MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8358c009205dd4bc938b07ca3adbd41e3e84b4e3c639cfecb779be0ded5671a7. 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: | 8358c009205dd4bc938b07ca3adbd41e3e84b4e3c639cfecb779be0ded5671a7 |
|---|---|
| SHA3-384 hash: | 55f3534e161a552a144ac31e1bf21aa2f8f7ef1754a9166b695d80495420bf904ebe7e01d12ba9cb661885cea535da55 |
| SHA1 hash: | 9caef6b14811c8f91ea3655c78d9bb10bc94f184 |
| MD5 hash: | 055134c1a000722c97df9e3016d94619 |
| humanhash: | april-zebra-delaware-bacon |
| File name: | TM3521_ST135_TI05093550.pdf.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 463'872 bytes |
| First seen: | 2023-08-25 12:35:39 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 6144:3m79rPD1qXHwNEyqe0Opvp87VnQOkh7nnUY4JlezTkUV/zWWfMC2ZWgNUBJ0xW:WxrPD4dyv0OgBn3khLgrcTT1C0SOJW |
| Threatray | 2'483 similar samples on MalwareBazaar |
| TLSH | T14BA48203BA468DE5D38F1B36C58B1000CBACDE813627D79F798A336639637AA9D47507 |
| TrID | 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.8% (.SCR) Windows screen saver (13097/50/3) 8.7% (.EXE) Win64 Executable (generic) (10523/12/4) 5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1) |
| Reporter |  malwarelabnet |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
339
Origin country :
CAVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TM3521_ST135_TI05093550.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-08-25 12:37:01 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching a process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
control lolbin masquerade packed replace
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-08-25 05:51:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 37 (56.76%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'473 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
6/10
Tags:
persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Unpacked files
SH256 hash:
8358c009205dd4bc938b07ca3adbd41e3e84b4e3c639cfecb779be0ded5671a7
MD5 hash:
055134c1a000722c97df9e3016d94619
SHA1 hash:
9caef6b14811c8f91ea3655c78d9bb10bc94f184
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: | NET |
|---|---|
| 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.
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