MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38. 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: 17


Intelligence 17 IOCs YARA 22 File information Comments
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SHA256 hash: b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38
SHA3-384 hash: 4425e67893d4acf6d8b20753c81a4b9081ed611adcd157ca56ca961c0259c7a7c3d4b8fc6fcb63a2cd32db59b6f89a02
SHA1 hash: be7110936e3f11abe294a03af916ba8f4f76bc38
MD5 hash: 628c83e58275913f3bdf1b328d89d39e
humanhash: whiskey-july-bacon-eleven
File name:Nuevo orden pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'830'400 bytes
First seen:2025-02-24 13:05:19 UTC
Last seen:2025-03-10 11:29:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:i8VJZZYMV3qfxyx7TWe+v76slEBEVVGYGP0EN4d3owNvdIa0IAY/oIn/EKndnvAY:iSnq0x7TWeO7TltVGYGsXGQrndn4TxD
TLSH T13A85E10473B8B92FDD5D8370E482905587F0E0A6E686EBE71E8376F6281B7637D0512B
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 abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
43
Origin country :
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
d08d191db5cdedde0a9d647ff4e33859f7ac11d594bf0beed41ad6cd19d9200c
Verdict:
Malicious activity
Analysis date:
2025-02-24 08:12:59 UTC
Tags:
arch-exec formbook stealer xloader
Link:
https://app.any.run/tasks/4d55777c-34a8-4bbf-992c-09d6c38e132e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67bc2a0a28ab76d43a5cd096
Tags:
underscore phishing autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
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:
obfuscated obfuscated packed packed packer_detected stealer
Link:
https://www.filescan.io/uploads/67bc6ed2298112176da0bafc/reports/d8c38fd6-611a-4df9-93b3-710600ef90b6/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ac1d2f24-e435-4dfa-9937-909c0de59724
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1622732
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Drops VBS files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1622732 Sample: Nuevo orden pdf.exe Startdate: 24/02/2025 Architecture: WINDOWS Score: 100 43 www.opsjdl.xyz 2->43 45 www.s94ngz.pro 2->45 47 10 other IPs or domains 2->47 57 Suricata IDS alerts for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 65 10 other signatures 2->65 11 Nuevo orden pdf.exe 5 2->11         started        signatures3 63 Performs DNS queries to domains with low reputation 43->63 process4 file5 37 C:\Users\user\AppData\Roaming\IsClosed.exe, PE32 11->37 dropped 39 C:\Users\user\AppData\...\IsClosed.vbs, ASCII 11->39 dropped 41 C:\Users\...\IsClosed.exe:Zone.Identifier, ASCII 11->41 dropped 81 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->81 83 Writes to foreign memory regions 11->83 85 Injects a PE file into a foreign processes 11->85 15 InstallUtil.exe 11->15         started        signatures6 process7 signatures8 87 Modifies the context of a thread in another process (thread injection) 15->87 89 Maps a DLL or memory area into another process 15->89 91 Sample uses process hollowing technique 15->91 93 4 other signatures 15->93 18 explorer.exe 72 2 15->18 injected process9 dnsIp10 49 agproject.net 109.95.159.1, 50485, 80 DHOSTING-ASWarsawPolandPL Poland 18->49 21 control.exe 18->21         started        24 wscript.exe 1 18->24         started        26 InstallUtil.exe 18->26         started        28 chkdsk.exe 18->28         started        process11 signatures12 67 Modifies the context of a thread in another process (thread injection) 21->67 69 Maps a DLL or memory area into another process 21->69 71 Tries to detect virtualization through RDTSC time measurements 21->71 73 Switches to a custom stack to bypass stack traces 21->73 30 cmd.exe 1 21->30         started        75 Windows Scripting host queries suspicious COM object (likely to drop second stage) 24->75 32 IsClosed.exe 2 24->32         started        77 Sample uses process hollowing technique 26->77 79 Found direct / indirect Syscall (likely to bypass EDR) 26->79 process13 signatures14 35 conhost.exe 30->35         started        51 Multi AV Scanner detection for dropped file 32->51 53 Writes to foreign memory regions 32->53 55 Injects a PE file into a foreign processes 32->55 process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38/
Threat name:
Win32.Exploit.Generic
Create hunting rule
Status:
Malicious
First seen:
2025-02-24 08:14:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wspufzpvsdk47itmpxpe6dpqwkbtkguwkl7efrase76u5np2zq4a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ka18 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250224-qb7vyatny5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Formbook payload
Formbook
Formbook family
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4ba79b62-93b5-4958-9739-55b6a15348a7
Unpacked files
SH256 hash:
b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38
MD5 hash:
628c83e58275913f3bdf1b328d89d39e
SHA1 hash:
be7110936e3f11abe294a03af916ba8f4f76bc38
Link:
https://www.unpac.me/results/6a9645d5-10c8-43c1-add5-a5a97e66d815/
SH256 hash:
8bc02e9880ac5a550c15815dcfd875354d8eb4bfb991f77f77a08e21248c2586
MD5 hash:
fd43a69aec1cc90947bfbe4823403ea9
SHA1 hash:
b540b09b91eb0f22048839e3e45b6da85169434b
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/6a9645d5-10c8-43c1-add5-a5a97e66d815/
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
Link:
https://www.unpac.me/results/6a9645d5-10c8-43c1-add5-a5a97e66d815/
SH256 hash:
0494d61f6fc71abd03458adeb607d0da8668cb4ff9fe9a6572f9903cf811c532
MD5 hash:
831cf3d9ad6423c4d0706738dd147bc0
SHA1 hash:
40a0d2fbc9b7f72738018b285948528990f16aa5
Link:
https://www.unpac.me/results/6a9645d5-10c8-43c1-add5-a5a97e66d815/
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/6a9645d5-10c8-43c1-add5-a5a97e66d815/
SH256 hash:
81ac6070fd7c119842a26f7e0b67afd601449e951d5e0530516175f42e2a41c2
MD5 hash:
6cdbccd98c8de321737a6c1323056a47
SHA1 hash:
fb1450368440d6b8cc53b4a034a93438641fa6a2
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/6a9645d5-10c8-43c1-add5-a5a97e66d815/
Parent samples :
b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38
f33c42a1488ff1ff6d6046cb550f2ee60ceb18b177c75dde15fec0fc976af648
0b60052aa9546ed87efc290486a10497e80c98fe11ff92ccf8e489e6dc6d0927
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b49f42e5f590/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/b49f42e5f590d5cfa26c7dde4f0df0b283351a9652fe42c41227fd4eb5facc38

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:DebuggerException__SetConsoleCtrl
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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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.

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