MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 af5835e0d7dd70f3069d768e70ed95fea363bc4b6aa00ca6d5e43ed615cfc5c8. 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: 17
| SHA256 hash: | af5835e0d7dd70f3069d768e70ed95fea363bc4b6aa00ca6d5e43ed615cfc5c8 |
|---|---|
| SHA3-384 hash: | 9a3f939617791c046696d460c7c04e0084b8f97585f31589c890209dc09ee985a90e0aa6267d0595b349952618f2143e |
| SHA1 hash: | f71e2f6df68ecdfb4843102406470f636ef33a55 |
| MD5 hash: | 39af4756e3b249277bc42d822da361cb |
| humanhash: | papa-muppet-grey-autumn |
| File name: | af5835e0d7dd70f3069d768e70ed95fea363bc4b6aa00ca6d5e43ed615cfc5c8 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 972'296 bytes |
| First seen: | 2025-08-12 15:00:55 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:BZRt/QW4s5GezSwhc8qdb3M1ZJDejBmxYaZGZyZNM+eLFbmMTBEI6HQb8WakT3c0:zT4skSh2ZM3h3UYZ6PxfT2IcQbjSQBQe |
| Threatray | 122 similar samples on MalwareBazaar |
| TLSH | T18625F11C6688C80DC5BE8273A5B6F1710BB97D57F420E26D2AC9BCEB3DB0B415C4536A |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| dhash icon | 33f098969698f033 (3 x SnakeKeylogger, 1 x Formbook) |
| Reporter |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
57
Origin country :
HUVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
af5835e0d7dd70f3069d768e70ed95fea363bc4b6aa00ca6d5e43ed615cfc5c8
Verdict:
Malicious activity
Analysis date:
2025-08-13 00:48:06 UTC
Tags:
formbook xloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
virus krypt msil
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
base64 bitmap expired-cert fingerprint invalid-signature lolbin msbuild obfuscated packed packed reconnaissance regsvcs rezer0 roboski schtasks signed stego vbc zero
Verdict:
Malicious
Labled as:
Trojan.Generic
Malware family:
KeyBase
Verdict:
Malicious
Score:
89%
Verdict:
Malware
File Type:
PE
Gathering data
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-08-10 06:05:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
26 of 38 (68.42%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_037
Similar samples:
+ 112 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
af5835e0d7dd70f3069d768e70ed95fea363bc4b6aa00ca6d5e43ed615cfc5c8
MD5 hash:
39af4756e3b249277bc42d822da361cb
SHA1 hash:
f71e2f6df68ecdfb4843102406470f636ef33a55
SH256 hash:
247b3d54d08c7b920037e3c56ae32943082d9e306445135ff10ae6dc0a3dcf06
MD5 hash:
5d5dea1598a413c3577b14bdb6d4f2dd
SHA1 hash:
8ceac282d28ff88e6a768fdac754b999d9822c71
SH256 hash:
80289626eb83828df6227ab116582133b8c8037b7347a6b9b9899f97f5b548d4
MD5 hash:
42dc89ffab59f1873d425d8a2a88faf8
SHA1 hash:
bb82839d8c4054452d8523422e12e65adb0f25f0
SH256 hash:
540df9a66272f48d89cd049e7641e32ea528bd94e5bcad14960d02aa8e435d88
MD5 hash:
2b57f9eda1bee3386a0434a1c3b0e2b9
SHA1 hash:
e48947a3892e8f883bc70c9201b514b4a0cec48c
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
c3da0b03701fb2aad0a26fc9a592c30c036bf9fd45d1243416749d26e9c98ef2
MD5 hash:
b94bb5bd5f394a2a4a3dc78030d96460
SHA1 hash:
464a758cc6b5ff7452fa044dc85373faea29b63c
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
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: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | Detect_PowerShell_Obfuscation |
|---|---|
| Author: | daniyyell |
| Description: | Detects obfuscated PowerShell commands commonly used in malicious scripts. |
| Rule name: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables signed with stolen, revoked or invalid certificates |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| 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: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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