MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6defff65ffc0807f8f1c9b19302120434917314b69810fd74048e76bb616e0a. 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 6 File information Comments

SHA256 hash: a6defff65ffc0807f8f1c9b19302120434917314b69810fd74048e76bb616e0a
SHA3-384 hash: 2443ae70b4bb0b3f50f9fd768a3e5d4e7ed3620e617e6fde1e8991f6d88315d30793b31b662bcabde292f0c6ef1ae7ab
SHA1 hash: a2c9ef1ac92a7e9c6348197e62735c0254dbb5fa
MD5 hash: 94c9b40b02def8827579e73218af43b3
humanhash: texas-winner-alabama-early
File name:BANK INFORMATION.exe
Download: download sample
Signature Formbook
File size:1'013'760 bytes
First seen:2025-06-12 19:14:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'636 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 24576:kMQf1VCnRdCaCGCfwpxRKJvdA4QUMY9HJQgpQBW438gC:kMQfHerDWw6vK4zMgpk38g
Threatray 49 similar samples on MalwareBazaar
TLSH T19B25E01433699927E5BB53F29966C2354BB7AD4DA665C3CA0CC43CCB39FA7001A43B63
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
dhash icon b070d48646c6cc30 (3 x SnakeKeylogger, 3 x Formbook, 1 x MassLogger)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
541
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BANK INFORMATION.exe
Verdict:
No threats detected
Analysis date:
2025-06-12 19:15:47 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1713601 Sample: BANK INFORMATION.exe Startdate: 12/06/2025 Architecture: WINDOWS Score: 100 37 www.yczh.xyz 2->37 39 www.nuvaxa.xyz 2->39 41 17 other IPs or domains 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 57 6 other signatures 2->57 11 BANK INFORMATION.exe 3 2->11         started        signatures3 55 Performs DNS queries to domains with low reputation 39->55 process4 file5 35 C:\Users\user\...\BANK INFORMATION.exe.log, ASCII 11->35 dropped 14 BANK INFORMATION.exe 11->14         started        17 BANK INFORMATION.exe 11->17         started        19 BANK INFORMATION.exe 11->19         started        process6 signatures7 67 Maps a DLL or memory area into another process 14->67 21 nTNyPpchu.exe 14->21 injected process8 process9 23 label.exe 13 21->23         started        signatures10 59 Tries to steal Mail credentials (via file / registry access) 23->59 61 Tries to harvest and steal browser information (history, passwords, etc) 23->61 63 Modifies the context of a thread in another process (thread injection) 23->63 65 3 other signatures 23->65 26 89dJAfuEOI.exe 23->26 injected 29 chrome.exe 23->29         started        31 firefox.exe 23->31         started        process11 dnsIp12 43 www.thoris.tokyo 46.37.111.94, 49697, 49698, 49699 Y-INTERNETGB Spain 26->43 45 www.yczh.xyz 103.106.190.204, 49729, 49730, 49731 TELECOM-HKHongKongTelecomGlobalDataCentreHK China 26->45 47 10 other IPs or domains 26->47 33 WerFault.exe 4 29->33         started        process13
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2025-06-12 06:55:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
26 of 37 (70.27%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
a6defff65ffc0807f8f1c9b19302120434917314b69810fd74048e76bb616e0a
MD5 hash:
94c9b40b02def8827579e73218af43b3
SHA1 hash:
a2c9ef1ac92a7e9c6348197e62735c0254dbb5fa
SH256 hash:
66812c00bd482706605f2c5c76838812aa4e470e28a60fb5247673e43b7c7f8a
MD5 hash:
2879cb6c2c1afd14393b1a3af22c1212
SHA1 hash:
115928d9df0046011b1759faeb1e94c33e1574db
SH256 hash:
c9572fc442332185cbf37069bb2293f86e6aeae881d09fcf99d4f4f20cf99758
MD5 hash:
85c72bfc4aec840d4ff326e1024f2538
SHA1 hash:
335c41b048e82a93094790c35b93cc29ed685f95
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
26461b1beeb60894c69f2d29aaef9e3272e786fdd32f5af1d12aaa231c37a001
MD5 hash:
ce00f05da886f473fa0da8ac78b3921d
SHA1 hash:
799bcca247b2241d3f32a2005d0b236d9f2c48e7
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
ee916beb8b255f8b6d54f34bd948e8a8c6d06b27c8d3c6d14b4e4118fc0af54f
MD5 hash:
e837b737207eb734c288f2976241f8a7
SHA1 hash:
ae3982ed3e0ceaeeb8ab0a8002454d17295a705e
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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 a6defff65ffc0807f8f1c9b19302120434917314b69810fd74048e76bb616e0a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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