MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507
SHA3-384 hash: 836e52f8b53c81cefd3a186693e141e7c30f198e7c49f9e8dd9ebf3a5340fdbf6fe0cf34f8efe6de10ba2ba4308fff9e
SHA1 hash: f2145370001924d43416dd6a2063a8a1cce24fdb
MD5 hash: f1d6c6832b129f7ba4c8dee7b6912bcc
humanhash: washington-kansas-orange-table
File name:WayBill_no5301292345.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'262'592 bytes
First seen:2024-08-28 10:14:08 UTC
Last seen:2024-08-29 11:14:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:TqDEvCTbMWu7rQYlBQcBiT6rprG8aQJAhiQ8wOQNOi:TTvC/MTQYxsWR7aQyswBO
Threatray 2'928 similar samples on MalwareBazaar
TLSH T13E45CF0273D1C062FFAB92734B5AF6115BBC69260123E61F13981DB9BE701B1563E7A3
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 James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
362
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
WayBill_no5301292345.exe
Verdict:
No threats detected
Analysis date:
2024-08-28 10:16:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e6c5972a-d48f-4b77-84a7-a079fa1cc598

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=66cec7e8fe69a9e56049a41f
Tags:
Agent
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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 masquerade microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/66cef8abeb26ed7f73c55417/reports/06173cdd-d773-491c-a6b5-a5bc6f60aa3b/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507
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/09ce23d9-f486-4484-b53f-5abe8d0859c9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1500399
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-08-28 05:08:51 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=utejwk5b2o6ogtrifuuebqeqdqgacpzjerl2uz47eiq6f36lqudq._file
Verdict:
unknown
Similar samples:
3ed356b88af2907fcad812a2ca7fb093f31d6f14e5e54889215a60d913627f8a
Formbook
719b90e90ec80dc97228c3bf8116c9a45fd3636a93e4d0c6917fb8de7f719ef8
Formbook
759b8eeb19d732283ec91e12f01836653eb69f384fb2cab4072e67dcac4748ef
Formbook
7946865787ec14985dbeb9fd9b08f426a2aabe834e5110b9f22f3c6dcede79b2
Formbook
9afa3f639b13409cc496e135540e16f546b1eb447bce1a007ad34a04c5b057a7
Formbook
b570b4c535ada09737a77902127a03fe3b01b108651325538fab2911e7d8ef83
Formbook
+ 2'918 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/240828-l98gxavalg/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4cf0747c-f15c-4fd5-8e8e-7ee102b1abbd
Unpacked files
SH256 hash:
fe540532b1374da2f60bd7da05fe37662a73b84213225d71e2a058cb7596074b
MD5 hash:
7b0b594865444647c1a148f3518e4e48
SHA1 hash:
ae5a3c268234c82b5036813337c3ecddc5c0cc8f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Link:
https://www.unpac.me/results/619e365c-c00a-4f2f-be39-fe771db8ce78/
Parent samples :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 hash:
e6429d9da028e8fce080b7d1fba4cb058ecbf20f499852f13637d3a52b53df80
MD5 hash:
9093c20d6bc318a10a22a8b3cb106f9d
SHA1 hash:
f350d27301dd2f4a8e2f39224d4c4f038af21279
Link:
https://www.unpac.me/results/619e365c-c00a-4f2f-be39-fe771db8ce78/
SH256 hash:
a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507
MD5 hash:
f1d6c6832b129f7ba4c8dee7b6912bcc
SHA1 hash:
f2145370001924d43416dd6a2063a8a1cce24fdb
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/619e365c-c00a-4f2f-be39-fe771db8ce78/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4c89b2ba1d3/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/a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507

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: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.

Malspam

Formbook

Executable exe a4c89b2ba1d3bce34e282d2840c0901c0c013f292457aa679f2221e2efcb8507

(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::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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