MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb395d29f36dac3e08f53b91801cda518fb25f56f291032fcebcf66d13cf13b7. 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 21 File information Comments

SHA256 hash: cb395d29f36dac3e08f53b91801cda518fb25f56f291032fcebcf66d13cf13b7
SHA3-384 hash: 59a779d2b1bff1fdba9bb76f763d2c20c926f547068f27237e110c14ff0f9c02bc80ec8b341a8421900965e704a0ff6b
SHA1 hash: 7fdd3b2e04319bde4236490cc0e8cccf9760d572
MD5 hash: f21e21ffeef966f98efe16a4d967bd33
humanhash: mike-equal-lithium-monkey
File name:z113916DOCUMENT.exe
Download: download sample
Signature Formbook
File size:1'172'992 bytes
First seen:2025-05-02 09:00:08 UTC
Last seen:2025-05-02 09:27:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:ztb20pkaCqT5TBWgNQ7aPtzK++F4VWHEQVEQtt6A:wVg5tQ7aPtzJhc5
TLSH T15145C01363DE8361C3725273BA257701AEBF782506A5F96B2FD8093DF920122525EB73
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter FXOLabs
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
552
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z113916DOCUMENT.exe
Verdict:
No threats detected
Analysis date:
2025-05-02 09:07:11 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
autoit emotet
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:
adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc packed packed packer_detected
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
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
Queues an APC in another process (thread injection)
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1679741 Sample: z113916DOCUMENT.exe Startdate: 02/05/2025 Architecture: WINDOWS Score: 100 32 www.joyesi.xyz 2->32 34 www.techchains.info 2->34 36 17 other IPs or domains 2->36 46 Suricata IDS alerts for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 54 3 other signatures 2->54 10 z113916DOCUMENT.exe 2 2->10         started        signatures3 52 Performs DNS queries to domains with low reputation 32->52 process4 signatures5 64 Binary is likely a compiled AutoIt script file 10->64 66 Writes to foreign memory regions 10->66 68 Maps a DLL or memory area into another process 10->68 70 Switches to a custom stack to bypass stack traces 10->70 13 svchost.exe 10->13         started        16 MpCmdRun.exe 2 10->16         started        process6 signatures7 74 Maps a DLL or memory area into another process 13->74 18 tKxskUiUD9gJ7GOj1.exe 13->18 injected 21 conhost.exe 16->21         started        process8 signatures9 44 Found direct / indirect Syscall (likely to bypass EDR) 18->44 23 netbtugc.exe 13 18->23         started        process10 signatures11 56 Tries to steal Mail credentials (via file / registry access) 23->56 58 Tries to harvest and steal browser information (history, passwords, etc) 23->58 60 Modifies the context of a thread in another process (thread injection) 23->60 62 3 other signatures 23->62 26 tKxskUiUD9gJ7GOj1.exe 23->26 injected 30 firefox.exe 23->30         started        process12 dnsIp13 38 www.rssnewscast.com 91.195.240.94, 49697, 49698, 49699 SEDO-ASDE Germany 26->38 40 elettrosistemista.zip 195.110.124.133, 49705, 49706, 49707 REGISTER-ASIT Italy 26->40 42 4 other IPs or domains 26->42 72 Found direct / indirect Syscall (likely to bypass EDR) 26->72 signatures14
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-05-02 04:13:31 UTC
File Type:
PE (Exe)
Extracted files:
23
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_036 autoit
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
cb395d29f36dac3e08f53b91801cda518fb25f56f291032fcebcf66d13cf13b7
MD5 hash:
f21e21ffeef966f98efe16a4d967bd33
SHA1 hash:
7fdd3b2e04319bde4236490cc0e8cccf9760d572
SH256 hash:
2548697408ccdba100e4f2d8db6b90083efbb425597633be05087d29e168776a
MD5 hash:
fdabbfed573ffed3a7b4f82c0d065db8
SHA1 hash:
0050dbdb5b8bee906544f00db5dadd877ba743d5
SH256 hash:
a9ca8af92489cd970cae6bc8cc0187931e3045f9cd0648645b39c834db1cd299
MD5 hash:
c9a40df177c5b4fe4b8a43b2da13dd08
SHA1 hash:
430c9d70940c8d04ce1351745e39c8544addc8fe
SH256 hash:
5f794128801b768d98c7c6bcd9983f20eff60e37678f49f02771712681fdb312
MD5 hash:
f48f1f81f09e208a06769c4d6469750e
SHA1 hash:
928664a9d935b396a76d2e6c698b878263f96fee
SH256 hash:
3f879924330e4c917e9ec6058f746a1b91312498b295394f8c51e9e6f29a62bd
MD5 hash:
bface04ff4789d0dac2d98685e4b6246
SHA1 hash:
af1a9bd5afa23003ac02f4ae34dd22685c414f41
SH256 hash:
ddebd2f764aa36116e1e254dabac33b2d0bddc5ff0dc4c8fc190204609ad906d
MD5 hash:
c1244811e905e51aa45cb54b5d7b8893
SHA1 hash:
be6b1d67488756629f43bf7e475637f2fbeb9ed4
SH256 hash:
385c5617711751226aa6321104b8411d5f9c6eba75e1ea094304a2f1f1212fea
MD5 hash:
52a7631869e61bdbf921a2b61acc597d
SHA1 hash:
e1062d6eaf2b220ac44568da7fb8feeb5c558a78
SH256 hash:
95d4e6d867da09d9fb2302ef94d540644204068b149018da9258cc36397ffbd2
MD5 hash:
136616fdb1e67935a6142086452e8eef
SHA1 hash:
c14840db3410d29d1a16822b917dacf1860b98eb
SH256 hash:
9f9fd098bd246d7e73797ad12796d2cac30b6d0f94a6258cb3457a68a76972e2
MD5 hash:
66fffd581133e3c2f5845adc8e0d7917
SHA1 hash:
77f08c24daf55ca331687a44bb4dfe55cde849e1
Detections:
win_formbook_w0 win_formbook_g0 Windows_Trojan_Formbook
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.

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
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
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Generic_Threat_aeaeb5cf
Author:Elastic Security
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_w0
Author:@malgamy12
Rule name:YahLover
Author:Kevin Falcoz
Description:YahLover

File information


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

Malspam

Formbook

Executable exe cb395d29f36dac3e08f53b91801cda518fb25f56f291032fcebcf66d13cf13b7

(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::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
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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