MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e
SHA3-384 hash: a1cecce8fa6d7a373368890dd1f93ecfed97b46afd8b67902b303683b9ecbb531f2af98237cdf25da18818d18f178b07
SHA1 hash: 09fc9e105915b3fb67b35125abfd6bf3cf285a41
MD5 hash: 7f0a1e36661daae7158c1fe4817575b5
humanhash: yellow-football-artist-don
File name:ftrrrttyt.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'213'952 bytes
First seen:2024-06-11 08:58:45 UTC
Last seen:2024-06-11 09:29:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:JAHnh+eWsN3skA4RV1Hom2KXMmHatIdClr/npwXCZ8Xk3ih5:Qh+ZkldoPK8YatId4rxwXw2kY
Threatray 1 similar samples on MalwareBazaar
TLSH T1F045BE0273D6D036FFAB92739B69B20196BD7D250133852F13982DB9BD701B1227E663
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
File icon (PE):PE icon
dhash icon 61424201465d7838 (5 x Formbook, 1 x RedLineStealer, 1 x VenomRAT)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
342
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e.exe
Verdict:
Malicious activity
Analysis date:
2024-06-11 09:03:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/664fbce1-0ad2-4642-a0de-a1632e6302ee

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.73092714.15607.31787.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6668125e5c0e232c1ff0452cwin7simulatehigh_evasion
Tags:
Encryption Network Inject
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:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/666811e00bf5978c0b0e4680/reports/7955bb12-20bb-4d0d-b985-f1523d8e5b6d/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e
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/0cceabc8-7ba8-46f0-916f-d2c426d75007
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1455035
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Machine Learning detection for 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)
Snort IDS alert 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: 1455035 Sample: ftrrrttyt.exe Startdate: 11/06/2024 Architecture: WINDOWS Score: 100 28 www.timelesszone.xyz 2->28 30 www.qdfake525pm.xyz 2->30 32 22 other IPs or domains 2->32 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 50 4 other signatures 2->50 10 ftrrrttyt.exe 4 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 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 klgmdCrdObNgfFebdUtF.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 Robocopy.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 klgmdCrdObNgfFebdUtF.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.timelesszone.xyz 203.161.55.102, 55705, 55706, 55707 VNPT-AS-VNVNPTCorpVN Malaysia 22->34 36 www.mysmartbadge.com.cdn.hstgr.net 91.108.98.61, 49707, 80 THREENETASNO Germany 22->36 38 9 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/15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-06-10 08:45:20 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cwcw7kycna5ptdak3az4cloiakzywkq425ffnty7ghpdfhunxnpa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
d0b94b855d2f24add1edf6b3a6ecae24e4366f181a1ccd0bcd3b27e94de95bc0
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240611-kxq7essanl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
AutoIT Executable
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/17ae4dd7-3333-4d57-a763-5d0ce7f2dbf6
Unpacked files
SH256 hash:
c2bc75d8f195c530e98a0bc034524b37397fc4563b0116fb215a2a2faf7f514c
MD5 hash:
e62428475e67f4a33961c24d5d4ed47e
SHA1 hash:
788fc1bd7b946e2dfd91ad44dcb2687bf167d588
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
16c5f926c7ac1c3a1e5f203a02fa3928901c94eeb8ac4adf5c7b1ccf47c0391f
MD5 hash:
0f881f47aee1a969e6501bd27db61efa
SHA1 hash:
38a3ffdb18444ea77f7599b047e39e5822dc34e2
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
636dc495a824a9b18a3981e3f63874584c6bbd4ba0010d0d15cde0798af80265
MD5 hash:
15ff4dbb8045715ba56f1d5ed33069aa
SHA1 hash:
9b13c247587cc8060cb0f79159f32c1bcd4f8258
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
76556b4ada80ebdec3022bc7b42e85f5a90ba56b5bf5acededf4a2caa5a5b4e0
MD5 hash:
09d77e3463a8fc3078cdaaaad4df879c
SHA1 hash:
60c5376a0ef6af0130528c60829da7121e77b6c6
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
6e45d02a6eac00b036e7f3ea233c718adc7029a3055801602f66a78761216a6a
MD5 hash:
0018195648d06a4fc55f3d0585cb5f48
SHA1 hash:
4d10b6616a46cef079511919137058542b7db340
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
8d36282911a3899668f37c327bc201f2ebf984234115580fc1e794eda79d031d
MD5 hash:
a6f8260c6cab7a46b335b6b4f93a1db9
SHA1 hash:
46770ae0e87e61298cbd2882f8b87bb44b156398
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
6be912002f6ce1a8ae8feac329fad6ebe06e72c43ca1319a5ce2d8d8ff6569dc
MD5 hash:
d04dac89db25df05c5cecf6b64ad60bb
SHA1 hash:
2ec9cab7af9ccc68b1189ff9d32746c53d89a7b1
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
b3a9e843ec808f0df076228f551c732f11ece006abb65fb992ef742e2a3b4091
MD5 hash:
09640d8c08a08dc662ccb090ea22ecf5
SHA1 hash:
09cee280e452346246d046acb066190386077c88
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
SH256 hash:
15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e
MD5 hash:
7f0a1e36661daae7158c1fe4817575b5
SHA1 hash:
09fc9e105915b3fb67b35125abfd6bf3cf285a41
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/7f600002-6647-4bb9-8259-be5fbaca40df/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/15856fab0268/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/15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
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: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.

Malspam

Formbook

Executable exe 15856fab02683af98c0ad833c12dc802b38b2a1cd74a56cf1f31de329e8dbb5e

(this sample)

  
Delivery method
Distributed via e-mail attachment

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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