MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2
SHA3-384 hash: 4a8d856f092e9500220b71eb74e9a4289e4c83f9607ff509b202ee402fda966bd2117b2d904aeb526ce7aea66be0ab0c
SHA1 hash: 47faa2416c811e991c736c9919a6774e75aa10b1
MD5 hash: cc96c83e52e24db1eca09d1eae3ee89b
humanhash: hotel-nuts-nuts-washington
File name:16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2
Download: download sample
Signature Formbook
Create hunting rule
File size:1'034'240 bytes
First seen:2026-08-10 14:06:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'191 x AgentTesla, 20'338 x Formbook, 12'364 x SnakeKeylogger)
ssdeep 24576:4a/cWX+LfHUBJ2i52xH5it8Ih77DqVS1jt4ACWq5p:4a/czU+ikit8IFDqgFt4ACjD
TLSH T1DA2512986C02CE16D0870BB18CB1F3FE56741DDCE911DA57C9FDBEA7B8356463908A82
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 3e73715d4d5d7d23 (62 x Formbook)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
57
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/9434b88b-0fbe-4b1a-b182-5d5c76438282/
Malware family:
n/a
ID:
1
File name:
RQFPOrder07082026.rar
Verdict:
Malicious activity
Analysis date:
2026-07-14 10:02:21 UTC
Tags:
arch-exec stealer
Link:
https://app.any.run/tasks/851ec384-b7a7-47db-a1b8-53992d5b0b06

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79713/
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook packed xworm
Link:
https://www.filescan.io/uploads/6a79daedc28463a7097ad4eb/reports/9d07d176-759f-440a-abfd-345e7e912cf6/overview
Verdict:
Malicious
Labled as:
FormBook.Generic
Link:
https://www.hybrid-analysis.com/sample/16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-08T04:22:00Z UTC
Last seen:
2026-08-09T22:56:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/abe36abc-e8bc-4e5b-b257-abf230dd1c69
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-07-08 13:43:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/95ea9f9f-97d7-4354-9974-dabc0a80d153
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260810-rfe66azgma/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2
MD5 hash:
cc96c83e52e24db1eca09d1eae3ee89b
SHA1 hash:
47faa2416c811e991c736c9919a6774e75aa10b1
Link:
https://www.unpac.me/results/9b36aa73-526e-4aeb-86b7-db48a32e8c88/
SH256 hash:
e05c9b5683b1a22ad2e503a95d0f683e4b105fba6ee27b1fc3e004f249cd3da4
MD5 hash:
44d9f16b48c7e21e781187ac3ba9bfd3
SHA1 hash:
1a44c193d3474a9d1ace37f2a332702af11c6675
Link:
https://www.unpac.me/results/9b36aa73-526e-4aeb-86b7-db48a32e8c88/
SH256 hash:
b857821ade3427a9fd9d83f42150344bc905bda8328fa66ba49d499af64f23ee
MD5 hash:
7842d12d9e37c75076133be5b9904cb2
SHA1 hash:
425f1edac0b53d62a20749a6a69e5a3b260c595f
Link:
https://www.unpac.me/results/9b36aa73-526e-4aeb-86b7-db48a32e8c88/
SH256 hash:
97c23fc04cedb4f6a978cb54fb734bb3cb6226cea7df86f12b222a9d946c86ef
MD5 hash:
2218509125c5d27dceaecada27190fce
SHA1 hash:
614d7515836b0a1eecc6ce9021f0bf03510ac55d
Link:
https://www.unpac.me/results/9b36aa73-526e-4aeb-86b7-db48a32e8c88/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/16b77ec1264f00283bd08b00a72d652f4c47835c35bc906d8ba0906cbd371eb2

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
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/79713/

Comments