MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f6a3c8585bb8996962de5fb9d1318694190e14221b0ca4cac71077a11d60b3c7. 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: 9
| SHA256 hash: | f6a3c8585bb8996962de5fb9d1318694190e14221b0ca4cac71077a11d60b3c7 |
|---|---|
| SHA3-384 hash: | 13fff67721795f3a4f13a98d12f923ee2c3f115ebe1d50be707e99d3f68264fc233c7f4f6f9ecbfcd354089f2b5e7ea6 |
| SHA1 hash: | 2c8a8d7759fbd7bf56fb25fe62ef9a2745da7d0c |
| MD5 hash: | d8648cc31c589b223b6455c03191fc56 |
| humanhash: | summer-oscar-hamper-arizona |
| File name: | PO_00240422.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 71'752 bytes |
| First seen: | 2022-04-25 09:04:25 UTC |
| Last seen: | 2022-04-25 09:30:59 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 1536:CReIkIrUBuDfZ7I00+OyfA4VAqjJx5KPud8zue:CRLk1udfO6AqAqjJXK2aF |
| Threatray | 12'035 similar samples on MalwareBazaar |
| TLSH | T1EF63CF101CBCD723CEBA27F441A6D7448F792B8B3450D62C5CD690C9A9A6BC69683F1F |
| TrID | 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.4% (.EXE) Win64 Executable (generic) (10523/12/4) 6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.4% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.EXE) OS/2 Executable (generic) (2029/13) |
| Reporter |  madjack_red |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated
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
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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 (e.g. based on Emerging Threat rules)
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Malicious
First seen:
2022-04-25 09:05:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
13 of 26 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 12'025 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:em8v loader rat suricata
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f6a3c8585bb8996962de5fb9d1318694190e14221b0ca4cac71077a11d60b3c7
MD5 hash:
d8648cc31c589b223b6455c03191fc56
SHA1 hash:
2c8a8d7759fbd7bf56fb25fe62ef9a2745da7d0c
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | pdb |
|---|---|
| Author: | @stvemillertime |
| Description: | Searching for PE files with PDB path keywords, terms or anomalies. |
| Rule name: | pdb2 |
|---|
| Rule name: | pdb2 |
|---|
| 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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