MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3
SHA3-384 hash: 9d6b8e09f1601543192d59cacea7335fa8bcd644667b9e00d5359b32d968d088131bd855be7db136edf459de0999f372
SHA1 hash: 2f44f6a43057d05b2c8ea0a84234cbd58824e713
MD5 hash: 68b82cd6547adfada567ea8a3485925d
humanhash: may-charlie-oscar-oklahoma
File name:RFQ 6215.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:744'448 bytes
First seen:2025-08-15 14:45:37 UTC
Last seen:2025-08-27 15:43:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:+pcsz2yMmRjQIbSuhh4WJNuS7F6qHasXxBENtqgbuGdrGPaBZq5:+m5yMaZ7QWySB1HaiktqgKqGPaBZq5
TLSH T1E1F41265322ED813D5E627F05DB1C3B803B69EDA7001D3AA4EEAFDDB7C667450281392
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 :
2
# of downloads :
80
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ 6215.exe
Verdict:
No threats detected
Analysis date:
2025-08-15 14:46:52 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/256619fd-5e36-406c-8af2-2fdbb28028a4

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/21548/
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=689f48328fd55a79c5273848
Tags:
virus krypt msil
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
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
explorer lolbin obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/689f4825a4bdac9f5b989877/reports/8f1a6d6d-525e-4747-95ed-d3de913afdec/overview
Verdict:
Malicious
Labled as:
Genie.8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/27a01748-8647-45cb-9d7a-693925c8e0ab
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1757930
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
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: 1757930 Sample: RFQ 6215.exe Startdate: 15/08/2025 Architecture: WINDOWS Score: 100 34 www.weixinqq1204.xyz 2->34 36 www.jojexa.xyz 2->36 38 20 other IPs or domains 2->38 46 Suricata IDS alerts for network traffic 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected FormBook 2->50 54 5 other signatures 2->54 11 RFQ 6215.exe 3 2->11         started        signatures3 52 Performs DNS queries to domains with low reputation 36->52 process4 file5 32 C:\Users\user\AppData\...\RFQ 6215.exe.log, ASCII 11->32 dropped 64 Injects a PE file into a foreign processes 11->64 15 RFQ 6215.exe 11->15         started        signatures6 process7 signatures8 66 Maps a DLL or memory area into another process 15->66 18 KV97ysCq3uLKGm.exe 15->18 injected process9 process10 20 grpconv.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 G3EW74RtKL.exe 20->23 injected 26 chrome.exe 20->26         started        28 firefox.exe 20->28         started        process12 dnsIp13 40 rilovacarshomes.shop 15.197.225.128, 49739, 49740, 49741 TANDEMUS United States 23->40 42 cluster-client.inkmaginecms.com 34.160.188.69, 49731, 49732, 49733 ATGS-MMD-ASUS United States 23->42 44 13 other IPs or domains 23->44 30 WerFault.exe 4 26->30         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.39 Win 32 Exe x86
Link:
https://app.malva.re/file/68b82cd6547adfada567ea8a3485925d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3/
Verdict:
Malicious
Threat:
Trojan.MSIL.Noon
Link:
https://tip.neiki.dev/file/6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3
Threat name:
Win32.Trojan.PureLogStealer
Create hunting rule
Status:
Malicious
First seen:
2025-08-15 09:46:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=njskjeg7ro6fk2pzrgb2kgudqpupmb34soxtnr3knvobst7y4wzq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
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/250815-r46zsaytcz/
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/5297bbc1-56ce-4e47-bfe1-6c51a996c7e8
Unpacked files
SH256 hash:
6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3
MD5 hash:
68b82cd6547adfada567ea8a3485925d
SHA1 hash:
2f44f6a43057d05b2c8ea0a84234cbd58824e713
Link:
https://www.unpac.me/results/d5d4426e-b87e-48fd-ba3f-48faf633a69c/
SH256 hash:
e833b4c040a54da76ec316ed0a58bd962c104ecfaf27de4113af7d3e7246a3a9
MD5 hash:
ad7cf108545cde32ec3ee332ce267e83
SHA1 hash:
39aeb72728b1c9e64593766e73435886fdd485b0
Link:
https://www.unpac.me/results/d5d4426e-b87e-48fd-ba3f-48faf633a69c/
SH256 hash:
05375bff41644cd0f9d45cc3eafa802e411040361cafec9f62c12585331cdda7
MD5 hash:
776b22fc8f4cc09efc80e102117afe0e
SHA1 hash:
6782e0325c2dd4a4c3abab08f1ad964af012bc77
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/d5d4426e-b87e-48fd-ba3f-48faf633a69c/
SH256 hash:
929f07dc02c773e4bd51ce7405e2bc3d8460b0b2c3315875d7dc00a3c4814745
MD5 hash:
9a5507d165f8688348dad24bf793a9f9
SHA1 hash:
6cf4b8abe496742a573302805565bad9df84d1e8
Link:
https://www.unpac.me/results/d5d4426e-b87e-48fd-ba3f-48faf633a69c/
SH256 hash:
dd01957fe2016f5fc67db0625bc57e43f4d1eca9ba5b882f716cefd2af909b27
MD5 hash:
ab86226bf69bdd4360b16fd73b1da3be
SHA1 hash:
776dc1c27f9fe51e1a297af1291f8f8639e345ce
Link:
https://www.unpac.me/results/d5d4426e-b87e-48fd-ba3f-48faf633a69c/
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6a64a490df8b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3

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: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 6a64a490df8bbc5569f98983a51a8383e8f6077c93af36c76a6d5c194ff8e5b3

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/21548/

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

Comments