MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683
SHA3-384 hash: c722de7f70c9dabdcc3288b68c9479251dbfb065581c7270c0d2f2855d4e4d85c193277af19ebb9fa37b52abe6bcee0b
SHA1 hash: 901ab4142ca671f54da1d3573cc42c2a454dd637
MD5 hash: eadc7ea5f1e0469e226b84df015c09db
humanhash: fillet-fish-florida-wyoming
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'233'920 bytes
First seen:2024-06-14 12:57:16 UTC
Last seen:2024-06-14 13:43:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:LAHnh+eWsN3skA4RV1Hom2KXMmHaWDk+x/XoLQfYqC5:mh+ZkldoPK8YaWDk+h6x
Threatray 7 similar samples on MalwareBazaar
TLSH T1C345BE0273D1C036FFABA2739B6AF20556BC79654123852F13981DB9BC701B2267E763
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683.exe
Verdict:
Malicious activity
Analysis date:
2024-06-14 13:08:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/34553af4-b021-46b1-b15d-ff37e083335e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Trojan-Stealer.FormBook.H6T7YN.26583.20348.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666c4d349172918f990d9cc0win7simulatehigh_evasion
Tags:
Encryption Inject
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/666c3e5d6b8dba248b40ebc0/reports/b39f654f-058a-4d75-83cf-24300f369b64/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683
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/269013f3-4904-4b82-90fd-3b06515c2c6f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1457258
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1457258 Sample: file.exe Startdate: 14/06/2024 Architecture: WINDOWS Score: 100 28 www.d99qtpkvavjj.xyz 2->28 30 www.cloudsoda.xyz 2->30 32 8 other IPs or domains 2->32 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Malicious sample detected (through community Yara rule) 2->46 50 5 other signatures 2->50 10 file.exe 4 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 30->48 process4 signatures5 62 Binary is likely a compiled AutoIt script file 10->62 64 Writes to foreign memory regions 10->64 66 Maps a DLL or memory area into another process 10->66 68 Switches to a custom stack to bypass stack traces 10->68 13 svchost.exe 10->13         started        process6 signatures7 70 Maps a DLL or memory area into another process 13->70 16 ZrrydgqLBN.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 convert.exe 13 16->19         started        process10 signatures11 52 Tries to steal Mail credentials (via file / registry access) 19->52 54 Tries to harvest and steal browser information (history, passwords, etc) 19->54 56 Modifies the context of a thread in another process (thread injection) 19->56 58 3 other signatures 19->58 22 ZrrydgqLBN.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.firmshow.top 203.161.43.228, 49715, 49716, 49717 VNPT-AS-VNVNPTCorpVN Malaysia 22->34 36 8418a72e.jl800.vip.cname.scname.com 65.181.132.188, 49719, 49720, 49721 PAIR-NETWORKSUS United States 22->36 38 2 other IPs or domains 22->38 60 Found direct / indirect Syscall (likely to bypass EDR) 22->60 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-06-14 03:49:34 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
12 of 24 (50.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yjq5uizw5pvcsdervdbaiagznsa4oszqslyc6ovln4mfuo6sc2bq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02f459b511e5135137e80a5e99130d8d30b4aadb446e85d1b8290eb6d240283e
Formbook
2147a98d06363c13164eb05dbaa3f4284c765a5e55bef5f15727edd55fabff7b
Formbook
327db1c1b7fded33f7b8b9e54c591fc4e023a79ecdf59387803c05124a77cd90
Formbook
416de50eb7136a66364744b8712b82405813c4192cdf2764fcbbec07154495d9
Formbook
890e70b014e1110768b607831d9390d3b8494f236b9e690cdea2768ff2b98175
Formbook
d0b94b855d2f24add1edf6b3a6ecae24e4366f181a1ccd0bcd3b27e94de95bc0
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240614-p7gsysvgjm/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
36f148278d72d9053238933d157c14245a4e5a8919a5810622036c2d2ad31066
MD5 hash:
1b3731f9761975b2c1c8e0509f9994ef
SHA1 hash:
48e7123e1f7a98576fc59e26b3de3a210c2cada3
Link:
https://www.unpac.me/results/06ce39df-d74e-4219-abf8-29a8a448447c/
SH256 hash:
9f893195c4d8f5d2415dd084908ed11b93fc43315bf6155991c6f77001d0aa94
MD5 hash:
d18279ae3e9c00d067ff9f15c9c1c317
SHA1 hash:
ec9129501ddb4eed1a4de3bea0aa8edbe2015515
Link:
https://www.unpac.me/results/06ce39df-d74e-4219-abf8-29a8a448447c/
SH256 hash:
c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683
MD5 hash:
eadc7ea5f1e0469e226b84df015c09db
SHA1 hash:
901ab4142ca671f54da1d3573cc42c2a454dd637
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/06ce39df-d74e-4219-abf8-29a8a448447c/
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/c261da2336ebea290c91a8c20400d96c81c74b3092f02f3aab6f185a3bd21683

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
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: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

File information

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

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::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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