MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5. 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 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5
SHA3-384 hash: c16bf47e5f0300d788d140e2fa59d814ff0d0de013e2b05fe10f07c7538a01f8b4729b896d457d71417fb741dbbecdda
SHA1 hash: 91e513f38310ec35b6568ab78db72e07baac8e80
MD5 hash: 9503c5e38cc3212777d0f35ad86ad949
humanhash: tennis-cold-high-sad
File name:Document TOP19928.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:752'128 bytes
First seen:2024-06-26 12:53:19 UTC
Last seen:2024-06-26 13:23:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fc6683d30d9f25244a50fd5357825e79 (92 x Formbook, 52 x AgentTesla, 23 x SnakeKeylogger)
ssdeep 12288:/YV6MorX7qzuC3QHO9FQVHPF51jgcpqKnggkmgO/6Px1rv/DWWVVS5TwckDSn8vA:MBXu9HGaVHMgg5vO/6Pf7eE5+n8vk04
Threatray 9 similar samples on MalwareBazaar
TLSH T116F423825BC1DD7AC1162772C43ACC689865B8B6CEC83FAD4786F61DF0367D2D84252B
TrID 31.3% (.EXE) UPX compressed Win32 Executable (27066/9/6)
30.7% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
12.1% (.EXE) Win64 Executable (generic) (10523/12/4)
7.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
368
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5.exe
Verdict:
Suspicious activity
Analysis date:
2024-06-26 12:54:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e8f09161-fa8e-4db8-b639-aacccd16b9e1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.AutoIt.1410.22110.4275.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667c0fb584b0b51997cac1fdwin10vpnfull_triage
Tags:
Network Stealth Trojan Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
AutoIt lolbin microsoft_visual_cc packed packed redcap shell32 upx
Link:
https://www.filescan.io/uploads/667c0f7249a1c83062689029/reports/2688fc82-ecfa-46af-84df-2b626562c0a4/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5
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:
Unknown
Link:
https://analyze.intezer.com/analyses/7856967d-ff2c-4137-9da8-f9c1f79febb3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1462990
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Drops VBS files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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 domain / URL
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)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1462990 Sample: Document TOP19928.exe Startdate: 26/06/2024 Architecture: WINDOWS Score: 100 44 www.joyesi.xyz 2->44 46 www.magmadokum.com 2->46 48 19 other IPs or domains 2->48 68 Multi AV Scanner detection for domain / URL 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for URL or domain 2->72 76 8 other signatures 2->76 11 Document TOP19928.exe 6 2->11         started        15 wscript.exe 1 2->15         started        signatures3 74 Performs DNS queries to domains with low reputation 44->74 process4 file5 42 C:\Users\user\AppData\Local\...\name.exe, PE32 11->42 dropped 82 Binary is likely a compiled AutoIt script file 11->82 17 name.exe 3 11->17         started        84 Windows Scripting host queries suspicious COM object (likely to drop second stage) 15->84 21 name.exe 2 15->21         started        signatures6 process7 file8 40 C:\Users\user\AppData\Roaming\...\name.vbs, data 17->40 dropped 56 Multi AV Scanner detection for dropped file 17->56 58 Binary is likely a compiled AutoIt script file 17->58 60 Machine Learning detection for dropped file 17->60 66 2 other signatures 17->66 23 svchost.exe 17->23         started        62 Writes to foreign memory regions 21->62 64 Maps a DLL or memory area into another process 21->64 26 svchost.exe 21->26         started        signatures9 process10 signatures11 80 Maps a DLL or memory area into another process 23->80 28 HAeLffQrBWbBcOffDKoNxdCPr.exe 23->28 injected process12 signatures13 86 Found direct / indirect Syscall (likely to bypass EDR) 28->86 31 netbtugc.exe 13 28->31         started        process14 signatures15 88 Tries to steal Mail credentials (via file / registry access) 31->88 90 Tries to harvest and steal browser information (history, passwords, etc) 31->90 92 Modifies the context of a thread in another process (thread injection) 31->92 94 3 other signatures 31->94 34 HAeLffQrBWbBcOffDKoNxdCPr.exe 31->34 injected 38 firefox.exe 31->38         started        process16 dnsIp17 50 www.rssnewscast.com 91.195.240.94, 65231, 65232, 65233 SEDO-ASDE Germany 34->50 52 elettrosistemista.zip 195.110.124.133, 65239, 65240, 65241 REGISTER-ASIT Italy 34->52 54 11 other IPs or domains 34->54 78 Found direct / indirect Syscall (likely to bypass EDR) 34->78 signatures18
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2024-06-24 08:11:55 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o3q7hysolaceqebbopdecr5vdyjygt52m3bu5u7cops3ktejl7sq._file
Verdict:
malicious
Similar samples:
6832fecaac8e4dcaab5fd45eb3a5f7c36c3749202c30d0f626397d4f78a6b86c
Formbook
ba94e97e0b43b4d344e2cde0e1c5c7041b5efdb61ba3a47f2a7605dd7bb07bd2
Formbook
c18e91fedad79cf98044d7a754dd39b673018e28dc6935bc9d63515b8d91a6be
Formbook
dd45842d2a7857d5cc5250fe23538be3cc88a33fff794156c3468ac3c8030ee9
Formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
upx
Link:
https://tria.ge/reports/240626-p47j7svfqg/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
UPX packed file
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/828f7d0a-3de9-4378-9339-1a3e8d510ced
Unpacked files
SH256 hash:
b44d6f57aeb656f27afc88f54c97c618d4daa697ee27c10e1887dcb5dd83eea0
MD5 hash:
c3735d448f0d4d3db6fe20d7ad033c84
SHA1 hash:
2edfaa0ec53b3c5459a40bd9d772b25bc6ce4e49
Link:
https://www.unpac.me/results/92d952f8-975c-4b76-a59e-0d9cbb7310df/
SH256 hash:
95d4e6d867da09d9fb2302ef94d540644204068b149018da9258cc36397ffbd2
MD5 hash:
136616fdb1e67935a6142086452e8eef
SHA1 hash:
c14840db3410d29d1a16822b917dacf1860b98eb
Link:
https://www.unpac.me/results/92d952f8-975c-4b76-a59e-0d9cbb7310df/
SH256 hash:
db34c205c9dec617198ee7411510422b5bcb1aa7001bd12d05b8e38a97fef4d3
MD5 hash:
3d47d4626588b6fdb12ca95f849c9834
SHA1 hash:
e9bd91181dcd5179af60222e4c796545afd68903
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/92d952f8-975c-4b76-a59e-0d9cbb7310df/
Parent samples :
76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5
db34c205c9dec617198ee7411510422b5bcb1aa7001bd12d05b8e38a97fef4d3
SH256 hash:
76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5
MD5 hash:
9503c5e38cc3212777d0f35ad86ad949
SHA1 hash:
91e513f38310ec35b6568ab78db72e07baac8e80
Detections:
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/92d952f8-975c-4b76-a59e-0d9cbb7310df/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/76e1f3e24e58/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/76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe 76e1f3e24e580448102173c64147b51e13834fba66c34ed3e273e5b54c895fe5

(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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetAce
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetUseConnectionW

Comments