MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81c81ed0c8aa166aeb5da40c7ebc105f6d51824b1d116d9cd548e0883b8ab92e. 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: 14
| SHA256 hash: | 81c81ed0c8aa166aeb5da40c7ebc105f6d51824b1d116d9cd548e0883b8ab92e |
|---|---|
| SHA3-384 hash: | 92b53dbc99c6fc0e1641163529bcee636188a336c9365ae7bf119d532cfec38af02668a848892739d75c55ce3ce2e783 |
| SHA1 hash: | ecf22e8944e4ec166007fd356a41d0a3eda0a2bf |
| MD5 hash: | 76d22b1d56fc7c97d4ef5d315ac66a63 |
| humanhash: | network-moon-arizona-stairway |
| File name: | Swift_payment27800$.pdf.bat.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 823'296 bytes |
| First seen: | 2026-10-14 15:21:40 UTC |
| Last seen: | 2026-10-14 15:25:14 UTC |
| File type: |  exe |
| MIME type: | application/vnd.microsoft.portable-executable |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (49'272 x AgentTesla, 20'614 x Formbook, 12'394 x SnakeKeylogger) |
| ssdeep | 12288:DdTDN6jbE7UEOzIv0F1TG75dvWhgvxh/ANyyA/Y0hkE1/BTddijSubd1x9x:BNZUEOzrPG75kgNyuY21YjSGd9 |
| TLSH | T19C05022832198407C654A3F85A71E2B807792ED9B522D3E28FDA7DEB78F5F414D40B93 |
| TrID | 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.6% (.EXE) Win64 Executable (generic) (6522/11/2) 4.5% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| dhash icon | e8d4e8e4d4e8d4e8 (3 x Formbook, 1 x AsyncRAT) |
| Reporter |  TomU |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
5
# of downloads :
126
Origin country :
CHVendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-10-14 16:36:29 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating synchronization primitives
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
bitmap masquerade packed packed powershell stego
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-09-25T12:45:00Z UTC
Last seen:
2026-09-28T07:05:00Z UTC
Hits:
~100
Malware family:
Formbook
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.27 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2026-09-25 16:25:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
16 of 22 (72.73%)
Threat level:
5/5
Detection(s):
Suspicious file
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
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
81c81ed0c8aa166aeb5da40c7ebc105f6d51824b1d116d9cd548e0883b8ab92e
MD5 hash:
76d22b1d56fc7c97d4ef5d315ac66a63
SHA1 hash:
ecf22e8944e4ec166007fd356a41d0a3eda0a2bf
SH256 hash:
eba4935337da6b6e01339cb946fe19c0447dc9c203c2d045430dd649a32331f9
MD5 hash:
006996bbea9d91808cad6dafe986c086
SHA1 hash:
1084f8b5fc2a503211f929a3c5f3be7364a02226
SH256 hash:
4366f7510d2197f4e2d5c1eb66867694aca4b001de6d009cbb9204bbb531b8c9
MD5 hash:
88dfa641d8e1b99569eb962fd02a1a14
SHA1 hash:
7260b7313a2f3f9e99a954c4dbc26ff0bd49c4fe
SH256 hash:
bc89b029b24fde6683984750f02da267e9def9c83d1e19f7a355b9ddc01b000a
MD5 hash:
d746d27eb694af7fd0ba01a5d1816f6a
SHA1 hash:
de6a212d427410f3ea8b486d7f48ea01a3b53129
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects Derialock (pe, etat extrait) |
| Rule name: | WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects Unknown (pe, etat extrait) |
| Rule name: | WIN_Sample_Unique_69354b41 |
|---|---|
| Author: | Marjoriefort |
| Description: | Specimen unique (soumission Bazaar) - strings distinctifs propres au sample |
| Reference: | 69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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