MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76
SHA3-384 hash: 4841a7fb058b01577338b63b7ae9aa3d4bc05dd95bb6ccd6beccf3a6014ddd61c6f28ab892caae25f8bdd8b0d6b4c747
SHA1 hash: 6f202422a43f4d6cd61ec7c8d2dba240914bd1e2
MD5 hash: 79e58f38e91ae3e0adac6e495faa6420
humanhash: eighteen-washington-apart-freddie
File name:rShippingDocuments.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'193'472 bytes
First seen:2024-06-04 18:43:37 UTC
Last seen:2024-06-10 10:46:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:rAHnh+eWsN3skA4RV1Hom2KXMmHaVIk6SBbvmjsg5:Gh+ZkldoPK8YaVIk9vgf
Threatray 33 similar samples on MalwareBazaar
TLSH T15D45AD0273E1C036FFAB92739B6AB24556BD79254133852F13981DB9BC701B2273E663
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 FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
5
# of downloads :
589
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76.exe
Verdict:
Malicious activity
Analysis date:
2024-06-04 18:45:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5f753325-7e3d-402e-9ef9-a551a00baba8

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.EJA111.30507.3344.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665f7503ab69e84d6a2f692bwin7simulatehigh_evasion
Tags:
Encryption Execution Generic Network Shellcodecrypter
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 epmicrosoft_visual_cc fingerprint keylogger lolbin masquerade microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/665f60750bf5978c0b0c460c/reports/69cbf838-e0b3-4c45-a5c8-b050a8a20dae/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76
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/623cd15b-de73-412f-b230-a40066f3f030
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1451970
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 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
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: 1451970 Sample: rShippingDocuments.exe Startdate: 04/06/2024 Architecture: WINDOWS Score: 100 44 www.beescy.xyz 2->44 46 www.yetung.com 2->46 48 19 other IPs or domains 2->48 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 Multi AV Scanner detection for submitted file 2->72 76 7 other signatures 2->76 11 rShippingDocuments.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 62 Drops VBS files to the startup folder 17->62 23 svchost.exe 17->23         started        64 Writes to foreign memory regions 21->64 66 Maps a DLL or memory area into another process 21->66 26 svchost.exe 21->26         started        signatures9 process10 signatures11 80 Maps a DLL or memory area into another process 23->80 28 UrVXRAoYqtsJ.exe 23->28 injected process12 signatures13 86 Found direct / indirect Syscall (likely to bypass EDR) 28->86 31 sethc.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 2 other signatures 31->94 34 UrVXRAoYqtsJ.exe 31->34 injected 38 firefox.exe 31->38         started        process16 dnsIp17 50 www.beescy.xyz 162.0.213.72, 49740, 49741, 49742 ACPCA Canada 34->50 52 johnson.health 111.221.46.49, 49760, 49761, 49762 READYSERVER-SGREADYSERVERPTELTDSG Singapore 34->52 54 14 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/ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76/
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2024-06-04 03:05:34 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zjqyi4tgwxyefjxlhufzqzi5nlddes365ogev2vdeyghj75htr3a._file
Verdict:
malicious
Similar samples:
173f352caf429971b671dd49c04aaf7d61c6d04fe11e9ef6e7976f395a9b844b
Formbook
49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf
Formbook
87499bd6f568554b2fd7ae63998373ac83d83cea3121a146979e1a9d5b18270a
Formbook
9389de75134803e64539e04f6b4db1081754b829fbb3ae0929bf1040fefc9258
Formbook
a70008d95ba3e813cd35c1c663aa46c3cf6c95eeaeccbfbdeb18597daec36647
Formbook
a9c9824497908a525a168c43d743fea3d1f5dc4c3004e8fe51b77a28ac018829
Formbook
b86258bbf5182d3da8292cbff6262a90cef9dd418fd8b6706fde5747662da2ae
Formbook
c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4
Formbook
c7e758fd23e2e8806a99e41d5c69d17450e330e69d4ab0a911aee9a878128eff
Formbook
d0b94b855d2f24add1edf6b3a6ecae24e4366f181a1ccd0bcd3b27e94de95bc0
Formbook
+ 23 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240604-xdf9bsge92/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
7275b2a2a95b0dd5b7eac570142c28e1e24194bde98345f12c76f5833dcf5b7d
MD5 hash:
946bd1d1e489f4d113e4f5f547b23f7b
SHA1 hash:
b9253245f1f57f697500faaa867ee75312fe3f08
Link:
https://www.unpac.me/results/5faaed31-b8bb-436d-b9c9-0c7054a05ad3/
SH256 hash:
8309221b129494e58b531e1bb54e12b89d9d2914d893fe831dd19b099aba7331
MD5 hash:
b36c15e967699b292c6aec154f26ba7e
SHA1 hash:
a55f9f93e516b0edf9c69f94eb5df5984ee83a60
Link:
https://www.unpac.me/results/5faaed31-b8bb-436d-b9c9-0c7054a05ad3/
SH256 hash:
ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76
MD5 hash:
79e58f38e91ae3e0adac6e495faa6420
SHA1 hash:
6f202422a43f4d6cd61ec7c8d2dba240914bd1e2
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/5faaed31-b8bb-436d-b9c9-0c7054a05ad3/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca61847266b5/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/ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76

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: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: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: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

File information

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

Malspam

Formbook

Executable exe ca61847266b5f042a6eb3d0b98651d6ac6324b7eeb8c4aeaa3260c74ffa79c76

(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::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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