unpac.me/results/836baf14-8f09-4d11-a6a6-356dce2e1491/

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/36421bdf90ea/report/overview.html

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

Threat name:

Formbook

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97

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

rar f3243a385c52c660c7c590a7ef77324199c3ccdd8fb70ed3292028afc2583c82

Formbook

exe 36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97

(this sample)

Delivery method

Distributed via e-mail attachment

Dropped by

SHA256 f3243a385c52c660c7c590a7ef77324199c3ccdd8fb70ed3292028afc2583c82

Dropped by

MD5 7a6ad3eb134817a5399fbaa75751e0d5

Dropped by

SHA256 8215f0a542629e502e4b27019455d0dd2636712c14eaa43501ed4c836f566593

Dropped by

MD5 5b14186f7872d6679dbc552e62cad798

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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