MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1a0edb84de425f4ab004ef17965b309fce345f682248865b34d9b4932d6f8f6. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments

SHA256 hash: d1a0edb84de425f4ab004ef17965b309fce345f682248865b34d9b4932d6f8f6
SHA3-384 hash: c86098eefee63f5922fc162d688c72326b4c60eab8ed999c442276385a33da5a2f492a56257af3ff27354abc9b63c56e
SHA1 hash: 39d3ffb11af8e020b0ff5865909c6ce1f715f10d
MD5 hash: b7bdf875d469192f22c6443a5e36a457
humanhash: helium-potato-uniform-single
File name:Halkbank.pdf..exe
Download: download sample
Signature Formbook
File size:774'656 bytes
First seen:2025-07-16 04:11:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'653 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:wDH1/3plPNcTEt/rx+e1ntGsbHY/s08ZpzXgQN7f+EKecdhbmHwsyvNTWH4j8:qF5lPNcTEt8e1t9b4/DglwQ9+EKeczmx
Threatray 4'051 similar samples on MalwareBazaar
TLSH T14DF40105A832DE01C5A30BB16B62EDB0137AAD4CF520E3579ED6BEDB367338515C1A4B
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 ccb66361791992cc (11 x Formbook, 6 x VIPKeylogger, 2 x XWorm)
Reporter abuse_ch
Tags:exe FormBook geo Halkbank TUR

Intelligence


File Origin
# of uploads :
1
# of downloads :
33
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Halkbank.pdf..exe
Verdict:
Malicious activity
Analysis date:
2025-07-16 04:48:13 UTC
Tags:
auto-sch-xml netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
stration spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
FormBook
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
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
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
Loading BitLocker PowerShell Module
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1737749 Sample: Halkbank.pdf..exe Startdate: 16/07/2025 Architecture: WINDOWS Score: 100 66 www.talkartifacts.xyz 2->66 68 www.trainedtalents.xyz 2->68 70 6 other IPs or domains 2->70 86 Suricata IDS alerts for network traffic 2->86 88 Sigma detected: Scheduled temp file as task from temp location 2->88 90 Multi AV Scanner detection for submitted file 2->90 94 7 other signatures 2->94 10 Halkbank.pdf..exe 7 2->10         started        14 ZvFdnSuYLWyq.exe 5 2->14         started        16 svchost.exe 1 2->16         started        signatures3 92 Performs DNS queries to domains with low reputation 68->92 process4 dnsIp5 56 C:\Users\user\AppData\...\ZvFdnSuYLWyq.exe, PE32 10->56 dropped 58 C:\Users\...\ZvFdnSuYLWyq.exe:Zone.Identifier, ASCII 10->58 dropped 60 C:\Users\user\AppData\Local\...\tmp11FE.tmp, XML 10->60 dropped 62 C:\Users\user\...\Halkbank.pdf..exe.log, ASCII 10->62 dropped 100 Uses schtasks.exe or at.exe to add and modify task schedules 10->100 102 Writes to foreign memory regions 10->102 104 Allocates memory in foreign processes 10->104 106 Adds a directory exclusion to Windows Defender 10->106 19 RegSvcs.exe 10->19         started        22 powershell.exe 23 10->22         started        24 powershell.exe 23 10->24         started        32 2 other processes 10->32 108 Multi AV Scanner detection for dropped file 14->108 110 Injects a PE file into a foreign processes 14->110 26 schtasks.exe 1 14->26         started        28 MpCmdRun.exe 14->28         started        30 RegSvcs.exe 14->30         started        64 127.0.0.1 unknown unknown 16->64 file6 signatures7 process8 signatures9 96 Maps a DLL or memory area into another process 19->96 34 GkqiFUBhT73b.exe 19->34 injected 98 Loading BitLocker PowerShell Module 22->98 36 WmiPrvSE.exe 22->36         started        38 conhost.exe 22->38         started        40 conhost.exe 24->40         started        42 conhost.exe 26->42         started        44 conhost.exe 28->44         started        46 conhost.exe 32->46         started        process10 process11 48 msra.exe 34->48         started        signatures12 78 Tries to steal Mail credentials (via file / registry access) 48->78 80 Tries to harvest and steal browser information (history, passwords, etc) 48->80 82 Modifies the context of a thread in another process (thread injection) 48->82 84 3 other signatures 48->84 51 MTuOxursXFtp.exe 48->51 injected 54 firefox.exe 48->54         started        process13 dnsIp14 72 natroredirect.natrocdn.com 85.159.66.93, 49719, 49720, 49721 CIZGITR Turkey 51->72 74 rampagewargames.net 3.33.130.190, 49715, 49716, 49717 AMAZONEXPANSIONGB United States 51->74 76 www.eostech.xyz 13.248.169.48, 49710, 49711, 49712 AMAZON-02US United States 51->76
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable PDB Path PE (Portable Executable) SOS: 0.05 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Status:
Malicious
First seen:
2025-07-14 07:23:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution persistence
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
d1a0edb84de425f4ab004ef17965b309fce345f682248865b34d9b4932d6f8f6
MD5 hash:
b7bdf875d469192f22c6443a5e36a457
SHA1 hash:
39d3ffb11af8e020b0ff5865909c6ce1f715f10d
SH256 hash:
0ad9330f8096b30a282f53d51dfe44664f3ba3251199d25f097c01f43fe55aec
MD5 hash:
cc621595551035aa96c37e8738bfb040
SHA1 hash:
3507953a4fba3cf6df37347156f060e4e9e09ed7
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24 INDICATOR_EXE_Packed_SmartAssembly
Parent samples :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 hash:
fae90ccbb6f6fafa775c9643e8b9c5d17720d62f20245a547fbec305e58ccacc
MD5 hash:
610afcdfd567b3a6a35bdf2a239f4f00
SHA1 hash:
81b28200866e2ee852444591721177129e012b18
SH256 hash:
6eec9077bd37f92285631db9990d15b37a8162a01b16ef266dae696586c7084f
MD5 hash:
fe46de692c1321a083d85b988fd946af
SHA1 hash:
daf3356585a390f7b9bad4082003eb70336cdb0c
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
b9f8a915e53b7d35ce337b8fdbfad877dff414ac3f07c0102f82e987305cf7fb
MD5 hash:
9e7b54916cd8143d95784785733bf98a
SHA1 hash:
d1b6e56216c6cfa93e46ff61389dfcc7d4bf9622
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:pe_no_import_table
Description:Detect pe file that no import table
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
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 (GUARD_CF)high

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