MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 913647b9246f708c83e0646864154d16a4a6e8b7970b932503e7c724055e0223. 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 7 File information Comments

SHA256 hash: 913647b9246f708c83e0646864154d16a4a6e8b7970b932503e7c724055e0223
SHA3-384 hash: 62372628cd3636baf3aa7e6d91b07c590f699801cae97f2c2e06f0e5f1e7e67b27f33a9526da6942ea7c01adb7e474df
SHA1 hash: 3c18a2a5a03f42f9e9994d84a92b0048078f5b5d
MD5 hash: 5b217191055332ec63f5aac1784b8605
humanhash: video-finch-lemon-louisiana
File name:COTIZACION.exe
Download: download sample
Signature Formbook
File size:1'521'152 bytes
First seen:2025-02-14 18:49:29 UTC
Last seen:2025-03-07 14:05:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:bAHnh+eWsN3skA4RV1Hom2KXFmIaCthtetDEn5riU7Aaxg/MI5:2h+ZkldoPK1Xa8AtCAvf
TLSH T1B465CF0277E1C026FFA792734FA5F32556BC6E641827861F17983DACBD707B02A2D252
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 :
2
# of downloads :
449
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
COTIZACION.exe
Verdict:
Malicious activity
Analysis date:
2025-02-14 20:06:34 UTC
Tags:
autoit

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
autoit emotet
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:
adaptive-context autoit compiled-script cybergate fingerprint keylogger microsoft_visual_cc obfuscated
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
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 whoami command line tool to query computer and username
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1615361 Sample: COTIZACION.exe Startdate: 14/02/2025 Architecture: WINDOWS Score: 100 28 www.l51127.xyz 2->28 30 www.tyxxg.net 2->30 32 2 other IPs or domains 2->32 44 Suricata IDS alerts for network traffic 2->44 46 Antivirus detection for URL or domain 2->46 48 Multi AV Scanner detection for submitted file 2->48 52 4 other signatures 2->52 10 COTIZACION.exe 4 2->10         started        signatures3 50 Performs DNS queries to domains with low reputation 28->50 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        process6 signatures7 72 Maps a DLL or memory area into another process 13->72 16 dNsycvLe7cdPsjG2.exe 13->16 injected process8 signatures9 40 Uses whoami command line tool to query computer and username 16->40 42 Found direct / indirect Syscall (likely to bypass EDR) 16->42 19 whoami.exe 13 16->19         started        process10 signatures11 54 Tries to steal Mail credentials (via file / registry access) 19->54 56 Tries to harvest and steal browser information (history, passwords, etc) 19->56 58 Modifies the context of a thread in another process (thread injection) 19->58 60 3 other signatures 19->60 22 dNsycvLe7cdPsjG2.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.banjia0731.icu 45.199.72.207, 49981, 49982, 49983 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 22->34 36 www.tyxxg.net 38.11.157.207, 49976, 80 COGENT-174US United States 22->36 38 2 other IPs or domains 22->38 62 Found direct / indirect Syscall (likely to bypass EDR) 22->62 signatures14
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-02-10 15:01:50 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unknown_loader_036 formbook
Similar samples:
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery
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
Unpacked files
SH256 hash:
913647b9246f708c83e0646864154d16a4a6e8b7970b932503e7c724055e0223
MD5 hash:
5b217191055332ec63f5aac1784b8605
SHA1 hash:
3c18a2a5a03f42f9e9994d84a92b0048078f5b5d
SH256 hash:
2feed1616676324563e3beb0ebec3186f251d044febca53b9f47dc59ea77cd06
MD5 hash:
9d3b55a678dbb13f893106b66e0899e4
SHA1 hash:
284ab40bfe115d3982538f4d647eae228b8aebd1
SH256 hash:
3413f975c669efb01d8dee7421eaefc40f54e8a8a35591c0577537db685927e4
MD5 hash:
774b848a9747f54e788f388f6cd9a4d4
SHA1 hash:
1177b533b3c60dc61a075984c5d7923adf21c31d
SH256 hash:
e176799a50bff9f1ffc67f607799ad80cb4b5533b9647b2ee34855c7ba6e2f62
MD5 hash:
160c19d1e28b511a25ccb522921c765d
SHA1 hash:
3892899960eec131fe1f984e78ab8c1520f97a05
Detections:
win_formbook_g0
Please 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:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_Imphash_Mar23_3
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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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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