MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0. 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 22 File information Comments
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SHA256 hash: 4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0
SHA3-384 hash: 87c67f7d55b5a5e3ef0974367fa1337d43bff76885ec652ea4d7cc6add7c5ffd354cdf7359d09ecb137d3c58f202235e
SHA1 hash: e03021cd4c55f6a3df845611dcafcb9310453c62
MD5 hash: db70135e8dbccf549d724c7c78506a10
humanhash: wolfram-king-quiet-arizona
File name:Swift Copy.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'142'784 bytes
First seen:2024-06-15 00:00:51 UTC
Last seen:2024-06-15 00:23:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:gAHnh+eWsN3skA4RV1Hom2KXMmHa2pQDQG4aoZcXlj5:Xh+ZkldoPK8Ya2GfRacXv
TLSH T15F35BE0273D1C036FFABA2739B6AB60156BD79254133852F13981DB9BD701B2263E763
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 threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
393
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0.exe
Verdict:
Malicious activity
Analysis date:
2024-06-15 00:02:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/19bc4a0e-8660-455c-9232-7a95ab7fc19a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject5.5804.4193.29873.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666cdbbc0f85a8479dc7ae18win7simulatehigh_evasion
Tags:
Encryption Execution Generic Network Inject
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
DNS request
Connection attempt
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser 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/666cd9bfea679c2da9185e3d/reports/bd7c75f1-823d-4854-9f30-9a25799140ed/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1024014a-3aab-45c9-b630-db8b60672ce6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1457661
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1457661 Sample: Swift Copy.exe Startdate: 15/06/2024 Architecture: WINDOWS Score: 100 38 www.thewhitehorsepub.biz 2->38 40 www.novaprivatecare.com 2->40 42 6 other IPs or domains 2->42 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 8 other signatures 2->56 11 Swift Copy.exe 4 2->11         started        signatures3 process4 signatures5 66 Binary is likely a compiled AutoIt script file 11->66 68 Writes to foreign memory regions 11->68 70 Maps a DLL or memory area into another process 11->70 14 svchost.exe 11->14         started        process6 signatures7 76 Modifies the context of a thread in another process (thread injection) 14->76 78 Maps a DLL or memory area into another process 14->78 80 Sample uses process hollowing technique 14->80 82 3 other signatures 14->82 17 explorer.exe 22 1 14->17 injected process8 dnsIp9 34 www.fashionchc.com 188.114.96.3, 49737, 80 CLOUDFLARENETUS European Union 17->34 36 webproxy-production.b12.io 3.95.92.192, 49739, 80 AMAZON-AESUS United States 17->36 48 System process connects to network (likely due to code injection or exploit) 17->48 21 colorcpl.exe 17->21         started        24 WerFault.exe 21 17->24         started        signatures10 process11 signatures12 58 Modifies the context of a thread in another process (thread injection) 21->58 60 Maps a DLL or memory area into another process 21->60 62 Tries to detect virtualization through RDTSC time measurements 21->62 64 Switches to a custom stack to bypass stack traces 21->64 26 explorer.exe 27 149 21->26         started        30 cmd.exe 1 21->30         started        process13 dnsIp14 44 www.thewhitehorsepub.biz 188.114.97.3, 49751, 80 CLOUDFLARENETUS European Union 26->44 46 www.imingchu.com 155.159.119.238, 49774, 80 CLAYERLIMITED-AS-APClayerLimitedHK South Africa 26->46 72 System process connects to network (likely due to code injection or exploit) 26->72 74 Query firmware table information (likely to detect VMs) 26->74 32 conhost.exe 30->32         started        signatures15 process16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0/
Threat name:
Win32.Trojan.Generic
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Status:
Malicious
First seen:
2024-06-14 09:20:52 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
24 of 38 (63.16%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jpeh7p7byw6cf5fqakucthmmurvys6gofsslnxno2ujdicmuncqa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:ss63 rat spyware stealer trojan
Link:
https://tria.ge/reports/240615-aawhhsvhlm/
Behaviour
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
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
5c0c06ac175d21f88af69aca524fb5f86cd8a8cd01ad94933a6c1dbf94b9f2f8
MD5 hash:
0de934cb70c6e2d82520c2f368ed8fd3
SHA1 hash:
5586500bac98ceebaecadcb73c95db6e1d2a3190
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/4df6f033-d07e-40e1-b7b4-69cda3132518/
Parent samples :
bcc5a9772d5c0d2a0db971eff31f5a0e6feccdd6cb8defccbea6f00b5967cf38
a978a120fdea37cae47ca6c69f77ff102bf5386fd6f3d0c7c9161d39bc6e5e8c
af38529f4fb8ac8bac4292c9f1ddc302cc48d26441de843ac670e0e77954ec7a
d67c467e851c6f18a79386dbbae7049d07c9c6381a98d141638eef7d83106373
206f17d8a641d884bba4bf29413d8c11ececdc220a22777455b23f1cad77dd9d
4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0
SH256 hash:
4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0
MD5 hash:
db70135e8dbccf549d724c7c78506a10
SHA1 hash:
e03021cd4c55f6a3df845611dcafcb9310453c62
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/4df6f033-d07e-40e1-b7b4-69cda3132518/
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/4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0

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:DebuggerException__SetConsoleCtrl
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:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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: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: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_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
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 4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0

(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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