MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23
SHA3-384 hash: 1248d9918c2a363e4cdee89ff2b552af0279f6beddef3f1c760fa111a433e47bfdfaebd4e5433e28b4eeef78a29afc96
SHA1 hash: 57322d5e43b175454bed0d1211b2441a2a7012b9
MD5 hash: 3752be99801dc9b8dfc17ac9deb2e0e3
humanhash: kansas-nebraska-sink-leopard
File name:EhV1o17YbkObkcg.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:649'736 bytes
First seen:2025-05-12 13:37:40 UTC
Last seen:2025-05-19 12:18:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:fpytzlLU6pHHGajC1+I/aO8yz9Jzsybxk1Y1vTeYeJ5iLGqJQqxBGO1IqTkArfkR:AeAHlCsGj/O21vKYeTiLGq6qxB1IqTk/
Threatray 4'970 similar samples on MalwareBazaar
TLSH T131D41218322AEA12C4921FB42D72D2B813F6AF9DE811D7139EF87DEF38367412945249
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 James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
478
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NEW INQUIRY.zip
Verdict:
Malicious activity
Analysis date:
2025-05-12 07:53:58 UTC
Tags:
arch-exec netreactor
Link:
https://app.any.run/tasks/e956dbd5-436b-4d75-8994-c88e7cd4e93f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.15141.31886.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6821facce16384d6a703c9eb
Tags:
injection spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
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
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert invalid-signature obfuscated packed packed packer_detected signed
Link:
https://www.filescan.io/uploads/6821f9cb0b64e174c4231192/reports/fc66da80-6657-4abf-ac70-6f7059ba3148/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f23fb697-130d-4ebd-b4db-a976740a5759
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1687952
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
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)
Sample uses process hollowing technique
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1687952 Sample: EhV1o17YbkObkcg.exe Startdate: 12/05/2025 Architecture: WINDOWS Score: 100 68 www.betka.xyz 2->68 70 x92q.top 2->70 72 10 other IPs or domains 2->72 80 Suricata IDS alerts for network traffic 2->80 82 Found malware configuration 2->82 84 Malicious sample detected (through community Yara rule) 2->84 88 9 other signatures 2->88 11 EhV1o17YbkObkcg.exe 7 2->11         started        15 ztAjLGwOcCANfG.exe 5 2->15         started        17 svchost.exe 2->17         started        signatures3 86 Performs DNS queries to domains with low reputation 68->86 process4 dnsIp5 60 C:\Users\user\AppData\...\ztAjLGwOcCANfG.exe, PE32 11->60 dropped 62 C:\Users\user\AppData\Local\Temp\tmpB90.tmp, XML 11->62 dropped 64 C:\Users\user\...hV1o17YbkObkcg.exe.log, ASCII 11->64 dropped 112 Uses schtasks.exe or at.exe to add and modify task schedules 11->112 114 Writes to foreign memory regions 11->114 116 Allocates memory in foreign processes 11->116 120 2 other signatures 11->120 20 vbc.exe 11->20         started        23 powershell.exe 23 11->23         started        25 powershell.exe 23 11->25         started        27 schtasks.exe 1 11->27         started        118 Multi AV Scanner detection for dropped file 15->118 29 vbc.exe 15->29         started        31 schtasks.exe 15->31         started        33 vbc.exe 15->33         started        35 vbc.exe 15->35         started        66 127.0.0.1 unknown unknown 17->66 file6 signatures7 process8 signatures9 100 Modifies the context of a thread in another process (thread injection) 20->100 102 Maps a DLL or memory area into another process 20->102 104 Sample uses process hollowing technique 20->104 108 3 other signatures 20->108 37 explorer.exe 63 1 20->37 injected 106 Loading BitLocker PowerShell Module 23->106 41 WmiPrvSE.exe 23->41         started        43 conhost.exe 23->43         started        45 conhost.exe 25->45         started        47 conhost.exe 27->47         started        49 conhost.exe 31->49         started        process10 dnsIp11 74 www.betka.xyz 2.58.66.47, 80 BIRUANG-ASSE Netherlands 37->74 76 x92q.top 76.223.67.189, 49709, 80 AMAZON-02US United States 37->76 78 204.79.197.203, 443 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 37->78 110 System process connects to network (likely due to code injection or exploit) 37->110 51 explorer.exe 37->51         started        54 colorcpl.exe 37->54         started        signatures12 process13 signatures14 90 System process connects to network (likely due to code injection or exploit) 51->90 92 Modifies the context of a thread in another process (thread injection) 51->92 94 Maps a DLL or memory area into another process 51->94 96 Switches to a custom stack to bypass stack traces 51->96 56 cmd.exe 51->56         started        98 Tries to detect virtualization through RDTSC time measurements 54->98 process15 process16 58 conhost.exe 56->58         started       
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23/
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2025-05-12 06:23:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fbn5ek5eti66ma7j774fnif5gei6inrjvuu6es5ucf4k7wj6zyrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
0198cc6636a1c05da00eb7457f498c6e1743fe0a9e3d50fc106621f862bf04dd
Formbook
06c800d5feba73344681fe9f7fa2cf6606d18fc37cc0a84cbcce2e06fa6dd9f9
Formbook
339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97
Formbook
81f6e3ff9cc821300e30acd628d0579793806ebfb89941d04f9bc33998f9a851
Formbook
acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65
Formbook
+ 4'960 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hi13 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250512-qxh4pscl8t/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Uses the VBS compiler for execution
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/854315a9-4470-4d6e-961f-e0958e6eb96d
Unpacked files
SH256 hash:
285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23
MD5 hash:
3752be99801dc9b8dfc17ac9deb2e0e3
SHA1 hash:
57322d5e43b175454bed0d1211b2441a2a7012b9
Link:
https://www.unpac.me/results/5f2fe52b-f888-4a78-94c9-3a673952edd6/
SH256 hash:
e65bc4732f18966eeaba9700bb83489074f63082cf28bc05e90d278a1761ac25
MD5 hash:
f568aa0b7be96ed2102e8de46d59248b
SHA1 hash:
5031c8d479988ff22716c13646fc6ba8cd6a78d8
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/5f2fe52b-f888-4a78-94c9-3a673952edd6/
Parent samples :
eba602f26ca14d5e494059001ecf363110ba504d9e0184b8abfa45905bd650cc
3ff3db68a75d4c52f3910396564f35999b3571ed75850df0c403b851433582ec
285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23
54f015287731308328345efdc18a593d3b5a57efdd04278efb9da7f5127df37f
ca081d2e9e512e1516edc180262c4309dda83ad714a281abd26fc1a658bced01
c3f39d499f8599e009697219a0c0f9b5fd91848b693fcaf4abdc0d15bdc67de0
44123cf2ed8f575c4643cacfcd51e18188edeca34b343af433c98ac03fb691ea
76f35c8ecea90bb9709af24f9183489a711f04fc00f26d3cae74fbcdf7bde6c5
d539ab19fd873bd36c22b38f3d8a85683220a7bcce13a9c962652d6165c33c2e
ef9e1440789a46cd00ebe7bde8526eefd00e6d1363299d3ae3c1b01e891d7b35
SH256 hash:
534637092c91da4c8c0aceda390bdeb2569fdeff9ef18c3eab159aa598e4a6c9
MD5 hash:
55d78a219b19e485fc2ff2a68996bde6
SHA1 hash:
7b26d8b63ae0a40c1fa5672faf6f9e15be7cc040
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/5f2fe52b-f888-4a78-94c9-3a673952edd6/
SH256 hash:
f7b2a1307788383e625f5e97e8b6493d83d3d5dc92e6668b4021089c31f95b60
MD5 hash:
01dee027b928c11106c8eedee12872e5
SHA1 hash:
9688743d5cb6c7d6bf8bc89b32c8336f3f12293d
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/5f2fe52b-f888-4a78-94c9-3a673952edd6/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/285bd22ba49a/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/285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
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 285bd22ba49a3de603e9fff856a0bd3111e43629ad29e24bb41178afd93ece23

(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 (HIGH_ENTROPY_VA)high

Comments