MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cc21e10bb6b9d996f05937c70cba3ef5c72fe916c4f8969c01d1e2c9c7fb07d. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4cc21e10bb6b9d996f05937c70cba3ef5c72fe916c4f8969c01d1e2c9c7fb07d
SHA3-384 hash: 6945828ce5e200b3f049c5967d312e927c01197c57b0750edea1720ea15ee2a0a5e3ce58bed64e3d750fc2376896bb04
SHA1 hash: f74e2e8340f0181150d7518999b16d4f08473267
MD5 hash: f07e9bbe8da7a7cdaa913c135135c79c
humanhash: glucose-king-mango-september
File name:PO#86637.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'530'880 bytes
First seen:2025-02-14 18:50:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:OAHnh+eWsN3skA4RV1Hom2KXMmHaLthteR9CrDSeB40AiyFfN5:5h+ZkldoPK8YajAR9S+eB/BKf
TLSH T1A165CF0277E5C026FFA792734FA5F326867C6E241827861F17943DACBD706A02A6D253
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
File icon (PE):PE icon
dhash icon 0cacc0c4b0944c10 (53 x Formbook, 1 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
463
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO#86637.exe
Verdict:
Malicious activity
Analysis date:
2025-02-14 19:59:06 UTC
Tags:
autoit
Link:
https://app.any.run/tasks/23b65e44-b310-415c-b72c-6915fac7ad90

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67af90f128ab76d43a5aedf3
Tags:
n/a
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 obfuscated phishing
Link:
https://www.filescan.io/uploads/67af908f633d7333628877a4/reports/c7631279-7f1f-4698-a915-b76ea4960cb9/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4cc21e10bb6b9d996f05937c70cba3ef5c72fe916c4f8969c01d1e2c9c7fb07d
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:
Malicious
Link:
https://analyze.intezer.com/analyses/89dcd37b-de72-4c86-875c-3633e8a6b544
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1615358
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
Joe Sandbox ML detected suspicious 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
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1615358 Sample: PO#86637.exe Startdate: 14/02/2025 Architecture: WINDOWS Score: 100 28 www.syvra.xyz 2->28 30 www.zhuoyueapp.top 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 PO#86637.exe 4 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 28->48 process4 signatures5 62 Binary is likely a compiled AutoIt script file 10->62 64 Writes to foreign memory regions 10->64 66 Maps a DLL or memory area into another process 10->66 68 Switches to a custom stack to bypass stack traces 10->68 13 svchost.exe 10->13         started        process6 signatures7 70 Maps a DLL or memory area into another process 13->70 16 0ZEIGiwEF.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 at.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 0ZEIGiwEF.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 easyanalytics.site 162.241.226.190, 49990, 49991, 49992 UNIFIEDLAYER-AS-1US United States 22->34 36 kalomor.top 91.215.85.23, 49994, 49995, 49996 PINDC-ASRU Russian Federation 22->36 38 8 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/4cc21e10bb6b9d996f05937c70cba3ef5c72fe916c4f8969c01d1e2c9c7fb07d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4cc21e10bb6b9d996f05937c70cba3ef5c72fe916c4f8969c01d1e2c9c7fb07d/
Threat name:
Win32.Backdoor.Formbooks
Create hunting rule
Status:
Malicious
First seen:
2024-09-02 13:01:40 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
23 of 37 (62.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jtbb4ef3noozs3yfsn6hbs5d55ohf7urnrhys2oadupczhd7wb6q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery
Link:
https://tria.ge/reports/250214-xg3lqsxlas/
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
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Downloads MZ/PE file
Verdict:
Malicious
Tags:
trojan
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/3e614859-70ba-4837-b17b-96944480fdd9
Unpacked files
SH256 hash:
4cc21e10bb6b9d996f05937c70cba3ef5c72fe916c4f8969c01d1e2c9c7fb07d
MD5 hash:
f07e9bbe8da7a7cdaa913c135135c79c
SHA1 hash:
f74e2e8340f0181150d7518999b16d4f08473267
Link:
https://www.unpac.me/results/ebd0b576-a5aa-485f-a563-c918ffe89e1c/
SH256 hash:
f073c47484a5c2fb77f4198de069b4ee8c73dafd102d7a5c2d37da819412c7e4
MD5 hash:
ca239f3c3f0b3660e18b1f247fefdcdc
SHA1 hash:
9d591c126746b726f8c2486cfbc6aa8dae3f5031
Link:
https://www.unpac.me/results/ebd0b576-a5aa-485f-a563-c918ffe89e1c/
SH256 hash:
bd37ce88195fc1c46c6286a6179d299dc8fc053387b2838aac97293a16f87d55
MD5 hash:
494903e84221d7bf502833b5f2768a3e
SHA1 hash:
8489f8e9b1864007d065c817138f688604e3f5c5
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/ebd0b576-a5aa-485f-a563-c918ffe89e1c/
Parent samples :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:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4cc21e10bb6b/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/4cc21e10bb6b9d996f05937c70cba3ef5c72fe916c4f8969c01d1e2c9c7fb07d

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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.

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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