MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 619785d76ee2055a1aca904e2a3e7fb2db9682b99602f7537ab8cd8ade9551da. 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
| SHA256 hash: | 619785d76ee2055a1aca904e2a3e7fb2db9682b99602f7537ab8cd8ade9551da |
|---|---|
| SHA3-384 hash: | 7a93736b0a837315971d1022593cd2375374a0ae3fcc41ee745c91c5063cde4aea02f544e97364a1c19cfce58e2244a1 |
| SHA1 hash: | 9818c55d04a25dc17f43fe0371a73a1261aefcdf |
| MD5 hash: | 347c2e55b52480f82e8f45344fd2a7f8 |
| humanhash: | lemon-sweet-fish-finch |
| File name: | 101 2043 5770 pdf.exe |
| Download: | download sample |
| Signature | FormBook |
| File size: | 2'175'072 bytes |
| First seen: | 2024-09-13 12:33:11 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 5946b66c0c248992121c77a3b48fcbde (6 x Formbook, 2 x MassLogger) |
| ssdeep | 49152:IuAEE6l/kZzz3uBytwA6cYAyhEvFB4W1edYWW2SMO5:XuzUE2W |
| Threatray | 4'099 similar samples on MalwareBazaar |
| TLSH | T1B4A5BE14E3A801A8E467DB34CA659732D6707D525730E58F0A89E6452F73EE2AF7F302 |
| TrID | 47.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 35.2% (.EXE) InstallShield setup (43053/19/16) 8.6% (.EXE) Win64 Executable (generic) (10523/12/4) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1) 1.6% (.EXE) OS/2 Executable (generic) (2029/13) |
| Magika | pebin |
| File icon (PE): |  |
| dhash icon | 7cf6b6aa8ed0e8b4 (18 x Formbook, 3 x SnakeKeylogger, 2 x NanoCore) |
| Reporter |  Racco42 |
| Tags: | exe FormBook signed |
Code Signing Certificate
| Organisation: | Microsoft Code Signing PCA 2011 |
|---|---|
| Issuer: | Microsoft Code Signing PCA 2011 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2024-09-03T12:21:39Z |
| Valid to: | 2025-09-03T12:21:39Z |
| Serial number: | f82767789dc2d71d82f05e42648132fc |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | a1f8b13e3b3ee80d363b44cdfccac86a4b2fd670a38f87c0b715853103757a49 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
393
Origin country :
ITVendor Threat Intelligence
Detection(s):
Verdict:
Malicious
Score:
99.1%
Tags:
Encryption Execution Network Static Stealth Malware
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
fingerprint hacktool lolbin microsoft_visual_cc overlay packed regedit remote shell32
Verdict:
Malicious
Labled as:
Trojan.Generic
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.
Verdict:
Unknown
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
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:
Score:
99%
Verdict:
Malware
File Type:
PE
Detection:
formbook
Threat name:
Win64.Trojan.VenomRAT
Status:
Malicious
First seen:
2024-09-03 15:01:24 UTC
File Type:
PE+ (Exe)
Extracted files:
25
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 4'089 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:n7ak credential_access discovery rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
619785d76ee2055a1aca904e2a3e7fb2db9682b99602f7537ab8cd8ade9551da
MD5 hash:
347c2e55b52480f82e8f45344fd2a7f8
SHA1 hash:
9818c55d04a25dc17f43fe0371a73a1261aefcdf
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__MemoryWorkingSet |
|---|---|
| Author: | Fernando Mercês |
| Description: | Anti-debug process memory working set size check |
| Reference: | http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/ |
| Rule name: | Detect_APT29_WINELOADER_Backdoor |
|---|---|
| Author: | daniyyell |
| Description: | Detects APT29's WINELOADER backdoor variant used in phishing campaigns, this rule also detect bad pdf,shtml,htm and vbs or maybe more depends |
| Reference: | https://cloud.google.com/blog/topics/threat-intelligence/apt29-wineloader-german-political-parties |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | Jupyter_infostealer |
|---|---|
| Author: | CD_R0M_ |
| Description: | Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022 |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
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
| ID | Title | Severity |
|---|---|---|
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| SECURITY_BASE_API | Uses Security Base API | ADVAPI32.dll::AdjustTokenPrivileges |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessW ADVAPI32.dll::OpenProcessToken KERNEL32.dll::OpenProcess KERNEL32.dll::VirtualAllocExNuma KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThreadpoolIo KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetSystemInfo |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::AllocConsole KERNEL32.dll::FreeConsole KERNEL32.dll::GetConsoleWindow KERNEL32.dll::GetConsoleOutputCP |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW |
| WIN_BASE_USER_API | Retrieves Account Information | ADVAPI32.dll::LookupPrivilegeValueW |
| WIN_BCRYPT_API | Can Encrypt Files | bcrypt.dll::BCryptDestroyKey bcrypt.dll::BCryptGenerateSymmetricKey bcrypt.dll::BCryptGenRandom bcrypt.dll::BCryptOpenAlgorithmProvider bcrypt.dll::BCryptCloseAlgorithmProvider |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW |
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