MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2. 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 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2
SHA3-384 hash: 8e54be93dc6db3763a4b1340172eb8078ec6e49f4051433fb619f7bb0cb6fb22f1f44651b8920b2d180394e85b2e311b
SHA1 hash: 5f69dbfd6375d4bcfc10c18be5f6b4e971fa2f68
MD5 hash: 6e9f63fc7183fd3c9ba7eaeb24329c8d
humanhash: three-bravo-november-oscar
File name:Quot. no. 20144491.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:909'824 bytes
First seen:2025-09-09 20:02:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:xPH91gN50UhYl4ONJPrDhioReFejKQcr:NH9q3afNJzKFdQ+
TLSH T1CC15D05032A89D0BE0B68AF055B1E2B01BB4BE99B965D2CF8DC13CDF78F5B411682717
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
125
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quot. no. 20144491.exe
Verdict:
No threats detected
Analysis date:
2025-09-09 20:03:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/23d07281-0777-4133-a7a0-e0a89b947334

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/26556/
Detection(s):
SecuriteInfo.com.Trojan.Inject6.1860.9459.22529.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68c088236e66ba602d798f79
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68c0881ecfa59bfdc7f6444b/reports/9055fc08-a207-483a-a062-2c352e0d2969/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-09T03:27:00Z UTC
Last seen:
2025-09-09T03:27:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c0f55f52-9c89-4a71-a41d-ec15028ce239
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1774272
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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 submitted file
Performs DNS queries to domains with low reputation
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1774272 Sample: Quot. no. 20144491.exe Startdate: 09/09/2025 Architecture: WINDOWS Score: 100 34 www.ecpay-tw067.xyz 2->34 36 www.78452609.xyz 2->36 38 19 other IPs or domains 2->38 46 Suricata IDS alerts for network traffic 2->46 48 Antivirus detection for URL or domain 2->48 50 Multi AV Scanner detection for submitted file 2->50 54 5 other signatures 2->54 11 Quot. no. 20144491.exe 3 2->11         started        signatures3 52 Performs DNS queries to domains with low reputation 36->52 process4 file5 32 C:\Users\user\...\Quot. no. 20144491.exe.log, ASCII 11->32 dropped 64 Injects a PE file into a foreign processes 11->64 15 Quot. no. 20144491.exe 11->15         started        signatures6 process7 signatures8 66 Maps a DLL or memory area into another process 15->66 18 GaLC9WXlKa7.exe 15->18 injected process9 process10 20 proquota.exe 13 18->20         started        signatures11 56 Tries to steal Mail credentials (via file / registry access) 20->56 58 Tries to harvest and steal browser information (history, passwords, etc) 20->58 60 Modifies the context of a thread in another process (thread injection) 20->60 62 3 other signatures 20->62 23 JsRc28dv5.exe 20->23 injected 26 chrome.exe 20->26         started        28 firefox.exe 20->28         started        process12 dnsIp13 40 www.suvorr.tokyo 46.37.111.21, 49704, 49705, 49706 Y-INTERNETGB Spain 23->40 42 www.mireza.site 203.161.43.199, 49712, 49713, 49714 VNPT-AS-VNVNPTCorpVN Malaysia 23->42 44 8 other IPs or domains 23->44 30 WerFault.exe 4 26->30         started        process14
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.19 Win 32 Exe x86
Link:
https://app.malva.re/file/6e9f63fc7183fd3c9ba7eaeb24329c8d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-09-09 08:09:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
26 of 38 (68.42%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lfcs42cwwsvm25gcfnsbvcb3jkrpyz5gviva3dmvsnf2f74srcra._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
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/250909-ys1f7aem8y/
Behaviour
Suspicious behavior: EnumeratesProcesses
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/545e6b4e-628a-46f3-9040-507b1f597071
Unpacked files
SH256 hash:
59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2
MD5 hash:
6e9f63fc7183fd3c9ba7eaeb24329c8d
SHA1 hash:
5f69dbfd6375d4bcfc10c18be5f6b4e971fa2f68
Link:
https://www.unpac.me/results/28ba212f-64cb-4793-a738-e1d5e73c0995/
SH256 hash:
bfd9e784b16c080df91c5019b42a50655c4fefb46bf761f5f19e0b686643c5bb
MD5 hash:
64f04cb0f4a616ad6227723ddec4a13c
SHA1 hash:
12dedd0357cfccb9ef03a62f35b9bf519fe8868a
Link:
https://www.unpac.me/results/28ba212f-64cb-4793-a738-e1d5e73c0995/
SH256 hash:
637beb7fc53b32c9f7329d8a18db9fe945cfd254803fc1cd8c3dac5150d6b022
MD5 hash:
f9f33e388f66bd39a3f491ea85693723
SHA1 hash:
37f4f8af0e1eb8ac30ade6eaa95eec6c312a811f
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/28ba212f-64cb-4793-a738-e1d5e73c0995/
SH256 hash:
0b7cdf9dbe6f165393c87acaad5aa65e6882b9d5c54550ef3c597737e0ad32ff
MD5 hash:
7e4ca1b335ac6a61c1477a46e04dbaad
SHA1 hash:
a2ca1a9641a0ddc668c93f5f89eac2b67ecd0f8e
Link:
https://www.unpac.me/results/28ba212f-64cb-4793-a738-e1d5e73c0995/
SH256 hash:
4a6dff6b96cfe65bbcf689dacf26d62aa5f582a5c62c5772e1dcd8d97a444f57
MD5 hash:
3dd86b822301a8d6374ad1c7ed969d66
SHA1 hash:
3383b3170854c6c805cb96f9b0428f32e476957f
Link:
https://www.unpac.me/results/28ba212f-64cb-4793-a738-e1d5e73c0995/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/59452e6856b4/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/59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2

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_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__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: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: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 59452e6856b4aacd74c22b641a883b4aa2fc67a6aa2a0d8d95934ba2ff9288a2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/26556/

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