MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2. 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: 18


Intelligence 18 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2
SHA3-384 hash: 6cf2af341262755fd1170ad6f74252c306b86d363411cab8c554a2e1a27e6da164639265423f14aefe40452d479b213e
SHA1 hash: dad69c104e71dfcc8c2e447f235b95f1fd2ed3fd
MD5 hash: ccd2facc2a00ae90ad07ac9169c8b304
humanhash: nuts-london-mirror-emma
File name:Request of quotatin.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'250'304 bytes
First seen:2025-09-02 05:03:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (300 x Formbook, 52 x AgentTesla, 35 x SnakeKeylogger)
ssdeep 24576:w5EmXFtKaL4/oFe5T9yyXYfP1ijXdaQrFfv/u+2v:wPVt/LZeJbInQRaQrRvm+
TLSH T1ED45BF027381C066FFAB92334B56F6115BBC79260123A62F13981DB9FE705B1563E7A3
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Request of quotatin.exe
Verdict:
No threats detected
Analysis date:
2025-09-02 05:06:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cb43d297-a60d-4816-99d9-dbea6d6d9064

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/24639/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68b67aa6eb163e0ec1841b9a
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit cmdkey compiled-script fingerprint formbook keylogger lolbin microsoft_visual_cc packed regsvr32 stealer threat unsafe
Link:
https://www.filescan.io/uploads/68b67aa839a6221faa79bb55/reports/c693e436-7266-4c1d-9bed-893e45edfdac/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-31T20:42:00Z UTC
Last seen:
2025-08-31T20:42:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dbe77f8b-5842-4638-acf6-5b392084ea8e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1769221
Signature
Binary is likely a compiled AutoIt script file
Found API chain indicative of sandbox detection
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/ccd2facc2a00ae90ad07ac9169c8b304
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-09-01 10:22:11 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=v325iwj4zpbuffiaw7sj2d3tlo5ih6ar36cytd7l752gxk6q5sra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250902-fpyt3sdn81/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f91afdff-ea3e-4127-b472-14bfc62d8a69
Unpacked files
SH256 hash:
aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2
MD5 hash:
ccd2facc2a00ae90ad07ac9169c8b304
SHA1 hash:
dad69c104e71dfcc8c2e447f235b95f1fd2ed3fd
Link:
https://www.unpac.me/results/5c8f06a0-d06b-4750-88f4-97d11a1535f0/
SH256 hash:
81efd7592841529f155fa1e7689851efd236ffc8cae2f8c74cb73fcc689db4aa
MD5 hash:
d78ca65cfb803b8b7c054ecc5c7f8435
SHA1 hash:
0714f0b5d4f146032abbebddb5977dedb9149b07
Link:
https://www.unpac.me/results/5c8f06a0-d06b-4750-88f4-97d11a1535f0/
SH256 hash:
f4b87f22895691a03d89ead2f1981f286d1cfcf6fcc53da850f003a45aa13fe1
MD5 hash:
a938cd0ef4ed05d24ae4da021151fcb4
SHA1 hash:
9e69e3e35af2eeaf600d68cbe81406be6c8460a3
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/5c8f06a0-d06b-4750-88f4-97d11a1535f0/
Parent samples :
8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436
6f78f41f127a47b73306a3c9f4d07fea0c2acb977e85bcc7055a171b44cd3646
09472ed1c419959674e30b72c78a5fe0f7033c1ae5b6d1226468c2939dcea592
aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2
6b6662c1050599805c0a20155ca0c8fdb566858e1914e273a69f572a5e3e61ef
a3dedbbf981145de82f06ad01c0660c92d476b7d3111de05cdc3cfc3e67c8404
30fea26dda88dc8a60e063f439547077261fdb044aa47aa108bd7457abb51998
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/aef5d4593ccb/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/aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
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: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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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.

Malspam

Formbook

Executable exe aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/24639/

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