MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d40ae41d37143ffb8be9ec1d85563e3cd3b7def268abc33453b926d70a1aee7. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5d40ae41d37143ffb8be9ec1d85563e3cd3b7def268abc33453b926d70a1aee7
SHA3-384 hash: 284c303274d4930ad5cbe249ef4136f66878432bb0fbbbe1e2f20f0147403df10e7e16489a0b837e12fe783db0e7f6a2
SHA1 hash: 92818d455dc857e2cd605226f33d26e76f9a99a8
MD5 hash: 0549b723ce5eede38660e1c6d1d1fbd2
humanhash: vermont-glucose-five-bluebird
File name:05538369.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:549'629 bytes
First seen:2023-01-20 14:12:44 UTC
Last seen:2023-01-20 14:49:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 12288:tY+ubs2v1OLaxbdhhLMK4eub62JIoDDUXkl7n/myramp9qr:tY+ubpMLGRhhLgay3DDU0RnO0qr
Threatray 17'433 similar samples on MalwareBazaar
TLSH T15FC41211B7D4EC17C09013312636E3F12EF85A80399A535F3F516B8EBDA6BA6DD0538A
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f8e8f8f2d8e8a4a4 (1 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
05538369.exe
Verdict:
Malicious activity
Analysis date:
2023-01-20 14:14:57 UTC
Tags:
stealer
Link:
https://app.any.run/tasks/d6a3b358-2e85-4cfe-a24b-fe397a6c271e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/354996/
Detection(s):
SecuriteInfo.com.Variant.Babar.142505.19885.22964.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
Сreating synchronization primitives
Searching for the window
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61775/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  10/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63caa16f416d38777a79d531/reports/77ca143e-29b9-4aea-9e4e-2b794544a7c6/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1422a8ee-b6b1-4604-a8cd-0bfbaad60005
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155553
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
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 dropped file
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
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 788286 Sample: 05538369.exe Startdate: 20/01/2023 Architecture: WINDOWS Score: 100 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 Yara detected FormBook 2->65 10 05538369.exe 19 2->10         started        process3 file4 41 C:\Users\user\AppData\Local\...\bgihjvlxk.exe, PE32 10->41 dropped 13 bgihjvlxk.exe 1 3 10->13         started        process5 file6 43 C:\Users\user\AppData\Roaming\...\tyqjwqu.exe, PE32 13->43 dropped 83 Multi AV Scanner detection for dropped file 13->83 85 Detected unpacking (changes PE section rights) 13->85 87 Maps a DLL or memory area into another process 13->87 89 Contains functionality to detect sleep reduction / modifications 13->89 17 bgihjvlxk.exe 13->17         started        20 conhost.exe 13->20         started        signatures7 process8 signatures9 51 Modifies the context of a thread in another process (thread injection) 17->51 53 Maps a DLL or memory area into another process 17->53 55 Sample uses process hollowing technique 17->55 57 Queues an APC in another process (thread injection) 17->57 22 explorer.exe 7 2 17->22 injected process10 dnsIp11 45 capertidai.shop 198.252.105.99, 49707, 80 HAWKHOSTCA Canada 22->45 47 natroredirect.natrocdn.com 85.159.66.93, 49708, 49709, 49710 CIZGITR Turkey 22->47 49 7 other IPs or domains 22->49 67 System process connects to network (likely due to code injection or exploit) 22->67 69 Performs DNS queries to domains with low reputation 22->69 71 Uses ipconfig to lookup or modify the Windows network settings 22->71 26 ipconfig.exe 13 22->26         started        29 tyqjwqu.exe 1 22->29         started        31 tyqjwqu.exe 1 22->31         started        signatures12 process13 signatures14 73 Tries to steal Mail credentials (via file / registry access) 26->73 75 Tries to harvest and steal browser information (history, passwords, etc) 26->75 77 Modifies the context of a thread in another process (thread injection) 26->77 79 Maps a DLL or memory area into another process 26->79 81 Multi AV Scanner detection for dropped file 29->81 33 WerFault.exe 10 29->33         started        35 conhost.exe 29->35         started        37 WerFault.exe 4 10 31->37         started        39 conhost.exe 31->39         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5d40ae41d37143ffb8be9ec1d85563e3cd3b7def268abc33453b926d70a1aee7/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-01-20 10:33:23 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lvak4qotofb77of6t3a5qvld4pgtw7ppe2flym2fhojg24fbv3tq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
123e747239c973af2c8b7dc8a33b26fdc3cb05f2be8af864290f823daae7d764
Formbook
17310a407cf725a962dffd7d620f9bc625331a3b82f4588f882ceffd859ba13e
Formbook
4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9
Formbook
7ae47693c2140e42e5a9ef4a8bea41417ac6090e8bf2d8cd8f8e14ad02a3d275
Formbook
b6fe7602e8f288c48cf04e60306dc9349c5b9ebeb8faf35905abede7d0525480
Formbook
bfc9cf8ef1369ba05191e708fea5b6c71d653dee922f15a53a7aed0642e1b756
Formbook
cef638f9ba310dfd22719a682dfe6ad1a07c06b122b54127e2a6257e9acc7752
Formbook
+ 17'423 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/230120-rjd39sgb2y/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Unpacked files
SH256 hash:
bfd905897f0b63697091a9fa40d2a4c9b54b4052e02d3d473654d039803eae37
MD5 hash:
e0b5bb5129ad64d7bd988bac56ac0113
SHA1 hash:
9e3ef2a1828d552d8b692e6fc58a04d66f453fe2
Link:
https://www.unpac.me/results/a4ffd379-8af1-4b02-acc5-17b9f70186a9/
SH256 hash:
1d0e61e3f113920845ee823a91fddad2e37c3053b9c8f9767d7fe5df31fa329d
MD5 hash:
a224edcc925f354666447250ef040b5c
SHA1 hash:
8c700a52bec5e7cf1e9f44f34a2ee9df7997ed52
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a4ffd379-8af1-4b02-acc5-17b9f70186a9/
Parent samples :
a58a5f2c0f0ffae962702357f07665dbf49adc4c376aae50de4ce02745f3b06a
87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d
5d40ae41d37143ffb8be9ec1d85563e3cd3b7def268abc33453b926d70a1aee7
428aee241022499cbd49907635162f116e24792b117490949fa3527dc130b90f
SH256 hash:
1f603a41359e53660e48e6aee452b63480b530c1144a5223e92f76382515cd65
MD5 hash:
7fea2804b4ce196ac2f0fc5f23b74bf0
SHA1 hash:
dc56918f63b5d240bb6aafa2a3f0c8217c1c9095
Link:
https://www.unpac.me/results/a4ffd379-8af1-4b02-acc5-17b9f70186a9/
SH256 hash:
5d40ae41d37143ffb8be9ec1d85563e3cd3b7def268abc33453b926d70a1aee7
MD5 hash:
0549b723ce5eede38660e1c6d1d1fbd2
SHA1 hash:
92818d455dc857e2cd605226f33d26e76f9a99a8
Link:
https://www.unpac.me/results/a4ffd379-8af1-4b02-acc5-17b9f70186a9/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5d40ae41d371/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/5d40ae41d37143ffb8be9ec1d85563e3cd3b7def268abc33453b926d70a1aee7

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/354996/

Comments