MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61
SHA3-384 hash: e0f589b38314575d49fd933da7fc84ece111d11bcd3a95fe92ee6806755186d6bbe937d1bb9fb9a993d12f6e9d1476e4
SHA1 hash: 51797c14a0f8f9fcbc6c09ce96aa55bcac23084c
MD5 hash: 07042a173d5803669520714294e17226
humanhash: quebec-oscar-ohio-robert
File name:07042a173d5803669520714294e17226.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:948'224 bytes
First seen:2025-05-06 06:17:28 UTC
Last seen:2025-05-06 07:37:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3e2a6ecfffc5d43a7565ef87874e92c4 (49 x LummaStealer, 13 x Vidar, 3 x Stealc)
ssdeep 24576:9no9eS8cpPajzgvVesfn1YUVDgvVesfn1YUV:5SLSUVLtYgkVLtYg
TLSH T1A615F06DC301A5DAFD2A40BA4461524576337C2A87382FFF6394D3322E937C46A3DB66
TrID 63.5% (.EXE) Win64 Executable (generic) (10522/11/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
446
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win64.MalwareX-gen.4558.641.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6819aaa4432e243ac3e47a6a
Tags:
injection kryptik virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed packed packer_detected
Link:
https://www.filescan.io/uploads/6819a9a10b64e174c4195938/reports/ca1fa2df-923b-44f5-a7d6-abd33df3b61d/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/b5894bb5-d553-4ea9-aa86-bd77e2e6ec45
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1681829
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1681829 Sample: deq3ySNjDC.exe Startdate: 06/05/2025 Architecture: WINDOWS Score: 100 28 www.sexsecurity.xyz 2->28 30 www.lendingmerchant.xyz 2->30 32 13 other IPs or domains 2->32 42 Suricata IDS alerts for network traffic 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 Multi AV Scanner detection for submitted file 2->46 50 2 other signatures 2->50 10 deq3ySNjDC.exe 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 30->48 process4 signatures5 62 Writes to foreign memory regions 10->62 64 Allocates memory in foreign processes 10->64 66 Injects a PE file into a foreign processes 10->66 13 MSBuild.exe 10->13         started        process6 signatures7 68 Maps a DLL or memory area into another process 13->68 16 b4OY8jq5m2.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 expand.exe 13 16->19         started        process10 signatures11 52 Tries to steal Mail credentials (via file / registry access) 19->52 54 Tries to harvest and steal browser information (history, passwords, etc) 19->54 56 Modifies the context of a thread in another process (thread injection) 19->56 58 3 other signatures 19->58 22 b4OY8jq5m2.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.vividtide.live 162.0.231.203, 49703, 49704, 49705 NAMECHEAP-NETUS Canada 22->34 36 www.4x728z9yb.xyz 104.21.80.1, 49711, 49712, 49713 CLOUDFLARENETUS United States 22->36 38 2 other IPs or domains 22->38 60 Found direct / indirect Syscall (likely to bypass EDR) 22->60 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61/
Threat name:
Win64.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-05-05 23:42:55 UTC
File Type:
PE+ (Exe)
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j2om54f2ohnusplij27bvx7kel4vezolnbx76x4fxzuuvjtobnqq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/250506-g2nqbaaj8z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a4a418b2-1aa3-4c75-8aac-64be67dc338e
Unpacked files
SH256 hash:
4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61
MD5 hash:
07042a173d5803669520714294e17226
SHA1 hash:
51797c14a0f8f9fcbc6c09ce96aa55bcac23084c
Link:
https://www.unpac.me/results/b9510a14-7e11-440d-aef3-0e236c759f7c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4e9ccef0ba71/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/4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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.

Web download

Formbook

Executable exe 4e9ccef0ba71db493d684ebe1adfea22f95265cb686fff5f85be694aa66e0b61

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3536063/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW

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