MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06
SHA3-384 hash: cd55a5f8c2585cfeb594b0dfb6a66272cd41a79a331f2d6049e9319fb39c4bc255bd128a9be870aad0ab673e4d40d2e8
SHA1 hash: 54dde6b7b4f68c4f63d36e62145a3e29e5c9d74b
MD5 hash: e982e25e59cdc2b2b63f6138e51a082b
humanhash: nineteen-purple-lamp-salami
File name:SecuriteInfo.com.Heur.17058.18557
Download: download sample
Signature Formbook
Create hunting rule
File size:1'250'304 bytes
First seen:2025-09-01 00:16:05 UTC
Last seen:2025-09-01 22:41:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (296 x Formbook, 52 x AgentTesla, 35 x SnakeKeylogger)
ssdeep 24576:U5EmXFtKaL4/oFe5T9yyXYfP1ijXdaveXzlwr/nu/yB54:UPVt/LZeJbInQRavAzloWy
TLSH T10845BF027391D062FFAB92334F56F6115BBC7A260123A61F13A81D79BE701B1563E7A3
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 SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
79
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Heur.17058.18557
Verdict:
No threats detected
Analysis date:
2025-09-01 00:16:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4697ac2c-b6c0-4b85-9fd5-ad8fe091d490

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/24407/
Detection(s):
SecuriteInfo.com.Heur.17058.18557.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68b4e5d5eb163e0ec183bdc2
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
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/68b4e5e139a6221faa77bbe1/reports/e44467f4-6fa7-46a1-9276-2a1387785bda/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-31T19:46:00Z UTC
Last seen:
2025-08-31T19:46:00Z UTC
Hits:
~1000
Detections:
Trojan-Spy.Win32.Noon.sb Trojan-PSW.Win32.Stealer.sb Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb HEUR:Trojan.Script.AUO.gen Trojan.Win32.Zenpak.sb PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7ce0fbb3-2a36-4394-a25b-369962e1607f
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06
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/e982e25e59cdc2b2b63f6138e51a082b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-31 22:44:22 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cwjdvh6drrqjcqxn5o2p6ebwtumnko4ctbwedn6zrridpqmr3mda._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/250901-akqd9agm7w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8fea95cd-1de9-444a-bdac-2dc0259366d0
Unpacked files
SH256 hash:
15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06
MD5 hash:
e982e25e59cdc2b2b63f6138e51a082b
SHA1 hash:
54dde6b7b4f68c4f63d36e62145a3e29e5c9d74b
Link:
https://www.unpac.me/results/4d5e4d20-4920-4482-9266-f40d34ef377b/
SH256 hash:
81efd7592841529f155fa1e7689851efd236ffc8cae2f8c74cb73fcc689db4aa
MD5 hash:
d78ca65cfb803b8b7c054ecc5c7f8435
SHA1 hash:
0714f0b5d4f146032abbebddb5977dedb9149b07
Link:
https://www.unpac.me/results/4d5e4d20-4920-4482-9266-f40d34ef377b/
SH256 hash:
f4b87f22895691a03d89ead2f1981f286d1cfcf6fcc53da850f003a45aa13fe1
MD5 hash:
a938cd0ef4ed05d24ae4da021151fcb4
SHA1 hash:
9e69e3e35af2eeaf600d68cbe81406be6c8460a3
Link:
https://www.unpac.me/results/4d5e4d20-4920-4482-9266-f40d34ef377b/
Parent samples :
8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436
6f78f41f127a47b73306a3c9f4d07fea0c2acb977e85bcc7055a171b44cd3646
09472ed1c419959674e30b72c78a5fe0f7033c1ae5b6d1226468c2939dcea592
aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2
6b6662c1050599805c0a20155ca0c8fdb566858e1914e273a69f572a5e3e61ef
a3dedbbf981145de82f06ad01c0660c92d476b7d3111de05cdc3cfc3e67c8404
30fea26dda88dc8a60e063f439547077261fdb044aa47aa108bd7457abb51998
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/15923a9fc38c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06

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: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: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: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: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: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.

Cape
Cape
https://www.capesandbox.com/analysis/24407/

Comments