MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b. 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: 20


Intelligence 20 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b
SHA3-384 hash: 930413d99daf22164cf5ff576983d9768eccd4697fea1ce3bbb9d473c1180dd8557115723534fe644a36008942286106
SHA1 hash: f41bc1e8e2de3e6d44afe90925f3db6282ad140d
MD5 hash: fb57e23fec741e6bdbbf8f7c6a78689f
humanhash: juliet-table-bacon-nebraska
File name:SOA2345.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:678'912 bytes
First seen:2025-11-19 12:33:48 UTC
Last seen:2025-12-08 15:19:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ef471c0edf1877cd5a881a6a8bf647b9 (83 x Formbook, 33 x Loki, 31 x Loda)
ssdeep 12288:TOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPiLo+X/dGoZfqY6DZYQROGU3/95:Tq5TfcdHj4fmbm/dnZft6VYQgj315
Threatray 2'750 similar samples on MalwareBazaar
TLSH T172E422606C80CCA2F66473748076CFD91A7A7A32DE862F9D57A4E10DB87270358D6B7C
TrID 33.9% (.EXE) UPX compressed Win32 Executable (27066/9/6)
33.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
13.1% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.6% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter threatcat_ch
Tags:exe UPX
File size (compressed) :678'912 bytes
File size (de-compressed) :1'164'288 bytes
Format:win32/pe
Unpacked file: a9bf95048847b326d432a31548079e948c6872a1c8706d8d1630eb3d77bd4383

Intelligence

File Origin
# of uploads :
3
# of downloads :
105
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SOA2345.exe
Verdict:
Malicious activity
Analysis date:
2025-11-19 12:34:36 UTC
Tags:
auto-startup
Link:
https://app.any.run/tasks/c667d40b-5d46-4aad-a658-2c82c7735195

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/38654/
Detection(s):
SecuriteInfo.com.W32.Trojan.VORE-2106.1542.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=691db94a27c5936d7d0db2e6
Tags:
autorun autoit
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit compiled-script microsoft_visual_cc packed packed packed upx
Link:
https://www.filescan.io/uploads/691db94958f3738ef52459db/reports/58b4cff5-569d-428c-97c7-25ab689e18c8/overview
Verdict:
Malicious
Labled as:
Doina.Generic
Link:
https://www.hybrid-analysis.com/sample/1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-19T09:33:00Z UTC
Last seen:
2025-11-21T08:56:00Z UTC
Hits:
~1000
Detections:
Trojan-Spy.Win32.Noon.sb Trojan.Win32.Zenpak.sb Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb Trojan.Win32.Auzenpak.sb VHO:Trojan.Win32.Strab.znw Trojan-Spy.Noon.HTTP.ServerRequest Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Dorifel.sbd Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan.Win32.Strab.znv
Link:
https://opentip.kaspersky.com/1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3942fe3e-0add-4b2b-828e-b8c79569bc64
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1816863
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary is likely a compiled AutoIt script file
Drops VBS files to the startup folder
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816863 Sample: SOA2345.exe Startdate: 19/11/2025 Architecture: WINDOWS Score: 100 47 www.sz-xinbo.com 2->47 49 www.savila.me 2->49 51 3 other IPs or domains 2->51 59 Antivirus / Scanner detection for submitted sample 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 Yara detected FormBook 2->63 65 5 other signatures 2->65 12 SOA2345.exe 6 2->12         started        16 wscript.exe 1 2->16         started        signatures3 process4 file5 45 C:\Users\user\AppData\...\sacculation.exe, PE32 12->45 dropped 83 Binary is likely a compiled AutoIt script file 12->83 18 sacculation.exe 3 12->18         started        85 Windows Scripting host queries suspicious COM object (likely to drop second stage) 16->85 22 sacculation.exe 2 16->22         started        signatures6 process7 file8 43 C:\Users\user\AppData\...\sacculation.vbs, data 18->43 dropped 67 Antivirus detection for dropped file 18->67 69 Multi AV Scanner detection for dropped file 18->69 71 Binary is likely a compiled AutoIt script file 18->71 77 2 other signatures 18->77 24 svchost.exe 18->24         started        73 Writes to foreign memory regions 22->73 75 Maps a DLL or memory area into another process 22->75 27 svchost.exe 22->27         started        signatures9 process10 signatures11 79 Maps a DLL or memory area into another process 24->79 81 Unusual module load detection (module proxying) 24->81 29 7GjtQWJ6VN1M.exe 24->29 injected process12 process13 31 wlanext.exe 13 29->31         started        signatures14 87 Tries to steal Mail credentials (via file / registry access) 31->87 89 Tries to harvest and steal browser information (history, passwords, etc) 31->89 91 Modifies the context of a thread in another process (thread injection) 31->91 93 4 other signatures 31->93 34 Ume8R2gyDkim4.exe 31->34 injected 37 chrome.exe 31->37         started        39 firefox.exe 31->39         started        process15 dnsIp16 53 savila.me 185.199.109.153, 49692, 49693, 49694 FASTLYUS Netherlands 34->53 55 www.pnsideo.info 45.204.5.13, 49696, 49697, 49698 ANCHGLOBAL-AS-APAnchnetAsiaLimitedHK Seychelles 34->55 57 www.feinbergsilva.com 52.223.13.41, 49691, 80 AMAZONEXPANSIONGB United States 34->57 41 WerFault.exe 4 37->41         started        process17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b
Verdict:
Malware
YARA:
5 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/fb57e23fec741e6bdbbf8f7c6a78689f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-11-19 12:34:19 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=d455wodinjtm6i4ka6tzdaojbalz6zkorbxodnctdp5iyghvf5vq._file
Verdict:
malicious
Label(s):
autoit
Create hunting rule
Similar samples:
0effaf0dc6d8088a7a68bef26965aefc800665de5ab48a1ee70c482a6aeb79c5
Formbook
2faacf34e9482cbf4d1b032af7193b4c1ecd419da8377d47e1a307f17b77bc27
Formbook
6ee94d888af99e1060fd0455bf1cfc1852b5b410141aec0d67a3fc2e145ebb9a
Formbook
a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f
Formbook
a261dd696014b1ee8348bef04980efda5d762a6563a08c0256d5f09fec1a8cd7
Formbook
b1ca4dc79c3ef98789267e703748ac340aa6f84178f7f477e7214f5bbf0bbd78
Formbook
error
Formbook
fc5e50499a1fa723718d4b4624f12284ebb555cb577c4beec266b2bce0567b23
Formbook
+ 2'740 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan upx
Link:
https://tria.ge/reports/251119-prwxyaat7f/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Drops startup file
Executes dropped EXE
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4789230a-fa7d-4ed5-8756-cd1d821780dd
Unpacked files
SH256 hash:
1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b
MD5 hash:
fb57e23fec741e6bdbbf8f7c6a78689f
SHA1 hash:
f41bc1e8e2de3e6d44afe90925f3db6282ad140d
Link:
https://www.unpac.me/results/3718b833-ca3d-489f-b72b-4cfa5c1342cf/
SH256 hash:
61472fe59be217a4efc8044616fbced3ebb841ca67918d08aa4589dfc1e3c9f1
MD5 hash:
8ed05aa165a8042b16b71fcc768f7ee4
SHA1 hash:
79c80c7a895090cb20622346253476f371224db3
Link:
https://www.unpac.me/results/3718b833-ca3d-489f-b72b-4cfa5c1342cf/
SH256 hash:
16c1afebc19776559fdb60fded6d96ba91199bf682100b412ed45c28ec229678
MD5 hash:
9a3aaf853d30b9b7a1b1d33c60cabbb2
SHA1 hash:
c9a3eebd82df09d8247b76b3bc8689b47fb6c183
Link:
https://www.unpac.me/results/3718b833-ca3d-489f-b72b-4cfa5c1342cf/
SH256 hash:
d2c8d3fdb6425492b7820484894a9f0fdff4cb063e94da364780b8215f4d406a
MD5 hash:
155cedf23f25ac8d0ef389d6cf3ec1d9
SHA1 hash:
0a4c933740f12cf8a63201337e0843b03b33c4c2
Link:
https://www.unpac.me/results/3718b833-ca3d-489f-b72b-4cfa5c1342cf/
SH256 hash:
e173ff03e3f6bd56d0e609944a6d31e0ca552f3a87f1e15ab3f5715bff619996
MD5 hash:
2179ba30516442e88a5094f5bad5ea8f
SHA1 hash:
0407f867c26e172434c7cdb528dea8c76074d703
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/3718b833-ca3d-489f-b72b-4cfa5c1342cf/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1f3bdb38686a/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/1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b

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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9

File information

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

Malspam

Formbook

Executable exe 1f3bdb38686a66cf238a07a79181c908179f654e886ee1b4531bfa8c18f52f6b

(this sample)

Formbook

Executable exe a9bf95048847b326d432a31548079e948c6872a1c8706d8d1630eb3d77bd4383

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38654/
  
Dropping
SHA256 a9bf95048847b326d432a31548079e948c6872a1c8706d8d1630eb3d77bd4383
  
Dropping
MD5 93657f0206d7c49ff3aaf4115c2fd878

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