MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8249e88d3b270dba037eae0a0308f828f87e6a5c2c61678ef4943293cbe26fb3. 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: 11
| SHA256 hash: | 8249e88d3b270dba037eae0a0308f828f87e6a5c2c61678ef4943293cbe26fb3 |
|---|---|
| SHA3-384 hash: | a5c89d40da33632fd08de6301fe3be07d0ce307bc9fb434f09e92167398f47a899d4d4496881d9a0be493ec297aa7565 |
| SHA1 hash: | 16fba75bf072b4de822e76bebb313bae46689f45 |
| MD5 hash: | c6b71acb6ebc1a3a81ab3aad0d520185 |
| humanhash: | angel-alanine-berlin-don |
| File name: | RVEG00123737.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 293'294 bytes |
| First seen: | 2023-08-09 04:45:27 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader) |
| ssdeep | 6144:jYa6tQDznXayJ6k9wpwU5p1jlSdNu0eQiMhtyz2:jYvGjXRJ6kypJ/s/Re2N |
| Threatray | 3'568 similar samples on MalwareBazaar |
| TLSH | T11B541201BAD18CBAD8670E310F7A5AA75EFAFE0208A7465F2B81372C7D77513A90D311 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | eccc8c94d4d8e8f4 (21 x Formbook, 15 x AgentTesla, 5 x Loki) |
| Reporter |  JAMESWT_WT |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
347
Origin country :
ITVendor Threat Intelligence
Detection:
Formbook
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Сreating synchronization primitives
Sending a custom TCP request
Gathering data
Verdict:
Malicious
Labled as:
Trojan.IEC.Generic
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.
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
NSISDropper, FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Detected unpacking (changes PE section rights)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-08-08 23:39:49 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
22 of 24 (91.67%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'558 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
cc48b9520d64fd7e850c36fddec6e8d15d316a3da608dfdff06b9ca2f6262814
MD5 hash:
afaadef3efcf57e38d6c60e2ea645d01
SHA1 hash:
57cfb642f4f55dfec33c33877a501855613fe927
SH256 hash:
8249e88d3b270dba037eae0a0308f828f87e6a5c2c61678ef4943293cbe26fb3
MD5 hash:
c6b71acb6ebc1a3a81ab3aad0d520185
SHA1 hash:
16fba75bf072b4de822e76bebb313bae46689f45
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: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Windows_Trojan_Formbook |
|---|---|
| Author: | @malgamy12 |
| Rule name: | Windows_Trojan_Formbook_1112e116 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.formbook. |
| Rule name: | win_formbook_w0 |
|---|---|
| Author: | @malgamy12 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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