MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a. 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: 16


Intelligence 16 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a
SHA3-384 hash: db5718a75497d2307d33f8e44ceb0eaf75415ea40259a7fd6a9703245fdccfc421bb1704e004637430091b27179825bf
SHA1 hash: 2e04c616df7d144a0a60ad0f70d081558ba1ba37
MD5 hash: 7c271bc18cc5f329a2c892a6ed12634c
humanhash: fillet-ceiling-march-charlie
File name:UNPAID INVOICE No. 2025-02-839.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'197'056 bytes
First seen:2025-04-23 13:16:35 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:du6J33O0c+JY5UZ+XC0kGso6FaafxjMLzK4PWY:vu0c++OCvkGs9Faa5KK3Y
TLSH T19545BE2273DDC360CB669133BF6AB7056EBF7C614630B85B2F880D7DA950161262D7A3
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
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 :
1
# of downloads :
454
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
UNPAID INVOICE No. 2025-02-839.exe
Verdict:
No threats detected
Analysis date:
2025-04-23 13:18:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/820b4a80-bd93-4197-a032-679f0632217f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/3700/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.vh.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6808ea883d067f848398643d
Tags:
nymeria 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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit compiled-script entropy fingerprint keylogger masquerade microsoft_visual_cc packed packed packer_detected
Link:
https://www.filescan.io/uploads/6808e85e9451d80c59f7f0f5/reports/e2add0e3-d8d6-4936-a8af-9c43666e4f14/overview
Verdict:
Malicious
Labled as:
AIT:Trojan.Nymeria
Link:
https://www.hybrid-analysis.com/sample/72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f21e72ca-eb3a-4db3-8899-2c0ff40620f7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1672095
Signature
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
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)
Sigma detected: Suspicious Process Parents
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: 1672095 Sample: UNPAID INVOICE No. 2025-02-... Startdate: 23/04/2025 Architecture: WINDOWS Score: 100 28 www.play-whisper-forge.xyz 2->28 30 www.genericagi.xyz 2->30 32 19 other IPs or domains 2->32 42 Suricata IDS alerts for network traffic 2->42 44 Antivirus detection for URL or domain 2->44 46 Multi AV Scanner detection for submitted file 2->46 50 6 other signatures 2->50 10 UNPAID INVOICE No. 2025-02-839.exe 2 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 Writes to foreign memory regions 10->64 66 Maps a DLL or memory area into another process 10->66 13 svchost.exe 10->13         started        process6 signatures7 68 Maps a DLL or memory area into another process 13->68 16 W9FlXvz3KP.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 bitsadmin.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 W9FlXvz3KP.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 an05-prod-x.cdn-ng.net 43.251.56.161, 49756, 49757, 49758 WSN-TW-NET-ASWorldstarNetworkTW Taiwan; Republic of China (ROC) 22->34 36 www.oflick.site 162.0.225.218, 49740, 49741, 49742 NAMECHEAP-NETUS Canada 22->36 38 10 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/72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-04-23 12:33:35 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ol3ojaixb6nsmzj2bgf5rnmwakyrfojrbaaarkcosuz26hheybna._file
Verdict:
malicious
Label(s):
unc_loader_036
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250423-qjgzgsytdw/
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:
trojan
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/18d2c9d9-66cf-4680-a232-a392f0a84d7b
Unpacked files
SH256 hash:
72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a
MD5 hash:
7c271bc18cc5f329a2c892a6ed12634c
SHA1 hash:
2e04c616df7d144a0a60ad0f70d081558ba1ba37
Link:
https://www.unpac.me/results/522e7f2c-d24e-404c-897b-4bc03a95f5b0/
SH256 hash:
14e2735879c20fe441c970ea726fffb1fdad400f5abe9f5676d24e3a78a27b03
MD5 hash:
3debcfc45fd488e3395014ed0dcbebbc
SHA1 hash:
56899434981d7cc2f222a6ed47e681119886ef1c
Link:
https://www.unpac.me/results/522e7f2c-d24e-404c-897b-4bc03a95f5b0/
SH256 hash:
f4a2a9c8fe89f96d86d697772d010ddf81bc0bf281d968b2a869b9f3f7c56346
MD5 hash:
3a79122fdb01711174e817f74c92e355
SHA1 hash:
5d71af340394cb95909369fb15d91d9b0622047f
Link:
https://www.unpac.me/results/522e7f2c-d24e-404c-897b-4bc03a95f5b0/
SH256 hash:
de000e53d362083ea2cbc23003a7b229d0d2ed8ddbddfc51b893823d7eefbd1a
MD5 hash:
e9a1351b30eda68faa1c66f057ab2905
SHA1 hash:
3590303e29fd936d238f4ed538a65a553160b28b
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/522e7f2c-d24e-404c-897b-4bc03a95f5b0/
Parent samples :
ec5eff6a0284924ca4fd690abf53288859f071656be489b5063ec0c84f0cc3fa
2e9ed12c481281cecee835f3e186a73a87c877006e28352e475ff98f60be8ab7
72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a
8b47e41b2dea3924fcb2fa5ddc3b2d31f5754fee749b5f0b2bd297858af0521e
986c872b85f9b81c792e7e26651a24890b1e191e2b06424f6add41405e81fe8a
5d2614ebe7680070e612547a85691905a88def5e660d1a2ec3a3defc8299c1ec
2cf49d1d038a7fa4756b0b9fcca4334ed29fccd6abbbfc633303332aa87e586a
ada2a850d17b854f620994df37e83d70b9507b9ea65faea6f4bbedbd393be984
4474a96c9a55882a4773013c4b28f6f0b718b7f0fb1a8a3d1761eca6dda67877
3b49db213b7efb1ec7cebb31e3d1f3294be52371093d2533a554487f1a877b1a
f8085cecef65f610706548c4d51d4b875c805be065bd267c93a30f274c766e92
7bc09a12040d7560b5ef41bad37848bf771f86f2e52a79574abde068ec390267
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/72f6e481170f/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/72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a

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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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: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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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.

Malspam

Formbook

Executable exe 72f6e481170f9b26653a098bd8b59602b112b931080008a84e9533af1ce4c05a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/3700/

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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