MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 de8fb514d513594247026008558195c070ecbcaade443085e2012f58d6ef6b13. 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: 10
| SHA256 hash: | de8fb514d513594247026008558195c070ecbcaade443085e2012f58d6ef6b13 |
|---|---|
| SHA3-384 hash: | 6b6cc07e046718024f783d52d942d5a08c1146aea6f00cfcfbba37a9a061ab5e141a9e3df0bdf6aba30471d7f4093de8 |
| SHA1 hash: | 6fb78853528c308271875c453f0a96cd5fe4619f |
| MD5 hash: | 83db4b2f9576783772556f7bc1e20d78 |
| humanhash: | crazy-paris-orange-stream |
| File name: | 83db4b2f9576783772556f7bc1e20d78 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'526'552 bytes |
| First seen: | 2022-06-13 12:09:08 UTC |
| Last seen: | 2022-06-13 12:55:54 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 24576:kOAA33S1cR6cBnhjrY92tyYx0S75fq+z5fq+sOT75fq+W5fq+tJX5fq+z0sz5fq8:jXSWFn9b7rOEIZJVXGo |
| TLSH | T10465CE15B310E78BC225B33B1954F735129A0BDABE13E7A09979BAE33C433848F656D1 |
| TrID | 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.5% (.SCR) Windows screen saver (13101/52/3) 9.2% (.EXE) Win64 Executable (generic) (10523/12/4) 5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.9% (.EXE) Win32 Executable (generic) (4505/5/1) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook signed |
Code Signing Certificate
| Organisation: | rweyuddcd |
|---|---|
| Issuer: | rweyuddcd |
| Algorithm: | sha1WithRSAEncryption |
| Valid from: | 2022-06-07T06:41:48Z |
| Valid to: | 2023-06-07T06:41:48Z |
| Serial number: | ea416aafa1ba55c895a79873181f04c5 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | e9f163b3549178f37fb2feee2e6d310e548a821e6df4d537ee0a6e53cfba5fb1 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
267
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
83db4b2f9576783772556f7bc1e20d78
Verdict:
Suspicious activity
Analysis date:
2022-06-13 22:38:38 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Adding an access-denied ACE
Launching a process
Сreating synchronization primitives
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
formbook overlay 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.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
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
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 detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-06-09 02:11:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
17 of 26 (65.38%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:cfp6 loader persistence rat spyware stealer suricata
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
60b059dc4644f09b03e454c6a4798ccab21445b0b7df1677b78de45cd4aa00cf
MD5 hash:
f90f9c6221b3ebf59f48a4ba8a6d6c4d
SHA1 hash:
91e5f5304b3c4a921eebe69b3b3b894013e47745
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
SH256 hash:
de8fb514d513594247026008558195c070ecbcaade443085e2012f58d6ef6b13
MD5 hash:
83db4b2f9576783772556f7bc1e20d78
SHA1 hash:
6fb78853528c308271875c453f0a96cd5fe4619f
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: | crime_win32_ransom_avaddon_1 |
|---|---|
| Author: | @VK_Intel |
| Description: | Detects Avaddon ransomware |
| Reference: | https://twitter.com/VK_Intel/status/1300944441390370819 |
| 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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