MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b. 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: 16


Intelligence 16 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b
SHA3-384 hash: 5e03f56048032e0cc319c813884d1f5af1f41349936f2681db9be5a8e0897aceaff8196b5195c371db116b7dcfdcb9a1
SHA1 hash: d97186c3ea9c153767ec38409d3ad48479afa375
MD5 hash: 394eefdd91c53f8749e78b77bf67a0a9
humanhash: sweet-earth-sweet-video
File name:rPumpSpecificationsSheet_Drawingspdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'205'248 bytes
First seen:2026-02-05 07:01:19 UTC
Last seen:2026-02-05 07:20:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'795 x AgentTesla, 19'693 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 24576:/guQZ3s5zIeH5Cqk7h2GribiipjWaJllZjQl/ITCBdq:4uBKuCX4bPWCllZjQlITk8
TLSH T12045237273A9CE06D06527BC5031F77437B55FA9EA12E3858ED6ECEF741AA609128303
TrID 35.4% (.EXE) Win64 Executable (generic) (10522/11/4)
22.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.1% (.EXE) Win32 Executable (generic) (4504/4/1)
6.9% (.ICL) Windows Icons Library (generic) (2059/9)
6.8% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
131
Origin country :
BR BR
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/533cbd4c-ed8a-4f28-9cd6-d01d85c04c9c/
Malware family:
n/a
ID:
1
File name:
_e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b.exe
Verdict:
No threats detected
Analysis date:
2026-02-05 07:02:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/956c5797-9f50-4922-8512-4dfd40833f0a

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/51762/
Detection(s):
SecuriteInfo.com.MalwareX-gen.16662565.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6984407d8ce611733c0b272c
Tags:
malware
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook krypt obfuscated packed unsafe
Link:
https://www.filescan.io/uploads/6984407a930564ff3c8c10cf/reports/9851b903-0320-4480-a9d5-8919873db018/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-02-05T03:34:00Z UTC
Last seen:
2026-02-07T01:26:00Z UTC
Hits:
~100
Detections:
VHO:Trojan-Spy.MSIL.Noon.gen Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb HEUR:Trojan-Spy.MSIL.Noon.gen
Link:
https://opentip.kaspersky.com/e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/815f60de-a40e-4a52-aaf8-1d87b1fbba30
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.19 Win 32 Exe x86
Link:
https://app.malva.re/file/394eefdd91c53f8749e78b77bf67a0a9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-02-05 07:02:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4xy75os4ntkweap5l23eytm5x6xie73vn2575wr4wupukpkglunq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260205-htd2kshv9d/
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
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b
MD5 hash:
394eefdd91c53f8749e78b77bf67a0a9
SHA1 hash:
d97186c3ea9c153767ec38409d3ad48479afa375
Link:
https://www.unpac.me/results/2707eab0-5f3c-4f55-98f9-e91799661ae6/
SH256 hash:
cc8069ab142c6f46394aa9926294de21a8774b87ee6b11af9c0880af98b37f53
MD5 hash:
2e624589287b5efc91189706632afe04
SHA1 hash:
2c32caa575481c88607c895a7a244aa1572e23b1
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/2707eab0-5f3c-4f55-98f9-e91799661ae6/
SH256 hash:
ad5064f5f5259097c6d65b1d3cf6170c08172ef814c29d0f5988adfed4214c81
MD5 hash:
87f00b6d27f71bef763f2ad55f82903c
SHA1 hash:
916315e071696efc4a72110fac0955a32d6becae
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/2707eab0-5f3c-4f55-98f9-e91799661ae6/
Parent samples :
e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b
9b8d72d1a03fbc62aceda0d7e071474fa88f81624ce6aed1fd77f4197cd96305
5de7c77bdb15d405f39a810f4b3ff472e4c1d61c94233efe2fab4917447aa6b6
deb7046f73f0a4e2d1481e6dbc127af59f6ebdbaa003b852508dc6c612bf7f5f
SH256 hash:
a7f5d6a88f71d2ce2c20fcfdd015a48a6b92b4d669dc56bd7107297e3bf76f2a
MD5 hash:
b77905280df2068a7574070c767214eb
SHA1 hash:
a0c65e78ea1ca8e60c9d11805affd5a778696ce5
Link:
https://www.unpac.me/results/2707eab0-5f3c-4f55-98f9-e91799661ae6/
SH256 hash:
f1acd26fdaae9c6b23416f17e2766fe6af69d47e87350a1265ee0c7ebdf6e15d
MD5 hash:
ad1a52fedd1e8cb0a2014e88a172165a
SHA1 hash:
3c34f46265f49d8e31e77911cd4daacd20f79c46
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/2707eab0-5f3c-4f55-98f9-e91799661ae6/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e5f1feba5c6c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/

File information

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

Malspam

Formbook

Executable exe e5f1feba5c6cd56201fd5eb64c4d9dbfae827f756ebbfeda3cb51f453d465d1b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51762/

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