MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944
SHA3-384 hash: 9c91c8c36ed432271f6bafa896ddeb8e05b4e6006855da0b7a8169bd420e060550dab0c593427116cb42c6d853a9652e
SHA1 hash: d295c1a9523f51c9a119bacc8fcd6347f2527997
MD5 hash: 4b6d902ec901f0ab74a9867de245627e
humanhash: pizza-seven-mars-virginia
File name:37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944
Download: download sample
Signature Formbook
Create hunting rule
File size:1'197'056 bytes
First seen:2025-04-08 08:58:05 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:fu6J33O0c+JY5UZ+XC0kGso6Fa/U/VOn5B0/P6kNeIAKyLX4WY:pu0c++OCvkGs9Fa/U/VOfExNDAfHY
Threatray 208 similar samples on MalwareBazaar
TLSH T1ED45CF22B3DDC360CB669173BF69B7016EBF7C610630B95B2F880D7DA950162162D7A3
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
413
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944
Verdict:
No threats detected
Analysis date:
2025-04-08 16:36:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6f8e5f4e-9623-469e-8544-8c88ca6b7ba8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f4e699e011fe619fad2e36
Tags:
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 anti-debug autoit compiled-script evasive explorer fingerprint hacktool keylogger lolbin microsoft_visual_cc msiexec packed packed packer_detected regsvr32
Link:
https://www.filescan.io/uploads/67f4e52a9a4559029115470b/reports/b1ffcad5-0167-49c1-badf-51b32e8b6762/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/133d799e-7a0b-45b7-afbe-9d0735a70292
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1659219
Signature
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
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
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 1659219 Sample: e5sRg19b6c.exe Startdate: 08/04/2025 Architecture: WINDOWS Score: 100 28 thrustaviation.info 2->28 30 www.worrr19.sbs 2->30 32 4 other IPs or domains 2->32 42 Suricata IDS alerts for network traffic 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected FormBook 2->46 48 Binary is likely a compiled AutoIt script file 2->48 10 e5sRg19b6c.exe 2 2->10         started        signatures3 process4 signatures5 60 Binary is likely a compiled AutoIt script file 10->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->62 64 Writes to foreign memory regions 10->64 66 2 other signatures 10->66 13 svchost.exe 10->13         started        process6 signatures7 68 Maps a DLL or memory area into another process 13->68 16 w70ywgzD1EdDN.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 grpconv.exe 13 16->19         started        process10 signatures11 50 Tries to steal Mail credentials (via file / registry access) 19->50 52 Tries to harvest and steal browser information (history, passwords, etc) 19->52 54 Modifies the context of a thread in another process (thread injection) 19->54 56 3 other signatures 19->56 22 w70ywgzD1EdDN.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 thrustaviation.info 3.33.130.190, 49704, 49705, 49706 AMAZONEXPANSIONGB United States 22->34 36 www.worrr19.sbs 168.76.121.210, 49700, 49701, 49702 ULTRANETSERVICOSEMINTERNETLTDABR South Africa 22->36 38 www.51-cg.store 129.154.217.229, 49696, 49697, 49698 NETDYNAMICSUS United States 22->38 58 Found direct / indirect Syscall (likely to bypass EDR) 22->58 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-03-28 03:39:15 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g7elgg7lpuahdr6bx73zpfclyq35e7zy5mzdjszehfjqt7jhffca._file
Verdict:
malicious
Label(s):
unc_loader_036
Create hunting rule
formbook
Create hunting rule
Similar samples:
08eb95d4ddcdc2c37c2da03af88b5ccd0b6d120e8eb1886f984a157ef724abbc
Formbook
0c02b768cbe0e794f48e074236c2c6ce2dae3ad477d1e5bf61abf361d86079f1
Formbook
2c4810b0663991108319cb5e0ee2215b7a90d8b0411c0bd4051b6bd6591c925c
Formbook
37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944
Formbook
509698948ba183207bb9487c3e0a6164ea1c4658aa58b0af1cf3e246e15a8c62
Formbook
5e5fda4d1ed74305f7169f102d2d9edcff3987946520d1a50427f6001c36623b
Formbook
a6a0b2a51dbee2c78e4ae0dc19f4cef988aaa73764efe03e65b5ab62a33d272d
Formbook
c6873a666cabbaa8cd1ec7c07bda2449e92f2c5a327d7ccaa35b00722b4e6614
Formbook
cc9466116928990ca27627947bf03b92d6bbf4f9bb7d2e5fb005a7a3be041159
Formbook
error
Formbook
+ 198 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250408-kxb3hasmz9/
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/03df37b8-e99b-4a5d-ae1d-160b92c1a6c3
Unpacked files
SH256 hash:
37c8b31beb7d0071c7c1bff797944bc437d27f38eb3234cb24395309fd272944
MD5 hash:
4b6d902ec901f0ab74a9867de245627e
SHA1 hash:
d295c1a9523f51c9a119bacc8fcd6347f2527997
Link:
https://www.unpac.me/results/5c5a334b-d6be-40e9-bcc0-96ee45e706ff/
SH256 hash:
626bbffd66e662907f002781115bd373640e2a8c711b3cc7a909d58e1bb7e134
MD5 hash:
6172914970893ba4cf23e9ba03f31649
SHA1 hash:
568004498d0fee717024314f9c78a6784b139589
Link:
https://www.unpac.me/results/5c5a334b-d6be-40e9-bcc0-96ee45e706ff/
SH256 hash:
9d413e231dfe9f4edd5fa9c1c23caa53b394ca58de47808dc11defa875c733ef
MD5 hash:
3d314f6ff54ab47451b313af95bfb98f
SHA1 hash:
5b870f5e6aec45d22d5feccc2e1a03805d8d9eb1
Link:
https://www.unpac.me/results/5c5a334b-d6be-40e9-bcc0-96ee45e706ff/
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
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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.

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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