MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cb723d514a98b4d825222314945c680011cf2ba21dafd5cd9129fe144083b944. 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
| SHA256 hash: | cb723d514a98b4d825222314945c680011cf2ba21dafd5cd9129fe144083b944 |
|---|---|
| SHA3-384 hash: | f15ecb77bf9d7ab588e499210bbbcf8744bdead26201bf9c1eb76e31351842b1d163b81902bca01739b3b1d07e12921a |
| SHA1 hash: | 0465630ce40cd3eaf1e9f92daaccc16b9c3241e7 |
| MD5 hash: | bb06ed23d87e32af51577a5c513154a4 |
| humanhash: | johnny-mockingbird-yellow-juliet |
| File name: | PO 4500118077.pdf.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 411'648 bytes |
| First seen: | 2024-08-18 16:19:33 UTC |
| Last seen: | 2024-12-06 08:47:45 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 6144:zmb3/3zvZ74J5spMIUYYKUeq7a/WUuufBvRiD5a:2v54Jq1B6L7UuupA |
| Threatray | 2'121 similar samples on MalwareBazaar |
| TLSH | T1D094CF0D0BF844A4E9FE8A7489B1402887B0F55B1963FB7F538060F99E23BA59D42777 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Reporter |  lowmal3 |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
5
# of downloads :
345
Origin country :
DEVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO 4500118077.pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-08-18 16:20:50 UTC
Tags:
formbook xloader stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Malicious
Score:
95.7%
Tags:
Generic Stealth Msil
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
90%
Tags:
masquerade phishing vbnet
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
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:
Suspicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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: CMSTP Execution Process Creation
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Trojan.Zilla
Status:
Malicious
First seen:
2024-08-11 04:13:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 38 (52.63%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'111 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
3/10
Tags:
discovery
Behaviour
Suspicious use of AdjustPrivilegeToken
System Location Discovery: System Language Discovery
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
cb723d514a98b4d825222314945c680011cf2ba21dafd5cd9129fe144083b944
MD5 hash:
bb06ed23d87e32af51577a5c513154a4
SHA1 hash:
0465630ce40cd3eaf1e9f92daaccc16b9c3241e7
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Delivery method
Other
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_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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