MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 87b9b4c99a296003001f8fbac9c6bce260b054a6ce135d6f99449cc3e27ca816. 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
| SHA256 hash: | 87b9b4c99a296003001f8fbac9c6bce260b054a6ce135d6f99449cc3e27ca816 |
|---|---|
| SHA3-384 hash: | 51245d5401c069e9e4ace01e811e469611b8dc57db40fa2386b831a14398996eefd7d1c306e60db12371204378414803 |
| SHA1 hash: | a5aed746e30dc95b0303ccd0dc8671561c066ccb |
| MD5 hash: | 1ed1ae52785f50e3ba1bee8c0c71a8d0 |
| humanhash: | moon-lithium-sodium-ohio |
| File name: | file |
| Download: | download sample |
| Signature | Formbook |
| File size: | 6'534'144 bytes |
| First seen: | 2023-04-05 14:59:40 UTC |
| Last seen: | 2023-04-05 14:59:41 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 49152:rzXQe7vymrlS47dVN2y5YPkwfTstQ+AVQtXXuIVXXXXXXIi7tJBpDPXa4QfxiVMH:XwqlSgdaaaTH++QtXXuIVXXXXXXIOg |
| Threatray | 2'625 similar samples on MalwareBazaar |
| TLSH | T127663901BBE59E12C1BA0337D1F054284BF5EC52A211D7A9328D36AB2F737924E17B67 |
| 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) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| File icon (PE): |  |
| dhash icon | ccb2696d6933b2e8 (2 x Formbook, 1 x LummaStealer) |
| Reporter |  jstrosch |
| Tags: | .NET exe FormBook MSIL |
Intelligence
File Origin
# of uploads :
2
# of downloads :
289
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
No threats detected
Analysis date:
2023-04-05 15:01:38 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Verdict:
Malicious
Labled as:
MSIL/GenKryptik.GIIF trojan
Result
Verdict:
UNKNOWN
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
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Status:
Malicious
First seen:
2023-04-05 14:27:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
16 of 24 (66.67%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'615 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:my28 rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
87b9b4c99a296003001f8fbac9c6bce260b054a6ce135d6f99449cc3e27ca816
MD5 hash:
1ed1ae52785f50e3ba1bee8c0c71a8d0
SHA1 hash:
a5aed746e30dc95b0303ccd0dc8671561c066ccb
Malware family:
XLoader
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: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Suspicious_Macro_Presence |
|---|---|
| Author: | Mehmet Ali Kerimoglu (CYB3RMX) |
| Description: | This rule detects common malicious/suspicious implementations. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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