MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4ff209aea9caf232f64a0a1670504bc6f37d079fa66dbe303439a93e00c3cdc6. 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: | 4ff209aea9caf232f64a0a1670504bc6f37d079fa66dbe303439a93e00c3cdc6 |
|---|---|
| SHA3-384 hash: | 832736fd502c69fb8eeed8d1b72c0a4bb801a1cb2e32e00f0d839ab95c282bb7090d8b4679af2159b7e2cab83a71be2e |
| SHA1 hash: | 5affa0807d36dc064de6daf336ef9b074e6ef308 |
| MD5 hash: | 66327cb157de8ff34bd61a710d30d814 |
| humanhash: | river-august-georgia-gee |
| File name: | SecuriteInfo.com.Variant.Strictor.47541.25845.4974 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 645'120 bytes |
| First seen: | 2022-05-18 17:47:15 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 6144:ZBuEIjsUUzqysOGJKINKk4rlIEjtEgbnJ7uQgAzfUbTKj7Jc/LO5i00RyEc1fUTQ:ZiINzqI8KZtPwQIa7Jcq5i00RyESfeq |
| TLSH | T102D4705C37155E72FF1F883498420B24BBA6BF037640A9D367DB21CB8B9B0675E06DA4 |
| TrID | 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.9% (.EXE) Win64 Executable (generic) (10523/12/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.7% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.2% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | f2d2c9d86c7eb050 (2 x Formbook) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
SecuriteInfo.com.Variant.Strictor.47541.25845.4974
Verdict:
Malicious activity
Analysis date:
2022-05-18 17:50:52 UTC
Tags:
formbook trojan stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
cmd.exe obfuscated packed
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:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Binary or sample is protected by dotNetProtector
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.Strictor
Status:
Malicious
First seen:
2022-05-18 08:33:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
100
AV detection:
19 of 41 (46.34%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:c0my loader persistence rat suricata
Behaviour
Creates scheduled task(s)
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
4c18cf4c183cbdf3e56a6ff066006412afa4e3af052bda02f025e1c8437dc616
MD5 hash:
d7c3ab07a464bc75337aae824f5292f0
SHA1 hash:
4c8f3737b109f8cfda501afcfa61492d4e58f639
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
4ff209aea9caf232f64a0a1670504bc6f37d079fa66dbe303439a93e00c3cdc6
MD5 hash:
66327cb157de8ff34bd61a710d30d814
SHA1 hash:
5affa0807d36dc064de6daf336ef9b074e6ef308
Malware family:
XLoader
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: | INDICATOR_EXE_Packed_Babel |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with Babel |
| Rule name: | INDICATOR_EXE_Packed_Dotfuscator |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with Dotfuscator |
| Rule name: | INDICATOR_EXE_Packed_dotNetProtector |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with dotNetProtector |
| Rule name: | INDICATOR_EXE_Packed_Goliath |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with Goliath |
| Rule name: | INDICATOR_EXE_Packed_SmartAssembly |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with SmartAssembly |
| 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.
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