MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a
SHA3-384 hash: 4d2ec6b870f4c510ad77584909a61aeffd1391b294d7c3a9e6087d6dc066ae541dc19c87454d6737fe6600c3934632fd
SHA1 hash: ca1acb7362ed6f77cc0ed8df8cd81b9b2da9f246
MD5 hash: adf0f9c5a51b00e8d788332183365288
humanhash: sweet-saturn-violet-lamp
File name:Transferencia 6997900002017937.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'189'888 bytes
First seen:2025-03-12 08:28:48 UTC
Last seen:2025-03-12 08:30:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:Uu6J33O0c+JY5UZ+XC0kGso6FaEk/qSsyRRO89tE93CKWY:uu0c++OCvkGs9FaEkD5T9i93WY
TLSH T18C45CF2273DDC360CB669173BF6AB7016EBF7C610630B85B2F880D7DA950162166D7A3
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
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter cocaman
Tags:exe FormBook payment

Intelligence

File Origin
# of uploads :
3
# of downloads :
458
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Transferencia 6997900002017937.7z
Verdict:
No threats detected
Analysis date:
2025-03-12 08:29:36 UTC
Tags:
arch-exec
Link:
https://app.any.run/tasks/f380ec4a-360b-412b-8839-2b79bf20c13d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d14d634fd7d3fd0e087876
Tags:
azorult 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
Link:
https://www.filescan.io/uploads/67d145dc3c5f644bd94ece0f/reports/24c67098-6e9f-4f85-880b-f39f3d935aa4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2be322da-3b41-47fb-b964-99d876006146
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1635985
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)
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1635985 Sample: Transferencia 6997900002017... Startdate: 12/03/2025 Architecture: WINDOWS Score: 100 28 www.shibfestival.xyz 2->28 30 www.seasay.xyz 2->30 32 15 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 Antivirus / Scanner detection for submitted sample 2->46 50 5 other signatures 2->50 10 Transferencia 6997900002017937.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 6tskSK4rGcXjRtb8E.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 msfeedssync.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 6tskSK4rGcXjRtb8E.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.thrivell.life 209.74.64.58, 49731, 49732, 49733 MULTIBAND-NEWHOPEUS United States 22->34 36 www.seasay.xyz 103.106.67.112, 49755, 49756, 49757 VOYAGERNET-AS-APVoyagerInternetLtdNZ New Zealand 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/a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-03-12 02:38:53 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vgh5litznpavl6m4mn75hh7ldztumwsdrcoupbmc6gj25onsnfna._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/250312-kdnl7atmw2/
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
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
trojan
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/a2d934b8-6802-444d-abe2-f5ba33ccffef
Unpacked files
SH256 hash:
a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a
MD5 hash:
adf0f9c5a51b00e8d788332183365288
SHA1 hash:
ca1acb7362ed6f77cc0ed8df8cd81b9b2da9f246
Link:
https://www.unpac.me/results/711e7976-584d-4627-8049-ace56303aaba/
SH256 hash:
8f7b7471cb619e29605e87b7e28b32368643518e2ee99db5037ba551928a3f83
MD5 hash:
e6226b20bc324b523befb413ce1e1cdf
SHA1 hash:
6351526dffb51ba6012f8583e76192f870231e84
Link:
https://www.unpac.me/results/711e7976-584d-4627-8049-ace56303aaba/
SH256 hash:
efa65aa01e8e9c58f3756bd57ad88c9330415661aab971ee104b21fda92553d4
MD5 hash:
3e7177da2b8b9d0c2ba2823683accbc6
SHA1 hash:
830804f144414268dba0df79e7f635a0478b75e3
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/711e7976-584d-4627-8049-ace56303aaba/
Parent samples :
a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a
496defd408d3626ffb93e0adad8bcf1aab25fada382313eafa9c33f1885df2bd
5868740d02c853414ed6277efa98b8549ea42cc2bc9bd8d4b50b773c30e7f417
f1f2ecf673721a4c4ece46d97ed215ecbf72b90a92041a3a9d1d19c67bccf306
e08eb5990f5b866ac3602b2ecaed058c36ce94837fc8c126fe933b5ea3dd16c7
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a98fd5a2796b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a

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

7z c3073cc2c7eeaf91e89574a82519f2b2052fc6a0ea99ac2ab5a80735a00ba66e

Formbook

Executable exe a98fd5a2796bc155f99c637fd39feb1e67465a43889d478582f193aeb9b2695a

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 c3073cc2c7eeaf91e89574a82519f2b2052fc6a0ea99ac2ab5a80735a00ba66e
  
Dropped by
MD5 35342a3d850d9ea2bdb32b8b16939b51

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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