MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9bd28f480e38d52f38451583dafee0b7cc1098773492e3df4ece877534ce6a71. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: 9bd28f480e38d52f38451583dafee0b7cc1098773492e3df4ece877534ce6a71
SHA3-384 hash: b59182be048debfdda65a28582f911c73918e4e51501b0fb9a0276293cc935e47a10db8f8c67aa565c32b3cf0578ae47
SHA1 hash: 175da2b402f9ac787c01acffdb6a825470afb44b
MD5 hash: 65f6f2cc603375f059790779cbbb8c20
humanhash: fanta-neptune-oven-moon
File name:9bd28f480e38d52f38451583dafee0b7cc1098773492e3df4ece877534ce6a71
Download: download sample
Signature Formbook
File size:752'640 bytes
First seen:2025-06-10 08:38:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:kltf7VyGAxBCwjL6yrB5Z+BIHSXn/Cv18nAl73jx+KXxbe8VqI/hBH1jQT1H8wBI:klFPsjL6yd+u4/AeAlDJeYXjHdG2wMbZ
TLSH T11FF41214162ADD02C4A61BF508F2D3B95B386EDDFD12D7639BE97DDBBCAE6082480344
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 adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
338
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9bd28f480e38d52f38451583dafee0b7cc1098773492e3df4ece877534ce6a71
Verdict:
No threats detected
Analysis date:
2025-06-10 10:04:45 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
virus msil
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
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
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
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)
Uses threadpools to delay analysis
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1711692 Sample: B2tR3v5iQ0.exe Startdate: 11/06/2025 Architecture: WINDOWS Score: 100 33 www.tele-virtual.xyz 2->33 35 www.oufi.xyz 2->35 37 13 other IPs or domains 2->37 45 Suricata IDS alerts for network traffic 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 Multi AV Scanner detection for submitted file 2->49 53 6 other signatures 2->53 10 B2tR3v5iQ0.exe 3 2->10         started        signatures3 51 Performs DNS queries to domains with low reputation 35->51 process4 file5 31 C:\Users\user\AppData\...\B2tR3v5iQ0.exe.log, ASCII 10->31 dropped 63 Injects a PE file into a foreign processes 10->63 65 Uses threadpools to delay analysis 10->65 14 B2tR3v5iQ0.exe 10->14         started        17 svchost.exe 10->17         started        19 B2tR3v5iQ0.exe 10->19         started        signatures6 process7 signatures8 67 Maps a DLL or memory area into another process 14->67 21 SIXP4kFVIoGcb3.exe 14->21 injected process9 process10 23 ReAgentc.exe 13 21->23         started        signatures11 55 Tries to steal Mail credentials (via file / registry access) 23->55 57 Tries to harvest and steal browser information (history, passwords, etc) 23->57 59 Modifies the context of a thread in another process (thread injection) 23->59 61 3 other signatures 23->61 26 NBmOfeqGt3cQ.exe 23->26 injected 29 firefox.exe 23->29         started        process12 dnsIp13 39 d33ko590wokwa1.cloudfront.net 108.138.106.80, 49692, 49693, 49695 AMAZON-02US United States 26->39 41 www.shopystart.store 103.224.182.242, 49688, 49701, 49702 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 26->41 43 6 other IPs or domains 26->43
Threat name:
ByteCode-MSIL.Trojan.Vipkeylogger
Status:
Malicious
First seen:
2025-05-21 07:21:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
29 of 36 (80.56%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
9bd28f480e38d52f38451583dafee0b7cc1098773492e3df4ece877534ce6a71
MD5 hash:
65f6f2cc603375f059790779cbbb8c20
SHA1 hash:
175da2b402f9ac787c01acffdb6a825470afb44b
SH256 hash:
0656f59c9e7cfa07d64cf4cd7d85ebd9b4399893cc853f3d1d37cca622d1f815
MD5 hash:
e4a8fe009b340647108a98105600f476
SHA1 hash:
03193855202feecd4bc542876855e706a243f13b
SH256 hash:
015ac39131a159b53132ea692b390652c74f3a65d31160f40213ec6dd9b74d40
MD5 hash:
075f4711195a9c948546b4e5ac5e0863
SHA1 hash:
4f845df689e2486eb5d84c2fcc8af0417cfa3912
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
aaa6e036a190feda1ed3ac0c23893e4318fadfac6bdd7c1945f0362bfa68d69e
MD5 hash:
be7a657471c8685926f412cc67a27143
SHA1 hash:
bb4a455f6893d44f5e6037dbe79ae6e36fc821c5
SH256 hash:
6052a9c23045cb7503365fca49a122244d98763f10a1eb6dd748a037a8ba4afe
MD5 hash:
7d2318131c1d2abc621c9e25370935a6
SHA1 hash:
64d516147f29c502271760d2ec529ed5ce82b5ad
SH256 hash:
cd375ca676fa6c3c2e7f86511957eea985f9e459014db7aa608c787cfd18a7ae
MD5 hash:
4b3566449b0a5ffbf2a594da189dd2e2
SHA1 hash:
12639a6e9ea69b953873339824b2bec465eb630a
Detections:
win_formbook_g0
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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.

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 (HIGH_ENTROPY_VA)high

Comments