MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987
SHA3-384 hash: 99f7988bca3bc01404adfa62a2b78ce3d03168cad089cd613118da5bcc847965347b25884e19c6455694e359e448f42d
SHA1 hash: 849c9832e654e4a8fe725907e1eb7f93e10cf71e
MD5 hash: 95d61c0de1faa96d30dddf4a1fba699c
humanhash: november-purple-friend-october
File name:3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987
Download: download sample
Signature Formbook
Create hunting rule
File size:1'298'432 bytes
First seen:2024-09-05 12:50:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:AqDEvCTbMWu7rQYlBQcBiT6rprG8a39LJKrCVXpk9OKTLq:ATvC/MTQYxsWR7a39L8rCVXk
Threatray 3'172 similar samples on MalwareBazaar
TLSH T16555C00273C1D062FF9B92334B5AF7515ABC69260123EA2F13A81D79BD701B1563E7A3
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
384
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987
Verdict:
No threats detected
Analysis date:
2024-09-05 12:45:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ea8bc895-9478-40fb-be09-a11399c4d2f7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Generic.33203615.28472.17882.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d9a93bf3d7ccf99f901541
Tags:
Autoit
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/66d9a93ae19c06a3e691cbc6/reports/38cae23c-1859-4e64-acd9-9ce78d50b3b9/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987
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/9cadd82e-a193-46e4-9911-caad0dc6e3c6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1504879
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Found API chain indicative of sandbox detection
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 submitted file
Performs DNS queries to domains with low reputation
Queries Google from non browser process on port 80
Queues an APC in another process (thread injection)
Sigma detected: Uncommon Userinit Child Process
Suricata IDS alerts 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: 1504879 Sample: RBNB5FNsEZ.exe Startdate: 05/09/2024 Architecture: WINDOWS Score: 100 28 www.joltup.xyz 2->28 30 www.haberida.xyz 2->30 32 20 other IPs or domains 2->32 42 Suricata IDS alerts for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 50 7 other signatures 2->50 10 RBNB5FNsEZ.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 Found API chain indicative of sandbox detection 10->64 66 Writes to foreign memory regions 10->66 68 2 other signatures 10->68 13 svchost.exe 10->13         started        process6 signatures7 70 Maps a DLL or memory area into another process 13->70 16 akyKlTKurLYAx.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 userinit.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 akyKlTKurLYAx.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.joltup.xyz 203.161.41.190, 49746, 49747, 49748 VNPT-AS-VNVNPTCorpVN Malaysia 22->34 36 www.rtpmaxwin.fyi 150.239.200.200, 49754, 49755, 49756 SOFTLAYERUS United States 22->36 38 11 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/3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-08-27 02:25:33 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hazxrdxa7mufco7q2qjmhy2tzlzxpsc5yo6ijotfnjpcan4z7gdq._file
Verdict:
malicious
Similar samples:
3ed356b88af2907fcad812a2ca7fb093f31d6f14e5e54889215a60d913627f8a
Formbook
719b90e90ec80dc97228c3bf8116c9a45fd3636a93e4d0c6917fb8de7f719ef8
Formbook
759b8eeb19d732283ec91e12f01836653eb69f384fb2cab4072e67dcac4748ef
Formbook
7946865787ec14985dbeb9fd9b08f426a2aabe834e5110b9f22f3c6dcede79b2
Formbook
9afa3f639b13409cc496e135540e16f546b1eb447bce1a007ad34a04c5b057a7
Formbook
b570b4c535ada09737a77902127a03fe3b01b108651325538fab2911e7d8ef83
Formbook
+ 3'162 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/240905-p3gx6a1dmj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ce2f9f4d-b36a-4f7f-8697-3896b235c1ea
Unpacked files
SH256 hash:
c774b4ee715f15d59555754fe5d86bc81b4c71b0339526090cb794e41ade2bc2
MD5 hash:
a057676b87deb143cfee7a63766754ab
SHA1 hash:
9aaa8b5291fe60f7f715ea3a9b2ab4ce411b3eaa
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Link:
https://www.unpac.me/results/789d4bb2-7a85-47c0-8adb-27df6b17bc1b/
Parent samples :
ce3d4c25a1306641269e95cccc331f6cf019fe6819eddfc7badbb923ed91093f
ae7d55977f010445b83b1eb544c65afe7cbd14e49ce0e47ea9939c7f010f214e
3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987
SH256 hash:
5ebe3bf439b2516297c40428c30058aed03cdb39ed87d67b682ef0089c15b2f4
MD5 hash:
ccf153cdaf9b124ec545348203727bc8
SHA1 hash:
df2940bdaa74ab79b4e8ab44d0cde12ec91768fe
Link:
https://www.unpac.me/results/789d4bb2-7a85-47c0-8adb-27df6b17bc1b/
SH256 hash:
3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987
MD5 hash:
95d61c0de1faa96d30dddf4a1fba699c
SHA1 hash:
849c9832e654e4a8fe725907e1eb7f93e10cf71e
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/789d4bb2-7a85-47c0-8adb-27df6b17bc1b/
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/3833788ee0fb28513bf0d412c3e353caf377c85dc3bc84ba656a5e203799f987

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_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_detect_tls_callbacks
Create hunting rule

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::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
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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