MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990. 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: 16
| SHA256 hash: | fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990 |
|---|---|
| SHA3-384 hash: | 3eab3176c2f48c26660ec19f5ee34c4c106aa4dcfb76066fd565fdd16c1182fdf35e397df8e81794890e0ea85dbbd928 |
| SHA1 hash: | cd9243f1b525d08290f1bb2c428235a40e0a423e |
| MD5 hash: | 27fe38ce70fca4c4526c07a42449f11e |
| humanhash: | echo-connecticut-table-quiet |
| File name: | 27fe38ce70fca4c4526c07a42449f11e |
| Download: | download sample |
| Signature | Formbook |
| File size: | 266'240 bytes |
| First seen: | 2022-05-19 14:36:30 UTC |
| Last seen: | 2022-05-19 16:01:29 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 6144:opgWZkmFA2Pqz0+Bn97TQypbCQjGWzvo4Ks9qqKQ9hZ:opgyFpCn9vQkFPznhL9H |
| Threatray | 11'583 similar samples on MalwareBazaar |
| TLSH | T1CA446A34A668DF11C95F3875CAA75AF40163ED06CE8AD3DFB285BE293532295F03064B |
| 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) |
| File icon (PE): |  |
| dhash icon | 232b515173695d41 (14 x Formbook, 14 x AgentTesla, 6 x NanoCore) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
27fe38ce70fca4c4526c07a42449f11e
Verdict:
Malicious activity
Analysis date:
2022-05-19 23:23:19 UTC
Tags:
formbook trojan stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
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
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
xloader
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2022-05-19 03:13:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
18 of 26 (69.23%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 11'573 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:formbook family:xloader campaign:be4o loader persistence rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Formbook
Xloader
Unpacked files
SH256 hash:
26621364547ae489757767d291ff309fb3a5d867cf4355e0a735e2221327815f
MD5 hash:
a42f61b100a26cb197f84e9e08680ce8
SHA1 hash:
821c6ea0fd85bd827c86d45541b9cdd7233b2187
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990
MD5 hash:
27fe38ce70fca4c4526c07a42449f11e
SHA1 hash:
cd9243f1b525d08290f1bb2c428235a40e0a423e
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:
0.55
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_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.
Web download
Delivery method
Distributed via web download
Comments
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