MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a3a9320405303d369e0f915541fd2dffa46c96772840069b6c55b2c4051cf342. 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: 13
| SHA256 hash: | a3a9320405303d369e0f915541fd2dffa46c96772840069b6c55b2c4051cf342 |
|---|---|
| SHA3-384 hash: | a8509fa06193cc4d33c3461a6195f746bf414dd0d1b764a08bf291c54bcbf126565ae02caf6a34c90badcd8d78850993 |
| SHA1 hash: | 98da3c0a88fa31520b9695a06100abccade4a702 |
| MD5 hash: | 3310508e4874b8b3187af93280cbba2e |
| humanhash: | alanine-eight-tennis-uniform |
| File name: | 3310508e4874b8b3187af93280cbba2e |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'128'448 bytes |
| First seen: | 2022-03-11 18:15:58 UTC |
| Last seen: | 2022-03-11 20:18:44 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 24576:TTdcm+txJzks9mVX2MbvF9T0FBrNzhSt5zI17Yi1xlCq2P6tfufDw:XdcmaMxVmMbvAFjh5ZCq2y5Q |
| TLSH | T1FE35BF5532D44E11FB7FBFB5E1FD2A3885317222671BAA0A19401E841CE73708EA75AF |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AWB_Tracking_0311202209837430000000.xlsx
Verdict:
Malicious activity
Analysis date:
2022-03-12 02:15:12 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Сreating synchronization primitives
Adding an access-denied ACE
Launching a process
Searching for synchronization primitives
Creating a file
Reading critical registry keys
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
explorer.exe obfuscated packed
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.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Found malware configuration
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-11 18:16:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
17 of 27 (62.96%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:u6rs loader rat suricata
Behaviour
Runs regedit.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a3a9320405303d369e0f915541fd2dffa46c96772840069b6c55b2c4051cf342
MD5 hash:
3310508e4874b8b3187af93280cbba2e
SHA1 hash:
98da3c0a88fa31520b9695a06100abccade4a702
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | malware_Formbook_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.formbook. |
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
Comments
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